diff --git a/doc/guix.texi b/doc/guix.texi
index 468e0a2e53..8146417236 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -17500,16 +17500,17 @@ CUPS service will generate a self-signed certificate if needed, for
 secure connections to the print server.
 
 Suppose you want to enable the Web interface of CUPS and also add
-support for Epson printers @i{via} the @code{escpr} package and for HP
-printers @i{via} the @code{hplip-minimal} package.  You can do that directly,
-like this (you need to use the @code{(gnu packages cups)} module):
+support for Epson printers @i{via} the @code{epson-inkjet-printer-escpr}
+package and for HP printers @i{via} the @code{hplip-minimal} package.
+You can do that directly, like this (you need to use the
+@code{(gnu packages cups)} module):
 
 @lisp
 (service cups-service-type
          (cups-configuration
            (web-interface? #t)
            (extensions
-             (list cups-filters escpr hplip-minimal))))
+             (list cups-filters epson-inkjet-printer-escpr hplip-minimal))))
 @end lisp
 
 Note: If you wish to use the Qt5 based GUI which comes with the hplip
@@ -17538,7 +17539,7 @@ Available @code{cups-configuration} fields are:
 The CUPS package.
 @end deftypevr
 
-@deftypevr {@code{cups-configuration} parameter} package-list extensions (default: @code{(list escpr hplip-minimal foomatic-filters)})
+@deftypevr {@code{cups-configuration} parameter} package-list extensions (default: @code{(list epson-inkjet-printer-escpr hplip-minimal foomatic-filters splix)})
 Drivers and other extensions to the CUPS package.
 @end deftypevr
 
diff --git a/gnu/build/linux-initrd.scm b/gnu/build/linux-initrd.scm
index ea7de58553..99796adba6 100644
--- a/gnu/build/linux-initrd.scm
+++ b/gnu/build/linux-initrd.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2018, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -39,8 +39,9 @@ (define* (write-cpio-archive output directory
                              #:key
                              (compress? #t)
                              (gzip "gzip"))
-  "Write a cpio archive containing DIRECTORY to file OUTPUT.  When
-COMPRESS? is true, compress it using GZIP.  On success, return OUTPUT."
+  "Write a cpio archive containing DIRECTORY to file OUTPUT, with reset
+timestamps in the archive.  When COMPRESS? is true, compress it using GZIP.
+On success, return OUTPUT."
 
   ;; Note: as per `ramfs-rootfs-initramfs.txt', always add directory entries
   ;; before the files that are inside of it: "The Linux kernel cpio
@@ -141,12 +142,6 @@ (define* (build-initrd output
     (symlink (string-append guile "/bin/guile") "proc/self/exe")
     (readlink "proc/self/exe")
 
-    ;; Reset the timestamps of all the files that will make it in the initrd.
-    (for-each (lambda (file)
-                (unless (eq? 'symlink (stat:type (lstat file)))
-                  (utime file 0 0 0 0)))
-              (find-files "." ".*"))
-
     (write-cpio-archive output "." #:gzip gzip))
 
   ;; Make sure directories are writable so we can delete files.
diff --git a/gnu/ci.scm b/gnu/ci.scm
index bf9952a450..a5afef91ae 100644
--- a/gnu/ci.scm
+++ b/gnu/ci.scm
@@ -57,6 +57,7 @@ (define-module (gnu ci)
   #:use-module (gnu system install)
   #:use-module (gnu system images hurd)
   #:use-module (gnu system images pine64)
+  #:use-module (gnu system images pinebook-pro)
   #:use-module (gnu tests)
   #:use-module (srfi srfi-1)
   #:use-module (srfi srfi-26)
@@ -205,7 +206,8 @@ (define %guix-system-supported-systems
 
 (define %guix-system-images
   (list hurd-barebones-qcow2-image
-        pine64-barebones-raw-image))
+        pine64-barebones-raw-image
+        pinebook-pro-barebones-raw-image))
 
 (define (image-jobs store system)
   "Return a list of jobs that build images for SYSTEM."
diff --git a/gnu/local.mk b/gnu/local.mk
index 42a0e09e47..49d7ea93b3 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -652,6 +652,7 @@ GNU_SYSTEM_MODULES =				\
 						\
   %D%/system/images/hurd.scm			\
   %D%/system/images/pine64.scm			\
+  %D%/system/images/pinebook-pro.scm		\
 						\
   %D%/machine.scm				\
 						\
@@ -989,6 +990,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/freedink-engine-fix-sdl-hints.patch	\
   %D%/packages/patches/freeimage-unbundle.patch		\
   %D%/packages/patches/fuse-overlapping-headers.patch				\
+  %D%/packages/patches/gajim-honour-GAJIM_PLUGIN_PATH.patch	\
   %D%/packages/patches/ganeti-deterministic-manual.patch	\
   %D%/packages/patches/ganeti-disable-version-symlinks.patch	\
   %D%/packages/patches/ganeti-drbd-compat.patch			\
@@ -1717,7 +1719,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/xplanet-1.3.1-libimage_gif.c.patch	\
   %D%/packages/patches/xplanet-1.3.1-xpUtil-Add2017LeapSecond.cpp.patch	\
   %D%/packages/patches/xpra-4.0.1-systemd-run.patch	\
-  %D%/packages/patches/xpra-4.0.4-norequests.patch	\
   %D%/packages/patches/xsane-fix-memory-leak.patch		\
   %D%/packages/patches/xsane-fix-pdf-floats.patch		\
   %D%/packages/patches/xsane-fix-snprintf-buffer-length.patch	\
diff --git a/gnu/packages/admin.scm b/gnu/packages/admin.scm
index f3bd7ffab2..1ea6f975ff 100644
--- a/gnu/packages/admin.scm
+++ b/gnu/packages/admin.scm
@@ -4131,7 +4131,7 @@ (define-public nmrpflash
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/jclehner/nmrpflash.git")
+         (url "https://github.com/jclehner/nmrpflash")
          (commit (string-append "v" version))))
        (sha256
         (base32 "1fdjrxhjs96rdclbkld57xarf592slhkp79h46z833npxpn12ck1"))
diff --git a/gnu/packages/aidc.scm b/gnu/packages/aidc.scm
index 3facc6894f..6628a8ead3 100644
--- a/gnu/packages/aidc.scm
+++ b/gnu/packages/aidc.scm
@@ -50,7 +50,7 @@ (define-public zxing-cpp
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/nu-book/zxing-cpp.git")
+         (url "https://github.com/nu-book/zxing-cpp")
          (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
diff --git a/gnu/packages/algebra.scm b/gnu/packages/algebra.scm
index ed35a6832f..1c485a3f07 100644
--- a/gnu/packages/algebra.scm
+++ b/gnu/packages/algebra.scm
@@ -1005,7 +1005,7 @@ (define-public symengine
 (define-public eigen
   (package
     (name "eigen")
-    (version "3.3.7")
+    (version "3.3.8")
     (source (origin
               (method url-fetch)
               (uri (list
@@ -1015,7 +1015,7 @@ (define-public eigen
                                     version ".orig.tar.bz2")))
               (sha256
                (base32
-                "1km3fyfzyqfdvmnl79drps3fjwnz3zbh0c7l34mfbqyvvs8cy4wz"))
+                "1vxrsncfnkyq6gwxpsannpryp12mk7lc8f42ybvz3saf7icwc582"))
               (file-name (string-append name "-" version ".tar.bz2"))
               (patches (search-patches "eigen-stabilise-sparseqr-test.patch"))
               (modules '((guix build utils)))
diff --git a/gnu/packages/assembly.scm b/gnu/packages/assembly.scm
index 7fd469e950..a20ae542ce 100644
--- a/gnu/packages/assembly.scm
+++ b/gnu/packages/assembly.scm
@@ -444,7 +444,7 @@ (define-public intel-xed
            (origin
              (method git-fetch)
              (uri (git-reference
-                   (url "https://github.com/intelxed/mbuild.git")
+                   (url "https://github.com/intelxed/mbuild")
                    (commit "5304b94361fccd830c0e2417535a866b79c1c297")))
              (sha256
               (base32
diff --git a/gnu/packages/audio.scm b/gnu/packages/audio.scm
index 3332e5b6d3..df8b8efcf1 100644
--- a/gnu/packages/audio.scm
+++ b/gnu/packages/audio.scm
@@ -140,7 +140,7 @@ (define-public opensles
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/KhronosGroup/OpenSL-ES-Registry.git")
+         (url "https://github.com/KhronosGroup/OpenSL-ES-Registry")
          (commit "ea5104bf37bf525c25e6ae2386586048179d0fda")))
        (file-name (git-file-name name version))
        (sha256
@@ -202,7 +202,7 @@ (define-public wildmidi
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/Mindwerks/wildmidi.git")
+         (url "https://github.com/Mindwerks/wildmidi")
          (commit (string-append name "-" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -277,7 +277,7 @@ (define-public tinyalsa
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/tinyalsa/tinyalsa.git")
+         (url "https://github.com/tinyalsa/tinyalsa")
          (commit version)))
        (file-name (git-file-name name version))
        (sha256
diff --git a/gnu/packages/browser-extensions.scm b/gnu/packages/browser-extensions.scm
index 826767092a..688a1373e3 100644
--- a/gnu/packages/browser-extensions.scm
+++ b/gnu/packages/browser-extensions.scm
@@ -53,7 +53,7 @@ (define uassets
     (origin
       (method git-fetch)
       (uri (git-reference
-            (url "https://github.com/uBlockOrigin/uAssets.git")
+            (url "https://github.com/uBlockOrigin/uAssets")
             (commit commit)))
       (file-name (git-file-name "uAssets" (string-take commit 9)))
       (sha256
@@ -63,7 +63,7 @@ (define uassets
 (define ublock-origin
   (package
     (name "ublock-origin")
-    (version "1.30.6")
+    (version "1.31.0")
     (home-page "https://github.com/gorhill/uBlock")
     (source (origin
               (method git-fetch)
@@ -71,7 +71,7 @@ (define ublock-origin
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "10arx4r4s8125g9zlh3bcjpcb4qh2wzfmvqc2x8nly5fbxvxvns3"))))
+                "1wfg1g061l83fqwllp8q1jr1kvwxy2kbbzfk6ynlf18kjng9v3h5"))))
     (build-system gnu-build-system)
     (outputs '("xpi" "firefox" "chromium"))
     (arguments
diff --git a/gnu/packages/check.scm b/gnu/packages/check.scm
index 0ca0653a54..cf9b85d592 100644
--- a/gnu/packages/check.scm
+++ b/gnu/packages/check.scm
@@ -119,7 +119,7 @@ (define-public mutest
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/ebassi/mutest.git")
+         (url "https://github.com/ebassi/mutest")
          (commit "e6246c9")))
        (file-name (git-file-name name version))
        (sha256
@@ -1427,14 +1427,14 @@ (define-public python2-testresources
 (define-public python-subunit-bootstrap
   (package
     (name "python-subunit-bootstrap")
-    (version "1.3.0")
+    (version "1.4.0")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "python-subunit" version))
        (sha256
         (base32
-         "1fsw8rsn1s3nklx06mayrg5rn2zbky6wwjc5z07s7rf1wjzfs1wn"))))
+         "0j0ymmnc5nfxi1qzvy59j27viqca7l7xd0y9x29g7yr0h693j804"))))
     (build-system python-build-system)
     (propagated-inputs
      `(("python-extras" ,python-extras)
diff --git a/gnu/packages/clojure.scm b/gnu/packages/clojure.scm
index e66132ab40..5b238ab996 100644
--- a/gnu/packages/clojure.scm
+++ b/gnu/packages/clojure.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2018 Alex Vong <alexvong1995@gmail.com>
 ;;; Copyright © 2018 Pierre Neidhardt <mail@ambrevar.xyz>
 ;;; Copyright © 2019 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2019 Jesse Gibbons <jgibbons2357+guix@gmail.com>
 ;;; Copyright © 2020 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -21,6 +22,7 @@
 
 (define-module (gnu packages clojure)
   #:use-module (gnu packages)
+  #:use-module (gnu packages java)
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix packages)
   #:use-module (guix download)
@@ -78,6 +80,8 @@ (define-public clojure
                   (sha256
                    (base32 "1kcyv2836acs27vi75hvf3r773ahv2nlh9b3j9xa9m9sdanz1h83")))))
       (build-system ant-build-system)
+      (inputs
+       `(("jre" ,icedtea)))
       (arguments
        `(#:imported-modules ((guix build clojure-utils)
                              (guix build guile-build-system)
@@ -114,7 +118,23 @@ (define (extract-library name)
            (add-after 'install-license-files 'install-doc
              (cut install-doc #:doc-dirs '("doc/clojure/") <...>))
            (add-after 'install-doc 'install-javadoc
-             (install-javadoc "target/javadoc/")))))
+             (install-javadoc "target/javadoc/"))
+           (add-after 'install 'make-wrapper
+             (lambda* (#:key inputs outputs #:allow-other-keys)
+               (let* ((out (assoc-ref outputs "out"))
+                      (wrapper (string-append out "/bin/clojure")))
+                 (mkdir-p (string-append out "/bin"))
+                 (with-output-to-file wrapper
+                   (lambda _
+                     (display
+                      (string-append
+                       "#!"
+                       (which "sh")
+                       "\n\n"
+                       (assoc-ref inputs "jre") "/bin/java -jar "
+                       out "/share/java/clojure.jar \"$@\"\n"))))
+                 (chmod wrapper #o555))
+               #t)))))
       (native-inputs libraries)
       (home-page "https://clojure.org/")
       (synopsis "Lisp dialect running on the JVM")
diff --git a/gnu/packages/compression.scm b/gnu/packages/compression.scm
index 6764bb62c3..1d643cdff8 100644
--- a/gnu/packages/compression.scm
+++ b/gnu/packages/compression.scm
@@ -1302,7 +1302,7 @@ (define-public unshield
     (source
      (origin (method git-fetch)
              (uri (git-reference
-                    (url "http://github.com/twogood/unshield.git")
+                    (url "http://github.com/twogood/unshield")
                     (commit version)))
              (file-name (git-file-name name version))
              (sha256
diff --git a/gnu/packages/coq.scm b/gnu/packages/coq.scm
index e57e40c2ad..fb6a899b48 100644
--- a/gnu/packages/coq.scm
+++ b/gnu/packages/coq.scm
@@ -522,7 +522,7 @@ (define-public coq-autosubst
       (source (origin
                 (method git-fetch)
                 (uri (git-reference
-                      (url "git://github.com/uds-psl/autosubst.git")
+                      (url "git://github.com/uds-psl/autosubst")
                       (commit commit)))
                 (file-name (git-file-name name version))
                 (sha256
diff --git a/gnu/packages/crates-graphics.scm b/gnu/packages/crates-graphics.scm
index 9193479092..11bdd4c4f4 100644
--- a/gnu/packages/crates-graphics.scm
+++ b/gnu/packages/crates-graphics.scm
@@ -183,20 +183,12 @@ (define-public rust-aom-sys-0.1
     (arguments
      `(#:cargo-inputs
        (("rust-bindgen" ,rust-bindgen-0.53)
-        ("rust-metadeps" ,rust-metadeps-1.1))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'set-environmental-variable
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((clang (assoc-ref inputs "libclang")))
-               (setenv "LIBCLANG_PATH"
-                       (string-append clang "/lib")))
-             #t)))))
+        ("rust-metadeps" ,rust-metadeps-1.1))))
     (native-inputs
      `(("pkg-config" ,pkg-config)))
     (inputs
      `(("libaom" ,libaom)
-       ("libclang" ,clang)
+       ("clang" ,clang)
        ("llvm" ,llvm)))
     (home-page "https://github.com/rust-av/aom-rs")
     (synopsis "FFI bindings to aom")
@@ -402,19 +394,12 @@ (define-public rust-dav1d-sys-0.3
     (arguments
      `(#:cargo-inputs
        (("rust-bindgen" ,rust-bindgen-0.54)
-        ("rust-metadeps" ,rust-metadeps-1.1))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'set-environmental-variable
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((clang (assoc-ref inputs "libclang")))
-               (setenv "LIBCLANG_PATH"
-                       (string-append clang "/lib")))
-             #t)))))
+        ("rust-metadeps" ,rust-metadeps-1.1))))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
     (inputs
      `(("dav1d" ,dav1d)
-       ("pkg-config" ,pkg-config)
-       ("libclang" ,clang)
+       ("clang" ,clang)
        ("llvm" ,llvm)))
     (home-page "https://github.com/rust-av/dav1d-rs")
     (synopsis "FFI bindings to dav1d")
diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index f485142383..82e37a0f8d 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -39,6 +39,7 @@ (define-module (gnu packages crates-io)
   #:use-module (gnu packages compression)
   #:use-module (gnu packages crates-graphics)
   #:use-module (gnu packages crates-gtk)
+  #:use-module (gnu packages crypto)
   #:use-module (gnu packages curl)
   #:use-module (gnu packages databases)
   #:use-module (gnu packages fontutils)
@@ -1470,6 +1471,28 @@ (define-public rust-backtrace-sys-0.1
     (license (list license:asl2.0
                    license:expat))))
 
+(define-public rust-base58-0.1
+  (package
+    (name "rust-base58")
+    (version "0.1.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "base58" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "10xfw6v7jzn9i682mkw9nqybzafrvl3i2wawwgp5a8gh2n0fw92h"))))
+    (build-system cargo-build-system)
+    (home-page "https://github.com/debris/base58")
+    (synopsis "Tiny and fast base58 encoding")
+    (description
+     "Encode to base58 using only Rust.  This package is based on
+@url{https://github.com/trezor/trezor-crypto/blob/master/base58.c} at commit
+c6e7d37.  However, this package works only up to 128 bytes.")
+    (license license:expat)))
+
 (define-public rust-base64-0.12
   (package
     (name "rust-base64")
@@ -1726,11 +1749,6 @@ (define-public rust-bindgen-0.55
          (add-after 'unpack 'enable-unstable-features
            (lambda _
              (setenv "RUSTC_BOOTSTRAP" "1")
-             #t))
-         (add-before 'configure 'configure-clang
-           (lambda* (#:key inputs #:allow-other-keys)
-             (setenv "LIBCLANG_PATH" (string-append (assoc-ref inputs "clang")
-                                                    "/lib"))
              #t)))))
     (home-page "https://rust-lang.github.io/rust-bindgen/")
     (synopsis "Generate Rust FFI bindings to C and C++ libraries.")
@@ -1775,17 +1793,9 @@ (define-public rust-bindgen-0.54
        #:cargo-development-inputs
        (("rust-clap" ,rust-clap-2)
         ("rust-diff" ,rust-diff-0.1)
-        ("rust-shlex" ,rust-shlex-0.1))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'set-environmental-variable
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((clang (assoc-ref inputs "libclang")))
-               (setenv "LIBCLANG_PATH"
-                       (string-append clang "/lib")))
-             #t)))))
+        ("rust-shlex" ,rust-shlex-0.1))))
     (inputs
-     `(("libclang" ,clang)))))
+     `(("clang" ,clang)))))
 
 (define-public rust-bindgen-0.53
   (package
@@ -1822,15 +1832,7 @@ (define-public rust-bindgen-0.53
        #:cargo-development-inputs
        (("rust-clap" ,rust-clap-2)
         ("rust-diff" ,rust-diff-0.1)
-        ("rust-shlex" ,rust-shlex-0.1))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'set-environmental-variable
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((clang (assoc-ref inputs "libclang")))
-               (setenv "LIBCLANG_PATH"
-                       (string-append clang "/lib")))
-             #t)))))))
+        ("rust-shlex" ,rust-shlex-0.1))))))
 
 (define-public rust-bindgen-0.52
   (package
@@ -1868,15 +1870,7 @@ (define-public rust-bindgen-0.52
        #:cargo-development-inputs
        (("rust-clap" ,rust-clap-2)
         ("rust-diff" ,rust-diff-0.1)
-        ("rust-shlex" ,rust-shlex-0.1))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'set-environmental-variable
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((clang (assoc-ref inputs "libclang")))
-               (setenv "LIBCLANG_PATH"
-                       (string-append clang "/lib")))
-             #t)))))))
+        ("rust-shlex" ,rust-shlex-0.1))))))
 
 (define-public rust-bindgen-0.51
   (package
@@ -2647,6 +2641,37 @@ (define-public rust-brotli-decompressor-2
 and kernels.")
     (license (list license:bsd-3 license:expat))))
 
+(define-public rust-bs58-0.2
+  (package
+    (name "rust-bs58")
+    (version "0.2.5")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "bs58" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "125i962x0m0ggdif6ds51wfif2lypiicy469dj5j2l6rm6xycpn9"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-sha2" ,rust-sha2-0.8))
+       #:cargo-development-inputs
+       (("rust-assert-matches" ,rust-assert-matches-1.3)
+        ("rust-base58" ,rust-base58-0.1)
+        ("rust-rust-base58" ,rust-rust-base58-0.0))))
+    (home-page "https://github.com/mycorrhiza/bs58-rs")
+    (synopsis "Another Base58 codec implementation")
+    (description
+     "Another Base58 codec implementation.  Compared to the base58 crate this
+is significantly faster at decoding (about 2.4x as fast when decoding 32
+bytes), almost the same speed for encoding (about 3% slower when encoding 32
+bytes), doesn't have the 128 byte limitation and supports a configurable
+alphabet.")
+    (license (list license:asl2.0 license:expat))))
+
 (define-public rust-bstr-0.2
   (package
     (name "rust-bstr")
@@ -2695,6 +2720,35 @@ (define-public rust-bstr-0.1
         (base32
          "0nzi9vqhl56ws8gq39f3aj4qjrr4l3g5lbkkcj8xq1x4cb74wq2r"))))))
 
+(define-public rust-buffered-reader-0.9
+  (package
+    (name "rust-buffered-reader")
+    (version "0.9.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "buffered-reader" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "05rklfiia1k4c4ifpim08l22i0q0l3j9xdg2yh3njrp6w58z6z13"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-bzip2" ,rust-bzip2-0.3)
+        ("rust-flate2" ,rust-flate2-1)
+        ("rust-libc" ,rust-libc-0.2))))
+    (home-page "https://sequoia-pgp.org/")
+    (synopsis "Super-powered Reader")
+    (description
+     "Like the @code{BufRead} trait, the @code{BufferedReader} trait has an
+internal buffer that is directly exposed to the user.  This design enables two
+performance optimizations.  First, the use of an internal buffer amortizes
+system calls.  Second, exposing the internal buffer allows the user to work
+with data in place, which avoids another copy.")
+    (license license:gpl3)))
+
 (define-public rust-build-const-0.2
   (package
     (name "rust-build-const")
@@ -3447,17 +3501,9 @@ (define-public rust-cexpr-0.4
      `(#:cargo-inputs
        (("rust-nom" ,rust-nom-5))
        #:cargo-development-inputs
-       (("rust-clang-sys" ,rust-clang-sys-0.28))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'set-environmental-variable
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((clang (assoc-ref inputs "libclang")))
-               (setenv "LIBCLANG_PATH"
-                       (string-append clang "/lib")))
-             #t)))))
+       (("rust-clang-sys" ,rust-clang-sys-0.28))))
     (inputs
-     `(("libclang" ,clang)))
+     `(("clang" ,clang)))
     (home-page "https://github.com/jethrogb/rust-cexpr")
     (synopsis "C expression parser and evaluator")
     (description
@@ -3482,15 +3528,7 @@ (define-public rust-cexpr-0.3
      `(#:cargo-inputs
        (("rust-nom" ,rust-nom-4.2))
        #:cargo-development-inputs
-       (("rust-clang-sys" ,rust-clang-sys-0.28))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'set-environmental-variable
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((clang (assoc-ref inputs "libclang")))
-               (setenv "LIBCLANG_PATH"
-                       (string-append clang "/lib")))
-             #t)))))))
+       (("rust-clang-sys" ,rust-clang-sys-0.28))))))
 
 (define-public rust-cexpr-0.2
   (package
@@ -3511,15 +3549,7 @@ (define-public rust-cexpr-0.2
      `(#:cargo-inputs
        (("rust-nom" ,rust-nom-3))
        #:cargo-development-inputs
-       (("rust-clang-sys" ,rust-clang-sys-0.11))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'set-environmental-variable
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((clang (assoc-ref inputs "libclang")))
-               (setenv "LIBCLANG_PATH"
-                       (string-append clang "/lib")))
-             #t)))))))
+       (("rust-clang-sys" ,rust-clang-sys-0.11))))))
 
 (define-public rust-cfg-if-0.1
   (package
@@ -3622,20 +3652,12 @@ (define-public rust-clang-sys-1
          "0695kfrqx7n091fzm6msbqg2q2kyhka64q08lm63f3l9d964i8cx"))))
     (build-system cargo-build-system)
     (inputs
-     `(("libclang" ,clang)))
+     `(("clang" ,clang)))
     (arguments
      `(#:cargo-inputs
        (("rust-glob" ,rust-glob-0.3)
         ("rust-libc" ,rust-libc-0.2)
-        ("rust-libloading" ,rust-libloading-0.6))
-       #:phases
-       (modify-phases %standard-phases
-         (add-before 'configure 'configure-clang
-           (lambda* (#:key inputs #:allow-other-keys)
-             (setenv "LIBCLANG_PATH"
-                     (string-append (assoc-ref inputs "libclang")
-                                    "/lib"))
-             #t)))))
+        ("rust-libloading" ,rust-libloading-0.6))))
     (home-page "https://github.com/KyleMayes/clang-sys")
     (synopsis "Rust bindings for libclang")
     (description "This package provides Rust bindings for libclang.")
@@ -3659,15 +3681,7 @@ (define-public rust-clang-sys-0.29
      `(#:cargo-inputs
        (("rust-glob" ,rust-glob-0.3)
         ("rust-libc" ,rust-libc-0.2)
-        ("rust-libloading" ,rust-libloading-0.5))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'set-environmental-variable
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((clang (assoc-ref inputs "libclang")))
-               (setenv "LIBCLANG_PATH"
-                       (string-append clang "/lib")))
-             #t)))))))
+        ("rust-libloading" ,rust-libloading-0.5))))))
 
 (define-public rust-clang-sys-0.28
   (package
@@ -3700,15 +3714,7 @@ (define-public rust-clang-sys-0.26
      `(#:cargo-inputs
        (("rust-glob" ,rust-glob-0.2)
         ("rust-libc" ,rust-libc-0.2)
-        ("rust-libloading" ,rust-libloading-0.5))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'set-environmental-variable
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((clang (assoc-ref inputs "libclang")))
-               (setenv "LIBCLANG_PATH"
-                       (string-append clang "/lib")))
-             #t)))))))
+        ("rust-libloading" ,rust-libloading-0.5))))))
 
 (define-public rust-clang-sys-0.23
   (package
@@ -3745,15 +3751,7 @@ (define-public rust-clang-sys-0.22
        (("rust-clippy" ,rust-clippy-0.0)
         ("rust-glob" ,rust-glob-0.2)
         ("rust-libc" ,rust-libc-0.2)
-        ("rust-libloading" ,rust-libloading-0.5))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'set-environmental-variable
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((clang (assoc-ref inputs "libclang")))
-               (setenv "LIBCLANG_PATH"
-                       (string-append clang "/lib")))
-             #t)))))))
+        ("rust-libloading" ,rust-libloading-0.5))))))
 
 (define-public rust-clang-sys-0.11
   (package
@@ -3777,15 +3775,7 @@ (define-public rust-clang-sys-0.11
         ("rust-glob" ,rust-glob-0.2)
         ("rust-lazy-static" ,rust-lazy-static-0.2)
         ("rust-libc" ,rust-libc-0.2)
-        ("rust-libloading" ,rust-libloading-0.3))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'set-environmental-variable
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((clang (assoc-ref inputs "libclang")))
-               (setenv "LIBCLANG_PATH"
-                       (string-append clang "/lib")))
-             #t)))))))
+        ("rust-libloading" ,rust-libloading-0.3))))))
 
 (define-public rust-clap-2
   (package
@@ -4470,6 +4460,71 @@ (define-public rust-conv-0.3
 semantics than those provided by @code{as} or @code{From}/@code{Into}.")
     (license license:expat)))
 
+(define-public rust-cookie-0.12
+  (package
+    (name "rust-cookie")
+    (version "0.12.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "cookie" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1mdvqixahcywvqp0y8k2skkgbpfhsp0w73l9mz93dcrx1gq091l8"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-base64" ,rust-base64-0.10)
+        ("rust-ring" ,rust-ring-0.14)
+        ("rust-time" ,rust-time-0.1)
+        ("rust-url" ,rust-url-1))))
+    (home-page "https://github.com/SergioBenitez/cookie-rs")
+    (synopsis
+     "Crate for parsing HTTP cookie headers and managing a cookie jar")
+    (description
+     "Parse HTTP cookie headers and manage a cookie jar with this crate.
+It supports signed and private (encrypted + signed) jars.")
+    (license (list license:asl2.0 license:expat))))
+
+(define-public rust-cookie-store-0.7
+  (package
+    (name "rust-cookie-store")
+    (version "0.7.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "cookie-store" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "174i9k9g62pfx7y1nqynywdpjplkl3j4hi3ck6bz2r996qzhnxa6"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-cookie" ,rust-cookie-0.12)
+        ("rust-idna" ,rust-idna-0.1)
+        ("rust-log" ,rust-log-0.4)
+        ("rust-publicsuffix" ,rust-publicsuffix-1)
+        ("rust-serde" ,rust-serde-1)
+        ("rust-serde-json" ,rust-serde-json-1)
+        ("rust-time" ,rust-time-0.1)
+        ("rust-try-from" ,rust-try-from-0.3)
+        ("rust-url" ,rust-url-1))
+       #:cargo-development-inputs
+       (("rust-env-logger" ,rust-env-logger-0.6)
+        ("rust-pretty-assertions" ,rust-pretty-assertions-0.6))))
+    (home-page "https://github.com/pfernie/cookie_store")
+    (synopsis "Implementation of Cookie storage and retrieval per RFC6265")
+    (description
+     "This crate provides an implementation for storing and retrieving Cookies per
+the path and domain matching rules specified in RFC6265.
+
+Split from the user_agent crate.")
+    (license (list license:asl2.0 license:expat))))
+
 (define-public rust-cordic-0.1
   (package
     (name "rust-cordic")
@@ -5410,6 +5465,34 @@ (define-public rust-crypto-tests-0.5
 algorithms.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-cryptovec-0.4
+  (package
+    (name "rust-cryptovec")
+    (version "0.4.6")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "cryptovec" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1n88dmhfb2dxs48zllq1g1dya76zx4fajw482qy8jj4hgg1da4p4"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:tests? #f  ; CryptoVec::from_slice failed
+       #:cargo-inputs
+       (("rust-kernel32-sys" ,rust-kernel32-sys-0.2)
+        ("rust-libc" ,rust-libc-0.2)
+        ("rust-winapi" ,rust-winapi-0.2))))
+    (home-page "https://crates.io/crates/cryptovec")
+    (synopsis
+     "Vector which zeroes its memory on clears and reallocations")
+    (description
+     "This package provides a vector which zeroes its memory on clears and
+reallocations.")
+    (license license:asl2.0)))
+
 (define-public rust-cssparser-0.27
   (package
     (name "rust-cssparser")
@@ -5738,14 +5821,7 @@ (define-public rust-curl-sys-0.4
         ("rust-winapi" ,rust-winapi-0.3)
         ("rust-cc" ,rust-cc-1)
         ("rust-pkg-config" ,rust-pkg-config-0.3)
-        ("rust-vcpkg" ,rust-vcpkg-0.2))
-       #:phases
-       (modify-phases %standard-phases
-        (add-after 'unpack 'find-openssl
-          (lambda* (#:key inputs #:allow-other-keys)
-            (let ((openssl (assoc-ref inputs "openssl")))
-              (setenv "OPENSSL_DIR" openssl))
-            #t)))))
+        ("rust-vcpkg" ,rust-vcpkg-0.2))))
     (native-inputs
      `(("pkg-config" ,pkg-config)))
     (inputs
@@ -6555,6 +6631,28 @@ (define-public rust-difference-1
        #:cargo-development-inputs
        (("rust-term" ,rust-term-0.2))))))
 
+(define-public rust-diffs-0.3
+  (package
+    (name "rust-diffs")
+    (version "0.3.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "diffs" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "036sqycmir4bbl4016jprsyjq4hicc31r68dyqadmc8ac9pk55d1"))))
+    (build-system cargo-build-system)
+    (home-page "https://nest.pijul.com/pijul_org/pijul")
+    (synopsis "Diff algorithms, also called longest common subsequence")
+    (description
+     "This package provides a number of diff algorithms, also called longest
+common subsequence.  The diff algorithms include Myer's diff and Patience
+diff.")
+    (license (list license:asl2.0 license:expat))))
+
 (define-public rust-digest-0.9
   (package
     (name "rust-digest")
@@ -7578,6 +7676,26 @@ (define-public rust-enum-as-inner-0.3
 accessor functions on enums.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-enum-as-inner-0.2
+  (package
+    (inherit rust-enum-as-inner-0.3)
+    (name "rust-enum-as-inner")
+    (version "0.2.1")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (crate-uri "enum-as-inner" version))
+        (file-name
+         (string-append name "-" version ".tar.gz"))
+        (sha256
+         (base32
+          "0zg3h7k3g1z7a9ayqy63sk302d4dg5g2h274ddv80mj4jxn2cn1x"))))
+    (arguments
+     `(#:cargo-inputs
+       (("rust-proc-macro2" ,rust-proc-macro2-0.4)
+        ("rust-quote" ,rust-quote-0.6)
+        ("rust-syn" ,rust-syn-0.15))))))
+
 (define-public rust-env-logger-0.7
   (package
     (name "rust-env-logger")
@@ -9812,6 +9930,31 @@ (define-public rust-genmesh-0.6
      "This package provides a package for generating 3D meshes/")
     (license license:asl2.0)))
 
+(define-public rust-getch-0.2
+  (package
+    (name "rust-getch")
+    (version "0.2.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "getch" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "00in8q95qi8a5q3zn2zcaqp5avj79f5myd2a4zfdy2m24ycvbc5v"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-libc" ,rust-libc-0.2)
+        ("rust-termios" ,rust-termios-0.2))))
+    (home-page "https://nest.pijul.com/pijul_org/getch")
+    (synopsis "Portable implementation of getch")
+    (description
+     "This package provides a portable implementation of getch, using
+@code{_getch} on Windows, and @code{termios} on Unix.")
+    (license license:asl2.0)))
+
 (define-public rust-getopts-0.2
   (package
     (name "rust-getopts")
@@ -9887,14 +10030,7 @@ (define-public rust-gettext-rs-0.5
     (arguments
      `(#:cargo-inputs
        (("rust-gettext-sys" ,rust-gettext-sys-0.19)
-        ("rust-locale-config" ,rust-locale-config-0.3))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'configure 'use-system-gettext
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((gettext (assoc-ref inputs "gettext")))
-               (setenv "GETTEXT_SYSTEM" gettext)
-               #t))))))
+        ("rust-locale-config" ,rust-locale-config-0.3))))
     (inputs
      `(("gettext" ,gettext-minimal)))
     (home-page "https://github.com/Koka/gettext-rs")
@@ -9919,14 +10055,7 @@ (define-public rust-gettext-rs-0.4
     (arguments
      `(#:cargo-inputs
        (("rust-gettext-sys" ,rust-gettext-sys-0.19)
-        ("rust-locale-config" ,rust-locale-config-0.2))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'configure 'use-system-gettext
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((gettext (assoc-ref inputs "gettext")))
-               (setenv "GETTEXT_SYSTEM" gettext)
-               #t))))))))
+        ("rust-locale-config" ,rust-locale-config-0.2))))))
 
 (define-public rust-gettext-sys-0.19
   (package
@@ -9947,14 +10076,7 @@ (define-public rust-gettext-sys-0.19
     (build-system cargo-build-system)
     (arguments
      `(#:cargo-inputs
-       (("rust-cc" ,rust-cc-1))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'configure 'use-system-gettext
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((gettext (assoc-ref inputs "gettext")))
-               (setenv "GETTEXT_SYSTEM" gettext)
-               #t))))))
+       (("rust-cc" ,rust-cc-1))))
     (inputs
      `(("gettext" ,gettext-minimal)))
     (home-page "https://github.com/Koka/gettext-rs")
@@ -10119,10 +10241,11 @@ (define-public rust-git2-0.11
         ("rust-thread-id" ,rust-thread-id-3)
         ("rust-time" ,rust-time-0.1))))
     (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
      `(("libgit2" ,libgit2)
        ("libssh2" ,libssh2)
        ("openssl" ,openssl)
-       ("pkg-config" ,pkg-config)
        ("zlib" ,zlib)))
     (home-page "https://github.com/rust-lang/git2-rs")
     (synopsis "Rust bindings to libgit2")
@@ -11684,6 +11807,40 @@ (define-public rust-hyper-0.12
         ("rust-tokio-mockstream" ,rust-tokio-mockstream-1)
         ("rust-url" ,rust-url-1))))))
 
+(define-public rust-hyper-old-types-0.11
+  (package
+    (name "rust-hyper-old-types")
+    (version "0.11.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "hyper-old-types" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1i69sks0bwamzqdbx8ffgkssxffv6crdmwjgl47nr5pkxi8vx5k8"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:tests? #f ; Tests do not compile
+       #:cargo-inputs
+       (("rust-base64" ,rust-base64-0.9)
+        ("rust-bytes" ,rust-bytes-0.4)
+        ("rust-http" ,rust-http-0.1)
+        ("rust-httparse" ,rust-httparse-1)
+        ("rust-language-tags" ,rust-language-tags-0.2)
+        ("rust-log" ,rust-log-0.4)
+        ("rust-mime" ,rust-mime-0.3)
+        ("rust-percent-encoding" ,rust-percent-encoding-1.0)
+        ("rust-time" ,rust-time-0.1)
+        ("rust-unicase" ,rust-unicase-2))))
+    (home-page "https://hyper.rs")
+    (synopsis "HTTP types from hyper 0.11.x")
+    (description
+     "This package contains HTTP types from the newer hyper crate in versions
+0.11.x.")
+    (license license:expat)))
+
 (define-public rust-hyper-rustls-0.21
   (package
     (name "rust-hyper-rustls")
@@ -13325,18 +13482,12 @@ (define-public rust-libgit2-sys-0.10
         ("rust-openssl-sys" ,rust-openssl-sys-0.9)
         ;; Build dependencies:
         ("rust-cc" ,rust-cc-1)
-        ("rust-pkg-config" ,rust-pkg-config-0.3))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'configure 'dont-vendor-sources
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((openssl (assoc-ref inputs "openssl")))
-               (setenv "OPENSSL_DIR" openssl))
-             #t)))))
+        ("rust-pkg-config" ,rust-pkg-config-0.3))))
     (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
      `(("libgit2" ,libgit2)
        ("openssl" ,openssl)
-       ("pkg-config" ,pkg-config)
        ("zlib" ,zlib)))
     (home-page "https://github.com/rust-lang/git2-rs")
     (synopsis "Native bindings to the libgit2 library")
@@ -13577,6 +13728,69 @@ (define-public rust-libnghttp2-sys-0.1
     (license (list license:asl2.0
                    license:expat))))
 
+(define-public rust-libpijul-0.12
+  (package
+    (name "rust-libpijul")
+    (version "0.12.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "libpijul" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "18d9n8xaq5ncq3375f0xrr96l8si1frczgzdlrz3fl1jby8vbl6f"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:tests? #f  ; backend::file_header::test_fileheader_alignment fails
+       #:cargo-inputs
+       (("rust-base64" ,rust-base64-0.10)
+        ("rust-bincode" ,rust-bincode-1)
+        ("rust-bitflags" ,rust-bitflags-1)
+        ("rust-bs58" ,rust-bs58-0.2)
+        ("rust-byteorder" ,rust-byteorder-1)
+        ("rust-chrono" ,rust-chrono-0.4)
+        ("rust-diffs" ,rust-diffs-0.3)
+        ("rust-failure" ,rust-failure-0.1)
+        ("rust-flate2" ,rust-flate2-1)
+        ("rust-hex" ,rust-hex-0.3)
+        ("rust-ignore" ,rust-ignore-0.4)
+        ("rust-log" ,rust-log-0.4)
+        ("rust-openssl" ,rust-openssl-0.10)
+        ("rust-rand" ,rust-rand-0.6)
+        ("rust-sanakirja" ,rust-sanakirja-0.10)
+        ("rust-sequoia-openpgp" ,rust-sequoia-openpgp-0.9)
+        ("rust-serde" ,rust-serde-1)
+        ("rust-serde-derive" ,rust-serde-derive-1)
+        ("rust-serde-json" ,rust-serde-json-1)
+        ("rust-tempdir" ,rust-tempdir-0.3)
+        ("rust-toml" ,rust-toml-0.4))))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("clang" ,clang)
+       ("nettle" ,nettle)
+       ("openssl" ,openssl)))
+    (home-page "https://pijul.org/")
+    (synopsis "Library component of the pijul version control system")
+    (description
+     "This crate contains the core API to access Pijul repositories.
+
+The key object is a @code{Repository}, on which @code{Txn} (immutable
+transactions) and @code{MutTxn} (mutable transactions) can be started, to
+perform a variety of operations.
+
+Another important object is a @code{Patch}, which encodes two different pieces
+of information:
+
+@itemize
+@item Information about deleted and inserted lines between two versions of a
+file.
+@item Information about file moves, additions and deletions.
+@end itemize")
+    (license license:gpl2+)))
+
 (define-public rust-libsqlite3-sys-0.15
   (package
     (name "rust-libsqlite3-sys")
@@ -13640,6 +13854,38 @@ (define-public rust-libz-sys-1
     (license (list license:asl2.0
                    license:expat))))
 
+(define-public rust-line-0.1
+  (package
+    (name "rust-line")
+    (version "0.1.15")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "line" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "0pissvrl5398701zlfd22w51ca32vhw83vbsl58a330hr4w5ra04"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-libc" ,rust-libc-0.2)
+        ("rust-utf8parse" ,rust-utf8parse-0.1))))
+    (home-page "https://crates.io/crates/line")
+    (synopsis "Rust implementation of line editing in a terminal")
+    (description
+     "The main goals of this library are:
+
+@itemize
+@item Portability: should work on any system (Unix or Windows).
+@item Support: was written for a real-world project (Pijul), so support is
+unlikely to stop soon.
+@item Output quality: avoid usual blinking terminal lines that older C
+libraries have.
+@end itemize")
+    (license (list license:asl2.0 license:expat))))
+
 (define-public rust-line-wrap-0.1
   (package
     (name "rust-line-wrap")
@@ -13759,18 +14005,12 @@ (define-public rust-libssh2-sys-0.2
         ;; Build dependencies:
         ("rust-cc" ,rust-cc-1)
         ("rust-pkg-config" ,rust-pkg-config-0.3)
-        ("rust-vcpkg" ,rust-vcpkg-0.2))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'configure 'dont-vendor-sources
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((openssl (assoc-ref inputs "openssl")))
-               (setenv "OPENSSL_DIR" openssl))
-             #t)))))
+        ("rust-vcpkg" ,rust-vcpkg-0.2))))
     (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
      `(("libssh2" ,libssh2)
        ("openssl" ,openssl)
-       ("pkg-config" ,pkg-config)
        ("zlib" ,zlib)))
     (home-page "https://github.com/alexcrichton/ssh2-rs")
     (synopsis "Native bindings to the libssh2 library")
@@ -14402,6 +14642,31 @@ (define-public rust-matches-0.1
 whether an expression matches a pattern.")
     (license license:expat)))
 
+(define-public rust-matchers-0.0
+  (package
+    (name "rust-matchers")
+    (version "0.0.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "matchers" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1q8ckqmkjqkznvdi9x0z769yz2bmvlqcwx51ad2lpk4mfmgpi6gh"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-regex-automata" ,rust-regex-automata-0.1))))
+    (home-page "https://github.com/hawkw/matchers")
+    (synopsis "Regex matching on character and byte streams")
+    (description
+     "Use this crate to match on character and byte streams using regular
+grammars.  It provides the subset of the regex crate that only deals with
+matching, not parsing substrings.")
+    (license license:expat)))
+
 (define-public rust-matrixmultiply-0.2
   (package
     (name "rust-matrixmultiply")
@@ -15635,17 +15900,11 @@ (define-public rust-native-tls-0.2
         ("rust-security-framework-sys" ,rust-security-framework-sys-0.3)
         ("rust-tempfile" ,rust-tempfile-3))
        #:cargo-development-inputs
-       (("rust-hex" ,rust-hex-0.3))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'find-openssl
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((openssl (assoc-ref inputs "openssl")))
-               (setenv "OPENSSL_DIR" openssl))
-             #t)))))
+       (("rust-hex" ,rust-hex-0.3))))
     (native-inputs
-     `(("openssl" ,openssl)
-       ("pkg-config" ,pkg-config)))
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("openssl" ,openssl)))
     (home-page "https://github.com/sfackler/rust-native-tls")
     (synopsis
      "Wrapper over a platform's native TLS implementation")
@@ -15728,21 +15987,27 @@ (define-public rust-nettle-7
         ("rust-thiserror" ,rust-thiserror-1))
        #:cargo-development-inputs
        (("rust-bindgen" ,rust-bindgen-0.51)
-        ("rust-pkg-config" ,rust-pkg-config-0.3))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'set-missing-env-vars
-           (lambda* (#:key inputs #:allow-other-keys)
-             ;; FIXME: why do we need to set this?
-             (setenv "LIBCLANG_PATH"
-                     (string-append (assoc-ref inputs "clang") "/lib"))
-             #t)))))
+        ("rust-pkg-config" ,rust-pkg-config-0.3))))
     (home-page "https://gitlab.com/sequoia-pgp/nettle-rs")
   (synopsis "Rust bindings for the Nettle cryptographic library")
   (description "This package provides Rust bindings for the Nettle
 cryptographic library.")
   (license (list license:lgpl3 license:gpl2 license:gpl3))))
 
+(define-public rust-nettle-5
+  (package
+    (inherit rust-nettle-7)
+    (version "5.0.3")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "nettle" version))
+       (file-name
+        (string-append (package-name rust-nettle-7) "-" version ".tar.gz"))
+       (sha256
+        (base32 "0zfplqdf3mag8r7lc124hl24vri8yg711jmm8gl1mpwnlhass2n4"))
+       (patches (search-patches "rust-nettle-disable-vendor.patch"))))))
+
 (define-public rust-nettle-sys-2
   (package
     (name "rust-nettle-sys")
@@ -15762,8 +16027,7 @@ (define-public rust-nettle-sys-2
     (inputs
      `(("nettle", nettle)))
     (arguments
-     `(#:skip-build? #t
-       #:cargo-development-inputs
+     `(#:cargo-inputs
        (("rust-bindgen" ,rust-bindgen-0.51)
         ("rust-pkg-config" ,rust-pkg-config-0.3))))
     (home-page "https://gitlab.com/sequoia-pgp/nettle-sys")
@@ -17207,7 +17471,7 @@ (define-public rust-openssl-0.7
              (substitute* "Cargo.toml"
                ((", path =.*}") "}"))
              #t)))))
-    (native-inputs
+    (inputs
      `(("openssl" ,openssl-1.0))))) ; for openssl-sys-extras
 
 (define-public rust-openssl-probe-0.1
@@ -17251,17 +17515,11 @@ (define-public rust-openssl-sys-0.9
         ("rust-autocfg" ,rust-autocfg-1.0)
         ("rust-cc" ,rust-cc-1)
         ("rust-pkg-config" ,rust-pkg-config-0.3)
-        ("rust-vcpkg" ,rust-vcpkg-0.2))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'find-openssl
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((openssl (assoc-ref inputs "openssl")))
-               (setenv "OPENSSL_DIR" openssl))
-             #t)))))
+        ("rust-vcpkg" ,rust-vcpkg-0.2))))
     (native-inputs
-     `(("openssl" ,openssl)
-       ("pkg-config" ,pkg-config)))
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("openssl" ,openssl)))
     (home-page "https://github.com/sfackler/rust-openssl")
     (synopsis "FFI bindings to OpenSSL")
     (description
@@ -17295,14 +17553,7 @@ (define-public rust-openssl-sys-0.7
        (("rust-gdi32-sys" ,rust-gdi32-sys-0.2)
         ("rust-libc" ,rust-libc-0.2)
         ("rust-user32-sys" ,rust-user32-sys-0.2)
-        ("rust-pkg-config" ,rust-pkg-config-0.3))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'find-openssl
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((openssl (assoc-ref inputs "openssl")))
-               (setenv "OPENSSL_DIR" openssl))
-             #t)))))))
+        ("rust-pkg-config" ,rust-pkg-config-0.3))))))
 
 (define-public rust-openssl-sys-extras-0.7
   (package
@@ -17330,7 +17581,7 @@ (define-public rust-openssl-sys-extras-0.7
              (substitute* "Cargo.toml"
                ((", path =.*}") "}"))
              #t)))))
-    (native-inputs
+    (inputs
      `(("openssl" ,openssl-1.0)))   ; openssl-1.0 specifically
     (home-page "https://github.com/sfackler/rust-openssl")
     (synopsis
@@ -18075,6 +18326,27 @@ (define-public rust-path-clean-0.1
 path.Clean.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-pathdiff-0.1
+  (package
+    (name "rust-pathdiff")
+    (version "0.1.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "pathdiff" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "0cfg3isnx6mf3wbi7rsg4nmvywby40sbcs589n20fgi09l4p1gx3"))))
+    (build-system cargo-build-system)
+    (home-page "https://github.com/Manishearth/pathdiff")
+    (synopsis "Library for diffing paths to obtain relative paths")
+    (description
+     "Use diff_paths to construct a relative path from a provided base
+directory path to the provided path.")
+    (license (list license:asl2.0 license:expat))))
+
 (define-public rust-pbkdf2-0.4
   (package
     (name "rust-pbkdf2")
@@ -19706,6 +19978,38 @@ (define-public rust-procedural-masquerade-0.1
 @code{proc_macro_derive} pretend to be @code{proc_macro}.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-progrs-0.1
+  (package
+    (name "rust-progrs")
+    (version "0.1.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "progrs" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "108jx8jrv2r1brhvbqfw6fwx298k5fnw3m46kn7lv0jx2wmf0ifz"))))
+    (build-system cargo-build-system)
+    (arguments '(#:tests? #f))
+    (home-page "https://nest.pijul.com/laumann/progrs")
+    (synopsis "Small library for displaying compact progress bars")
+    (description
+     "There are a number of libraries out there that can be used for progress
+display, but in the author's opinion these libraries do it almost right -
+either they eat up too much screen real estate (by not sticking to one line
+per thing that should use progress) or they try to align stuff left and right.
+
+In the author's humble opinion, the best example of just the right amount of
+information vs screen real-estate is in the Git progress output (when cloning,
+pulling, etc).  It uses one line per thing, and may display both percentage
+complete (in cases where it's known) and even throughput (for network
+transfer).
+
+This library mimics the Git way of showing progress.")
+    (license license:gpl2+)))
+
 (define-public rust-proptest-0.9
   (package
     (name "rust-proptest")
@@ -21948,6 +22252,29 @@ (define-public rust-ring-0.16
     (description "This package provided safe, fast, small crypto using Rust.")
     (license (list license:isc license:openssl))))
 
+(define-public rust-ring-0.14
+  (package
+    (inherit rust-ring-0.16)
+    (name "rust-ring")
+    (version "0.14.6")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (crate-uri "ring" version))
+        (file-name
+         (string-append name "-" version ".tar.gz"))
+        (sha256
+         (base32
+          "0g091akf4dpg9qj05z3gc4nlrs57mjj2bqab98gaqp79wf3c2ss2"))))
+    (arguments
+     `(#:cargo-inputs
+       (("rust-lazy-static" ,rust-lazy-static-1)
+        ("rust-libc" ,rust-libc-0.2)
+        ("rust-spin" ,rust-spin-0.5)
+        ("rust-untrusted" ,rust-untrusted-0.6)
+        ("rust-winapi" ,rust-winapi-0.3)
+        ("rust-cc" ,rust-cc-1))))))
+
 (define-public rust-ring-0.13
   (package/inherit rust-ring-0.16
     (name "rust-ring")
@@ -22118,6 +22445,41 @@ (define-public rust-rpassword-4
 console applications.")
   (license license:asl2.0)))
 
+(define-public rust-rpassword-3
+  (package
+    (inherit rust-rpassword-4)
+    (name "rust-rpassword")
+    (version "3.0.2")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (crate-uri "rpassword" version))
+        (file-name
+         (string-append name "-" version ".tar.gz"))
+        (sha256
+         (base32
+          "0vkifbbs160d7i7wy3kb0vw9mbf3pf470hg8f623rjkzmsyafky3"))))
+    (arguments
+     `(#:cargo-inputs
+       (("rust-kernel32-sys" ,rust-kernel32-sys-0.2)
+        ("rust-libc" ,rust-libc-0.2)
+        ("rust-winapi" ,rust-winapi-0.2))))))
+
+(define-public rust-rpassword-2
+  (package
+    (inherit rust-rpassword-3)
+    (name "rust-rpassword")
+    (version "2.1.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "rpassword" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1v255xqkig5lwnczvm3achydhxx6kf9jcdxdlgzndgpd18bp6x6k"))))))
+
 (define-public rust-rusqlite-0.19
   (package
     (name "rust-rusqlite")
@@ -22217,6 +22579,41 @@ (define-public rust-rust-argon2-0.5
 password hashing function.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-rust-base58-0.0
+  (package
+    (name "rust-rust-base58")
+    (version "0.0.4")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "rust-base58" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "0fa4y2jjjmg1a0cr3gz4z8rkic0hx2vx5nm23za9lwf6rlgvj4xk"))
+       (modules '((guix build utils)))
+       (snippet
+        '(begin
+           ;; Otherwise we get an error: no method named `gen_iter` found
+           ;; for type `rand::prelude::ThreadRng`
+           (substitute* "Cargo.toml"
+             (("rand.*") "rand = \"<0.6\"\n"))
+           #t))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-num" ,rust-num-0.1))
+       #:cargo-development-inputs
+       (("rust-rand" ,rust-rand-0.4))))
+    (home-page "https://github.com/nham/rust-base58")
+    (synopsis
+     "Simple library for converting to and from base-58 strings")
+    (description
+     "Convert to and from base-58 strings with a simple Rust api.
+ Currently the conversion uses the Bitcoin base58 alphabet.")
+    (license (list license:asl2.0 license:expat))))
+
 (define-public rust-rust-hawktracer-0.7
   (package
     (name "rust-rust-hawktracer")
@@ -23085,6 +23482,35 @@ (define-public rust-rustls-0.16
         ("rust-tempfile" ,rust-tempfile-3)
         ("rust-webpki-roots" ,rust-webpki-roots-0.17))))))
 
+(define-public rust-rustls-0.15
+  (package
+    (inherit rust-rustls-0.16)
+    (name "rust-rustls")
+    (version "0.15.2")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (crate-uri "rustls" version))
+        (file-name
+         (string-append name "-" version ".tar.gz"))
+        (sha256
+         (base32
+          "0vh93fhqfbn4ysw4xzkpkpqdz36xixz4mhs1qllgldfq5iay6wgj"))))
+    (arguments
+     `(#:tests? #f ;; 1/111 tests fail (test file not found)
+       #:cargo-inputs
+       (("rust-base64" ,rust-base64-0.10)
+        ("rust-log" ,rust-log-0.4)
+        ("rust-ring" ,rust-ring-0.14)
+        ("rust-sct" ,rust-sct-0.5)
+        ("rust-untrusted" ,rust-untrusted-0.6)
+        ("rust-webpki" ,rust-webpki-0.19))
+       #:cargo-development-inputs
+       (("rust-env-logger" ,rust-env-logger-0.6)
+        ("rust-log" ,rust-log-0.4)
+        ("rust-tempfile" ,rust-tempfile-3)
+        ("rust-webpki-roots" ,rust-webpki-roots-0.16))))))
+
 (define-public rust-rustls-0.12
   (package/inherit rust-rustls-0.16
     (name "rust-rustls")
@@ -23386,6 +23812,46 @@ (define-public rust-same-file-0.1
        #:cargo-development-inputs
        (("rust-rand" ,rust-rand-0.3))))))
 
+(define-public rust-sanakirja-0.10
+  (package
+    (name "rust-sanakirja")
+    (version "0.10.3")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "sanakirja" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1fhn5lb6jn0pimnk0nbf5h4xvp28xdkdh33d57gq1ixy8b2y091y"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:tests? #f  ; tests::test_del_medium_fork fails
+       #:cargo-inputs
+       (("rust-fs2" ,rust-fs2-0.4)
+        ("rust-log" ,rust-log-0.4)
+        ("rust-memmap" ,rust-memmap-0.7)
+        ("rust-rand" ,rust-rand-0.6)
+        ("rust-uuid" ,rust-uuid-0.7))
+       #:cargo-development-inputs
+       (("rust-env-logger" ,rust-env-logger-0.6)
+        ("rust-hex" ,rust-hex-0.3)
+        ("rust-tempdir" ,rust-tempdir-0.3))))
+    (home-page "https://nest.pijul.com/pijul_org/sanakirja")
+    (synopsis "Key-value dictionary, using copy-on-write and B-trees")
+    (description
+     "This package provides a key-value dictionary, using copy-on-write and B
+trees.  It features:
+@itemize
+@item ACID semantics.
+@item B trees with copy-on-write.
+@item Support for referential transparency: databases can be cloned in time
+O(log n) (where n is the size of the database).  This was the original
+motivation for writing this library.
+@end itemize")
+    (license (list license:asl2.0 license:expat))))
+
 (define-public rust-scan-fmt-0.2
   (package
     (name "rust-scan-fmt")
@@ -23760,6 +24226,25 @@ (define-public rust-sct-0.6
     (description "Certificate transparency SCT verification library")
     (license (list license:asl2.0 license:isc license:expat))))
 
+(define-public rust-sct-0.5
+  (package
+    (inherit rust-sct-0.6)
+    (name "rust-sct")
+    (version "0.5.0")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (crate-uri "sct" version))
+        (file-name
+         (string-append name "-" version ".tar.gz"))
+        (sha256
+         (base32
+          "1fb9ym5bwswx01yyggn7v2vfryih4vnqpp4r4ssv3qaqpn7xynig"))))
+    (arguments
+     `(#:cargo-inputs
+       (("rust-ring" ,rust-ring-0.14)
+        ("rust-untrusted" ,rust-untrusted-0.6))))))
+
 (define-public rust-sct-0.3
   (package/inherit rust-sct-0.6
     (name "rust-sct")
@@ -24120,6 +24605,97 @@ (define-public rust-semver-parser-0.7
          (base32
           "18vhypw6zgccnrlm5ps1pwa0khz7ry927iznpr88b87cagr1v2iq"))))))
 
+(define-public rust-sequoia-openpgp-0.9
+  (package
+    (name "rust-sequoia-openpgp")
+    (version "0.9.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "sequoia-openpgp" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "007h2pi7lcph5jf5bxjydm7hjwjai33yk6dic3cxknki22lxlkfw"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-base64" ,rust-base64-0.9)
+        ("rust-buffered-reader" ,rust-buffered-reader-0.9)
+        ("rust-bzip2" ,rust-bzip2-0.3)
+        ("rust-failure" ,rust-failure-0.1)
+        ("rust-flate2" ,rust-flate2-1)
+        ("rust-idna" ,rust-idna-0.1)
+        ("rust-lalrpop" ,rust-lalrpop-0.17)
+        ("rust-lalrpop-util" ,rust-lalrpop-util-0.17)
+        ("rust-lazy-static" ,rust-lazy-static-1)
+        ("rust-memsec" ,rust-memsec-0.5)
+        ("rust-nettle" ,rust-nettle-5)
+        ("rust-quickcheck" ,rust-quickcheck-0.8)
+        ("rust-rand" ,rust-rand-0.6)
+        ("rust-sequoia-rfc2822" ,rust-sequoia-rfc2822-0.9)
+        ("rust-time" ,rust-time-0.1))
+       #:cargo-development-inputs
+       (("rust-rpassword" ,rust-rpassword-3))))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("clang" ,clang)
+       ("nettle" ,nettle)))
+    (home-page "https://sequoia-pgp.org/")
+    (synopsis "OpenPGP data types and associated machinery")
+    (description
+     "This crate aims to provide a complete implementation of OpenPGP as
+defined by RFC 4880 as well as some extensions (e.g., RFC 6637, which
+describes ECC cryptography) for OpenPGP.  This includes support for unbuffered
+message processing.
+
+A few features that the OpenPGP community considers to be deprecated (e.g.,
+version 3 compatibility) have been left out.  We have also updated some
+OpenPGP defaults to avoid foot guns (e.g., we selected modern algorithm
+defaults).  If some functionality is missing, please file a bug report.")
+    (license license:gpl3)))
+
+(define-public rust-sequoia-rfc2822-0.9
+  (package
+    (name "rust-sequoia-rfc2822")
+    (version "0.9.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "sequoia-rfc2822" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1aj34i6862718m162rqfv69fkmvdw063s6ws7hbp42n73gb08p5c"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-failure" ,rust-failure-0.1)
+        ("rust-lalrpop" ,rust-lalrpop-0.17)
+        ("rust-lalrpop-util" ,rust-lalrpop-util-0.17))
+       #:cargo-development-inputs
+       (("rust-lazy-static" ,rust-lazy-static-1)
+        ("rust-quickcheck" ,rust-quickcheck-0.8)
+        ("rust-rand" ,rust-rand-0.6))))
+    (home-page "https://sequoia-pgp.org/")
+    (synopsis "RFC 2822 name-addr parser")
+    (description
+     "Currently, this crate only recognizes the RFC 2822 name-addr and
+addr-spec productions, i.e., things of the form:
+
+Name (Comment) <email@@example.org>
+
+and
+
+email@@example.org
+
+Although the above appear simple to parse, RFC 2822's whitespace and comment
+rules are rather complex.  This crate implements the whole grammar." )
+    (license license:gpl3)))
+
 (define-public rust-serde-1
   (package
     (name "rust-serde")
@@ -24994,7 +25570,7 @@ (define-public rust-sha1-0.2
              (substitute* "Cargo.toml"
                ((", path =.*}") "}"))
              #t)))))
-    (native-inputs
+    (inputs
      `(("openssl" ,openssl-1.0))))) ; for openssl-sys-extras
 
 (define-public rust-sha1-asm-0.4
@@ -25173,6 +25749,27 @@ (define-public rust-shared-library-0.1
      "This package allows easy binding to, and loading of, shared libraries.")
     (license (list license:asl2.0 license:expat))))
 
+(define-public rust-shell-escape-0.1
+  (package
+    (name "rust-shell-escape")
+    (version "0.1.4")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "shell-escape" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1fgs1iyx3b124b7njjmhfn9q5ipmhxrafavh8mxbfl9a9zk162hp"))))
+    (build-system cargo-build-system)
+    (home-page "https://github.com/sfackler/shell-escape")
+    (synopsis
+     "Escape characters that may have a special meaning in a shell")
+    (description
+     "Escape characters that may have a special meaning in a shell.")
+    (license (list license:asl2.0 license:expat))))
+
 (define-public rust-shell-words-0.1
   (package
     (name "rust-shell-words")
@@ -25524,7 +26121,7 @@ (define-public rust-sleef-sys-0.1
      "Rust FFI bindings to the SLEEF Vectorized Math Library.")
     (license (list license:asl2.0 license:expat))))
 
-(define-public rust-slog-2.5
+(define-public rust-slog-2
   (package
     (name "rust-slog")
     (version "2.5.2")
@@ -25551,32 +26148,6 @@ (define-public rust-slog-2.5
             license:expat
             license:asl2.0))))
 
-(define-public rust-slog-2.4
-  (package
-    (name "rust-slog")
-    (version "2.4.1")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (crate-uri "slog" version))
-       (file-name
-        (string-append name "-" version ".tar.gz"))
-       (sha256
-        (base32
-         "13jh74jlckzh5cygkhs0k4r82wnmw8ha2km829xwslhr83n2w6hy"))))
-    (build-system cargo-build-system)
-    (arguments
-     `(#:skip-build? #t
-       #:cargo-inputs
-       (("rust-erased-serde" ,rust-erased-serde-0.3))))
-    (home-page "https://github.com/slog-rs/slog")
-    (synopsis "Structured, extensible, composable logging for Rust")
-    (description
-     "Structured, extensible, composable logging for Rust.")
-    (license (list license:mpl2.0
-                   license:expat
-                   license:asl2.0))))
-
 (define-public rust-smallvec-1
   (package
     (name "rust-smallvec")
@@ -25654,6 +26225,33 @@ (define-public rust-socket2-0.3
     (license (list license:asl2.0
                    license:expat))))
 
+(define-public rust-socks-0.3
+  (package
+    (name "rust-socks")
+    (version "0.3.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "socks" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1hnbw4c4j7dn9n3bd1v7ddkdzlxlzkfw3z29da1nxlj6jgx4r9p6"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:tests? #f  ; Tests require network connection.
+       #:cargo-inputs
+       (("rust-byteorder" ,rust-byteorder-1)
+        ("rust-libc" ,rust-libc-0.2)
+        ("rust-winapi" ,rust-winapi-0.2)
+        ("rust-ws2-32-sys" ,rust-ws2-32-sys-0.2))))
+    (home-page "https://github.com/sfackler/rust-socks")
+    (synopsis "Rust SOCKS proxy clients")
+    (description
+     "You can write SOCKS proxy clients with this crate.")
+    (license (list license:asl2.0 license:expat))))
+
 (define-public rust-sourcefile-0.1
   (package
     (name "rust-sourcefile")
@@ -28136,6 +28734,34 @@ (define-public rust-threadpool-1.7
     (license (list license:asl2.0
                    license:expat))))
 
+(define-public rust-thrussh-libsodium-0.1
+  (package
+    (name "rust-thrussh-libsodium")
+    (version "0.1.4")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "thrussh-libsodium" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "0fjssjiwnmbxjvajk37l7k0fcw1ys97j7n8bpn3q3bbnz2qfrphv"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-libc" ,rust-libc-0.2)
+        ("rust-pkg-config" ,rust-pkg-config-0.3))))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("libsodium" ,libsodium)))
+    (home-page "https://nest.pijul.com/pijul_org/thrussh")
+    (synopsis "Straightforward bindings to libsodium")
+    (description
+     "You can bind to libsodium from Rust with this crate.")
+    (license (list license:asl2.0 license:expat))))
+
 (define-public rust-time-0.2
   (package
     (name "rust-time")
@@ -28789,6 +29415,50 @@ (define-public rust-tokio-named-pipes-0.1
 Tokio.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-tokio-net-0.2
+  (package
+    (name "rust-tokio-net")
+    (version "0.2.0-alpha.4")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "tokio-net" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "15vm0bndn6zcpkp1yb6v736rbhqgim5skc76rz299xd3y0pr249a"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-bytes" ,rust-bytes-0.4)
+        ("rust-crossbeam-queue" ,rust-crossbeam-queue-0.1)
+        ("rust-crossbeam-utils" ,rust-crossbeam-utils-0.6)
+        ("rust-futures-core-preview" ,rust-futures-core-preview-0.3)
+        ("rust-futures-sink-preview" ,rust-futures-sink-preview-0.3)
+        ("rust-futures-util-preview" ,rust-futures-util-preview-0.3)
+        ("rust-iovec" ,rust-iovec-0.1)
+        ("rust-lazy-static" ,rust-lazy-static-1)
+        ("rust-libc" ,rust-libc-0.2)
+        ("rust-mio" ,rust-mio-0.6)
+        ("rust-mio-named-pipes" ,rust-mio-named-pipes-0.1)
+        ("rust-mio-uds" ,rust-mio-uds-0.6)
+        ("rust-num-cpus" ,rust-num-cpus-1)
+        ("rust-parking-lot" ,rust-parking-lot-0.8)
+        ("rust-signal-hook-registry" ,rust-signal-hook-registry-1)
+        ("rust-slab" ,rust-slab-0.4)
+        ("rust-tokio-codec" ,rust-tokio-codec-0.1)
+        ("rust-tokio-executor" ,rust-tokio-executor-0.1)
+        ("rust-tokio-io" ,rust-tokio-io-0.1)
+        ("rust-tokio-sync" ,rust-tokio-sync-0.1)
+        ("rust-tracing" ,rust-tracing-0.1)
+        ("rust-winapi" ,rust-winapi-0.3))))
+    (home-page "https://tokio.rs")
+    (synopsis "Event loop that drives Tokio I/O resources")
+    (description
+     "This package provides the event loop that drives Tokio I/O resources.")
+    (license license:expat)))
+
 (define-public rust-tokio-openssl-0.4
   (package
     (name "rust-tokio-openssl")
@@ -28983,6 +29653,33 @@ (define-public rust-tokio-rustls-0.12
         ("rust-webpki-roots" ,rust-webpki-roots-0.18))))
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-tokio-rustls-0.9
+  (package
+    (inherit rust-tokio-rustls-0.12)
+    (name "rust-tokio-rustls")
+    (version "0.9.4")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (crate-uri "tokio-rustls" version))
+        (file-name
+         (string-append name "-" version ".tar.gz"))
+        (sha256
+         (base32
+          "1jd63sl177sxacnksaxhazzmamwds98xk3niprh2qib75a1rk8cm"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-bytes" ,rust-bytes-0.4)
+        ("rust-futures" ,rust-futures-0.1)
+        ("rust-iovec" ,rust-iovec-0.1)
+        ("rust-rustls" ,rust-rustls-0.15)
+        ("rust-tokio-io" ,rust-tokio-io-0.1)
+        ("rust-webpki" ,rust-webpki-0.19))
+       #:cargo-development-inputs
+       (("rust-lazy-static" ,rust-lazy-static-1)
+        ("rust-tokio" ,rust-tokio-0.1))))))
+
 (define-public rust-tokio-signal-0.2
   (package
     (name "rust-tokio-signal")
@@ -29672,6 +30369,123 @@ (define-public rust-tracing-futures-0.2
 @code{futures} with @code{tracing}.")
     (license license:expat)))
 
+(define-public rust-tracing-fmt-0.1
+  (package
+    (name "rust-tracing-fmt")
+    (version "0.1.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "tracing-fmt" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "0wagcrd6w8d3k7zdvg6sy2bwfh8w87i6ndia69p54fc7p3z4f1c8"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-tracing-subscriber" ,rust-tracing-subscriber-0.1))
+       #:cargo-development-inputs
+       (("rust-tracing" ,rust-tracing-0.1))))
+    (home-page "https://tokio.rs")
+    (synopsis "Tracing subscriber that formats and logs trace data")
+    (description
+     "This package provides a tracing subscriber that formats and logs trace
+data.  Moved to the tracing-subscriber crate.")
+    (license license:expat)))
+
+(define-public rust-tracing-log-0.1
+  (package
+    (name "rust-tracing-log")
+    (version "0.1.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "tracing-log" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1fdr0az98q9m5kiybvdvsb2m9mg86fdidgb5czzq2d71g1qqq3sy"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-env-logger" ,rust-env-logger-0.6)
+        ("rust-lazy-static" ,rust-lazy-static-1)
+        ("rust-log" ,rust-log-0.4)
+        ("rust-tracing-core" ,rust-tracing-core-0.1))
+       #:cargo-development-inputs
+       (("rust-tracing" ,rust-tracing-0.1))))
+    (home-page "https://tokio.rs")
+    (synopsis
+     "Provides compatibility between tracing the log crates")
+    (description
+     "Tracing is a framework for instrumenting Rust programs with
+context-aware, structured, event-based diagnostic information.  This crate
+provides compatibility layers for using tracing alongside the logging facade
+provided by the log crate.
+
+This crate provides:
+
+@itemize
+@item @code{AsTrace} and @code{AsLog} traits for converting between tracing
+and log types.
+@item @code{LogTracer}, a @code{log::Log} implementation that consumes
+@code{log::Records} and outputs them as @code{tracing::Events}.
+@item An @code{env_logger} module, with helpers for using the env_logger crate
+with tracing (optional, enabled by the env-logger feature).
+@end itemize")
+    (license license:expat)))
+
+(define-public rust-tracing-subscriber-0.1
+  (package
+    (name "rust-tracing-subscriber")
+    (version "0.1.6")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "tracing-subscriber" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "0i9fhlyz8mn2znpgmi5bv9y24pwpkkgfxs0rwcf6dl6djmjs2b0r"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:tests? #f      ; Some test files missing.
+       #:cargo-inputs
+       (("rust-ansi-term" ,rust-ansi-term-0.11)
+        ("rust-chrono" ,rust-chrono-0.4)
+        ("rust-lazy-static" ,rust-lazy-static-1)
+        ("rust-matchers" ,rust-matchers-0.0)
+        ("rust-owning-ref" ,rust-owning-ref-0.4)
+        ("rust-parking-lot" ,rust-parking-lot-0.9)
+        ("rust-regex" ,rust-regex-1)
+        ("rust-smallvec" ,rust-smallvec-0.6)
+        ("rust-tracing-core" ,rust-tracing-core-0.1)
+        ("rust-tracing-log" ,rust-tracing-log-0.1))
+       #:cargo-development-inputs
+       (("rust-criterion" ,rust-criterion-0.3)
+        ("rust-log" ,rust-log-0.4)
+        ("rust-tracing" ,rust-tracing-0.1)
+        ("rust-tracing-log" ,rust-tracing-log-0.1))))
+    (home-page "https://tokio.rs")
+    (synopsis "Implement and compose tracing subscribers")
+    (description
+     "Utilities for implementing and composing tracing subscribers.
+
+Tracing is a framework for instrumenting Rust programs to collect
+scoped, structured, and async-aware diagnostics.  The Subscriber trait
+represents the functionality necessary to collect this trace
+data.  This crate contains tools for composing subscribers out of
+smaller units of behaviour, and batteries-included implementations of
+common subscriber functionality.
+
+Tracing-subscriber is intended for use by both Subscriber authors and
+application authors using tracing to instrument their applications.")
+    (license license:expat)))
+
 (define-public rust-traitobject-0.1
   (package
     (name "rust-traitobject")
@@ -29850,6 +30664,48 @@ (define-public rust-trust-dns-proto-0.19
 foundational DNS protocol library for all Trust-DNS projects.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-trust-dns-proto-0.7
+  (package
+    (inherit rust-trust-dns-proto-0.19)
+    (name "rust-trust-dns-proto")
+    (version "0.7.4")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (crate-uri "trust-dns-proto" version))
+        (file-name
+         (string-append name "-" version ".tar.gz"))
+        (sha256
+         (base32
+          "0099dm57nnizx4apik9sh3mnvr7rp9mivc903v8xss13dkgynnam"))))
+    (arguments
+     `(#:cargo-inputs
+       (("rust-byteorder" ,rust-byteorder-1)
+        ("rust-data-encoding" ,rust-data-encoding-2)
+        ("rust-enum-as-inner" ,rust-enum-as-inner-0.2)
+        ("rust-failure" ,rust-failure-0.1)
+        ("rust-futures" ,rust-futures-0.1)
+        ("rust-idna" ,rust-idna-0.1)
+        ("rust-lazy-static" ,rust-lazy-static-1)
+        ("rust-log" ,rust-log-0.4)
+        ("rust-openssl" ,rust-openssl-0.10)
+        ("rust-rand" ,rust-rand-0.6)
+        ("rust-ring" ,rust-ring-0.14)
+        ("rust-serde" ,rust-serde-1)
+        ("rust-smallvec" ,rust-smallvec-0.6)
+        ("rust-socket2" ,rust-socket2-0.3)
+        ("rust-tokio-executor" ,rust-tokio-executor-0.1)
+        ("rust-tokio-io" ,rust-tokio-io-0.1)
+        ("rust-tokio-reactor" ,rust-tokio-reactor-0.1)
+        ("rust-tokio-tcp" ,rust-tokio-tcp-0.1)
+        ("rust-tokio-timer" ,rust-tokio-timer-0.2)
+        ("rust-tokio-udp" ,rust-tokio-udp-0.1)
+        ("rust-untrusted" ,rust-untrusted-0.6)
+        ("rust-url" ,rust-url-1))
+       #:cargo-development-inputs
+       (("rust-env-logger" ,rust-env-logger-0.6)
+        ("rust-tokio" ,rust-tokio-0.1))))))
+
 (define-public rust-trust-dns-resolver-0.19
   (package
     (name "rust-trust-dns-resolver")
@@ -29929,6 +30785,39 @@ (define-public rust-trust-dns-rustls-0.19
 extension for the Trust-DNS client to use rustls for TLS.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-trust-dns-rustls-0.6
+  (package
+    (inherit rust-trust-dns-rustls-0.19)
+    (name "rust-trust-dns-rustls")
+    (version "0.6.4")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "trust-dns-rustls" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "0vbh2y7w2s5gcw33fn4hb5f927kgjm6603vw63slg9riikmsiq43"))))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("openssl" ,openssl)))
+    (arguments
+     `(#:cargo-test-flags
+       '("--release" "--" "--skip=tests::test_tls_client_stream_ipv4")
+       #:cargo-inputs
+       (("rust-futures" ,rust-futures-0.1)
+        ("rust-log" ,rust-log-0.4)
+        ("rust-rustls" ,rust-rustls-0.15)
+        ("rust-tokio-rustls" ,rust-tokio-rustls-0.9)
+        ("rust-tokio-tcp" ,rust-tokio-tcp-0.1)
+        ("rust-trust-dns-proto" ,rust-trust-dns-proto-0.7)
+        ("rust-webpki" ,rust-webpki-0.19))
+       #:cargo-development-inputs
+       (("rust-openssl" ,rust-openssl-0.10)
+        ("rust-tokio" ,rust-tokio-0.1))))))
+
 (define-public rust-try-from-0.3
   (package
     (name "rust-try-from")
@@ -30880,7 +31769,7 @@ (define-public rust-uuid-0.8
         ("rust-md5" ,rust-md5-0.6)
         ("rust-rand" ,rust-rand-0.7)
         ("rust-serde" ,rust-serde-1)
-        ("rust-slog" ,rust-slog-2.5))))
+        ("rust-slog" ,rust-slog-2))))
     (home-page "https://github.com/uuid-rs/uuid")
     (synopsis "Library to generate and parse UUIDs")
     (description
@@ -30909,7 +31798,7 @@ (define-public rust-uuid-0.7
         ("rust-rand" ,rust-rand-0.6)
         ("rust-serde" ,rust-serde-1)
         ("rust-sha1" ,rust-sha1-0.6)
-        ("rust-slog" ,rust-slog-2.4)
+        ("rust-slog" ,rust-slog-2)
         ("rust-winapi" ,rust-winapi-0.3))
        #:cargo-development-inputs
        (("rust-bincode" ,rust-bincode-1)
@@ -31879,6 +32768,28 @@ (define-public rust-webpki-0.21
 Verification.")
     (license license:isc)))
 
+(define-public rust-webpki-0.19
+  (package
+    (inherit rust-webpki-0.21)
+    (name "rust-webpki")
+    (version "0.19.1")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (crate-uri "webpki" version))
+        (file-name
+         (string-append name "-" version ".tar.gz"))
+        (sha256
+         (base32
+          "10nhyxlqsa4caxlxrijm5h79rdg6ld8hqy78ldjnnfhaj3biqzjg"))))
+    (arguments
+     `(#:tests? #f  ; tests fail to build "missing file tests/ed25519/ee.der"
+       #:cargo-inputs
+       (("rust-ring" ,rust-ring-0.14)
+        ("rust-untrusted" ,rust-untrusted-0.6))
+       #:cargo-development-inputs
+       (("rust-base64" ,rust-base64-0.9))))))
+
 (define-public rust-webpki-0.18
   (package/inherit rust-webpki-0.21
     (name "rust-webpki")
@@ -31960,6 +32871,25 @@ (define-public rust-webpki-roots-0.17
       (sha256
        (base32 "12vi8dh0yik0h4f0b9dnlw5i3gxyky7iblbksh6zcq4xvlvswqm2"))))))
 
+(define-public rust-webpki-roots-0.16
+  (package
+    (inherit rust-webpki-roots-0.17)
+    (name "rust-webpki-roots")
+    (version "0.16.0")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (crate-uri "webpki-roots" version))
+        (file-name
+         (string-append name "-" version ".tar.gz"))
+        (sha256
+         (base32
+          "03ny02mwqdgd2ff23k03kbwr2rrcaymxhp7jcjjikfh340hs83y1"))))
+    (arguments
+     `(#:cargo-inputs
+       (("rust-untrusted" ,rust-untrusted-0.6)
+        ("rust-webpki" ,rust-webpki-0.19))))))
+
 (define-public rust-webpki-roots-0.14
   (package/inherit rust-webpki-roots-0.18
     (name "rust-webpki-roots")
@@ -32391,9 +33321,8 @@ (define-public rust-ws2-32-sys-0.2
     (arguments
      `(#:skip-build? #t
        #:cargo-inputs
-       (("rust-winapi" ,rust-winapi-0.2))
-       #:cargo-development-inputs
-       (("rust-winapi-build" ,rust-winapi-build-0.1))))
+       (("rust-winapi" ,rust-winapi-0.2)
+        ("rust-winapi-build" ,rust-winapi-build-0.1))))
     (home-page "https://github.com/retep998/winapi-rs")
     (synopsis "Function definitions for the Windows API library ws2_32")
     (description
diff --git a/gnu/packages/cups.scm b/gnu/packages/cups.scm
index cdfb9643c0..bfe24027fb 100644
--- a/gnu/packages/cups.scm
+++ b/gnu/packages/cups.scm
@@ -744,10 +744,10 @@ (define-public foo2zjs
     (license (list license:expat        ; icc2ps/*.[ch]
                    license:gpl2+))))    ; everything else
 
-(define-public escpr
+(define-public epson-inkjet-printer-escpr
   (package
-    (name "escpr")
-    (version "1.7.7")
+    (name "epson-inkjet-printer-escpr")
+    (version "1.7.8")
     ;; XXX: This currently works.  But it will break as soon as a newer
     ;; version is available since the URLs for older versions are not
     ;; preserved.  An alternative source will be added as soon as
@@ -755,15 +755,19 @@ (define-public escpr
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://download3.ebz.epson.net/dsc/f/03/00/10/49/18/"
-                           "f3016be6120a7271a6d9cb64872f817bce1920b8/"
-                           "epson-inkjet-printer-escpr-1.7.7-1lsb3.2.tar.gz"))
+       (uri (string-append "https://download3.ebz.epson.net/dsc/f/03/00/12/04/32/"
+                           "1a455ef8618def65700ca4e446311c2fb43cd839/"
+                           "epson-inkjet-printer-escpr-1.7.8-1lsb3.2.tar.gz"))
        (sha256
-        (base32 "0khdf2a9iwh9aplj2gzyzl53yyfnfv0kszk3p018jnirl5l475ld"))))
+        (base32 "1pygg2bd2gh27dc65h3dzwrpvi6bq5c87wl0ldchqlc2b3blsx6p"))))
     (build-system gnu-build-system)
     (arguments
-     `(#:configure-flags
-       `(,(string-append "--prefix="
+     `(#:modules
+       ((srfi srfi-26)
+        ,@%gnu-build-system-modules)
+       #:configure-flags
+       `("--disable-static"
+         ,(string-append "--prefix="
                          (assoc-ref %outputs "out"))
          ,(string-append "--with-cupsfilterdir="
                          (assoc-ref %outputs "out") "/lib/cups/filter")
@@ -781,7 +785,13 @@ (define-public escpr
                 (string-append match "aclocal"))
                (("^(AUTOMAKE=).*" _ match)
                 (string-append match "automake")))
-             #t)))))
+             #t))
+         (add-after 'install 'compress-PPDs
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out")))
+               (with-directory-excursion out
+                 (for-each (cut invoke "gzip" "-9" <>)
+                           (find-files "share/cups" "\\.ppd$")))))))))
     (native-inputs
      `(("autoconf" ,autoconf)
        ("automake" ,automake)))
@@ -793,9 +803,12 @@ (define-public escpr
 System} that offers high-quality printing with Seiko@tie{}Epson color ink jet
 printers.  It can be used only with printers that support the Epson@tie{}ESC/P-R
 language.")
-    (home-page "http://download.ebz.epson.net/dsc/search/01/search")
+    (home-page "http://download.ebz.epson.net/dsc/search/01/search/?OSC=LX")
     (license license:gpl2+)))
 
+(define-public escpr
+  (deprecated-package "escpr" epson-inkjet-printer-escpr))
+
 (define-public splix
   ;; Last released in 2009 <https://sourceforge.net/projects/splix/files/>.
   ;; Last SVN commit was 2013 <https://svn.code.sf.net/p/splix/code/splix/>.
diff --git a/gnu/packages/dictionaries.scm b/gnu/packages/dictionaries.scm
index 4e3c1e8803..78bb1811f9 100644
--- a/gnu/packages/dictionaries.scm
+++ b/gnu/packages/dictionaries.scm
@@ -242,7 +242,7 @@ (define-public translate-shell
       (origin
         (method git-fetch)
         (uri (git-reference
-               (url"https://github.com/soimort/translate-shell.git")
+               (url"https://github.com/soimort/translate-shell")
                (commit (string-append "v" version))))
         (file-name (git-file-name name version))
         (sha256
diff --git a/gnu/packages/disk.scm b/gnu/packages/disk.scm
index 9167ccb41a..29f43a2d5f 100644
--- a/gnu/packages/disk.scm
+++ b/gnu/packages/disk.scm
@@ -1052,7 +1052,7 @@ (define-public memkind
     (source (origin
               (method git-fetch)
               (uri (git-reference
-                    (url "https://github.com/memkind/memkind.git")
+                    (url "https://github.com/memkind/memkind")
                     (commit (string-append "v" version))))
               (file-name (git-file-name name version))
               (sha256
diff --git a/gnu/packages/django.scm b/gnu/packages/django.scm
index 2dc99adac8..aa4411c5a2 100644
--- a/gnu/packages/django.scm
+++ b/gnu/packages/django.scm
@@ -862,14 +862,13 @@ (define-public python-django-rq
 (define-public python-django-q
   (package
     (name "python-django-q")
-    (version "1.3.3")
+    (version "1.3.4")
     (source
       (origin
         (method url-fetch)
         (uri (pypi-uri "django-q" version))
         (sha256
-         (base32
-          "1fs29767940akbsn3vdzw2rqnn9v77b0b55bi7fvydny1rk7fw6y"))))
+         (base32 "03z1pf6wlf47i7afr79a8fiiidfk1vq19yaqnv0m4qdny7f58gaj"))))
     (build-system python-build-system)
     ;; FIXME: Tests require disque, Redis, MongoDB, Docker.
     (arguments '(#:tests? #f))
diff --git a/gnu/packages/djvu.scm b/gnu/packages/djvu.scm
index 6b428528b1..90db1a2d42 100644
--- a/gnu/packages/djvu.scm
+++ b/gnu/packages/djvu.scm
@@ -27,12 +27,17 @@ (define-module (gnu packages djvu)
   #:use-module (guix git-download)
   #:use-module (guix build-system gnu)
   #:use-module (gnu packages autotools)
+  #:use-module (gnu packages base)
   #:use-module (gnu packages check)
+  #:use-module (gnu packages compression)
+  #:use-module (gnu packages gawk)
   #:use-module (gnu packages gettext)
+  #:use-module (gnu packages ghostscript)
   #:use-module (gnu packages glib)
   #:use-module (gnu packages image)
   #:use-module (gnu packages imagemagick)
   #:use-module (gnu packages linux)
+  #:use-module (gnu packages ncurses)
   #:use-module (gnu packages pdf)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages python)
@@ -51,6 +56,9 @@ (define-public djvulibre
                (base32
                 "0psh3zl9dj4n4r3lx25390nx34xz0bg0ql48zdskhq354ljni5p6"))))
     (build-system gnu-build-system)
+    (inputs
+     `(("libjpeg-turbo" ,libjpeg-turbo)
+       ("libtiff" ,libtiff)))
     (arguments
      `(#:phases (modify-phases %standard-phases
                   (add-after 'unpack 'reproducible
@@ -160,3 +168,107 @@ (define-public pdf2djvu
 @end itemize\n")
     (home-page "https://jwilk.net/software/pdf2djvu")
     (license license:gpl2)))
+
+(define-public djvu2pdf
+  (package
+    (name "djvu2pdf")
+    (version "0.9.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://0x2a.at/site/projects/djvu2pdf/djvu2pdf-"
+                           version ".tar.gz"))
+       (sha256
+        (base32 "0v2ax30m7j1yi4m02nzn9rc4sn4vzqh5vywdh96r64j4pwvn5s5g"))))
+    (build-system gnu-build-system)
+    (inputs
+     `(("djvulibre" ,djvulibre)
+       ("gawk" ,gawk)
+       ("ghostscript" ,ghostscript)
+       ("grep" ,grep)
+       ("ncurses" ,ncurses)
+       ("which" ,which)))
+    (arguments
+     `(#:tests? #f ; No test suite
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'fix-paths
+           (lambda* (#:key inputs #:allow-other-keys)
+             (let ((djvulibre (assoc-ref inputs "djvulibre"))
+                   (gawk (assoc-ref inputs "gawk"))
+                   (ghostscript (assoc-ref inputs "ghostscript"))
+                   (grep (assoc-ref inputs "grep"))
+                   (ncurses (assoc-ref inputs "ncurses"))
+                   (which (assoc-ref inputs "which")))
+               (substitute* "djvu2pdf"
+                 (("awk")
+                  (string-append gawk "/bin/awk"))
+                 (("ddjvu")
+                  (string-append djvulibre "/bin/ddjvu"))
+                 (("djvudump")
+                  (string-append djvulibre "/bin/djvudump"))
+                 (("grep")
+                  (string-append grep "/bin/grep"))
+                 (("gs")
+                  (string-append ghostscript "/bin/gs"))
+                 (("tput ")
+                  (string-append ncurses "/bin/tput "))
+                 (("which")
+                  (string-append which "/bin/which"))))
+             #t))
+         (delete 'configure)
+         (delete 'build)
+         (replace 'install
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((out (assoc-ref %outputs "out")))
+               (install-file "djvu2pdf"
+                             (string-append out "/bin"))
+               (install-file "djvu2pdf.1.gz"
+                             (string-append out "/share/man/man1"))
+               #t))))))
+    (synopsis "DjVu to PDF converter")
+    (description "This is a small tool to convert DjVu files to PDF files.")
+    (home-page "https://0x2a.at/site/projects/djvu2pdf/")
+    (license license:gpl2+)))
+
+(define-public minidjvu
+  (package
+    (name "minidjvu")
+    (version "0.8")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "mirror://sourceforge/minidjvu/minidjvu/"
+                           version "/minidjvu-" version ".tar.gz"))
+       (sha256
+        (base32 "0jmpvy4g68k6xgplj9zsl6brg6vi81mx3nx2x9hfbr1f4zh95j79"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("gettext" ,gettext-minimal)))
+    (inputs
+     `(("libjpeg-turbo" ,libjpeg-turbo)
+       ("libtiff" ,libtiff)
+       ("zlib" ,zlib)))
+    (arguments
+     '(#:configure-flags '("--disable-static")
+       #:parallel-build? #f
+       #:tests? #f ; No test suite
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'fix-paths
+           (lambda _
+             (substitute* "Makefile.in"
+               (("/usr/bin/gzip")
+                "gzip"))
+             #t))
+         (add-before 'install 'make-lib-directory
+           (lambda* (#:key outputs #:allow-other-keys)
+             (mkdir-p (string-append (assoc-ref outputs "out") "/lib"))
+             #t)))))
+    (synopsis "Black and white DjVu encoder")
+    (description
+     "@code{minidjvu} is a multipage DjVu encoder and single page
+encoder/decoder.  It doesn't support colors or grayscales, just black
+and white.")
+    (home-page "https://sourceforge.net/projects/minidjvu/")
+    (license license:gpl2)))
diff --git a/gnu/packages/docker.scm b/gnu/packages/docker.scm
index c08f6eb3c6..950986045e 100644
--- a/gnu/packages/docker.scm
+++ b/gnu/packages/docker.scm
@@ -70,11 +70,11 @@ (define-public python-docker
     (inputs
      `(("python-requests" ,python-requests-2.20)
        ("python-six" ,python-six)
-       ("python-urllib3" ,python-urllib3-1.24)
-       ("python-websocket-client" ,python-websocket-client)))
+       ("python-urllib3" ,python-urllib3-1.24)))
     (propagated-inputs
      `(("python-docker-pycreds" ,python-docker-pycreds)
-       ("python-paramiko" ,python-paramiko))) ; adds SSH support
+       ("python-paramiko" ,python-paramiko)    ;adds SSH support
+       ("python-websocket-client" ,python-websocket-client)))
     (home-page "https://github.com/docker/docker-py/")
     (synopsis "Python client for Docker")
     (description "Docker-Py is a Python client for the Docker container
diff --git a/gnu/packages/documentation.scm b/gnu/packages/documentation.scm
index 6532bb4704..0fca0b11eb 100644
--- a/gnu/packages/documentation.scm
+++ b/gnu/packages/documentation.scm
@@ -63,7 +63,7 @@ (define-public latex2html
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/latex2html/latex2html.git")
+         (url "https://github.com/latex2html/latex2html")
          (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
diff --git a/gnu/packages/emacs-xyz.scm b/gnu/packages/emacs-xyz.scm
index 95898b9cad..885487bf17 100644
--- a/gnu/packages/emacs-xyz.scm
+++ b/gnu/packages/emacs-xyz.scm
@@ -2238,7 +2238,7 @@ (define-public emacs-chronometrist
      (origin
        (method git-fetch)
        (uri (git-reference
-             (url "https://github.com/contrapunctus-1/chronometrist.git")
+             (url "https://github.com/contrapunctus-1/chronometrist")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -3048,6 +3048,32 @@ (define-public emacs-undo-tree
 allows easily move between them.")
     (license license:gpl3+)))
 
+(define-public emacs-undo-fu
+  ;; There are no tagged releases upstream on gitlab, instead we are using
+  ;; the most recent commit.
+  (let ((commit "c0806c1903c5a0e4c69b6615cdc3366470a9b8ca")
+        (revision "0"))
+    (package
+      (name "emacs-undo-fu")
+      (version (git-version "0.4" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://gitlab.com/ideasman42/emacs-undo-fu")
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32 "1n594aakmcgyl7qbda86v4wsx8clm62ypiv3h559xz3x72h7mr3j"))))
+      (build-system emacs-build-system)
+      (home-page "https://gitlab.com/ideasman42/emacs-undo-fu")
+      (synopsis "Simple, stable linear undo with redo for Emacs")
+      (description
+       "This is a light weight wrapper for Emacs built-in undo system,
+adding convenient undo/redo without losing access to the full undo history,
+allowing you to visit all previous states of the document if you need.")
+      (license license:gpl3+))))
+
 (define-public emacs-s
   (package
     (name "emacs-s")
@@ -3920,8 +3946,8 @@ (define-public emacs-litable
       (license license:gpl3+))))
 
 (define-public emacs-literate-calc-mode
-  (let ((commit "e855bd718fa7d0d70b8f43264e10664369dd3a37")
-        (revision "0"))
+  (let ((commit "a50e897a816cb5580ad6ec867eeaae212e0e4798")
+        (revision "1"))
     (package
       (name "emacs-literate-calc-mode")
       (version (git-version "0.1" revision commit))
@@ -3933,7 +3959,7 @@ (define-public emacs-literate-calc-mode
                (commit commit)))
          (file-name (git-file-name name version))
          (sha256
-          (base32 "0mk4cig8g8ibz97mvyan79fkypyanh7r0h7h20ibafq09nb0mw01"))))
+          (base32 "0z6y5f1rj28lbr30m6g4a9l6ahs66whi8861g4cx9xzhs84nwv5g"))))
       (build-system emacs-build-system)
       (propagated-inputs
        `(("emacs-s" ,emacs-s)))
@@ -4564,7 +4590,7 @@ (define-public emacs-flycheck-ledger
      (origin
        (method git-fetch)
        (uri (git-reference
-             (url "https://github.com/purcell/flycheck-ledger.git")
+             (url "https://github.com/purcell/flycheck-ledger")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
@@ -7044,29 +7070,33 @@ (define-public emacs-realgud
     (license license:gpl3+)))
 
 (define-public emacs-request
-  (package
-    (name "emacs-request")
-    (version "0.3.2")
-    (source (origin
-              (method git-fetch)
-              (uri (git-reference
-                    (url "https://github.com/tkf/emacs-request")
-                    (commit (string-append "v" version))))
-              (file-name (git-file-name name version))
-              (sha256
-               (base32
-                "1djywhvvb6kwdj0nd3axjvb7k2g06dzkc6hsf29w9rsk96vr8ryl"))))
-    (build-system emacs-build-system)
-    (arguments
-     `(#:tests? #f)) ; requires network access.
-    (propagated-inputs
-     `(("emacs-deferred" ,emacs-deferred)))
-    (home-page "https://github.com/tkf/emacs-request")
-    (synopsis "Package for speaking HTTP in Emacs Lisp")
-    (description "This package provides a HTTP request library with multiple
+  ;; We prefer a more recent commit that has support for auth-source,
+  ;; which makes authentication more convenient for users and maintainers.
+  (let ((commit "d02d1347ffdf138cffd380cbeac62ac8732036ef")
+        (revision "0"))
+    (package
+      (name "emacs-request")
+      (version (git-version "0.3.2" revision commit))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/tkf/emacs-request")
+                      (commit commit)))
+                (file-name (git-file-name name version))
+                (sha256
+                 (base32
+                  "1rkpakzish2d470ca15yq3k0m1j7a2lrkvvddcyvc2rx0sncsdjs"))))
+      (build-system emacs-build-system)
+      (arguments
+       `(#:tests? #f))                  ; requires network access.
+      (propagated-inputs
+       `(("emacs-deferred" ,emacs-deferred)))
+      (home-page "https://github.com/tkf/emacs-request")
+      (synopsis "Package for speaking HTTP in Emacs Lisp")
+      (description "This package provides a HTTP request library with multiple
 backends.  It supports url.el which is shipped with Emacs and the curl command
 line program.")
-    (license license:gpl3+)))
+      (license license:gpl3+))))
 
 (define-public emacs-rudel
   (package
@@ -7122,6 +7152,35 @@ (define-public emacs-hydra
 automatically.")
     (license license:gpl3+)))
 
+(define-public emacs-pretty-hydra
+  (package
+    (name "emacs-pretty-hydra")
+    (version "0.2.2")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/jerrypnz/major-mode-hydra.el")
+             (commit version)))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32
+         "08a15knkdq35pzjq82imff016fbfdib5q4glg2xmdy2b5fnk7jqa"))))
+    (build-system emacs-build-system)
+    (propagated-inputs
+     `(("emacs-dash" ,emacs-dash)
+       ("emacs-hydra" ,emacs-hydra)
+       ("emacs-s" ,emacs-s)))
+    (arguments
+     `(#:exclude (cons "^major-mode-hydra\\.el" %default-exclude)))
+    (home-page "https://github.com/jerrypnz/major-mode-hydra.el")
+    (synopsis "Major mode keybindings managed by Hydra")
+    (description
+     "This package offers an hydra-based method of managing major
+mode-specific key bindings.  It is intended for use as a library only; see
+package @code{emacs-major-mode-hydra} for a user-friendly interface.")
+    (license license:gpl3+)))
+
 (define-public emacs-interleave
   (package
     (name "emacs-interleave")
@@ -7144,6 +7203,20 @@ (define-public emacs-interleave
 by side to an Org buffer with your notes relevant to the current page.")
     (license license:gpl3+)))
 
+(define-public emacs-major-mode-hydra
+  (package
+    (inherit emacs-pretty-hydra)
+    (name "emacs-major-mode-hydra")
+    (propagated-inputs
+     `(("emacs-dash" ,emacs-dash)
+       ("emacs-pretty-hydra" ,emacs-pretty-hydra)))
+    (arguments
+     `(#:exclude (cons "^pretty-hydra\\.el" %default-exclude)))
+    (synopsis "Create nice-looking hydras")
+    (description
+     "This package provides the macro @code{pretty-hydra-define} to define
+hydras with one column per group of heads.")))
+
 (define-public emacs-ivy
   (package
     (name "emacs-ivy")
@@ -7662,7 +7735,7 @@ (define-public emacs-counsel-notmuch
        (origin
          (method git-fetch)
          (uri (git-reference
-               (url "https://github.com/fuxialexander/counsel-notmuch.git")
+               (url "https://github.com/fuxialexander/counsel-notmuch")
                (commit commit)))
          (file-name (git-file-name name version))
          (sha256
@@ -12239,14 +12312,14 @@ (define-public emacs-json-mode
 (define-public emacs-jsonrpc
   (package
     (name "emacs-jsonrpc")
-    (version "1.0.12")
+    (version "1.0.14")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "https://elpa.gnu.org/packages/"
                            "jsonrpc-" version ".el"))
        (sha256
-        (base32 "0cqp05awikbrn88ifld3vwnv6cxgmr83wlnsvxw8bqb96djz70ad"))))
+        (base32 "069l0sqkambam4ikj9id36kdw1jdjna8v586d51m64hiz96rmvm6"))))
     (build-system emacs-build-system)
     (home-page "http://elpa.gnu.org/packages/jsonrpc.html")
     (synopsis "JSON-RPC library")
@@ -12544,7 +12617,7 @@ (define-public emacs-openwith
 (define-public emacs-org-edit-latex
   (package
     (name "emacs-org-edit-latex")
-    (version "0.8.0")
+    (version "0.8.3")
     (source
      (origin
        (method git-fetch)
@@ -12553,18 +12626,16 @@ (define-public emacs-org-edit-latex
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "0zcllyhx9n9vcr5w87h0hfz25v52lvh5fi717cb7mf3jh89zh842"))))
+        (base32 "1w0lyz71dq8x28ira4hig1b70bqn1dr53w3k5dgch9szcf6xa86y"))))
     (build-system emacs-build-system)
     (propagated-inputs
      `(("emacs-auctex" ,emacs-auctex)
-       ;; The version of org in Emacs 25.2 is not sufficient, because the
-       ;; `org-latex-make-preamble' function is required.
        ("emacs-org" ,emacs-org)))
     (home-page "https://github.com/et2010/org-edit-latex")
-    (synopsis "Edit a latex fragment just like editing a src block")
-    (description "@code{emacs-org-edit-latex} is an extension for org-mode.
-It lets you edit a latex fragment in a dedicated buffer just like editing a
-src block.")
+    (synopsis "Edit a LaTeX fragment just like editing a source block")
+    (description
+     "Org Edit LaTeX is an extension for Org mode.  It lets you edit a LaTeX
+fragment in a dedicated buffer just like editing a source block.")
     (license license:gpl3+)))
 
 (define-public emacs-emamux
@@ -12635,31 +12706,29 @@ (define-public emacs-lcr
     (license license:gpl3+)))
 
 (define-public emacs-attrap
-  (let ((commit "18cd1f7832870a36c404e872fa83a271fe8e688d")
-        (revision "2"))
-    (package
-      (name "emacs-attrap")
-      (version (git-version "1.0" revision commit))
-      (source (origin
-                (method git-fetch)
-                (uri (git-reference
-                      (url "https://github.com/jyp/attrap")
-                      (commit commit)))
-                (sha256
-                 (base32
-                  "078391949h0fgmshin8f79a1a595m06ig577rkgjqgngcp0d61l9"))
-                (file-name (git-file-name name version))))
-      (build-system emacs-build-system)
-      (propagated-inputs
-       `(("emacs-dash" ,emacs-dash)
-         ("emacs-f" ,emacs-f)
-         ("emacs-flycheck" ,emacs-flycheck)
-         ("emacs-s" ,emacs-s)))
-      (home-page "https://github.com/jyp/attrap")
-      (synopsis "Fix coding error at point")
-      (description "This package provides a command to fix the Flycheck error
+  (package
+    (name "emacs-attrap")
+    (version "1.1")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/jyp/attrap")
+             (commit version)))
+       (sha256
+        (base32 "0wqc7bqx9rvk8r7fd3x84h8p01v97s6w2jf29nnjb59xakwp22i7"))
+       (file-name (git-file-name name version))))
+    (build-system emacs-build-system)
+    (propagated-inputs
+     `(("emacs-dash" ,emacs-dash)
+       ("emacs-f" ,emacs-f)
+       ("emacs-flycheck" ,emacs-flycheck)
+       ("emacs-s" ,emacs-s)))
+    (home-page "https://github.com/jyp/attrap")
+    (synopsis "Fix coding error at point")
+    (description "This package provides a command to fix the Flycheck error
 at point.")
-      (license license:gpl3+))))
+    (license license:gpl3+)))
 
 (define-public emacs-git-messenger
   (package
@@ -13268,16 +13337,16 @@ (define-public emacs-transmission
 (define-public emacs-polymode
   (package
     (name "emacs-polymode")
-    (version "0.2")
-    (source (origin
-              (method git-fetch)
-              (uri (git-reference
-                    (url "https://github.com/polymode/polymode")
-                    (commit (string-append "v" version))))
-              (file-name (git-file-name name version))
-              (sha256
-               (base32
-                "04v0gnzfsjb50bgly6kvpryx8cyzwjaq2llw4qv9ijw1l6ixmq3b"))))
+    (version "0.2.2")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/polymode/polymode")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "18ssl2h861dm2jkd3df6wkfr48p8zk337dbvpq5522kia7fq1lbn"))))
     (build-system emacs-build-system)
     (home-page "https://github.com/polymode/polymode")
     (synopsis "Framework for multiple Emacs modes based on indirect buffers")
@@ -13290,33 +13359,30 @@ (define-public emacs-polymode
     (license license:gpl3+)))
 
 (define-public emacs-polymode-ansible
-  (let ((commit "b26094d029e25dc797b94254f797e7807a57e4c8"))
-    (package
-      (name "emacs-polymode-ansible")
-      ;; No upstream version release yet.
-      (version (git-version "0.1" "1" commit))
-      (source
-       (origin
-         (method git-fetch)
-         (uri (git-reference
-               (url "https://gitlab.com/mavit/poly-ansible")
-               (commit commit)))
-         (file-name (git-file-name name version))
-         (sha256
-          (base32
-           "055shddqibib3hx2ykwdz910nrqws40cd407mq946l2bf6v87gj6"))))
-      (build-system emacs-build-system)
-      (propagated-inputs
-       `(("emacs-ansible-doc" ,emacs-ansible-doc)
-         ("emacs-jinja2-mode" ,emacs-jinja2-mode)
-         ("emacs-polymode" ,emacs-polymode)
-         ("emacs-yaml-mode" ,emacs-yaml-mode)))
-      (properties '((upstream-name . "poly-ansible")))
-      (home-page "https://gitlab.com/mavit/poly-ansible/")
-      (synopsis "Polymode for Ansible - Jinja2 in YAML")
-      (description
-       "Edit YAML files for Ansible containing embedded Jinja2 templating.")
-      (license license:gpl3+))))
+  (package
+    (name "emacs-polymode-ansible")
+    (version "0.3.0")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://gitlab.com/mavit/poly-ansible")
+             (commit version)))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "0f0yq6gmkp194nxk90ipprglf1xkmxrgz1rkgrhfslvxq4q2l81h"))))
+    (build-system emacs-build-system)
+    (propagated-inputs
+     `(("emacs-ansible-doc" ,emacs-ansible-doc)
+       ("emacs-jinja2-mode" ,emacs-jinja2-mode)
+       ("emacs-polymode" ,emacs-polymode)
+       ("emacs-yaml-mode" ,emacs-yaml-mode)))
+    (properties '((upstream-name . "poly-ansible")))
+    (home-page "https://gitlab.com/mavit/poly-ansible/")
+    (synopsis "Polymode for Ansible - Jinja2 in YAML")
+    (description
+     "Edit YAML files for Ansible containing embedded Jinja2 templating.")
+    (license license:gpl3+)))
 
 (define-public emacs-powershell
   ;; Tagged branch 0.1 is outdated (2015).
@@ -13345,7 +13411,7 @@ (define-public emacs-powershell
 (define-public emacs-polymode-org
   (package
     (name "emacs-polymode-org")
-    (version "0.2")
+    (version "0.2.2")
     (source
      (origin
        (method git-fetch)
@@ -13354,8 +13420,7 @@ (define-public emacs-polymode-org
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
-        (base32
-         "04x6apjad4kg30456z1j4ipp64yjgkcaim6hqr6bb0rmrianqhck"))))
+        (base32 "1srnwcsn2bh8gqzxixkhffk7gbnk66kd4dgvxbnps5nxqc6v0qhc"))))
     (build-system emacs-build-system)
     (propagated-inputs
      `(("emacs-polymode" ,emacs-polymode)))
@@ -13363,10 +13428,9 @@ (define-public emacs-polymode-org
     (home-page "https://github.com/polymode/poly-org")
     (synopsis "Polymode definitions for Org mode buffers")
     (description
-     "Provides definitions for @code{emacs-polymode} to support
-@code{emacs-org} buffers.  Edit source blocks in an Org mode buffer using the
-native modes of the blocks' languages while remaining inside the primary Org
-buffer.")
+     "This package provides definitions for Polymode to support Org buffers.
+It edits source blocks in an Org buffer using the native modes of the blocks'
+languages while remaining inside the primary Org buffer.")
     (license license:gpl3+)))
 
 (define-public eless
@@ -17339,7 +17403,7 @@ (define-public emacs-dts-mode
           (base32
            "1k8lljdbc90nd29xrhdrsscxavzdq532wq2mg7ljc94krj7538b1"))))
       (build-system emacs-build-system)
-      (home-page "https://github.com/bgamari/dts-mode.git")
+      (home-page "https://github.com/bgamari/dts-mode")
       (synopsis "Emacs minor mode for editing device tree files")
       (description
        "This package provides an Emacs minor mode for highlighting
@@ -19291,7 +19355,7 @@ (define-public emacs-spaceline-next
        (origin
          (method git-fetch)
          (uri (git-reference
-               (url "https://github.com/TheBB/spaceline.git")
+               (url "https://github.com/TheBB/spaceline")
                (commit commit)))
          (sha256
           (base32 "11lwckqcgzsahrkkm5wk1ph4kc7d4yz05r7251g8c9f0q6vdj9dp"))
@@ -19370,7 +19434,7 @@ (define-public emacs-helm-slime
 (define-public emacs-helm-sly
   (package
     (name "emacs-helm-sly")
-    (version "0.5.0")
+    (version "0.5.1")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -19379,7 +19443,7 @@ (define-public emacs-helm-sly
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "1690rxwwg69jbcjhi51nyjlx3gziaiaa8ssyal71gmc6schq2592"))))
+                "13s2dj09mcdwlibjlahyyq2dxjkjlpxs88dbdyvcd64249jmahsx"))))
     (build-system emacs-build-system)
     (propagated-inputs
      `(("emacs-helm" ,emacs-helm)
@@ -19885,7 +19949,7 @@ (define-public emacs-leetcode
     (package
       (name "emacs-leetcode")
       (version (git-version "0" "1" commit))
-      (home-page "https://github.com/ginqi7/leetcode-emacs.git")
+      (home-page "https://github.com/ginqi7/leetcode-emacs")
       (source (origin
                 (method git-fetch)
                 (uri (git-reference
@@ -20957,10 +21021,10 @@ (define-public emacs-transient
       (license license:gpl3+))))
 
 (define-public emacs-forge
-  (let ((commit "09bf8adc9c9afb492632e612f51f39e1cc15fca0"))
+  (let ((commit "05ef02913004826165c383bd6d2ff6574542b76c"))
     (package
       (name "emacs-forge")
-      (version (git-version "0.1.0" "4" commit))
+      (version (git-version "0.1.0" "5" commit))
       (source
        (origin
          (method git-fetch)
@@ -20970,7 +21034,7 @@ (define-public emacs-forge
          (file-name (git-file-name name version))
          (sha256
           (base32
-           "148h1rvmfmxyrfy2q5l0vzblr7lpsyw1si30hfwhzsj8fvj21qcr"))))
+           "1vv7xlawj2zmwqk69qlsqflhh0lbyqm5xf4x8l4v2069g0k8mmx1"))))
       (build-system emacs-build-system)
       (native-inputs
        `(("texinfo" ,texinfo)))
@@ -22675,14 +22739,14 @@ (define-public emacs-mastodon
 (define-public emacs-ebdb
   (package
     (name "emacs-ebdb")
-    (version "0.6.20")
+    (version "0.6.21")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "https://elpa.gnu.org/packages/"
                            "ebdb-" version ".tar"))
        (sha256
-        (base32 "1rhmnz2g4nmk893gzxm1hfwqf5nan20yss5mxilfpza2jh4368h3"))))
+        (base32 "0pp190wr6z98kggmw9ls486f9vxfimdjdbqsp263qiyi21ws98if"))))
     (build-system emacs-build-system)
     (home-page "https://github.com/girzel/ebdb")
     (synopsis "EIEIO port of BBDB, Emacs's contact-management package")
@@ -24915,7 +24979,7 @@ (define-public emacs-org-generate
     (source (origin
               (method git-fetch)
               (uri (git-reference
-                    (url "https://github.com/conao3/org-generate.el.git")
+                    (url "https://github.com/conao3/org-generate.el")
                     (commit (string-append "v" version))))
               (file-name (git-file-name name version))
               (sha256
@@ -25208,7 +25272,7 @@ (define-public emacs-highlight
 (define-public emacs-org-webring
   (package
     (name "emacs-org-webring")
-    (version "1.9.8-rc4")
+    (version "2.0.0")
     (source
      (origin
        (method git-fetch)
@@ -25218,7 +25282,7 @@ (define-public emacs-org-webring
        (file-name (git-file-name name version))
        (sha256
         (base32
-         "0z2q29i9ng2vkzb6qbwb0dzvz8yv44p0kg07lx59pcdbv7mznjmc"))))
+         "1si0jah7n2gvlvghjy5dpannqpkxni5rczfp1x2a4z6ydalr3bn5"))))
     (build-system emacs-build-system)
     (arguments
      `(#:phases
@@ -25473,3 +25537,57 @@ (define-public emacs-nord-theme
 uncluttered design pattern to achieve optimal focus and readability for code
 syntax highlighting and UI components.")
     (license license:expat)))
+
+(define-public emacs-janet-mode
+  (let ((commit "2f5bcabcb6953e1ed1926ba6a2328c453e8b4ac7"))
+    (package
+      (name "emacs-janet-mode")
+      (version (git-version "0.1.0" "1" commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/ALSchwalm/janet-mode")
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32 "0qj0gpycv2f3z1dgz1a27bjn983hrr3ppvrp7csl34lagnmp89rz"))))
+      (build-system emacs-build-system)
+      (home-page "https://github.com/ALSchwalm/janet-mode")
+      (synopsis "Emacs major mode for the Janet programming language")
+      (description
+       "This package provides an Emacs major mode for editing Janet files.")
+      (license license:gpl3))))
+
+(define-public emacs-inf-janet
+  (let ((commit "df46651d3aad32593b2195c80ca91fb64d571fb7"))
+    (package
+      (name "emacs-inf-janet")
+      (version (git-version "0.1.0" "1" commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/velkyel/inf-janet")
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32 "0g0y7q62667j0p32md1h6zb2cap9fga9qgdg7138xwjqnk0328v7"))))
+      (build-system emacs-build-system)
+      (propagated-inputs
+       `(("janet-mode" ,emacs-janet-mode)))
+      (arguments
+       `(#:phases
+         (modify-phases %standard-phases
+           (add-after 'unpack 'fix-program-name
+             (lambda _
+               (make-file-writable "inf-janet.el")
+               (emacs-substitute-variables "inf-janet.el"
+                 ("inf-janet-program" "janet"))
+               #t)))))
+      (home-page "https://github.com/velkyel/inf-janet")
+      (synopsis "Run an external Janet process in an Emacs buffer")
+      (description
+       "This Emacs package provides a Janet REPL to evaluate @code{janet-mode}
+s-expression.")
+      (license license:expat))))
diff --git a/gnu/packages/embedded.scm b/gnu/packages/embedded.scm
index 89d4aaf97e..d6f487bd17 100644
--- a/gnu/packages/embedded.scm
+++ b/gnu/packages/embedded.scm
@@ -1379,7 +1379,7 @@ (define-public ebusd
     (source (origin
               (method git-fetch)
               (uri (git-reference
-                     (url "https://github.com/john30/ebusd.git")
+                     (url "https://github.com/john30/ebusd")
                      (commit (string-append "v" version))))
               (file-name (string-append name "-" version "-checkout"))
               (sha256
@@ -1407,7 +1407,7 @@ (define-public ebusd
         ,(origin
               (method git-fetch)
               (uri (git-reference
-                     (url "https://github.com/john30/ebusd-configuration.git")
+                     (url "https://github.com/john30/ebusd-configuration")
                      (commit "666c0f6b9c4d7545eff7f43ab28a1c7baeab7913")))
               (file-name "config-checkout")
               (sha256
diff --git a/gnu/packages/enchant.scm b/gnu/packages/enchant.scm
index 950cb16505..dd7c7c8365 100644
--- a/gnu/packages/enchant.scm
+++ b/gnu/packages/enchant.scm
@@ -49,7 +49,7 @@ (define-public nuspell
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/nuspell/nuspell.git")
+         (url "https://github.com/nuspell/nuspell")
          (commit
           (string-append "v" version))))
        (file-name
diff --git a/gnu/packages/file-systems.scm b/gnu/packages/file-systems.scm
index 974ddc30ee..bc147bf3c6 100644
--- a/gnu/packages/file-systems.scm
+++ b/gnu/packages/file-systems.scm
@@ -68,6 +68,7 @@ (define-module (gnu packages file-systems)
   #:use-module (gnu packages sqlite)
   #:use-module (gnu packages tls)
   #:use-module (gnu packages valgrind)
+  #:use-module (gnu packages version-control)
   #:use-module (gnu packages xml))
 
 (define-public autofs
@@ -182,6 +183,79 @@ (define-public bindfs
 @end itemize ")
     (license license:gpl2+)))
 
+(define-public davfs2
+  (package
+    (name "davfs2")
+    (version "1.6.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://download.savannah.nongnu.org/releases/"
+                           "davfs2/davfs2-" version ".tar.gz"))
+       (sha256
+        (base32 "0l1vnv5lfigciwg17p10zxwhzj4qw2d9kw30prr7g4dxhmb6fsrf"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:configure-flags
+       (list "--sysconfdir=/etc"        ; so man pages & binaries contain /etc
+             (string-append "--docdir=" (assoc-ref %outputs "out")
+                            "/share/doc/" ,name "-" ,version)
+             (string-append "ssbindir=" (assoc-ref %outputs "out") "/sbin")
+             ;; The default ‘davfs2’ user and group don't exist on most systems.
+             "dav_user=nobody"
+             "dav_group=nogroup")
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'omit-redundancy
+           ;; Don't install redundant copies of /etc examples into /share.
+           (lambda _
+             (substitute* "etc/Makefile.in"
+               (("(dist_pkgdata_DATA =.*) davfs2.conf secrets(.*)"
+                 _ prefix suffix)
+                (string-append prefix suffix)))
+             #t))
+         (add-after 'unpack 'patch-file-names
+           (lambda _
+             ;; Don't auto-load the FUSE kernel module.  That's up to root.
+             ;; XXX If/when we restore the previous behaviour, make sure not
+             ;; to introduce a security hole when mount.davfs is setuid.
+             (substitute* "src/kernel_interface.c"
+               (("/sbin/modprobe") "/modprobe/disabled"))
+             #t))
+         (replace 'install
+           (lambda* (#:key make-flags outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out")))
+               (apply invoke "make" "install"
+                      (string-append "pkgsysconfdir=" out "/etc")
+                      make-flags)))))))
+    (inputs
+     `(("neon" ,neon)
+
+       ;; Neon requires but doesn't propagate zlib, nor would we want that.
+       ;; XZ as well, but that's already present in the build environment.
+       ("zlib" ,zlib)))
+    (home-page "https://savannah.nongnu.org/projects/davfs2")
+    (synopsis "Mount remote WebDAV resources in the local file system")
+    (description
+     "The @acronym{WebDAV, Web Distributed Authoring and Versioning} extension
+to the HTTP protocol defines a standard way to author resources on a remote Web
+server.  Davfs2 exposes such resources as a typical filesystem which can be used
+by standard applications with no built-in support for WebDAV, such as the GNU
+coreutils (@command{cp}, @command{mv}, etc.) or a graphical word processor.
+
+Davfs2 works with most WebDAV servers with no or little configuration.  It
+supports TLS (HTTPS), HTTP proxies, HTTP basic and digest authentication, and
+client certificates.  It performs extensive caching to avoid unnecessary network
+traffic, stay responsive even over slow or unreliable connections, and prevent
+data loss.  It aims to make use by unprivileged users as easy and secure as
+possible.
+
+However, davfs2 is not a full-featured WebDAV client.  The file system interface
+and the WebDAV protocol are quite different.  Translating between the two is not
+always possible.")
+    (license (list license:bsd-2        ; src/fuse_kernel.h
+                   license:gpl3+))))    ; everything else
+
 (define-public fsarchiver
   (package
     (name "fsarchiver")
diff --git a/gnu/packages/fontutils.scm b/gnu/packages/fontutils.scm
index 89d5013a8b..870b6dd7b9 100644
--- a/gnu/packages/fontutils.scm
+++ b/gnu/packages/fontutils.scm
@@ -283,7 +283,7 @@ (define-public woff2
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/google/woff2.git")
+         (url "https://github.com/google/woff2")
          (commit (string-append "v" version))))
        (file-name
         (git-file-name name version))
diff --git a/gnu/packages/game-development.scm b/gnu/packages/game-development.scm
index 534a5ea881..8c8ed19338 100644
--- a/gnu/packages/game-development.scm
+++ b/gnu/packages/game-development.scm
@@ -444,7 +444,7 @@ (define-public python-xsge
 (define-public tiled
   (package
     (name "tiled")
-    (version "1.4.2")
+    (version "1.4.3")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -453,7 +453,7 @@ (define-public tiled
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "0nhmv5rnmlnnmkiz95l3iy62f3754d98dm1wyh1m47xb3nbnl05b"))))
+                "14bx4gywfzr2f07ldqk3la82g5ag1agj21f7ccrxip12ydmpx0xb"))))
     (build-system gnu-build-system)
     (inputs
      `(("qtbase" ,qtbase)
diff --git a/gnu/packages/games.scm b/gnu/packages/games.scm
index 12cc64fefa..4dfd65040a 100644
--- a/gnu/packages/games.scm
+++ b/gnu/packages/games.scm
@@ -4436,7 +4436,7 @@ (define-public einstein
 (define-public powwow
   (package
     (name "powwow")
-    (version "1.2.19")
+    (version "1.2.22")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -4444,7 +4444,7 @@ (define-public powwow
                     version ".tar.gz"))
               (sha256
                (base32
-                "10rjl63hmf62qslyhzqrbw3i2zf09dgxv65avhj0iiz0m4pbc9wy"))))
+                "12i11b8zxg8vdb9d6ims8qy2lmwwr42rcqbwq3vsa1x94s51bcbp"))))
     (inputs
      `(("ncurses" ,ncurses)))
     (build-system gnu-build-system)
diff --git a/gnu/packages/geo.scm b/gnu/packages/geo.scm
index c412ec35b6..395ad4be7a 100644
--- a/gnu/packages/geo.scm
+++ b/gnu/packages/geo.scm
@@ -112,7 +112,7 @@ (define-public memphis
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/jiuka/memphis.git")
+         (url "https://github.com/jiuka/memphis")
          (commit version)))
        (file-name (git-file-name name version))
        (sha256
diff --git a/gnu/packages/gimp.scm b/gnu/packages/gimp.scm
index 530a53a92b..ff986c0a02 100644
--- a/gnu/packages/gimp.scm
+++ b/gnu/packages/gimp.scm
@@ -139,7 +139,7 @@ (define-public mrg
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/hodefoting/mrg.git")
+         (url "https://github.com/hodefoting/mrg")
          (commit version)))
        (file-name
         (git-file-name name version))
diff --git a/gnu/packages/gnome-xyz.scm b/gnu/packages/gnome-xyz.scm
index 77b4aada6f..d69f14ba0e 100644
--- a/gnu/packages/gnome-xyz.scm
+++ b/gnu/packages/gnome-xyz.scm
@@ -131,7 +131,7 @@ (define-public gnome-shell-extension-appindicator
               (method git-fetch)
               (uri (git-reference
                     (url
-                     "https://github.com/ubuntu/gnome-shell-extension-appindicator.git")
+                     "https://github.com/ubuntu/gnome-shell-extension-appindicator")
                     (commit (string-append "v" version))))
               (sha256
                (base32
diff --git a/gnu/packages/gnome.scm b/gnu/packages/gnome.scm
index e22384a625..20182a4ff9 100644
--- a/gnu/packages/gnome.scm
+++ b/gnu/packages/gnome.scm
@@ -10406,9 +10406,9 @@ (define-public cheese
     (native-inputs
      `(("docbook-xsl" ,docbook-xsl)
        ("docbook-xml" ,docbook-xml-4.3)
+       ("gettext" ,gettext-minimal)
        ("glib:bin" ,glib "bin")
        ("gtk-doc" ,gtk-doc)
-       ("intltool" ,intltool)
        ("itstool" ,itstool)
        ("libxml2" ,libxml2)
        ("libxslt" ,libxslt)
@@ -11676,7 +11676,7 @@ (define-public parlatype
      (origin
        (method git-fetch)
        (uri (git-reference
-             (url "https://github.com/gkarsay/parlatype.git")
+             (url "https://github.com/gkarsay/parlatype")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -11915,7 +11915,7 @@ (define-public gnome-builder
 (define-public komikku
   (package
     (name "komikku")
-    (version "0.22.1")
+    (version "0.23.0")
     (source
      (origin
        (method git-fetch)
@@ -11925,7 +11925,7 @@ (define-public komikku
        (file-name (git-file-name name version))
        (sha256
         (base32
-         "0ds4j542zprbyh36qyii1c9mb7kj14cvrfk5miqjvp8y4b5i6mdi"))))
+         "1xh3qmf2pk80qxj528lajjcwg7mps72s1zz8cj388av58p8l3hyw"))))
     (build-system meson-build-system)
     (arguments
      `(#:glib-or-gtk? #t
diff --git a/gnu/packages/gnuzilla.scm b/gnu/packages/gnuzilla.scm
index e657dbd110..3f6ed75403 100644
--- a/gnu/packages/gnuzilla.scm
+++ b/gnu/packages/gnuzilla.scm
@@ -1161,11 +1161,11 @@ (define-public icecat
        (cpe-version . ,(first (string-split version #\-)))))))
 
 ;; Update this together with icecat!
-(define %icedove-build-id "20201111000000") ;must be of the form YYYYMMDDhhmmss
+(define %icedove-build-id "20201117000000") ;must be of the form YYYYMMDDhhmmss
 (define-public icedove
   (package
     (name "icedove")
-    (version "78.4.3")
+    (version "78.5.0")
     (source icecat-source)
     (properties
      `((cpe-name . "thunderbird_esr")))
@@ -1445,7 +1445,7 @@ (define-public icedove
         ;; in the Thunderbird release tarball.  We don't use the release
         ;; tarball because it duplicates the Icecat sources and only adds the
         ;; "comm" directory, which is provided by this repository.
-        ,(let ((changeset "6ee1d79f9e77c90f0f165b9315b5b437a220b665"))
+        ,(let ((changeset "92abc26b9c80383e974fb0234f22e06fea793be2"))
            (origin
              (method hg-fetch)
              (uri (hg-reference
@@ -1454,7 +1454,7 @@ (define-public icedove
              (file-name (string-append "thunderbird-" version "-checkout"))
              (sha256
               (base32
-               "0m6isazpirmviv14kjav8jn3w3gm3mls0qwyf1n87hj00bj6z6jc")))))
+               "0468k3qrqs9w1vva2fdxvwqdsypqpsdy5iixgx58dqivchg4qlf9")))))
        ("autoconf" ,autoconf-2.13)
        ("cargo" ,rust-1.41 "cargo")
        ("clang" ,clang)
diff --git a/gnu/packages/golang.scm b/gnu/packages/golang.scm
index 4ac9071457..92533cfd50 100644
--- a/gnu/packages/golang.scm
+++ b/gnu/packages/golang.scm
@@ -1145,7 +1145,7 @@ (define-public go-github-com-tv42-httpunix
        (origin
          (method git-fetch)
          (uri (git-reference
-               (url "https://github.com/tv42/httpunix.git")
+               (url "https://github.com/tv42/httpunix")
                (commit commit)))
          (file-name (git-file-name name version))
          (sha256
@@ -1714,7 +1714,7 @@ (define-public go-github-com-ayufan-golang-kardianos-service
          (method git-fetch)
          (uri (git-reference
                (url
-                "https://github.com/ayufan/golang-kardianos-service.git")
+                "https://github.com/ayufan/golang-kardianos-service")
                (commit commit)))
          (file-name (git-file-name name version))
          (sha256
diff --git a/gnu/packages/graphics.scm b/gnu/packages/graphics.scm
index dbf89e3894..7a61084f24 100644
--- a/gnu/packages/graphics.scm
+++ b/gnu/packages/graphics.scm
@@ -121,7 +121,7 @@ (define-public eglexternalplatform
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/NVIDIA/eglexternalplatform.git")
+         (url "https://github.com/NVIDIA/eglexternalplatform")
          (commit version)))
        (file-name
         (git-file-name name version))
@@ -172,7 +172,7 @@ (define-public egl-wayland
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/NVIDIA/egl-wayland.git")
+         (url "https://github.com/NVIDIA/egl-wayland")
          (commit version)))
        (file-name
         (git-file-name name version))
@@ -202,7 +202,7 @@ (define-public mmm
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/hodefoting/mmm.git")
+         (url "https://github.com/hodefoting/mmm")
          (commit version)))
        (file-name
         (git-file-name name version))
@@ -231,7 +231,7 @@ (define-public directfb
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/deniskropp/DirectFB.git")
+         (url "https://github.com/deniskropp/DirectFB")
          (commit "DIRECTFB_1_7_7")))
        (file-name (git-file-name name version))
        (sha256
@@ -301,7 +301,7 @@ (define-public flux
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/deniskropp/flux.git")
+         (url "https://github.com/deniskropp/flux")
          (commit "e45758a")))
        (file-name (git-file-name name version))
        (sha256
diff --git a/gnu/packages/gstreamer.scm b/gnu/packages/gstreamer.scm
index 85c48a6877..af50119d75 100644
--- a/gnu/packages/gstreamer.scm
+++ b/gnu/packages/gstreamer.scm
@@ -95,7 +95,7 @@ (define-public openni2
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/occipital/OpenNI2.git")
+         (url "https://github.com/occipital/OpenNI2")
          (commit (string-append "v" version "-debian"))))
        (file-name (git-file-name name version))
        (sha256
@@ -167,7 +167,7 @@ (define-public ccextractor
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/CCExtractor/ccextractor.git")
+         (url "https://github.com/CCExtractor/ccextractor")
          (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -220,7 +220,7 @@ (define-public libvisual
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/Libvisual/libvisual.git")
+         (url "https://github.com/Libvisual/libvisual")
          (commit (string-append name "-" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -268,7 +268,7 @@ (define-public libvisual-plugins
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/Libvisual/libvisual.git")
+         (url "https://github.com/Libvisual/libvisual")
          (commit (string-append name "-" version))))
        (file-name (git-file-name name version))
        (sha256
diff --git a/gnu/packages/guile-xyz.scm b/gnu/packages/guile-xyz.scm
index 01949e2aaa..5ec5eefadd 100644
--- a/gnu/packages/guile-xyz.scm
+++ b/gnu/packages/guile-xyz.scm
@@ -966,8 +966,8 @@ (define-public guile-aa-tree
     (license license:gpl3+)))
 
 (define-public guile-simple-zmq
-  (let ((commit "68bedb6679716214fb9d3472da57544526f7a618")
-        (revision "3"))
+  (let ((commit "5fc3b7190d31c258ce969c2a5d2ad38c66a09d09")
+        (revision "4"))
     (package
       (name "guile-simple-zmq")
       (version (git-version "0.0.0" revision commit))
@@ -979,7 +979,7 @@ (define-public guile-simple-zmq
                (commit commit)))
          (sha256
           (base32
-           "1ad3xg69qqviy1f6dnlw0ysmfdbmp1jq65rfqb8nfd8dsrq2syli"))
+           "0inhvl5jssvbw3nd129wdahfwyvy1iciq403wzf0algbvl1fqs7z"))
          (file-name (git-file-name name version))))
       (build-system guile-build-system)
       (arguments
@@ -2973,7 +2973,7 @@ (define-public guile-srfi-180
        (origin
          (method git-fetch)
          (uri (git-reference
-               (url "https://github.com/scheme-requests-for-implementation/srfi-180.git")
+               (url "https://github.com/scheme-requests-for-implementation/srfi-180")
                (commit commit)))
          (sha256
           (base32
@@ -3734,7 +3734,7 @@ (define-public guile-torrent
     (source (origin (method git-fetch)
                     (uri (git-reference
                           (url
-                           "https://github.com/o-nly/torrent.git")
+                           "https://github.com/o-nly/torrent")
                           (commit version)))
                     (file-name (git-file-name name version))
                     (sha256
diff --git a/gnu/packages/haskell-web.scm b/gnu/packages/haskell-web.scm
index a4269599f6..9a149187b6 100644
--- a/gnu/packages/haskell-web.scm
+++ b/gnu/packages/haskell-web.scm
@@ -10,6 +10,7 @@
 ;;; Copyright © 2020 Alexandru-Sergiu Marton <brown121407@gmail.com>
 ;;; Copyright © 2020 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2020 Kyle Meyer <kyle@kyleam.com>
+;;; Copyright © 2020 Alexandru-Sergiu Marton <brown121407@member.fsf.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -417,6 +418,48 @@ (define-public ghc-http-conduit
 which allow you to avoid direct usage of conduits.")
     (license license:bsd-3)))
 
+(define-public ghc-http-reverse-proxy
+  (package
+    (name "ghc-http-reverse-proxy")
+    (version "0.6.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "https://hackage.haskell.org/package/http-reverse-proxy/"
+             "http-reverse-proxy-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1a6i5njf85b2lhg8m83njagcf09wih5q2irnyb2890s724qr277v"))))
+    (build-system haskell-build-system)
+    (inputs
+     `(("ghc-case-insensitive" ,ghc-case-insensitive)
+       ("ghc-http-types" ,ghc-http-types)
+       ("ghc-word8" ,ghc-word8)
+       ("ghc-blaze-builder" ,ghc-blaze-builder)
+       ("ghc-http-client" ,ghc-http-client)
+       ("ghc-wai" ,ghc-wai)
+       ("ghc-network" ,ghc-network)
+       ("ghc-conduit" ,ghc-conduit)
+       ("ghc-conduit-extra" ,ghc-conduit-extra)
+       ("ghc-wai-logger" ,ghc-wai-logger)
+       ("ghc-resourcet" ,ghc-resourcet)
+       ("ghc-unliftio" ,ghc-unliftio)
+       ("ghc-streaming-commons" ,ghc-streaming-commons)))
+    (native-inputs
+     `(("ghc-hspec" ,ghc-hspec)
+       ("ghc-warp" ,ghc-warp)
+       ("ghc-http-conduit" ,ghc-http-conduit)))
+    (home-page
+     "https://github.com/fpco/http-reverse-proxy")
+    (synopsis
+     "Reverse proxy HTTP requests, either over raw sockets or with WAI")
+    (description
+     "Provides a simple means of reverse-proxying HTTP requests.  The raw
+approach uses the same technique as leveraged by keter, whereas the WAI
+approach performs full request/response parsing via WAI and http-conduit.")
+    (license license:bsd-3)))
+
 (define-public ghc-wai
   (package
     (name "ghc-wai")
diff --git a/gnu/packages/heads.scm b/gnu/packages/heads.scm
index b28433431c..5f49265ebb 100644
--- a/gnu/packages/heads.scm
+++ b/gnu/packages/heads.scm
@@ -19,6 +19,7 @@
 (define-module (gnu packages heads)
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix build-system gnu)
+  #:use-module (guix build-system trivial)
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix git-download)
@@ -161,3 +162,36 @@ (define (install-file* source-key destination-directory
     (synopsis "Musl-cross gcc 5 toolchain")
     (description "Musl-cross toolchain: binutils, gcc 5 and musl.")
     (license license:isc))))
+
+;; This package provides a "dev.cpio" file usable as a base for booting Heads.
+(define-public heads-dev-cpio
+  (package
+    (name "heads-dev-cpio")
+    (version "0.1")
+    (source #f)
+    (build-system trivial-build-system)
+    (arguments
+     `(#:modules ((guix build utils)
+                  (guix cpio))
+       #:builder (begin
+                   (use-modules (guix build utils)
+                                (guix cpio)
+                                (srfi srfi-26))
+                   (mkdir-p "dev") ; input directory.
+                   (let* ((out (assoc-ref %outputs "out"))
+                          (libexec (string-append out "/libexec")))
+                     (mkdir-p libexec)
+                     (call-with-output-file (string-append libexec "/dev.cpio")
+                      (lambda (port)
+                        (write-cpio-archive '("dev" "dev/console") port
+                         #:file->header
+                         (lambda (name)
+                           (if (string=? "dev/console" name)
+                               (special-file->cpio-header* name 'char-special 5 1 #o600)
+                               (file->cpio-header* name))))))
+                     #t))))
+    (synopsis "@file{dev.cpio} for Heads")
+    (description "This package provides a @file{dev.cpio} file usable as a
+base for heads' initrd.")
+    (home-page "http://osresearch.net/")
+    (license license:bsd-2)))
diff --git a/gnu/packages/image.scm b/gnu/packages/image.scm
index 75f9a1bf36..5bc144f769 100644
--- a/gnu/packages/image.scm
+++ b/gnu/packages/image.scm
@@ -791,7 +791,7 @@ (define-public openjpeg-data
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/uclouvain/openjpeg-data.git")
+         (url "https://github.com/uclouvain/openjpeg-data")
          (commit "c5c4a8c")))
        (file-name (git-file-name name version))
        (sha256
diff --git a/gnu/packages/irc.scm b/gnu/packages/irc.scm
index 0d9908c771..61144618c0 100644
--- a/gnu/packages/irc.scm
+++ b/gnu/packages/irc.scm
@@ -62,6 +62,7 @@ (define-module (gnu packages irc)
   #:use-module (gnu packages openldap)
   #:use-module (gnu packages kde)
   #:use-module (gnu packages kde-frameworks)
+  #:use-module (gnu packages password-utils)
   #:use-module (gnu packages pcre)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
@@ -499,7 +500,7 @@ (define-public epic5
 (define-public inspircd
   (package
     (name "inspircd")
-    (version "3.7.0")
+    (version "3.8.1")
     (source
      (origin
        (method git-fetch)
@@ -508,13 +509,13 @@ (define-public inspircd
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
-        (base32
-         "1npzp23c3ac7m1grkm39i1asj04rs4i0jwf5w0c0j0hmnwslnz7a"))))
+        (base32 "1i30649dw84iscxa5as81g96f393mn1i883aq4za5ypdinr5x65g"))))
     (build-system gnu-build-system)
     (arguments
      `(#:configure-flags (map (lambda (module)
                                 (string-append "--enable-extras=" module))
-                              '("m_geo_maxmind.cpp"
+                              '("m_argon2.cpp"
+                                "m_geo_maxmind.cpp"
                                 "m_ldap.cpp"
                                 "m_mysql.cpp"
                                 "m_pgsql.cpp"
@@ -550,16 +551,17 @@ (define-public inspircd
                        (string-append "--config-dir=" out-etc name)))
              #t)))))
     (native-inputs
-     `(("gnutls" ,gnutls)
-       ("libgcrypt" ,libgcrypt)
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("argon2" ,argon2)
+       ("gnutls" ,gnutls)
        ("libmaxminddb" ,libmaxminddb)
-       ("mysql" ,mysql)
        ("mbedtls-apache" ,mbedtls-apache)
+       ("mysql" ,mysql)
        ("openldap" ,openldap)
        ("openssl" ,openssl)
        ("pcre" ,pcre "bin")
        ("perl" ,perl)
-       ("pkg-config" ,pkg-config)
        ("postgresql" ,postgresql)
        ("re2" ,re2)
        ("sqlite" ,sqlite)
diff --git a/gnu/packages/java.scm b/gnu/packages/java.scm
index 35f905136f..e298fd9537 100644
--- a/gnu/packages/java.scm
+++ b/gnu/packages/java.scm
@@ -2723,7 +2723,7 @@ (define-public javacc-3
     (source (origin
               (method git-fetch)
               (uri (git-reference
-                    (url "https://github.com/javacc/javacc.git")
+                    (url "https://github.com/javacc/javacc")
                     (commit "release_32")))
               (file-name (string-append "javacc-" version "-checkout"))
               (sha256
diff --git a/gnu/packages/language.scm b/gnu/packages/language.scm
index 27c13fab8a..3f17465039 100644
--- a/gnu/packages/language.scm
+++ b/gnu/packages/language.scm
@@ -62,7 +62,7 @@ (define-public liblouis
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/liblouis/liblouis.git")
+         (url "https://github.com/liblouis/liblouis")
          (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -115,7 +115,7 @@ (define-public liblouisutdml
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/liblouis/liblouisutdml.git")
+         (url "https://github.com/liblouis/liblouisutdml")
          (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
diff --git a/gnu/packages/lego.scm b/gnu/packages/lego.scm
index 2067e45dd1..2294d693c5 100644
--- a/gnu/packages/lego.scm
+++ b/gnu/packages/lego.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2016, 2017, 2019 Eric Bavier <bavier@posteo.net>
-;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2018, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -35,6 +35,8 @@ (define-public nqc
     (name "nqc")
     (version "3.1.r6")
     (source (origin
+              ;; XXX Using url-fetch/tarbomb results in failure:
+              ;; Error: could not create compiler/rcx1_nqh.h
               (method url-fetch)
               (uri (string-append "http://bricxcc.sourceforge.net/nqc/release/"
                                   "nqc-" version ".tgz"))
@@ -44,24 +46,48 @@ (define-public nqc
     (build-system gnu-build-system)
     (native-inputs
      `(("bison" ,bison)
-       ("flex" ,flex)))
+       ("flex" ,flex)
+       ("add-usb-tcp-support.patch"
+        ,(origin
+           (method url-fetch)
+           (uri (string-append "https://sourceforge.net/p/bricxcc/patches/"
+                               "_discuss/thread/00b427dc/b84b/attachment/"
+                               "nqc-01-Linux_usb_and_tcp.diff"))
+           (sha256
+            (base32 "0z5gx55ra1kamhhqxz08lvvwslfl36pbmwdd566rhmbgmyhlykbr"))))
+       ("debian-writable-swap-inst-len.patch"
+        ,(origin
+           (method url-fetch)
+           (uri (string-append "https://sources.debian.org/data/main/n/nqc/"
+                               "3.1.r6-7/debian/patches/"
+                               "writable-swap-inst-len.patch"))
+           (sha256
+            (base32 "1kr7j057aa5i0kxmlfpbfcsif5yq2lrmjw4sljn400ijaq4mys3v"))))))
     (arguments
      '(#:tests? #f                      ;no tests
        #:make-flags (list (string-append "PREFIX=" %output))
-       #:phases (modify-phases %standard-phases
-                  (delete 'configure)
-                  (add-before 'build 'rm-generated
-                    ;; Regenerating compiler/lexer.cpp avoids an 'undefined
-                    ;; reference to `isatty(int)'' error.
-                    (lambda _
-                      (for-each delete-file
-                                '("compiler/lexer.cpp"
-                                  "compiler/parse.cpp"))
-                      #t))
-                  (add-after 'unpack 'deal-with-tarbomb
-                    (lambda _
-                      (chdir "..")      ;tarbomb
-                      #t)))))
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)
+         (add-before 'build 'rm-generated
+           ;; Regenerating compiler/lexer.cpp avoids an 'undefined
+           ;; reference to `isatty(int)'' error.
+           (lambda _
+             (for-each delete-file
+                       '("compiler/lexer.cpp"
+                         "compiler/parse.cpp"))
+             #t))
+         (add-after 'unpack 'deal-with-tarbomb
+           (lambda _
+             (chdir "..")               ;tarbomb
+             #t))
+         (add-after 'deal-with-tarbomb 'patch
+           (lambda* (#:key inputs #:allow-other-keys)
+             (for-each (lambda (patch)
+                         (invoke "patch" "-Np1" "-i"
+                                 (assoc-ref inputs patch)))
+                       (list "add-usb-tcp-support.patch"
+                             "debian-writable-swap-inst-len.patch")))))))
     (home-page "http://bricxcc.sourceforge.net/nqc/")
     (synopsis "C-like language for Lego's MINDSTORMS")
     (description
diff --git a/gnu/packages/libusb.scm b/gnu/packages/libusb.scm
index f109ca0d8b..337f390fc1 100644
--- a/gnu/packages/libusb.scm
+++ b/gnu/packages/libusb.scm
@@ -564,7 +564,7 @@ (define-public gmtp
 (define-public hidapi
   (package
     (name "hidapi")
-    (version "0.9.0")
+    (version "0.10.0")
     (source
      (origin
        (method git-fetch)
@@ -573,7 +573,7 @@ (define-public hidapi
              (commit (string-append "hidapi-" version))))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "1p4g8lgwj4rki6lbn5l6rvwj0xlbn1xfh4d255bg5pvgczmwmc4i"))))
+        (base32 "1n3xn1zvxgyzb84cjpw3i5alw0gkbrps11r4ijxzyqxqym0khagr"))))
     (build-system gnu-build-system)
     (inputs
      `(("libusb" ,libusb)
diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
index c40d948e88..fd2c43aec8 100644
--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -352,15 +352,15 @@ (define (%upstream-linux-source version hash)
 
 ;; The current "stable" kernel. That is, the most recently released major
 ;; version.
-(define-public linux-libre-5.9-version "5.9.8")
+(define-public linux-libre-5.9-version "5.9.9")
 (define deblob-scripts-5.9
   (linux-libre-deblob-scripts
    linux-libre-5.9-version
    (base32 "1l0iw2lp6alk0a8nvdafklyks83iiyw4b2r5xif84z47qfbydsis")
-   (base32 "0wp0mx5d2qhv7brc595qj34phiaxz9z5gf26w5369nh9mll5cbw6")))
+   (base32 "0yb04a4j2wq3mwvks3cj7kcm2pscmfs29lrz3falkxpbvjxbbgq2")))
 (define-public linux-libre-5.9-pristine-source
   (let ((version linux-libre-5.9-version)
-        (hash (base32 "19l67gzk97higd2cbggipcb0wi21pv0ag0mc4qh6cqk564xp6mkn")))
+        (hash (base32 "1b8zysy0br131ydhc7ycxhh8d88r44xrmkf2q2lffy0jmy3d60m3")))
    (make-linux-libre-source version
                             (%upstream-linux-source version hash)
                             deblob-scripts-5.9)))
@@ -368,7 +368,7 @@ (define-public linux-libre-5.9-pristine-source
 ;; The "longterm" kernels — the older releases with long-term upstream support.
 ;; Here are the support timelines:
 ;; <https://www.kernel.org/category/releases.html>
-(define-public linux-libre-5.4-version "5.4.77")
+(define-public linux-libre-5.4-version "5.4.78")
 (define deblob-scripts-5.4
   (linux-libre-deblob-scripts
    linux-libre-5.4-version
@@ -376,12 +376,12 @@ (define deblob-scripts-5.4
    (base32 "167zcfkw62pm6nv1xdvvhxw0ca724sywcywnv3z00189f8f8p3vg")))
 (define-public linux-libre-5.4-pristine-source
   (let ((version linux-libre-5.4-version)
-        (hash (base32 "1xyvml0mps7bsa11bgpa4l0w8x6pasdz9yab2z4ds394f1lkxq53")))
+        (hash (base32 "0z8skj0w9jfrz9pfxaqfzqh82l13bz5lhza2wjsxk02cyhhnm226")))
    (make-linux-libre-source version
                             (%upstream-linux-source version hash)
                             deblob-scripts-5.4)))
 
-(define-public linux-libre-4.19-version "4.19.157")
+(define-public linux-libre-4.19-version "4.19.158")
 (define deblob-scripts-4.19
   (linux-libre-deblob-scripts
    linux-libre-4.19-version
@@ -389,12 +389,12 @@ (define deblob-scripts-4.19
    (base32 "1jiaw0as1ippkrjdpd52657w5mz9qczg3y2hlra7m9k0xawwiqlf")))
 (define-public linux-libre-4.19-pristine-source
   (let ((version linux-libre-4.19-version)
-        (hash (base32 "0mgpgv2ny49bb7kgaygy2ay6ckjgw7mg091viivi66jw4mjs7p3n")))
+        (hash (base32 "0p5pim9izcscnk1a1kdlxbvyvxnnq9lqr1kwl86kfskr7yqy8n6n")))
     (make-linux-libre-source version
                              (%upstream-linux-source version hash)
                              deblob-scripts-4.19)))
 
-(define-public linux-libre-4.14-version "4.14.206")
+(define-public linux-libre-4.14-version "4.14.207")
 (define deblob-scripts-4.14
   (linux-libre-deblob-scripts
    linux-libre-4.14-version
@@ -402,12 +402,12 @@ (define deblob-scripts-4.14
    (base32 "1qij18inijj6c3ma8hv98yjagnzxdxyn134da9fd23ky8q6hbvky")))
 (define-public linux-libre-4.14-pristine-source
   (let ((version linux-libre-4.14-version)
-        (hash (base32 "1b46f0s15xnlam43cmw8w41rrvcwrhm6km0278lq6f86lpx3w8qw")))
+        (hash (base32 "0a804hwh7cwbdd2gnr5n9i32b4s6gppd8iqihah4sn4q1nbm79vq")))
     (make-linux-libre-source version
                              (%upstream-linux-source version hash)
                              deblob-scripts-4.14)))
 
-(define-public linux-libre-4.9-version "4.9.243")
+(define-public linux-libre-4.9-version "4.9.244")
 (define deblob-scripts-4.9
   (linux-libre-deblob-scripts
    linux-libre-4.9-version
@@ -415,12 +415,12 @@ (define deblob-scripts-4.9
    (base32 "0fxajshb75siq39lj5h8xvhdj8lcmddkslwlyj65rhlwk6g2r4b2")))
 (define-public linux-libre-4.9-pristine-source
   (let ((version linux-libre-4.9-version)
-        (hash (base32 "111rlzx6z4kf8zwxncib96d9wy6qmkbs0cq3dhnybipwlyf1iank")))
+        (hash (base32 "02givxp0y04qma5nlqbpyxdcl7xdb41p3gw7kgj2rmwdanhzaylr")))
     (make-linux-libre-source version
                              (%upstream-linux-source version hash)
                              deblob-scripts-4.9)))
 
-(define-public linux-libre-4.4-version "4.4.243")
+(define-public linux-libre-4.4-version "4.4.244")
 (define deblob-scripts-4.4
   (linux-libre-deblob-scripts
    linux-libre-4.4-version
@@ -428,7 +428,7 @@ (define deblob-scripts-4.4
    (base32 "0hhin1jpfkd6nwrb6xqxjzl3hdxy4pn8a15hy2d3d83yw6pflbsf")))
 (define-public linux-libre-4.4-pristine-source
   (let ((version linux-libre-4.4-version)
-        (hash (base32 "1daqbmj9ka9wdkkym625hqwqaxq5n11y7c4yc9ln3xkjpnv4dplm")))
+        (hash (base32 "0brdj6z7flchig80ja0dhzcrpl743lh74s4r4r6prbgkksif9ahp")))
     (make-linux-libre-source version
                              (%upstream-linux-source version hash)
                              deblob-scripts-4.4)))
@@ -1043,39 +1043,45 @@ (define-public linux-libre-with-bpf
 ;;;
 
 (define-public acpi-call-linux-module
-  (let ((commit "70b9c80bd700e6a4d10797eaac9fd34b7e8cbd4a")
-        (revision "0"))
-    (package
-      (name "acpi-call-linux-module")
-      (version (git-version "3.17" revision commit))
-      (source
-       (origin
-         (method git-fetch)
-         (uri (git-reference
-               (url "https://github.com/teleshoes/acpi_call")
-               (commit commit)))
-         (file-name (git-file-name name version))
-         (sha256
-          (base32 "09c1vw6vcrkqxbwhpgfgpj4d1grzn4qq6ka8pwwzm7cvm405xj7x"))))
-      (build-system linux-module-build-system)
-      (arguments
-       `(#:tests? #f                    ; no tests
-         #:phases
-         (modify-phases %standard-phases
-           (add-after 'install 'install-documentation
-             (lambda* (#:key outputs #:allow-other-keys)
-               (let* ((out (assoc-ref outputs "out"))
-                      (doc (string-append out "/share/doc/" ,name "-" ,version)))
-                 (for-each (lambda (file)
-                             (let ((target (string-append doc "/" file)))
-                               (mkdir-p (dirname target))
-                               (copy-recursively file target)))
-                           (list "README.md" "examples"))
-                 #t))))))
-      (home-page "https://github.com/teleshoes/acpi_call")
-      (synopsis "Linux kernel module to perform ACPI method calls")
-      (description
-       "This simple Linux kernel module allows calls from user space to any
+  (package
+    (name "acpi-call-linux-module")
+    (version "1.2.1")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/nix-community/acpi_call")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "0mr4rjbv6fj4phf038addrgv32940bphghw2v9n1z4awvw7wzkbg"))))
+    (build-system linux-module-build-system)
+    (arguments
+     `(#:tests? #f                      ; no tests
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'install 'patch-shebangs-harder
+           ;; The (only) shebangs in examples/ don't justify a reference.
+           ;; However, do substitute a more portable one than the original.
+           (lambda _
+             (substitute* (find-files "examples" ".")
+               (("^(#! *)/[^ ]*/" _ shebang)
+                (string-append shebang "/usr/bin/env ")))
+             #t))
+         (add-after 'install 'install-documentation
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (doc (string-append out "/share/doc/" ,name "-" ,version)))
+               (for-each (lambda (file)
+                           (let ((target (string-append doc "/" file)))
+                             (mkdir-p (dirname target))
+                             (copy-recursively file target)))
+                         (list "README.md" "examples"))
+               #t))))))
+    (home-page "https://github.com/teleshoes/acpi_call")
+    (synopsis "Linux kernel module to perform ACPI method calls")
+    (description
+     "This simple Linux kernel module allows calls from user space to any
 @acronym{ACPI, Advanced Configuration and Power Interface} method provided by
 your computer's firmware, by writing to @file{/proc/acpi/call}.  You can pass
 any number of parameters of types @code{ACPI_INTEGER}, @code{ACPI_STRING},
@@ -1083,7 +1089,7 @@ (define-public acpi-call-linux-module
 
 It grants direct and undocumented access to your hardware that may cause damage
 and should be used with caution, especially on untested models.")
-      (license license:gpl3+))))        ; see README.md (no licence headers)
+    (license license:gpl3+)))           ; see README.md (no licence headers)
 
 (define-public rtl8812au-aircrack-ng-linux-module
   (let ((commit "df2b8dfd8cb7d9f6cfeb55abaeab8a5372011fc9")
@@ -1367,7 +1373,7 @@ (define-public python-pamela
         ;; Tests not distributed in pypi release.
         (method git-fetch)
         (uri (git-reference
-               (url "https://github.com/minrk/pamela.git")
+               (url "https://github.com/minrk/pamela")
                (commit version)))
         (file-name (git-file-name name version))
         (sha256
@@ -5822,7 +5828,7 @@ (define-public mtd-utils
 (define-public libseccomp
   (package
     (name "libseccomp")
-    (version "2.5.0")
+    (version "2.5.1")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/seccomp/libseccomp/"
@@ -5830,7 +5836,7 @@ (define-public libseccomp
                                   "/libseccomp-" version ".tar.gz"))
               (sha256
                (base32
-                "1wql62cg8f95cwpy057cl764nni9g4sdn5lqj68x22kjs8w71yhz"))))
+                "0m8dlg1v7kflcxvajs4p76p275qwsm2abbf5mfapkakp7hw7wc7f"))))
     (build-system gnu-build-system)
     (arguments
      '(#:configure-flags '("--disable-static")
@@ -7523,7 +7529,7 @@ (define-public bcc
 (define-public bpftrace
   (package
     (name "bpftrace")
-    (version "0.10.0")
+    (version "0.11.4")
     (source
      (origin
        (method git-fetch)
@@ -7532,8 +7538,7 @@ (define-public bpftrace
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
-        (base32
-         "023ardywbw5w8815j2ny9rrp2xlpxndqaa7v2njjm8109p7ilsdn"))
+        (base32 "0y4qgm2cpccrsm20rnh92hqplddqsc5q5zhw9nqn2igm3h9i0z7h"))
        (patches (search-patches "bpftrace-disable-bfd-disasm.patch"))))
     (build-system cmake-build-system)
     (native-inputs
@@ -7575,7 +7580,7 @@ (define-public ttyebus-linux-module
        (origin
          (method git-fetch)
          (uri (git-reference
-               (url "https://github.com/eBUS/ttyebus.git")
+               (url "https://github.com/eBUS/ttyebus")
                (commit "fe4332a2281cf79804ef4d8516aa848ca1c58d1f")))
          (file-name (git-file-name name version))
          (sha256
diff --git a/gnu/packages/lisp-xyz.scm b/gnu/packages/lisp-xyz.scm
index 776865f178..a4e9739c94 100644
--- a/gnu/packages/lisp-xyz.scm
+++ b/gnu/packages/lisp-xyz.scm
@@ -2549,10 +2549,10 @@ (define-public ecl-cl-cffi-gtk
   (sbcl-package->ecl-package sbcl-cl-cffi-gtk))
 
 (define-public sbcl-cl-webkit
-  (let ((commit "04bb5703b68f4db9de71529b81896cc428ef54e1"))
+  (let ((commit "aecd76a2bcc7bfee049c91d94cc75f893800bf37"))
     (package
       (name "sbcl-cl-webkit")
-      (version (git-version "2.4" "8" commit))
+      (version (git-version "2.4" "9" commit))
       (source
        (origin
          (method git-fetch)
@@ -2562,7 +2562,7 @@ (define-public sbcl-cl-webkit
          (file-name (git-file-name "cl-webkit" version))
          (sha256
           (base32
-           "12dzqgkvgwi97r8dbflslj7nsx7p6iavx82fs48nj9wf7ln1c87s"))))
+           "1j2wvn19kz0bcg17qr9pc4xp6fgjy8zngdnnp5rpfxd25sli62yc"))))
       (build-system asdf-build-system/sbcl)
       (inputs
        `(("cffi" ,sbcl-cffi)
diff --git a/gnu/packages/lisp.scm b/gnu/packages/lisp.scm
index 4f79d79207..a3139c21c8 100644
--- a/gnu/packages/lisp.scm
+++ b/gnu/packages/lisp.scm
@@ -1011,3 +1011,40 @@ (define-public picolisp
      (package
        (inherit picolisp32)
        (name "picolisp")))))
+
+(define-public janet
+  (package
+    (name "janet")
+    (version "1.12.2")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/janet-lang/janet")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "0if514zdmbjvvrsa9x5yfvg2b14sz53yaka12g3yhwkq8ls3qk0c"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:make-flags (list
+                     (string-append "DESTDIR=" (assoc-ref %outputs "out"))
+                     (string-append "PREFIX=")
+                     (string-append "CC=" (assoc-ref %build-inputs "gcc")
+                                    "/bin/gcc"))
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)
+         (replace 'check
+           (lambda _
+             (invoke "make" "test"))))))
+    (home-page "https://janet-lang.org/")
+    (synopsis "Functional, imperative and embeddable programming language")
+    (description
+     "Janet is a functional and imperative programming language.  It can be
+used for rapid prototyping, dynamic systems, and other domains where dynamic
+languages shine.  You can also add Janet scripting to an application by
+embedding a single C file and two headers.  It can be easily ported to new
+platforms.  The entire language (core library, interpreter, compiler,
+assembler, PEG) is less than 1MB.")
+    (license license:expat)))
diff --git a/gnu/packages/lxqt.scm b/gnu/packages/lxqt.scm
index 17421a9835..20efba17b7 100644
--- a/gnu/packages/lxqt.scm
+++ b/gnu/packages/lxqt.scm
@@ -1330,7 +1330,7 @@ (define-public lxqt-connman-applet
         (origin
           (method git-fetch)
           (uri (git-reference
-            (url (string-append "https://github.com/lxqt/" name ".git"))
+            (url (string-append "https://github.com/lxqt/" name))
             (commit commit)))
           (file-name (git-file-name name version))
           (sha256 (base32 "0br4bxfrl8k7lq84aq4grznlk8xzzjgkmd19bf9mwjr0a87gg72v"))))
diff --git a/gnu/packages/mail.scm b/gnu/packages/mail.scm
index 1e2dd4035b..5a10194a4a 100644
--- a/gnu/packages/mail.scm
+++ b/gnu/packages/mail.scm
@@ -1447,7 +1447,7 @@ (define-public libetpan
     (source (origin
              (method git-fetch)
              (uri (git-reference
-                   (url  "https://github.com/dinhviethoa/libetpan.git")
+                   (url  "https://github.com/dinhviethoa/libetpan")
                    (commit version)))
              (file-name (git-file-name name version))
              (sha256
diff --git a/gnu/packages/man.scm b/gnu/packages/man.scm
index bc7c011c74..0eadd9d153 100644
--- a/gnu/packages/man.scm
+++ b/gnu/packages/man.scm
@@ -83,7 +83,7 @@ (define-public ronn
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/rtomayko/ronn.git")
+         (url "https://github.com/rtomayko/ronn")
          (commit version)))
        (file-name
         (git-file-name name version))
diff --git a/gnu/packages/messaging.scm b/gnu/packages/messaging.scm
index 0942cd9a32..5dab00140c 100644
--- a/gnu/packages/messaging.scm
+++ b/gnu/packages/messaging.scm
@@ -743,7 +743,8 @@ (define-public gajim
                        (version-major+minor version)
                        "/gajim-" version ".tar.gz"))
        (sha256
-        (base32 "1gfcp3b5nq43xxz5my8vfhfxnnli726j3hzcgwh9fzrzzd9ic3gx"))))
+        (base32 "1gfcp3b5nq43xxz5my8vfhfxnnli726j3hzcgwh9fzrzzd9ic3gx"))
+       (patches (search-patches "gajim-honour-GAJIM_PLUGIN_PATH.patch"))))
     (build-system python-build-system)
     (arguments
      `(#:imported-modules
@@ -756,16 +757,6 @@ (define-public gajim
         (guix build utils))
        #:phases
        (modify-phases %standard-phases
-         (add-after 'unpack 'add-plugin-dirs
-           (lambda _
-             (substitute* "gajim/common/configpaths.py"
-               (("_paths\\['PLUGINS_USER'\\]\\]")
-                "_paths['PLUGINS_USER']] + \
-([os.getenv('GAJIM_PLUGIN_PATH')] \
-if os.getenv('GAJIM_PLUGIN_PATH') \
-and Path(os.getenv('GAJIM_PLUGIN_PATH')).is_dir() \
-else [])"))
-             #t))
          (replace 'check
            (lambda _
              ;; Tests require a running X server.
@@ -859,7 +850,7 @@ (define-public gajim
 (define-public gajim-omemo
   (package
     (name "gajim-omemo")
-    (version "2.7.9")
+    (version "2.6.80")
     (source
      (origin
        (method url-fetch/zipbomb)
@@ -868,7 +859,7 @@ (define-public gajim-omemo
          "https://ftp.gajim.org/plugins_releases/omemo_"
          version ".zip"))
        (sha256
-        (base32 "19si2v5yrxpn2m0f684npsg0iiyl2h3r5hbxyrxv4k3acmfmhb3z"))))
+        (base32 "179hgx091c12258335znn1540jhp4z3n3wv5ksrgqq7l3jgc93d7"))))
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils))
@@ -897,7 +888,7 @@ (define-public gajim-omemo
 (define-public gajim-openpgp
   (package
     (name "gajim-openpgp")
-    (version "1.3.5")
+    (version "1.2.14")
     (source
      (origin
        (method url-fetch/zipbomb)
@@ -906,7 +897,7 @@ (define-public gajim-openpgp
          "https://ftp.gajim.org/plugins_releases/openpgp_"
          version ".zip"))
        (sha256
-        (base32 "1jvpl2gjl5xxvsgxpmvh3mn2mm142dg2hknakkc32swb7l1fqx5m"))))
+        (base32 "0wdjpf1i4pvl4ha4plfpywwi9aw5n2mhrpv8mmbidpawxqfbd94b"))))
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils))
@@ -932,19 +923,19 @@ (define-public dino
   (package
     (name "dino")
     (version "0.2.0")
-    (outputs '("out" "debug"))
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://github.com/dino/dino/releases/download/v"
-                           version "/dino-" version ".tar.gz"))
+       (uri
+        (string-append "https://github.com/dino/dino/releases/download/v"
+                       version "/dino-" version ".tar.gz"))
        (sha256
-        (base32
-         "0iigh7bkil6prf02dqcl6lmd89jxz685h8lqr3ni4x39zkcransn"))))
+        (base32 "0iigh7bkil6prf02dqcl6lmd89jxz685h8lqr3ni4x39zkcransn"))))
     (build-system cmake-build-system)
+    (outputs '("out" "debug"))
     (arguments
      `(#:tests? #f
-       #:parallel-build? #f ; not supported
+       #:parallel-build? #f             ; not supported
        #:modules ((guix build cmake-build-system)
                   ((guix build glib-or-gtk-build-system) #:prefix glib-or-gtk:)
                   (guix build utils))
@@ -955,10 +946,21 @@ (define-public dino
        (modify-phases %standard-phases
          (add-after 'install 'glib-or-gtk-wrap
            (assoc-ref glib-or-gtk:%standard-phases 'glib-or-gtk-wrap)))))
+    (native-inputs
+     `(("gettext" ,gettext-minimal)
+       ("glib:bin" ,glib "bin")
+       ("gtk+:bin" ,gtk+ "bin")
+       ("pkg-config" ,pkg-config)
+       ("vala" ,vala)))
     (inputs
-     `(("libgee" ,libgee)
-       ("libsignal-protocol-c" ,libsignal-protocol-c)
+     `(("glib" ,glib)
+       ("glib-networking" ,glib-networking)
+       ("gpgme" ,gpgme)
+       ("gsettings-desktop-schemas" ,gsettings-desktop-schemas)
+       ("gtk+" ,gtk+)
        ("libgcrypt" ,libgcrypt)
+       ("libgee" ,libgee)
+       ("libsignal-protocol-c" ,libsignal-protocol-c)
        ("libsoup" ,libsoup)
        ("qrencode" ,qrencode)
        ("sqlite" ,sqlite)
@@ -966,15 +968,11 @@ (define-public dino
        ("gtk+" ,gtk+)
        ("glib-networking" ,glib-networking)
        ("gsettings-desktop-schemas" ,gsettings-desktop-schemas)))
-    (native-inputs
-     `(("pkg-config" ,pkg-config)
-       ("glib" ,glib "bin")
-       ("vala" ,vala)
-       ("gettext" ,gettext-minimal)))
+    (synopsis "Graphical Jabber/XMPP Client using GTK+/Vala")
+    (description "Dino is a chat client for the desktop.  It focuses on providing
+a minimal yet reliable Jabber/XMPP experience and having encryption enabled by
+default.")
     (home-page "https://dino.im")
-    (synopsis "Graphical Jabber (XMPP) client")
-    (description "Dino is a Jabber (XMPP) client which aims to fit well into
-a graphical desktop environment like GNOME.")
     (license license:gpl3+)))
 
 (define-public prosody
diff --git a/gnu/packages/music.scm b/gnu/packages/music.scm
index 0728144b60..2ffe435109 100644
--- a/gnu/packages/music.scm
+++ b/gnu/packages/music.scm
@@ -31,6 +31,7 @@
 ;;; Copyright © 2020 Michael Rohleder <mike@rohleder.de>
 ;;; Copyright © 2020 Tanguy Le Carrour <tanguy@bioneland.org>
 ;;; Copyright © 2020 Marius Bakke <marius@gnu.org>
+;;; Copyright © 2019 Riku Viitanen <riku.viitanen0@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -944,6 +945,60 @@ (define-public klick
 you to define complex tempo maps for entire songs or performances.")
     (license license:gpl2+)))
 
+(define-public glyr
+  (package
+    (name "glyr")
+    (version "1.0.10")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/sahib/glyr")
+                    (commit version)))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "1miwbqzkhg0v3zysrwh60pj9sv6ci4lzq2vq2hhc6pc6hdyh8xyr"))))
+    (build-system cmake-build-system)
+    (arguments
+     '(#:configure-flags '("-DTEST=true")
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'patch-tests
+           (lambda _
+             (substitute* "spec/capi/check_api.c"
+               (("fail_unless \\(c != NULL,\"Could not load www.google.de\"\\);")
+                ""))
+             #t))
+         (replace 'check
+           (lambda* (#:key tests? #:allow-other-keys)
+             (when tests?
+               ;; capi tests
+               (invoke "bin/check_api")
+               ;; (invoke "bin/check_opt") TODO Very dependent on the network
+               (invoke "bin/check_dbc"))
+
+             ;; TODO Work out how to run the spec/providers Python tests
+             #t)))))
+    (inputs
+     `(("glib" ,glib)
+       ("curl" ,curl)
+       ("sqlite" ,sqlite)))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)
+       ("check" ,check)))
+    (home-page "https://github.com/sahib/glyr")
+    (synopsis "Search engine for music related metadata")
+    (description
+     "Glyr comes both in a command-line interface tool (@command{glyrc}) and
+as a C library (libglyr).
+
+The sort of metadata glyr is searching (and downloading) is usually the data
+you see in your musicplayer.  And indeed, originally it was written to serve
+as internally library for a musicplayer, but has been extended to work as a
+standalone program which is able to download cover art, lyrics, photos,
+biographies, reviews and more.")
+    (license license:lgpl3+)))
+
 (define-public gtklick
   (package
     (name "gtklick")
@@ -1328,7 +1383,7 @@ (define-public tascam-gtk
       (source (origin
                 (method git-fetch)
                 (uri (git-reference
-                      (url "https://github.com/onkelDead/tascam-gtk.git")
+                      (url "https://github.com/onkelDead/tascam-gtk")
                       (commit commit)))
                 (file-name (git-file-name name version))
                 (sha256
@@ -5097,7 +5152,7 @@ (define-public artyfx
               (method git-fetch)
               (uri (git-reference
                     (url
-                     "https://github.com/openAVproductions/openAV-ArtyFX.git")
+                     "https://github.com/openAVproductions/openAV-ArtyFX")
                     (commit (string-append "release-" version))))
               (file-name (git-file-name name version))
               (sha256
diff --git a/gnu/packages/networking.scm b/gnu/packages/networking.scm
index 8f76ab9d91..ac1290e8fd 100644
--- a/gnu/packages/networking.scm
+++ b/gnu/packages/networking.scm
@@ -349,7 +349,7 @@ (define-public srt
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/Haivision/srt.git")
+         (url "https://github.com/Haivision/srt")
          (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -386,7 +386,7 @@ (define-public srt-1.4.1
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/Haivision/srt.git")
+         (url "https://github.com/Haivision/srt")
          (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -402,7 +402,7 @@ (define-public lksctp-tools
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/sctp/lksctp-tools.git")
+         (url "https://github.com/sctp/lksctp-tools")
          (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -458,7 +458,7 @@ (define-public nng
      (origin
        (method git-fetch)
        (uri (git-reference
-             (url "https://github.com/nanomsg/nng.git")
+             (url "https://github.com/nanomsg/nng")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -501,7 +501,7 @@ (define-public nanomsg
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/nanomsg/nanomsg.git")
+         (url "https://github.com/nanomsg/nanomsg")
          (commit version)))
        (file-name (git-file-name name version))
        (sha256
diff --git a/gnu/packages/ocaml.scm b/gnu/packages/ocaml.scm
index a407a37cfe..706def4f43 100644
--- a/gnu/packages/ocaml.scm
+++ b/gnu/packages/ocaml.scm
@@ -5802,7 +5802,9 @@ (define-public ocaml-cairo2
                 "0wzysis9fa850s68qh8vrvqc6svgllhwra3kzll2ibv0wmdqrich"))))
     (build-system dune-build-system)
     (arguments
-     `(;; FIXME: (got signal SEGV) #44725
+     `(;; NOTE: GC reclaims bigarrays packed into a custom structure
+       ;; regardless of their refcounts. Affects OCaml >= 4.10.x
+       ;; https://github.com/ocaml/ocaml/issues/9360
        #:tests? #f
        #:test-target "tests"))
     (inputs
@@ -5822,7 +5824,7 @@ (define-public ocaml-cairo2
 (define-public lablgtk3
   (package
     (name "lablgtk")
-    (version "3.0.beta8")
+    (version "3.1.1")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -5831,7 +5833,7 @@ (define-public lablgtk3
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "08pgwnia240i2rw1rbgiahg673kwa7b6bvhsg3z4b47xr5sh9pvz"))))
+                "11qfc39cmwfwfpwmjh6wh98zwdv6p73bv8hqwcsss869vs1r7gmn"))))
     (build-system dune-build-system)
     (arguments
      `(#:tests? #t
diff --git a/gnu/packages/openstack.scm b/gnu/packages/openstack.scm
index d0294cdef3..13b92936d0 100644
--- a/gnu/packages/openstack.scm
+++ b/gnu/packages/openstack.scm
@@ -5,6 +5,7 @@
 ;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2020 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -26,6 +27,7 @@ (define-module (gnu packages openstack)
   #:use-module (gnu packages check)
   #:use-module (gnu packages gnupg)
   #:use-module (gnu packages python)
+  #:use-module (gnu packages python-check)
   #:use-module (gnu packages python-crypto)
   #:use-module (gnu packages python-web)
   #:use-module (gnu packages python-xyz)
@@ -45,47 +47,64 @@ (define-module (gnu packages openstack)
 (define-public python-bandit
   (package
     (name "python-bandit")
-    (version "1.4.0")
+    (version "1.6.2")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "bandit" version))
        (sha256
         (base32
-         "1m5bm42120zyazky4k0lp3d9r0jwhjmp6sb108xfr0vz952p15yb"))))
+         "0rb034c99pyhb4a60z7f2kz40cjydhm8m9v2blaal1rmhlam7rs1"))))
     (build-system python-build-system)
     (arguments
-     `(#:phases (modify-phases %standard-phases
-                  (delete 'check)
-                  (add-after 'install 'check
-                    (lambda* (#:key inputs outputs #:allow-other-keys)
-                      ;; Tests require the 'bandit' executable in PATH.
-                      ;; It's only built during install time.
-                      (add-installed-pythonpath inputs outputs)
-                      (setenv "PATH" (string-append (assoc-ref outputs "out")
-                                                    "/bin:" (getenv "PATH")))
-                      (invoke "python" "setup.py" "testr"))))))
+     ;; The tests are disabled to avoid a circular dependency with
+     ;; python-stestr.
+     `(#:tests? #f))
     (propagated-inputs
-      `(("python-gitpython" ,python-gitpython)
-        ("python-pyyaml" ,python-pyyaml)
-        ("python-six" ,python-six)
-        ("python-stevedore" ,python-stevedore)))
+     `(("python-gitpython" ,python-gitpython)
+       ("python-pyyaml" ,python-pyyaml)
+       ("python-six" ,python-six)
+       ("python-stevedore" ,python-stevedore)))
     (native-inputs
-      `(;; Tests.
-        ("python-beautifulsoup4" ,python-beautifulsoup4)
-        ("python-fixtures" ,python-fixtures)
-        ("python-mock" ,python-mock)
-        ("python-subunit" ,python-subunit)
-        ("python-testrepository" ,python-testrepository)
-        ("python-testscenarios" ,python-testscenarios)
-        ("python-testtools" ,python-testtools)))
+     `(("python-pbr" ,python-pbr)))
     (home-page "https://github.com/PyCQA/bandit")
     (synopsis "Security oriented static analyser for python code")
-    (description
-      "Bandit is a tool designed to find common security issues in Python code.
-To do this Bandit processes each file, builds an AST from it, and runs
-appropriate plugins against the AST nodes.  Once Bandit has finished scanning
-all the files it generates a report.")
+    (description "Bandit is a tool designed to find common security issues in
+Python code.  To do this Bandit processes each file, builds an AST from it,
+and runs appropriate plugins against the AST nodes.  Once Bandit has finished
+scanning all the files it generates a report.")
+    (license asl2.0)))
+
+(define-public python-cliff
+  (package
+    (name "python-cliff")
+    (version "3.5.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "cliff" version))
+       (sha256
+        (base32
+         "0n8pzr0mnn9lq2mykds69ij2xrn0fsirh4ndmkx0mzydbx5niysv"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:tests? #f))
+    (native-inputs
+     `(("python-pbr" ,python-pbr)))
+    (propagated-inputs
+     `(("python-cmd2" ,python-cmd2)
+       ("python-prettytable" ,python-prettytable)
+       ("python-pyparsing" ,python-pyparsing)
+       ("python-pyyaml" ,python-pyyaml)
+       ("python-bandit" ,python-bandit)
+       ("python-stevedore" ,python-stevedore)))
+    (home-page "https://opendev.org/openstack/cliff")
+    (synopsis "Framework for building command line programs")
+    (description "The @code{cliff} framework allows creating multi-level
+commands such as those of @command{subversion} and @command{git}, where the
+main program handles some basic argument parsing and then invokes a
+sub-command to do the work.  It uses plugins to define sub-commands, output
+formatters, and other extensions.")
     (license asl2.0)))
 
 (define-public python-debtcollector
@@ -131,39 +150,30 @@ (define-public python2-debtcollector
 (define-public python-hacking
   (package
     (name "python-hacking")
-    (version "1.1.0")
+    (version "4.0.0")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "hacking" version))
        (sha256
         (base32
-         "1vlgh81v4vsw3q3cf7qggsp043vq16knp203lrll82h7l7rhd8r3"))))
+         "062rvbkvbavqqz55f7q00ikwipkn5j0rdls1rrajdbfwgckjcrsm"))))
     (build-system python-build-system)
-    (arguments
-     `(#:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'delete-broken-test
-           (lambda _
-             ;; TODO: Just one test fails:
-             ;; hacking.tests.test_doctest.HackingTestCase.test_pycodestyle
-             ;;   (H403-hacking_docstring_multiline_end-line-5)
-             (delete-file "hacking/tests/test_doctest.py")
-             #t)))))
-    (propagated-inputs
-     `(("python-flake8" ,python-flake8-2.6)
-       ("python-mccabe-0.2.1" ,python-mccabe-0.2.1)
-       ("python-pbr" ,python-pbr)
-       ("python-pep8-1.5.7" ,python-pep8-1.5.7)
-       ("python-pyflakes-1.2" ,python-pyflakes-1.2)
-       ("python-six" ,python-six)))
+     (propagated-inputs
+     `(("python-flake8" ,python-flake8)))
     (native-inputs
      `( ;; Tests
+       ("python-coverage" ,python-coverage)
+       ("python-ddt" ,python-ddt)
+       ("python-dnspython" ,python-dnspython)
+       ("python-fixtures" ,python-fixtures)
        ("python-eventlet" ,python-eventlet)
        ("python-mock" ,python-mock)
-       ("python-reno" ,python-reno)
-       ("python-testrepository" ,python-testrepository)
-       ("python-testscenarios" ,python-testscenarios)))
+       ("python-monotonic" ,python-monotonic)
+       ("python-subunit" ,python-subunit)
+       ("python-stestr" ,python-stestr)
+       ("python-testscenarios" ,python-testscenarios)
+       ("python-testtools" ,python-testtools)))
     (home-page "https://github.com/openstack-dev/hacking")
     (synopsis "OpenStack hacking guideline enforcement")
     (description
@@ -172,9 +182,6 @@ (define-public python-hacking
 guidelines}.")
     (license asl2.0)))
 
-(define-public python2-hacking
-  (package-with-python2 python-hacking))
-
 (define-public python-mox3
   (package
     (name "python-mox3")
@@ -310,22 +317,21 @@ (define-public python2-os-testr
 (define-public python-stevedore
   (package
     (name "python-stevedore")
-    (version "1.28.0")
+    (version "3.2.2")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "stevedore" version))
        (sha256
         (base32
-         "02ynfgwma84g59834dmvzr39mcppy5s229zf1w23c0qngf753izi"))))
+         "1w11lm293afzb73iq0ba9wnmr2rjwymnhr92km4a4xrs7a5qcigq"))))
     (build-system python-build-system)
-    (propagated-inputs
-     `(("python-pbr" ,python-pbr)
-       ("python-six" ,python-six)))
+    (arguments
+     ;; The tests are disabled to avoid a circular dependency with
+     ;; python-stestr.
+     `(#:tests? #f))
     (native-inputs
-     `(("python-mock" ,python-mock)
-       ("python-sphinx" ,python-sphinx)
-       ("python-testrepository" ,python-testrepository)))
+     `(("python-pbr" ,python-pbr)))
     (home-page "https://github.com/dreamhost/stevedore")
     (synopsis "Manage dynamic plugins for Python applications")
     (description
@@ -427,22 +433,33 @@ (define-public python-oslo.config
 (define-public python-oslo.context
   (package
     (name "python-oslo.context")
-    (version "2.20.0")
+    (version "3.1.1")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "oslo.context" version))
        (sha256
         (base32
-         "0iiq9rpwg6wrdqnhf3d8z8g0g7fjhs5zn6qw6igvxplz2c3rbvvx"))))
+         "1l2z186rkd9acrb2ygf53yrdc1lgf7cy1akbhm21kgkzind4p2r6"))))
     (build-system python-build-system)
+    (arguments
+     `(#:phases (modify-phases %standard-phases
+                  (add-after 'unpack 'relax-requirements
+                    (lambda _
+                      (substitute* "test-requirements.txt"
+                        (("hacking>=3.0.1,<3.1.0")
+                         "hacking>=3.0.1"))
+                      #t)))))
     (propagated-inputs
-     `(("python-debtcollector" ,python-debtcollector)
-       ("python-pbr" ,python-pbr)))
+     `(("python-debtcollector" ,python-debtcollector)))
     (native-inputs
-     `(("python-fixtures" ,python-fixtures)
+     `(("python-bandit" ,python-bandit)
+       ("python-coverage" ,python-coverage)
+       ("python-fixtures" ,python-fixtures)
        ("python-hacking" ,python-hacking)
-       ("python-oslotest" ,python-oslotest)))
+       ("python-oslotest" ,python-oslotest)
+       ("python-pbr" ,python-pbr)
+       ("python-stestr" ,python-stestr)))
     (home-page "https://launchpad.net/oslo")
     (synopsis "Oslo context library")
     (description
@@ -600,70 +617,62 @@ (define-public python2-reno
 (define-public python-oslosphinx
   (package
     (name "python-oslosphinx")
-    (version "4.10.0")
+    (version "4.18.0")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "oslosphinx" version))
        (sha256
         (base32
-         "09mxqyabi68f3s3arvdhlhq0mn38vf74jbsfcg84151hcj6czhnl"))))
+         "1xm41857vzrzjmnyi6bqirg4i5qa61v7wxcsdc4q1nzgr3ndgz5k"))))
     (build-system python-build-system)
     (arguments
      `(#:phases
        (modify-phases %standard-phases
-         (replace 'check
+         (add-after 'unpack 'relax-requirements
            (lambda _
-             ;; Note: Upstream tests would have also built the release notes.
-             ;; That only would work if we were in a git checkout.
-             ;; Therefore, we don't do it here.
-             (invoke "python" "setup.py" "build_sphinx"))))))
+             (substitute* "test-requirements.txt"
+               (("hacking!=0.13.0,<0.14,>=0.12.0")
+                "hacking!=0.13.0,>=0.12.0"))
+             #t)))))
     (propagated-inputs
-      `(("python-requests" ,python-requests)))
+     `(("python-requests" ,python-requests)))
     (native-inputs
-      `(("python-pbr" ,python-pbr)
-        ("python-docutils" ,python-docutils)
-        ("python-hacking" ,python-hacking)
-        ("python-sphinx" ,python-sphinx)))
+     `(("python-hacking" ,python-hacking)
+       ("python-openstackdocstheme" ,python-openstackdocstheme)
+       ("python-pbr" ,python-pbr)
+       ("python-reno" ,python-reno)
+       ("python-sphinx" ,python-sphinx)))
     (home-page "https://www.openstack.org/")
     (synopsis "OpenStack sphinx extensions and theme")
-    (description
-      "This package provides themes and extensions for Sphinx documentation
-from the OpenStack project.")
+    (description "This package provides themes and extensions for Sphinx
+documentation from the OpenStack project.")
     (license asl2.0)))
 
-(define-public python2-oslosphinx
-  (package-with-python2 python-oslosphinx))
-
 (define-public python-oslotest
   (package
     (name "python-oslotest")
-    (version "3.4.0")
+    (version "4.4.1")
     (source
-      (origin
-        (method url-fetch)
-        (uri (pypi-uri "oslotest" version))
-        (sha256
-          (base32
-            "1pp8lq61d548cxcqi451czvrz5i5b3hyi2ry00wmngdgiswcqj1h"))))
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "oslotest" version))
+       (sha256
+        (base32
+         "0r50sz55m8ljv2vk1k7sp88iz1iqq4p9w6kb8hn8g8c50r9zdi5i"))))
     (build-system python-build-system)
+    (arguments
+     ;; The tests are disabled to avoid a circular dependency with oslo.config.
+     `(#:tests? #f))
     (propagated-inputs
-      `(("python-fixtures" ,python-fixtures)
-        ("python-mock" ,python-mock)
-        ("python-mox3" ,python-mox3)
-        ("python-os-client-config" ,python-os-client-config)
-        ("python-six" ,python-six)
-        ("python-subunit" ,python-subunit)
-        ("python-testrepository" ,python-testrepository)
-        ("python-testtools" ,python-testtools)))
-    (native-inputs
-      `(("python-pbr" ,python-pbr)
-        ("python-testscenarios" ,python-testscenarios)))
+     `(("python-fixtures" ,python-fixtures)
+       ("python-six" ,python-six)
+       ("python-subunit" ,python-subunit)
+       ("python-testtools" ,python-testtools)))
     (home-page "https://launchpad.net/oslo")
     (synopsis "Oslo test framework")
-    (description
-      "The Oslo Test framework provides common fixtures, support for debugging,
-and better support for mocking results.")
+    (description "The Oslo Test framework provides common fixtures, support
+for debugging, and better support for mocking results.")
     (license asl2.0)))
 
 (define-public python2-oslotest
diff --git a/gnu/packages/package-management.scm b/gnu/packages/package-management.scm
index 84864ded5c..4a6881d475 100644
--- a/gnu/packages/package-management.scm
+++ b/gnu/packages/package-management.scm
@@ -130,8 +130,8 @@ (define-public guix
   ;; Latest version of Guix, which may or may not correspond to a release.
   ;; Note: the 'update-guix-package.scm' script expects this definition to
   ;; start precisely like this.
-  (let ((version "1.2.0rc1")
-        (commit "3ba6ffd0dd092ae879d014e4971989f231eaa56d")
+  (let ((version "1.2.0rc2")
+        (commit "0d4b1afb6bfa4bdeade2cb6409ece9467d513e39")
         (revision 1))
     (package
       (name "guix")
@@ -148,7 +148,7 @@ (define-public guix
                       (commit commit)))
                 (sha256
                  (base32
-                  "1wa67gdipmzqr400hp0cw5ih0rlfvj345h65rqbk9s4g3bkg38hm"))
+                  "1d0pifzrr14f1n0fn21rlh0hzfjvfsavf9as1vcjga47bdjjvrpp"))
                 (file-name (string-append "guix-" version "-checkout"))))
       (build-system gnu-build-system)
       (arguments
@@ -1273,7 +1273,7 @@ (define-public msitools
 (define-public libostree
   (package
     (name "libostree")
-    (version "2020.7")
+    (version "2020.8")
     (source
      (origin
        (method url-fetch)
@@ -1281,7 +1281,7 @@ (define-public libostree
              "https://github.com/ostreedev/ostree/releases/download/v"
              (version-major+minor version) "/libostree-" version ".tar.xz"))
        (sha256
-        (base32 "0clriq2ypz1fycd6mpjyrhzid44svzpzw0amnank593h69b216ax"))))
+        (base32 "16v73v63h16ika73kgh2cvgm0v27r2d48m932mbj3xm6s295kapx"))))
     (build-system gnu-build-system)
     (arguments
      '(#:phases
diff --git a/gnu/packages/parallel.scm b/gnu/packages/parallel.scm
index d65155bbde..2e56fe4c1e 100644
--- a/gnu/packages/parallel.scm
+++ b/gnu/packages/parallel.scm
@@ -55,14 +55,14 @@ (define-module (gnu packages parallel)
 (define-public parallel
   (package
     (name "parallel")
-    (version "20200822")
+    (version "20201022")
     (source
      (origin
       (method url-fetch)
       (uri (string-append "mirror://gnu/parallel/parallel-"
                           version ".tar.bz2"))
       (sha256
-       (base32 "02dy46g6f05p7s2qs8h6yg20p1zl3flxxf77n5jw74l3h1m24m4n"))))
+       (base32 "0qgh3947l854nvh2ylykbyzsflixd2zdi17vmwqm6azn9a32kzim"))))
     (build-system gnu-build-system)
     (arguments
      `(#:phases
diff --git a/gnu/packages/patches/gajim-honour-GAJIM_PLUGIN_PATH.patch b/gnu/packages/patches/gajim-honour-GAJIM_PLUGIN_PATH.patch
new file mode 100644
index 0000000000..cb3313197c
--- /dev/null
+++ b/gnu/packages/patches/gajim-honour-GAJIM_PLUGIN_PATH.patch
@@ -0,0 +1,11 @@
+--- a/gajim/common/configpaths.py	2020-11-19 12:12:02.004414323 +0100
++++ a/gajim/common/configpaths.py	2020-11-19 15:34:52.211476895 +0100
+@@ -47,7 +47,7 @@
+         return [Path(_paths['PLUGINS_BASE']),
+                 Path('/app/plugins')]
+     return [Path(_paths['PLUGINS_BASE']),
+-            Path(_paths['PLUGINS_USER'])]
++            Path(_paths['PLUGINS_USER'])] + ([Path(os.getenv('GAJIM_PLUGIN_PATH'))] if os.getenv('GAJIM_PLUGIN_PATH') and Path(os.getenv('GAJIM_PLUGIN_PATH')).is_dir() else [])
+ 
+ 
+ def get_paths(type_: PathType) -> Generator[str, None, None]:
diff --git a/gnu/packages/patches/xpra-4.0.4-norequests.patch b/gnu/packages/patches/xpra-4.0.4-norequests.patch
deleted file mode 100644
index e545be7f1d..0000000000
--- a/gnu/packages/patches/xpra-4.0.4-norequests.patch
+++ /dev/null
@@ -1,39 +0,0 @@
-Remove python-requests dependency, r27626 upstream.
-
---- a/xpra/net/websockets/common.py	(revision 27625)
-+++ b/xpra/net/websockets/common.py	(revision 27626)
-@@ -7,7 +7,6 @@
- import uuid
- from hashlib import sha1
- from base64 import b64encode
--from requests.structures import CaseInsensitiveDict
- 
- from xpra.os_util import strtobytes, bytestostr, monotonic_time
- from xpra.log import Logger
-@@ -77,7 +76,7 @@
-     for line in lines:
-         parts = line.split(b": ", 1)
-         if len(parts)==2:
--            headers[parts[0]] = parts[1]
-+            headers[parts[0].lower()] = parts[1]
-     return headers
- 
- def verify_response_headers(headers, key):
-@@ -84,14 +83,13 @@
-     log("verify_response_headers(%s)", headers)
-     if not headers:
-         raise Exception("no http headers found in response")
--    headers = CaseInsensitiveDict(headers)
--    upgrade = headers.get(b"Upgrade", b"")
-+    upgrade = headers.get(b"upgrade", b"")
-     if upgrade!=b"websocket":
-         raise Exception("invalid http upgrade: '%s'" % upgrade)
--    protocol = headers.get(b"Sec-WebSocket-Protocol", b"")
-+    protocol = headers.get(b"sec-websocket-protocol", b"")
-     if protocol!=b"binary":
-         raise Exception("invalid websocket protocol: '%s'" % protocol)
--    accept_key = headers.get(b"Sec-WebSocket-Accept", b"")
-+    accept_key = headers.get(b"sec-websocket-accept", b"")
-     if not accept_key:
-         raise Exception("websocket accept key is missing")
-     expected_key = make_websocket_accept_hash(key)
diff --git a/gnu/packages/python-check.scm b/gnu/packages/python-check.scm
index dcd4bb90d8..e3d2da9b59 100644
--- a/gnu/packages/python-check.scm
+++ b/gnu/packages/python-check.scm
@@ -28,6 +28,7 @@
 (define-module (gnu packages python-check)
   #:use-module (gnu packages)
   #:use-module (gnu packages check)
+  #:use-module (gnu packages openstack)
   #:use-module (gnu packages python-web)
   #:use-module (gnu packages python-xyz)
   #:use-module (gnu packages web)
@@ -82,6 +83,39 @@ (define-public python-coveralls
 nosetests, etc...) in Python projects.")
     (license license:expat)))
 
+(define-public python-junit-xml
+  ;; XXX: There are no tags or PyPI releases, so take the latest commit
+  ;; and use the version defined in setup.py.
+  (let ((version "1.9")
+        (commit "4bd08a272f059998cedf9b7779f944d49eba13a6")
+        (revision "0"))
+    (package
+      (name "python-junit-xml")
+      (version (git-version version revision commit))
+      (home-page "https://github.com/kyrus/python-junit-xml")
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference (url home-page) (commit commit)))
+                (file-name (git-file-name name version))
+                (sha256
+                 (base32
+                  "0b8kbjhk3j10rk0vcniy695m3h43yip6y93h1bd6jjh0cp7s09c7"))))
+      (build-system python-build-system)
+      (arguments
+       `(#:phases (modify-phases %standard-phases
+                    (replace 'check
+                      (lambda _
+                        (invoke "pytest" "-vv"))))))
+      (native-inputs
+       `(("python-pytest" ,python-pytest)))
+      (propagated-inputs
+       `(("python-six" ,python-six)))
+      (synopsis "Create JUnit XML test results")
+      (description
+       "This package provides a Python module for creating JUnit XML test
+result documents that can be read by tools such as Jenkins or Bamboo.")
+      (license license:expat))))
+
 (define-public python-vcrpy
   (package
     (name "python-vcrpy")
@@ -1078,3 +1112,36 @@ (define-public python-robber
     (description "Robber is a Python assertion library for test-driven and
 behavior-driven development (TDD and BDD).")
     (license license:expat)))
+
+(define-public python-stestr
+  (package
+    (name "python-stestr")
+    (version "3.0.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "stestr" version))
+       (sha256
+        (base32
+         "0adhqp9c9338wlvlq776k57k04lyxp38bv591afdm9gjsn2qn1zm"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:tests? #f))                    ;to avoid circular dependencies
+    (native-inputs
+     `(("python-pbr" ,python-pbr)))
+    (propagated-inputs
+     `(("python-cliff" ,python-cliff)
+       ("python-fixtures" ,python-fixtures)
+       ("python-future" ,python-future)
+       ("python-pyyaml" ,python-pyyaml)
+       ("python-subunit" ,python-subunit)
+       ("python-testtools" ,python-testtools)
+       ("python-voluptuous" ,python-voluptuous)))
+    (home-page "https://stestr.readthedocs.io/en/latest/")
+    (synopsis "Parallel Python test runner")
+    (description "This package provides the @command{stestr} command, a
+parallel Python test runner built around @code{subunit}.  It is designed to
+execute @code{unittest} test suites using multiple processes to split up
+execution of a test suite.  It will also store a history of all test runs to
+help in debugging failures and optimizing the scheduler to improve speed.")
+    (license license:asl2.0)))
diff --git a/gnu/packages/python-crypto.scm b/gnu/packages/python-crypto.scm
index 0cee05cb09..6f3dbbf9f2 100644
--- a/gnu/packages/python-crypto.scm
+++ b/gnu/packages/python-crypto.scm
@@ -74,7 +74,7 @@ (define-public python-potr
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/python-otr/pure-python-otr.git")
+         (url "https://github.com/python-otr/pure-python-otr")
          (commit version)))
        (file-name
         (git-file-name name version))
diff --git a/gnu/packages/python-web.scm b/gnu/packages/python-web.scm
index e0d474c151..2ccb41fe3a 100644
--- a/gnu/packages/python-web.scm
+++ b/gnu/packages/python-web.scm
@@ -4,7 +4,7 @@
 ;;; Copyright © 2017 Christopher Baines <mail@cbaines.net>
 ;;; Copyright © 2016, 2017 Danny Milosavljevic <dannym+a@scratchpost.org>
 ;;; Copyright © 2013, 2014, 2015, 2016, 2020 Andreas Enge <andreas@enge.fr>
-;;; Copyright © 2016, 2017, 2020 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2016, 2017, 2019, 2020 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2015, 2016, 2017, 2018, 2019, 2020 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2017 Roel Janssen <roel@gnu.org>
 ;;; Copyright © 2016, 2017, 2020 Julien Lepiller <julien@lepiller.eu>
@@ -68,6 +68,7 @@ (define-module (gnu packages python-web)
   #:use-module (gnu packages curl)
   #:use-module (gnu packages databases)
   #:use-module (gnu packages django)
+  #:use-module (gnu packages graphviz)
   #:use-module (gnu packages groff)
   #:use-module (gnu packages libevent)
   #:use-module (gnu packages libffi)
@@ -76,6 +77,7 @@ (define-module (gnu packages python-web)
   #:use-module (gnu packages python-check)
   #:use-module (gnu packages python-compression)
   #:use-module (gnu packages python-crypto)
+  #:use-module (gnu packages python-science)
   #:use-module (gnu packages python-xyz)
   #:use-module (gnu packages serialization)
   #:use-module (gnu packages sphinx)
@@ -276,6 +278,158 @@ (define-public python-css-html-js-minify
     ;; looks like the user can choose a license.
     (license (list license:gpl3+ license:lgpl3+ license:expat))))
 
+(define-public python-aws-sam-translator
+  (package
+    (name "python-aws-sam-translator")
+    (version "1.30.1")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "aws-sam-translator" version))
+              (sha256
+               (base32
+                "0d9ppd94x2kw404m49ajswmmxgdngbs4p5ajyrdvnlivfzqbv7dx"))))
+    (build-system python-build-system)
+    (arguments
+     `(;; XXX: Tests are not distributed with the PyPI archive, and would
+       ;; introduce a circular dependency on python-cfn-lint.
+       #:tests? #f
+       #:phases (modify-phases %standard-phases
+                  (add-after 'unpack 'loosen-requirements
+                    (lambda _
+                      ;; The package needlessly specifies exact versions
+                      ;; of dependencies, when it works fine with others.
+                      (substitute* "requirements/base.txt"
+                        (("(.*)(~=[0-9\\.]+)" all package version)
+                         package))
+                      #t)))))
+    (propagated-inputs
+     `(("python-boto3" ,python-boto3)
+       ("python-jsonschema" ,python-jsonschema)
+       ("python-six" ,python-six)))
+    (home-page "https://github.com/awslabs/serverless-application-model")
+    (synopsis "Transform AWS SAM templates into AWS CloudFormation templates")
+    (description
+     "AWS SAM Translator is a library that transform @dfn{Serverless Application
+Model} (SAM) templates into AWS CloudFormation templates.")
+    (license license:asl2.0)))
+
+(define-public python-aws-xray-sdk
+  (package
+    (name "python-aws-xray-sdk")
+    (version "2.6.0")
+    (home-page "https://github.com/aws/aws-xray-sdk-python")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference (url home-page) (commit version)))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "12fzr0ylpa1lx3xr1x2f1jx8iiyzcr6g57fb9jign0j0lxdlbzpv"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:phases (modify-phases %standard-phases
+                  (add-after 'unpack 'disable-tests
+                    (lambda _
+                      (for-each delete-file
+                                '(;; These tests require packages not yet in Guix.
+                                  "tests/ext/aiobotocore/test_aiobotocore.py"
+                                  "tests/ext/aiohttp/test_middleware.py"
+                                  "tests/ext/pg8000/test_pg8000.py"
+                                  "tests/ext/psycopg2/test_psycopg2.py"
+                                  "tests/ext/pymysql/test_pymysql.py"
+                                  "tests/ext/pynamodb/test_pynamodb.py"
+                                  "tests/test_async_recorder.py"
+
+                                  ;; FIXME: Why is this failing?
+                                  "tests/test_patcher.py"
+
+                                  ;; TODO: How to configure Django for these tests.
+                                  "tests/ext/django/test_db.py"
+                                  "tests/ext/django/test_middleware.py"
+
+                                  ;; These tests want to access httpbin.org.
+                                  "tests/ext/requests/test_requests.py"
+                                  "tests/ext/httplib/test_httplib.py"
+                                  "tests/ext/aiohttp/test_client.py"))))
+                  (replace 'check
+                    (lambda _
+                      (setenv "PYTHONPATH"
+                              (string-append "./build/lib:.:"
+                                             (getenv "PYTHONPATH")))
+                      (invoke "pytest" "-vv" "tests"))))))
+    (native-inputs
+     `(;; These are required for the test suite.
+       ("python-bottle" ,python-bottle)
+       ("python-flask" ,python-flask)
+       ("python-flask-sqlalchemy" ,python-flask-sqlalchemy)
+       ("python-pymysql" ,python-pymysql)
+       ("python-pytest" ,python-pytest)
+       ("python-pytest-aiohttp" ,python-pytest-aiohttp)
+       ("python-requests" ,python-requests)
+       ("python-sqlalchemy" ,python-sqlalchemy)
+       ("python-webtest" ,python-webtest)))
+    (propagated-inputs
+     `(("python-aiohttp" ,python-aiohttp)
+       ("python-botocore" ,python-botocore)
+       ("python-future" ,python-future)
+       ("python-jsonpickle" ,python-jsonpickle)
+       ("python-urllib3" ,python-urllib3)
+       ("python-wrapt" ,python-wrapt)))
+    (synopsis "Profile applications on AWS X-Ray")
+    (description
+     "The AWS X-Ray SDK for Python enables Python developers to record and
+emit information from within their applications to the AWS X-Ray service.")
+    (license license:asl2.0)))
+
+(define-public python-cfn-lint
+  (package
+    (name "python-cfn-lint")
+    (version "0.41.0")
+    (home-page "https://github.com/aws-cloudformation/cfn-python-lint")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url home-page)
+                    (commit (string-append "v" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "0nqs0fmj3hd7pnd9hkb4z57jvi2iv82hh6n3xxba6i6p8zgx75q4"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:phases (modify-phases %standard-phases
+                  (replace 'check
+                    (lambda* (#:key outputs #:allow-other-keys)
+                      (let ((out (assoc-ref outputs "out")))
+                        ;; Remove test for the documentation update scripts
+                        ;; to avoid a dependency on 'git'.
+                        (delete-file
+                         "test/unit/module/maintenance/test_update_documentation.py")
+                        (setenv "PYTHONPATH"
+                                (string-append "./build/lib:"
+                                               (getenv "PYTHONPATH")))
+                        (setenv "PATH" (string-append out "/bin:"
+                                                      (getenv "PATH")))
+                        (invoke "python" "-m" "unittest" "discover"
+                                "-s" "test")))))))
+    (native-inputs
+     `(("python-pydot" ,python-pydot)
+       ("python-mock" ,python-mock)))
+    (propagated-inputs
+     `(("python-aws-sam-translator" ,python-aws-sam-translator)
+       ("python-jsonpatch" ,python-jsonpatch)
+       ("python-jsonschema" ,python-jsonschema)
+       ("python-junit-xml" ,python-junit-xml)
+       ("python-networkx" ,python-networkx)
+       ("python-pyyaml" ,python-pyyaml)
+       ("python-six" ,python-six)))
+    (synopsis "Validate CloudFormation templates")
+    (description
+     "This package lets you validate CloudFormation YAML/JSON templates against
+the CloudFormation spec and additional checks.  Includes checking valid values
+for resource properties and best practices.")
+    (license license:expat)))
+
 (define-public python-falcon
   (package
     (name "python-falcon")
@@ -460,14 +614,14 @@ (define-public httpie
 (define-public python-html2text
   (package
     (name "python-html2text")
-    (version "2019.8.11")
+    (version "2020.1.16")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "html2text" version))
        (sha256
         (base32
-         "0ppgjplg06kmv9sj0x8p7acczcq2mcfgk1jdjwm4w5w40b0vj5pm"))))
+         "1fvv4z6dblii2wk1x82981ag8yhxbim1v2ksgywxsndh2s7335p2"))))
     (build-system python-build-system)
     (arguments
      '(#:phases
@@ -485,7 +639,94 @@ (define-public python-html2text
     (license license:gpl3+)))
 
 (define-public python2-html2text
-  (package-with-python2 python-html2text))
+  (let ((base (package-with-python2 python-html2text)))
+    (package
+      (inherit base)
+      ;; This is the last version with support for Python 2.
+      (version "2019.8.11")
+      (source (origin
+                (method url-fetch)
+                (uri (pypi-uri "html2text" version))
+                (sha256
+                 (base32
+                  "0ppgjplg06kmv9sj0x8p7acczcq2mcfgk1jdjwm4w5w40b0vj5pm")))))))
+
+(define-public python-jose
+  (package
+    (name "python-jose")
+    (version "3.2.0")
+    (home-page "http://github.com/mpdavis/python-jose")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference (url home-page) (commit version)))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "1xmnf8whzv2gnkkdv0fqcn9qwmcc7y647p4kw9fi3lvcp9kch8vi"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (replace 'check
+           (lambda* (#:key tests? #:allow-other-keys)
+             (if tests?
+                 (invoke "pytest" "-vv")
+                 (format #t "test suite not run~%"))
+             #t)))))
+    (native-inputs
+     `(;; All native inputs are for tests.
+       ("python-pyasn1" ,python-pyasn1)
+       ("python-pytest" ,python-pytest)
+       ("python-pytest-cov" ,python-pytest-cov)
+       ("python-pytest-runner" ,python-pytest-runner)))
+    (propagated-inputs
+     `(("python-cryptography" ,python-cryptography)
+       ("python-rsa" ,python-rsa)
+       ("python-six" ,python-six)))
+    (synopsis "JOSE implementation in Python")
+    (description
+     "The @dfn{JavaScript Object Signing and Encryption} (JOSE) technologies
+- JSON Web Signature (JWS), JSON Web Encryption (JWE), JSON Web Key (JWK), and
+JSON Web Algorithms (JWA) - collectively can be used to encrypt and/or sign
+content using a variety of algorithms.")
+    (license license:expat)))
+
+(define-public python-jsonpickle
+  (package
+    (name "python-jsonpickle")
+    (version "1.4.1")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "jsonpickle" version))
+              (sha256
+               (base32
+                "1fn86z468hamw8njh2grw2xdhsm7g48dyxs3lw0n10nn1g6vgm78"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:phases (modify-phases %standard-phases
+                  (replace 'check
+                    (lambda _
+                      (setenv "PYTHONPATH"
+                              (string-append "./build/lib:"
+                                             (getenv "PYTHONPATH")))
+                      (invoke "pytest" "-vv"
+                              ;; Prevent running the flake8 and black
+                              ;; pytest plugins, which only tests style
+                              ;; and frequently causes harmless failures.
+                              "-o" "addopts=''"))))))
+    (native-inputs
+     `(("python-setuptools-scm" ,python-setuptools-scm)
+       ("python-toml" ,python-toml)  ;XXX: for setuptools_scm[toml]
+       ;; For tests.
+       ("python-numpy" ,python-numpy)
+       ("python-pandas" ,python-pandas)
+       ("python-pytest" ,python-pytest)))
+    (home-page "https://jsonpickle.github.io/")
+    (synopsis "Serialize object graphs into JSON")
+    (description
+     "This package provides a Python library for serializing any arbitrary
+object graph to and from JSON.")
+    (license license:bsd-3)))
 
 (define-public python-mechanicalsoup
   (package
@@ -712,6 +953,30 @@ (define-public python-flask-babel
 (define-public python2-flask-babel
   (package-with-python2 python-flask-babel))
 
+(define-public python-flask-cors
+  (package
+    (name "python-flask-cors")
+    (version "3.0.9")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "Flask-Cors" version))
+              (sha256
+               (base32
+                "1f36hkaxc92zn12f88fkzwifdvlvsnmlp1dv3p5inpcc500c3kvb"))))
+    (build-system python-build-system)
+    (native-inputs
+     `(("python-flask" ,python-flask)
+       ("python-nose" ,python-nose)
+       ("python-packaging" ,python-packaging)))
+    (propagated-inputs
+     `(("python-six" ,python-six)))
+    (home-page "https://flask-cors.readthedocs.io/en/latest/")
+    (synopsis "Handle Cross-Origin Resource Sharing with Flask")
+    (description
+     "This package provides a Flask extension for handling @acronym{CORS,Cross
+Origin Resource Sharing}, making cross-origin AJAX possible.")
+    (license license:expat)))
+
 (define-public python-html5lib
   (package
     (name "python-html5lib")
@@ -788,6 +1053,41 @@ (define-public python-html5-parser
 (define-public python2-html5-parser
   (package-with-python2 python-html5-parser))
 
+(define-public python-minio
+  (package
+    (name "python-minio")
+    (version "6.0.0")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "minio" version))
+              (sha256
+               (base32
+                "1cxpa0m7mdvpdbc1g6wlihq6ja4g4paxkl6f3q84bbnx07zpbllp"))))
+    (build-system python-build-system)
+    (arguments
+     '(#:phases (modify-phases %standard-phases
+                  (add-before 'check 'disable-failing-tests
+                    (lambda _
+                      ;; This test requires network access.
+                      (delete-file "tests/unit/credentials_test.py")
+                      #t)))))
+    (native-inputs
+     `(("python-faker" ,python-faker)
+       ("python-mock" ,python-mock)
+       ("python-nose" ,python-nose)))
+    (propagated-inputs
+     `(("python-certifi" ,python-certifi)
+       ("python-configparser" ,python-configparser)
+       ("python-dateutil" ,python-dateutil)
+       ("python-pytz" ,python-pytz)
+       ("python-urllib3" ,python-urllib3)))
+    (home-page "https://github.com/minio/minio-py")
+    (synopsis "Programmatically access Amazon S3 from Python")
+    (description
+     "This package provides a Python library for interacting with any
+Amazon S3 compatible object storage server.")
+    (license license:asl2.0)))
+
 (define-public python-pycurl
   (package
     (name "python-pycurl")
@@ -1013,6 +1313,49 @@ (define-public python-cssselect
 (define-public python2-cssselect
   (package-with-python2 python-cssselect))
 
+(define-public python-databricks-cli
+  (package
+    (name "python-databricks-cli")
+    (version "0.14.0")
+    (home-page "https://github.com/databricks/databricks-cli")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference (url home-page) (commit version)))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "0imwpfda2pxix1rx0nlqs48v58icfw065nsv53rpg0dw4bw9x2wi"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:phases (modify-phases %standard-phases
+                  (replace 'check
+                    (lambda _
+                      (setenv "PYTHONPATH"
+                              (string-append "./build/lib:"
+                                             (getenv "PYTHONPATH")))
+                      (invoke "pytest" "tests" "-vv"
+                              ;; XXX: This fails with newer Pytest
+                              ;; (upstream uses Pytest 3..).
+                              "-k" "not test_get_request_with_list"))))))
+    (native-inputs
+     `(;; For tests.
+       ("python-decorator" ,python-decorator)
+       ("python-mock" ,python-mock)
+       ("python-pytest" ,python-pytest)
+       ("python-requests-mock" ,python-requests-mock)))
+    (propagated-inputs
+     `(("python-click" ,python-click)
+       ("python-configparser" ,python-configparser)
+       ("python-requests" ,python-requests)
+       ("python-six" ,python-six)
+       ("python-tabulate" ,python-tabulate)))
+    (synopsis "Command line interface for Databricks")
+    (description
+     "The Databricks Command Line Interface is a tool which provides an easy
+to use interface to the Databricks platform.  The CLI is built on top of the
+Databricks REST APIs.")
+    (license license:asl2.0)))
+
 (define-public python-openid-cla
   (package
     (name "python-openid-cla")
@@ -1163,6 +1506,37 @@ (define-public python-hypercorn
 utilise asyncio, uvloop, or trio worker types.")
     (license license:expat)))
 
+(define-public python-querystring-parser
+  (package
+    (name "python-querystring-parser")
+    (version "1.2.4")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "querystring_parser" version))
+              (sha256
+               (base32
+                "0qlar8a0wa003hm2z6wcpb625r6vjj0a70rsni9h8lz0zwfcwkv4"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:phases (modify-phases %standard-phases
+                  (replace 'check
+                    (lambda _
+                      ;; XXX FIXME: This test is broken with Python 3.7:
+                      ;; https://github.com/bernii/querystring-parser/issues/35
+                      (substitute* "querystring_parser/tests.py"
+                        (("self\\.assertEqual\\(self\\.knownValuesNormalized, result\\)")
+                         "True"))
+                      (invoke "python" "querystring_parser/tests.py"))))))
+    (propagated-inputs
+     `(("python-six" ,python-six)))
+    (home-page "https://github.com/bernii/querystring-parser")
+    (synopsis "QueryString parser that correctly handles nested dictionaries")
+    (description
+     "This package provides a query string parser for Python and Django
+projects that correctly creates nested dictionaries from sent form/querystring
+data.")
+    (license license:expat)))
+
 (define-public python-tornado
   (package
     (name "python-tornado")
@@ -2283,15 +2657,16 @@ (define-public python2-urllib3
 
 (define-public awscli
   (package
+    ;; Note: updating awscli typically requires updating botocore as well.
     (name "awscli")
-    (version "1.18.6")
+    (version "1.18.183")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri name version))
        (sha256
         (base32
-         "0p479mfs9r0m82a217pap8156ijwvhv6r3kqa4k267gd05wgvygm"))))
+         "0n1pmdl33r1v8qnrcg08ihvri9zm4fvsp14605vwmlkxvs8nb7s5"))))
     (build-system python-build-system)
     (arguments
      ;; FIXME: The 'pypi' release does not contain tests.
@@ -2789,13 +3164,13 @@ (define-public python2-betamax-matchers
 (define-public python-s3transfer
   (package
     (name "python-s3transfer")
-    (version "0.2.0")
+    (version "0.3.3")
     (source (origin
               (method url-fetch)
               (uri (pypi-uri "s3transfer" version))
               (sha256
                (base32
-                "08fhj73b1ai52hrs2q3nggshq3pswn1gq8ch3m009cb2v2vmqggj"))))
+                "1nzp5kwmy9669334shcz9ipg89jgpdqhrmbkgdg18r7wmvi3f6lj"))))
     (build-system python-build-system)
     (arguments
      `(#:phases
diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index c3624784e9..2f270d1b3e 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -91,6 +91,7 @@
 ;;; Copyright © 2020 Ekaitz Zarraga <ekaitz@elenq.tech>
 ;;; Copyright © 2020 Diego N. Barbato <dnbarbato@posteo.de>
 ;;; Copyright © 2020 Leo Prikler <leo.prikler@student.tugraz.at>
+;;; Copyright © 2019 Kristian Trandem <kristian@devup.no>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -122,6 +123,7 @@ (define-module (gnu packages python-xyz)
   #:use-module (gnu packages crypto)
   #:use-module (gnu packages databases)
   #:use-module (gnu packages dbm)
+  #:use-module (gnu packages docker)
   #:use-module (gnu packages enchant)
   #:use-module (gnu packages file)
   #:use-module (gnu packages fontutils)
@@ -3933,6 +3935,30 @@ (define-public python-rst.linker
 (define-public python2-rst.linker
   (package-with-python2 python-rst.linker))
 
+(define-public python-sshpubkeys
+  (package
+    (name "python-sshpubkeys")
+    (version "3.1.0")
+    (home-page "https://github.com/ojarva/python-sshpubkeys")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url home-page)
+                    (commit (string-append "v" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "1h4gwmcfn84kkqh83km1vfz8sc5kr2g4gzgzmr8gz704jmqiv7nq"))))
+    (build-system python-build-system)
+    (propagated-inputs
+     `(("python-cryptography" ,python-cryptography)
+       ("python-ecdsa" ,python-ecdsa)))
+    (synopsis "OpenSSH public key parser")
+    (description
+     "This package provides a library for parsing and validating OpenSSH
+public key files.")
+    (license license:bsd-3)))
+
 (define-public python-feedgenerator
   (package
     (name "python-feedgenerator")
@@ -5636,14 +5662,14 @@ (define-public python2-olefile
 (define-public python-pillow
   (package
     (name "python-pillow")
-    (version "6.2.1")
+    (version "8.0.1")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "Pillow" version))
        (sha256
         (base32
-         "1c8wkzc58f5wdh006jvmwdk3wxld1xgagcbdvj7iv17qi0m9fkmz"))))
+         "17pv0flaqqfld9m4lz8ayxyqb11gbbmr7w04mw4ar79cn3lwdi8i"))))
     (build-system python-build-system)
     (native-inputs
      `(("python-pytest" ,python-pytest)))
@@ -5683,12 +5709,24 @@ (define-public python-pillow
 capabilities.  The core image library is designed for fast access to data
 stored in a few basic pixel formats.  It should provide a solid foundation for
 a general image processing tool.")
+    (properties `((python2-variant . ,(delay python2-pillow))))
     (license (license:x11-style
               "http://www.pythonware.com/products/pil/license.htm"
               "The PIL Software License"))))
 
 (define-public python2-pillow
-  (package-with-python2 python-pillow))
+  (package-with-python2
+   (package
+     (inherit (strip-python2-variant python-pillow))
+     ;; Version 6 is the last series with Python 2 support.
+     (version "6.2.2")
+     (source
+      (origin
+        (method url-fetch)
+        (uri (pypi-uri "Pillow" version))
+        (sha256
+         (base32
+          "0l5rv8jkdrb5q846v60v03mcq64yrhklidjkgwv6s1pda71g17yv")))))))
 
 (define-public python-pillow-2.9
   (package
@@ -8148,27 +8186,6 @@ (define-public python-pyflakes
 (define-public python2-pyflakes
   (package-with-python2 python-pyflakes))
 
-;; Flake8 2.6 requires an older version of pyflakes.
-;; This should be removed ASAP.
-(define-public python-pyflakes-1.2
-  (package (inherit python-pyflakes)
-    (version "1.2.3")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (pypi-uri "pyflakes" version))
-       (sha256
-        (base32
-         "17hkw8yd44cr8fz13phy4aih3r5j2p7ild4zlvqdh2c8dmiinjif"))))
-    (arguments
-     '(#:phases
-       (modify-phases %standard-phases
-         ;; This one test fails.
-         (replace 'check
-           (lambda _ (invoke "pytest" "-vv" "-k" "not test_f_string"))))))
-    (native-inputs
-     `(("python-pytest" ,python-pytest)))))
-
 (define-public python-mccabe
   (package
     (name "python-mccabe")
@@ -8194,39 +8211,6 @@ (define-public python-mccabe
 (define-public python2-mccabe
   (package-with-python2 python-mccabe))
 
-(define-public python-mccabe-0.2.1
-  (package (inherit python-mccabe)
-    (version "0.2.1")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (pypi-uri "mccabe" version))
-        (sha256
-          (base32
-            "0fi4a81kr5bcv5p4xgibqr595hyj5dafkqgsmfk96mfy8w71fajs"))))))
-
-(define-public python2-mccabe-0.2.1
-  (package-with-python2 python-mccabe-0.2.1))
-
-;; Flake8 2.4.1 requires an older version of pep8.
-;; This should be removed ASAP.
-(define-public python-pep8-1.5.7
-  (package (inherit python-pep8)
-    (version "1.5.7")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (pypi-uri "pep8" version))
-       (sha256
-        (base32
-         "12b9bbdbwnspxgak14xg58c130x2n0blxzlms5jn2dszn8qj3d0m"))))
-    (arguments
-     ;; XXX Tests not compatible with Python 3.5.
-     '(#:tests? #f))))
-
-(define-public python2-pep8-1.5.7
-  (package-with-python2 python-pep8-1.5.7))
-
 (define-public python-flake8
   (package
     (name "python-flake8")
@@ -8273,40 +8257,6 @@ (define-public python2-flake8
          ("python2-typing" ,python2-typing)
           ,@(package-propagated-inputs base))))))
 
-;; python-hacking requires flake8 <2.7.0.
-(define-public python-flake8-2.6
-  (package
-    (inherit python-flake8)
-    (version "2.6.2")
-    (source (origin
-              (method url-fetch)
-              (uri (pypi-uri "flake8" version))
-              (sha256
-               (base32
-                "0y57hzal0j84dh9i1g1g6dc4aywvrnhy2fjmmbglpv5ajihxh713"))))
-    (arguments
-     `(#:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'use-later-pycodestyles
-           (lambda __
-             (substitute* '("flake8.egg-info/requires.txt"
-                            "setup.py")
-               (("pycodestyle >= 2.0, < 2.1")
-                "pycodestyle >= 2.0"))
-             #t))
-         (delete 'check)
-         (add-after 'install 'check
-           (lambda* (#:key inputs outputs #:allow-other-keys)
-             (add-installed-pythonpath inputs outputs)
-             (invoke "pytest" "-v")
-             #t)))))
-    (propagated-inputs
-     `(("python-pep8" ,python-pep8)
-       ("python-pycodestyle" ,python-pycodestyle)
-       ("python-entrypoints" ,python-entrypoints)
-       ("python-pyflakes" ,python-pyflakes-1.2)
-       ("python-mccabe" ,python-mccabe)))))
-
 (define-public python-flake8-bugbear
   (package
     (name "python-flake8-bugbear")
@@ -8734,6 +8684,26 @@ (define-public python-appdirs
 (define-public python2-appdirs
   (package-with-python2 python-appdirs))
 
+(define-public python-gorilla
+  (package
+    (name "python-gorilla")
+    (version "0.3.0")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "gorilla" version))
+              (sha256
+               (base32
+                "0b40blcp6fih4nvqbilra4qw1dfccv1ahjmr41ac4d9rjadqkcpy"))))
+    (build-system python-build-system)
+    (home-page "https://github.com/christophercrouzet/gorilla")
+    (synopsis "Convenient monkey patching with Python")
+    (description
+     "Gorilla is a Python library that provides a convenient approach to
+monkey patching.  Monkey patching is the process of modifying module and
+class attributes at runtime with the purpose of replacing or extending
+third-party code.")
+    (license license:expat)))
+
 (define-public python-llfuse
   (package
     (name "python-llfuse")
@@ -10922,6 +10892,73 @@ (define-public python-colorama
 (define-public python2-colorama
   (package-with-python2 python-colorama))
 
+(define-public python-moto
+  (package
+    (name "python-moto")
+    ;; XXX: Use a pre-release for compatibility with latest botocore & friends.
+    (version "1.3.16.dev134")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "moto" version))
+              (sha256
+               (base32
+                "1pix0c7zszjwzfy88n1rpih9vkdm25nqcvz93z850xvgwb4v81bd"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:phases (modify-phases %standard-phases
+                  (add-after 'unpack 'patch-hardcoded-executable-names
+                    (lambda _
+                      (substitute* "moto/batch/models.py"
+                        (("/bin/sh")
+                         (which "sh")))
+                      (substitute* (find-files "tests" "\\.py$")
+                        (("#!/bin/bash")
+                         (string-append "#!" (which "bash"))))
+                      #t))
+                  (replace 'check
+                    (lambda _
+                      (setenv "PYTHONPATH" (string-append "./build/lib:"
+                                                          (getenv "PYTHONPATH")))
+                      (invoke "pytest" "-vv" "-m" "not network"
+                              ;; These tests require Docker.
+                              "-k" "not test_terminate_job \
+and not test_invoke_function_from_sqs_exception"))))))
+    (native-inputs
+     `(("python-flask" ,python-flask)
+       ("python-flask-cors" ,python-flask-cors)
+       ("python-freezegun" ,python-freezegun)
+       ("python-parameterized" ,python-parameterized)
+       ("python-pytest" ,python-pytest)
+       ("python-sure" ,python-sure)))
+    (propagated-inputs
+     `(("python-aws-xray-sdk" ,python-aws-xray-sdk)
+       ("python-boto" ,python-boto)
+       ("python-boto3" ,python-boto3)
+       ("python-botocore" ,python-botocore)
+       ("python-cfn-lint" ,python-cfn-lint)
+       ("python-cryptography" ,python-cryptography)
+       ("python-dateutil" ,python-dateutil)
+       ("python-docker" ,python-docker)
+       ("python-idna" ,python-idna)
+       ("python-jinja2" ,python-jinja2)
+       ("python-jose" ,python-jose)
+       ("python-jsondiff" ,python-jsondiff)
+       ("python-mock" ,python-mock)
+       ("python-pytz" ,python-pytz)
+       ("python-pyyaml" ,python-pyyaml)
+       ("python-requests" ,python-requests)
+       ("python-responses" ,python-responses)
+       ("python-six" ,python-six)
+       ("python-sshpubkeys" ,python-sshpubkeys)
+       ("python-werkzeug" ,python-werkzeug)
+       ("python-xmltodict" ,python-xmltodict)))
+    (home-page "https://github.com/spulec/moto")
+    (synopsis "Mock out the boto library")
+    (description
+     "@code{moto} is a library designed to easily mock out the
+@code{boto} library.")
+    (license license:asl2.0)))
+
 (define-public python-rsa
   (package
    (name "python-rsa")
@@ -11077,32 +11114,55 @@ (define-public python-symengine
 manipulation library.")
     (license license:expat)))
 
+(define-public python-boto
+  (package
+    (name "python-boto")
+    (version "2.49.0")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "boto" version))
+              (sha256
+               (base32
+                "0njy09c4wjx7ipxhwi6vv404nflyiasl78vwwxxpclnql903n3ga"))))
+    (build-system python-build-system)
+    (arguments
+     ;; XXX: This package is unmaintained and has problems with newer versions
+     ;; of Python 3 as well as test libraries.  'python-moto' still uses a
+     ;; subset of this library, so keep it around for now, but disable tests.
+     '(#:tests? #f))
+    (propagated-inputs
+     `(("python-paramiko" ,python-paramiko)
+       ("python-requests" ,python-requests)))
+    (home-page "https://github.com/boto/boto")
+    (synopsis "Python interfaces for Amazon Web Services")
+    (description
+     "This package provides various facilities for interacting with Amazon
+Web Services through Python.
+
+This software is unmaintained, and new projects should use @code{boto3} instead.")
+    (license license:expat)))
+
 (define-public python-botocore
+  ;; Note: When updating botocore, also make sure that boto3 and awscli
+  ;; are compatible.
   (package
     (name "python-botocore")
-    (version "1.15.26")
+    (version "1.19.22")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "botocore" version))
        (sha256
         (base32
-         "1a87pbwkk5vlwz92hy1wizfnpiwn11bhaicr6bmji1i5ybwdhnr8"))))
+         "0iim86x7c6hqmvd61ygz6x6x9glnsfbnyzv2y67qjdcdx8jpkmw7"))))
     (build-system python-build-system)
     (arguments
      ;; FIXME: Many tests are failing.
      '(#:tests? #f))
     (propagated-inputs
      `(("python-dateutil" ,python-dateutil)
-       ("python-docutils" ,python-docutils)
-       ("python-jmespath" ,python-jmespath)))
-    (native-inputs
-     `(("python-mock" ,python-mock)
-       ("python-nose" ,python-nose)
-       ("behave" ,behave)
-       ("python-tox" ,python-tox)
-       ("python-urllib3" ,python-urllib3)
-       ("python-wheel" ,python-wheel)))
+       ("python-jmespath" ,python-jmespath)
+       ("python-urllib3" ,python-urllib3)))
     (home-page "https://github.com/boto/botocore")
     (synopsis "Low-level interface to AWS")
     (description "Botocore is a Python library that provides a low-level
@@ -11112,6 +11172,40 @@ (define-public python-botocore
 (define-public python2-botocore
   (package-with-python2 python-botocore))
 
+(define-public python-boto3
+  (package
+    (name "python-boto3")
+    (version "1.16.22")
+    (home-page "https://github.com/boto/boto3")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference (url home-page) (commit version)))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "0h20hgl4yfl58g75qhb6ibrdmzn47md3srgar7hask14cjmfhfy3"))))
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'delete-network-tests
+           ;; Deleting integration tests because they are trying to connect to AWS.
+	   (lambda _
+	     (delete-file-recursively "tests/integration")
+	     #t)))))
+    (build-system python-build-system)
+    (native-inputs
+     `(("python-nose" ,python-nose)
+       ("python-mock" ,python-mock)))
+    (propagated-inputs
+     `(("python-botocore" ,python-botocore)
+       ("python-jmespath" ,python-jmespath)
+       ("python-s3transfer" ,python-s3transfer)))
+    (synopsis "AWS SDK for Python")
+    (description
+     "Boto3 is a Python library for writing programs that interact with
+@acronym{AWS,Amazon Web Services}.")
+    (license license:asl2.0)))
+
 (define-public python-pyfiglet
   (package
     (name "python-pyfiglet")
@@ -14719,22 +14813,20 @@ (define-public python2-ansi2html
 (define-public python-ddt
   (package
     (name "python-ddt")
-    (version "1.1.3")
+    (version "1.4.1")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "ddt" version))
        (sha256
         (base32
-         "1lw17420iimhghkgzgax85nn8d1an2d6k2cfvb7j5kwn2dqlr1vk"))))
+         "1niqpzc26sxdbyi46r07n4pma5fjx6crww2539vpfmsf0w6yg585"))))
     (build-system python-build-system)
     (native-inputs
-     `(("python-mock" ,python-mock)
-       ("python-nose" ,python-nose)))
+     `(("python-pytest" ,python-pytest)))
     (propagated-inputs
-     `(("python-six" ,python-six)
-       ("python-pyyaml" ,python-pyyaml)))
-    (home-page "https://github.com/txels/ddt")
+     `(("python-pyyaml" ,python-pyyaml)))
+    (home-page "https://github.com/datadriventests/ddt")
     (synopsis "Data-Driven Tests")
     (description
      "Data-Driven Tests (@dfn{DDT}) allow you to multiply one test case by
@@ -14742,9 +14834,6 @@ (define-public python-ddt
 cases.")
     (license license:expat)))
 
-(define-public python2-ddt
-  (package-with-python2 python-ddt))
-
 (define-public python-pycountry
   (package
     (name "python-pycountry")
@@ -16038,7 +16127,7 @@ (define-public python-jsonpatch
         (base32
          "0k9pff06lxama3nhsc7cdxbp83422bdy8ifs52i6xkas8hpyzfzr"))))
     (build-system python-build-system)
-    (native-inputs
+    (propagated-inputs
      `(("python-jsonpointer" ,python-jsonpointer)))
     (home-page "https://github.com/stefankoegl/python-json-patch")
     (synopsis "Applying JSON Patches in Python 2.6+ and 3.x")
diff --git a/gnu/packages/qt.scm b/gnu/packages/qt.scm
index aabbdc308f..2e621e758c 100644
--- a/gnu/packages/qt.scm
+++ b/gnu/packages/qt.scm
@@ -1566,7 +1566,7 @@ (define-public qtspell
      (origin
        (method git-fetch)
        (uri (git-reference
-             (url "https://github.com/manisandro/qtspell.git")
+             (url "https://github.com/manisandro/qtspell")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
diff --git a/gnu/packages/raspberry-pi.scm b/gnu/packages/raspberry-pi.scm
index 7700c26d06..cdea392fc7 100644
--- a/gnu/packages/raspberry-pi.scm
+++ b/gnu/packages/raspberry-pi.scm
@@ -76,7 +76,7 @@ (define raspi-gpio
       (source (origin
                 (method git-fetch)
                 (uri (git-reference
-                      (url "https://github.com/RPi-Distro/raspi-gpio.git")
+                      (url "https://github.com/RPi-Distro/raspi-gpio")
                       (commit commit)))
                 (file-name (git-file-name name version))
                 (sha256
@@ -98,7 +98,7 @@ (define %rpi-open-firmware-origin
   (origin
    (method git-fetch)
    (uri (git-reference
-         (url "https://github.com/librerpi/rpi-open-firmware.git")
+         (url "https://github.com/librerpi/rpi-open-firmware")
          (commit "6be45466e0be437a1b0b3512a86f3d9627217006")))
    (file-name "rpi-open-firmware-checkout")
    (sha256
diff --git a/gnu/packages/rdesktop.scm b/gnu/packages/rdesktop.scm
index 0fc63e8675..30523deefe 100644
--- a/gnu/packages/rdesktop.scm
+++ b/gnu/packages/rdesktop.scm
@@ -87,7 +87,7 @@ (define-public freerdp
      (origin
        (method git-fetch)
        (uri (git-reference
-             (url "git://github.com/FreeRDP/FreeRDP.git")
+             (url "git://github.com/FreeRDP/FreeRDP")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
diff --git a/gnu/packages/ruby.scm b/gnu/packages/ruby.scm
index fafa7436a0..8fc228f6ed 100644
--- a/gnu/packages/ruby.scm
+++ b/gnu/packages/ruby.scm
@@ -1349,7 +1349,7 @@ (define-public ruby-prawn-templates
      (origin
        (method git-fetch)
        (uri (git-reference
-             (url "https://github.com/prawnpdf/prawn-templates.git")
+             (url "https://github.com/prawnpdf/prawn-templates")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
@@ -1411,7 +1411,7 @@ (define-public ruby-treetop
      (origin
        (method git-fetch)               ;no test suite in distributed gem
        (uri (git-reference
-             (url "https://github.com/cjheath/treetop.git")
+             (url "https://github.com/cjheath/treetop")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -1474,7 +1474,7 @@ (define-public ruby-gimme
        (origin
          (method git-fetch)
          (uri (git-reference
-               (url "https://github.com/searls/gimme.git")
+               (url "https://github.com/searls/gimme")
                (commit commit)))
          (file-name (git-file-name name version))
          (sha256
@@ -1535,7 +1535,7 @@ (define-public ruby-standard
      (origin
        (method git-fetch)               ;no test suite in distributed gem
        (uri (git-reference
-             (url "https://github.com/testdouble/standard.git")
+             (url "https://github.com/testdouble/standard")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -1587,7 +1587,7 @@ (define-public ruby-chunky-png
      (origin
        (method git-fetch)
        (uri (git-reference
-             (url "https://github.com/wvanbergen/chunky_png.git")
+             (url "https://github.com/wvanbergen/chunky_png")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -1705,7 +1705,7 @@ (define-public ruby-asciidoctor-pdf
        (origin
          (method git-fetch)      ;no test suite in the distributed gem
          (uri (git-reference
-               (url "https://github.com/asciidoctor/asciidoctor-pdf.git")
+               (url "https://github.com/asciidoctor/asciidoctor-pdf")
                (commit commit)))
          (file-name (git-file-name name version))
          (sha256
@@ -6824,7 +6824,7 @@ (define-public ruby-rubocop-ast
      (origin
        (method git-fetch)               ;no test suite in distributed gem
        (uri (git-reference
-             (url "https://github.com/rubocop-hq/rubocop-ast.git")
+             (url "https://github.com/rubocop-hq/rubocop-ast")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -6868,7 +6868,7 @@ (define-public ruby-rexml
      (origin
        (method git-fetch)               ;no tests in distributed gem
        (uri (git-reference
-             (url "https://github.com/ruby/rexml.git")
+             (url "https://github.com/ruby/rexml")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -6919,7 +6919,7 @@ (define-public ruby-range-compressor
       (origin
         (method git-fetch)
         (uri (git-reference
-              (url "https://github.com/janosch-x/range_compressor.git")
+              (url "https://github.com/janosch-x/range_compressor")
               (commit (string-append "v" version))))
         (file-name (git-file-name name version))
         (sha256
@@ -6952,7 +6952,7 @@ (define-public ruby-regexp-property-values
      (origin
        (method git-fetch)
        (uri (git-reference              ;no test suite in distributed gem
-             (url "https://github.com/jaynetics/regexp_property_values.git")
+             (url "https://github.com/jaynetics/regexp_property_values")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -6983,7 +6983,7 @@ (define-public ruby-regexp-parser
      (origin
        (method git-fetch)               ;bin/test missing from gem
        (uri (git-reference
-             (url "https://github.com/ammar/regexp_parser.git")
+             (url "https://github.com/ammar/regexp_parser")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -7056,7 +7056,7 @@ (define-public ruby-rubocop
      (origin
        (method git-fetch)               ;no tests in distributed gem
        (uri (git-reference
-             (url "https://github.com/rubocop-hq/rubocop.git")
+             (url "https://github.com/rubocop-hq/rubocop")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -10536,7 +10536,7 @@ (define-public ruby-pdf-reader
     (source (origin
               (method git-fetch)        ;no test in distributed gem archive
               (uri (git-reference
-                    (url "https://github.com/yob/pdf-reader.git")
+                    (url "https://github.com/yob/pdf-reader")
                     (commit (string-append "v" version))))
               (file-name (git-file-name name version))
               (sha256
@@ -10576,7 +10576,7 @@ (define-public ruby-pdf-inspector
       (source (origin
                 (method git-fetch)
                 (uri (git-reference
-                      (url "https://github.com/prawnpdf/pdf-inspector.git")
+                      (url "https://github.com/prawnpdf/pdf-inspector")
                       (commit commit)))
                 (file-name (git-file-name name version))
                 (sha256
@@ -10639,7 +10639,7 @@ (define-public ruby-prawn
       (source (origin
                 (method git-fetch)
                 (uri (git-reference
-                      (url "https://github.com/prawnpdf/prawn.git")
+                      (url "https://github.com/prawnpdf/prawn")
                       (commit commit)))
                 (file-name (git-file-name name version))
                 (sha256
diff --git a/gnu/packages/rust-apps.scm b/gnu/packages/rust-apps.scm
index fabb4e0380..004f71ae8d 100644
--- a/gnu/packages/rust-apps.scm
+++ b/gnu/packages/rust-apps.scm
@@ -73,13 +73,7 @@ (define-public exa
         ("rust-zoneinfo-compiled" ,rust-zoneinfo-compiled-0.4))
        #:cargo-development-inputs
        (("rust-datetime" ,rust-datetime-0.4))
-       #:phases
        (modify-phases %standard-phases
-         (add-after 'configure 'dont-vendor-sources
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((openssl (assoc-ref inputs "openssl")))
-               (setenv "OPENSSL_DIR" openssl))
-             #t))
          ;; Ignoring failing tests.
          ;; Reported in https://github.com/ogham/exa/issues/318
          (add-before 'check 'disable-failing-tests
@@ -393,18 +387,12 @@ (define-public tokei
         ("rust-lazy-static" ,rust-lazy-static-1)
         ("rust-regex" ,rust-regex-1)
         ("rust-serde-json" ,rust-serde-json-1)
-        ("rust-tempfile" ,rust-tempfile-3))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'configure 'unvendor-libraries-from-crates
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((openssl (assoc-ref inputs "openssl")))
-               (setenv "OPENSSL_DIR" openssl))
-             #t)))))
+        ("rust-tempfile" ,rust-tempfile-3))))
     (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
      `(("libgit2" ,libgit2)
        ("openssl" ,openssl)
-       ("pkg-config" ,pkg-config)
        ("zlib" ,zlib)))
     (home-page "https://tokei.rs")
     (synopsis "Count code, quickly")
diff --git a/gnu/packages/scheme.scm b/gnu/packages/scheme.scm
index 38e4079a09..bd77b3e808 100644
--- a/gnu/packages/scheme.scm
+++ b/gnu/packages/scheme.scm
@@ -408,7 +408,7 @@ (define-public racket
                           version "/racket-" version "-src.tgz")))
               (sha256
                (base32
-                "18pz6gjzqy6a62xkcmjanhr7kgxpvpmc0blrk4igz8ldcybz44if"))
+                "0gmp2ahmfd97nn9bwpfx9lznjmjkd042slnrrbdmyh59cqh98y2m"))
               (patches (search-patches
                         "racket-store-checksum-override.patch"))))
     (build-system gnu-build-system)
diff --git a/gnu/packages/shellutils.scm b/gnu/packages/shellutils.scm
index b1db32a3dc..181a640475 100644
--- a/gnu/packages/shellutils.scm
+++ b/gnu/packages/shellutils.scm
@@ -278,7 +278,7 @@ (define-public fzy
 (define-public hstr
   (package
     (name "hstr")
-    (version "2.2")
+    (version "2.3")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -287,7 +287,7 @@ (define-public hstr
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "07fkilqlkpygvf9kvxyvl58g3lfq0bwwdp3wczy4hk8qlbhmgihn"))))
+                "1chmfdi1dwg3sarzd01nqa82g65q7wdr6hrnj96l75vikwsg986y"))))
     (build-system gnu-build-system)
     (arguments
      `(#:phases
diff --git a/gnu/packages/simulation.scm b/gnu/packages/simulation.scm
index a95160c1c1..45efd5c472 100644
--- a/gnu/packages/simulation.scm
+++ b/gnu/packages/simulation.scm
@@ -684,17 +684,13 @@ (define-public fenics
              (with-directory-excursion "test"
                ;; Note: The test test_snes_set_from_options() in the file
                ;; unit/nls/test_PETScSNES_solver.py fails and is ignored.
-               (and (invoke "py.test" "unit" "--ignore"
-                            "unit/nls/test_PETScSNES_solver.py")
-                    (invoke "mpirun" "-np" "3" "python" "-B" "-m"
-                            "pytest" "unit" "--ignore"
-                            "unit/nls/test_PETScSNES_solver.py")))
-             (with-directory-excursion "demo"
-               ;; Check demos.
-               (invoke "python" "generate-demo-files.py")
-               (and (invoke "python" "-m" "pytest" "-v" "test.py")
-                    (invoke "python" "-m" "pytest" "-v" "test.py"
-                            "--mpiexec=mpiexec" "--num-proc=3")))
+               ;; Limit the number of jobs to 3 as 500 MiB of memory is used
+               ;; per process.
+               (invoke "mpirun" "-np" (number->string
+                                       (min 3 (parallel-job-count)))
+                       "python" "-B" "-m"
+                       "pytest" "unit" "--ignore"
+                       "unit/nls/test_PETScSNES_solver.py"))
              #t))
          (add-after 'install 'install-demo-files
            (lambda* (#:key outputs #:allow-other-keys)
diff --git a/gnu/packages/storage.scm b/gnu/packages/storage.scm
index e1549c1728..48944d3b72 100644
--- a/gnu/packages/storage.scm
+++ b/gnu/packages/storage.scm
@@ -55,14 +55,14 @@ (define-module (gnu packages storage)
 (define-public ceph
   (package
     (name "ceph")
-    (version "14.2.13")
+    (version "14.2.14")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://download.ceph.com/tarballs/ceph-"
                                   version ".tar.gz"))
               (sha256
                (base32
-                "0gaxjs909wf00nvh4z53cin89dw67v1q47b2jvi3iibynhkahkg1"))
+                "10ma8qimgspz1q3lqb4yl990l9xa87iwd0r4dxl5xg89w6j7qwix"))
               (patches
                (search-patches "ceph-disable-cpu-optimizations.patch"))
               (modules '((guix build utils)))
diff --git a/gnu/packages/syncthing.scm b/gnu/packages/syncthing.scm
index 434e236054..7e479a0d39 100644
--- a/gnu/packages/syncthing.scm
+++ b/gnu/packages/syncthing.scm
@@ -195,7 +195,7 @@ (define-public syncthing-gtk
     (source (origin
               (method git-fetch)
               (uri (git-reference
-                    (url "https://github.com/syncthing/syncthing-gtk.git")
+                    (url "https://github.com/syncthing/syncthing-gtk")
                     (commit (string-append "v" version))))
               (file-name (git-file-name name version))
               (sha256
diff --git a/gnu/packages/tls.scm b/gnu/packages/tls.scm
index c4420978b8..00b0bf6ddb 100644
--- a/gnu/packages/tls.scm
+++ b/gnu/packages/tls.scm
@@ -352,7 +352,13 @@ (define-public openssl
                            ((string-prefix? "arm" target)
                             "linux-armv4")
                            ((string-prefix? "aarch64" target)
-                            "linux-aarch64")))
+                            "linux-aarch64")
+                           ((string-prefix? "powerpc64le" target)
+                            "linux-ppc64le")
+                           ((string-prefix? "powerpc64" target)
+                            "linux-ppc64")
+                           ((string-prefix? "powerpc" target)
+                            "linux-ppc")))
                  #t)))
            '())
         (replace 'configure
diff --git a/gnu/packages/video.scm b/gnu/packages/video.scm
index 21380a9677..e58be3b274 100644
--- a/gnu/packages/video.scm
+++ b/gnu/packages/video.scm
@@ -286,7 +286,7 @@ (define-public svt-hevc
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/OpenVisualCloud/SVT-HEVC.git")
+         (url "https://github.com/OpenVisualCloud/SVT-HEVC")
          (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -314,7 +314,7 @@ (define-public mediasdk
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/Intel-Media-SDK/MediaSDK.git")
+         (url "https://github.com/Intel-Media-SDK/MediaSDK")
          (commit (string-append "intel-" name "-" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -490,7 +490,7 @@ (define-public libvideogfx
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/farindk/libvideogfx.git")
+         (url "https://github.com/farindk/libvideogfx")
          (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -534,7 +534,7 @@ (define-public libde265
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/strukturag/libde265.git")
+         (url "https://github.com/strukturag/libde265")
          (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
@@ -575,7 +575,7 @@ (define-public tslib
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/libts/tslib.git")
+         (url "https://github.com/libts/tslib")
          (commit version)))
        (file-name (git-file-name name version))
        (sha256
@@ -2188,14 +2188,14 @@ (define-public libvpx
 (define-public youtube-dl
   (package
     (name "youtube-dl")
-    (version "2020.11.17")
+    (version "2020.11.21.1")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://youtube-dl.org/downloads/latest/"
                                   "youtube-dl-" version ".tar.gz"))
               (sha256
                (base32
-                "0b0vsmvnm2jn1k66jmymzly0nb34nk79z97msns0sw0cqhbld1b2"))))
+                "0a9livib328z5j3kfndxys2193dvfs4hh38krx0idg0k26xp7cfl"))))
     (build-system python-build-system)
     (arguments
      ;; The problem here is that the directory for the man page and completion
@@ -3799,7 +3799,7 @@ (define-public atomicparsley
 (define-public livemedia-utils
   (package
     (name "livemedia-utils")
-    (version "2020.11.05")
+    (version "2020.11.19")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -3807,7 +3807,7 @@ (define-public livemedia-utils
                     version ".tar.gz"))
               (sha256
                (base32
-                "1dx5imjil5yiya5dqlvbqkvzgic5pybsfilx5jz1cpi1znkzpgc9"))))
+                "16w6yxdbmjdhvffnrb752dn4llf3l0wb00dgdkyia0vqsv2qqyn7"))))
     (build-system gnu-build-system)
     (arguments
      `(#:tests? #f                      ; no tests
diff --git a/gnu/packages/vim.scm b/gnu/packages/vim.scm
index 236bb97cbe..cda1e144ec 100644
--- a/gnu/packages/vim.scm
+++ b/gnu/packages/vim.scm
@@ -70,7 +70,7 @@ (define-module (gnu packages vim)
 (define-public vim
   (package
     (name "vim")
-    (version "8.2.1980")
+    (version "8.2.2017")
     (source (origin
              (method git-fetch)
              (uri (git-reference
@@ -79,7 +79,7 @@ (define-public vim
              (file-name (git-file-name name version))
              (sha256
               (base32
-               "1l1bb4lhlivgvj4jaxkibdkcg6rh1gk80d6ni41kphyrir7xahja"))))
+               "0ad0c4wv8zf28wns06k82c19rs63ilsphnglajhgw5j2a1aqplyn"))))
     (build-system gnu-build-system)
     (arguments
      `(#:test-target "test"
@@ -110,7 +110,7 @@ (define-public vim
              ;; Make sure the TERM environment variable is set for the tests
              (setenv "TERM" "xterm")
              #t))
-         (add-before 'check 'skip-failing-tests
+         (add-before 'check 'skip-or-fix-failing-tests
            (lambda _
              ;; This test assumes that PID 1 is run as root and that the user
              ;; running the test suite does not have permission to kill(1, 0)
@@ -121,16 +121,36 @@ (define-public vim
              (substitute* "src/testdir/test_swap.vim"
                (("if !IsRoot\\(\\)") "if 0"))
 
-             ;; These tests check how the terminal looks after executing some
-             ;; actions.  The path of the bash binary is shown, which results in
-             ;; a difference being detected.  Patching the expected result is
-             ;; non-trivial due to the special format used, so skip the test.
-             (substitute* "src/testdir/test_terminal.vim"
-               ((".*Test_terminal_postponed_scrollback.*" line)
-                (string-append line "return\n")))
+             ;; These tests compares output against a golden ‘…/|b|i|n|/|s|h…’
+             ;; literal.  We need to match that and substitute a similarly
+             ;; ‘spliced’ path to ‘sh’ in the store, truncated to the last
+             ;; 44 (spliced: 88) or so characters.
+             ;; Two of the tests we simply skip instead of patching the screen dump.
              (substitute* "src/testdir/test_popupwin.vim"
-               ((".*Test_popup_drag_termwin.*" line)
-                (string-append line "return\n")))
+               ((".*Test_popupwin_term_0[1|2].*") ""))
+             ;; We replace the external program call (!) with a scroll-back (<)
+             ;; symbol and blindly fix some other differences based on error output.
+             (let ((splice (lambda (s separator)
+                               (string-join (map string (string->list s))
+                                            separator))))
+               (substitute* "src/testdir/dumps/Test_terminal_from_cmd.dump"
+                 (((splice "/bin/sh" "\\|"))
+                  (splice (string-take-right (which "sh") 44) "|"))
+                 (("^\\|!") "|<")
+                 (("@37") ""))
+               (substitute* '("src/testdir/dumps/Test_terminal_scrollback_1.dump"
+                              "src/testdir/dumps/Test_terminal_scrollback_2.dump")
+                 (((splice "/bin/sh" "\\|"))
+                  (splice (string-take-right (which "sh") 61) "|"))
+                 (("^\\|!") "|<")
+                 ((" @55") " @1"))
+               (substitute* '("src/testdir/dumps/Test_terminal_scrollback_3.dump"
+                              "src/testdir/dumps/Test_popupwin_term_03.dump"
+                              "src/testdir/dumps/Test_popupwin_term_04.dump")
+                 (((splice "/bin/sh" "\\|"))
+                  (splice (string-take-right (which "sh") 62) "|"))
+                 (("^\\|!") "|<")
+                 (("\\]\\| @56") "]| @1")))
              #t)))))
     (inputs
      `(("gawk" ,gawk)
diff --git a/gnu/packages/web.scm b/gnu/packages/web.scm
index 40e1b94230..f1c4143a59 100644
--- a/gnu/packages/web.scm
+++ b/gnu/packages/web.scm
@@ -1424,7 +1424,7 @@ (module "tidy")
 (define-public esbuild
   (package
     (name "esbuild")
-    (version "0.8.7")
+    (version "0.8.11")
     (source
      (origin
        (method git-fetch)
@@ -1434,7 +1434,7 @@ (define-public esbuild
        (file-name (git-file-name name version))
        (sha256
         (base32
-         "14x95dmh4jrfp93p7ln0cv917qxll04sqzlpf9rl6w01fifr2s75"))
+         "18cp68jds8cq58hpcwh85cgvh5vlkjfdcpwqp5h754065j896rr3"))
        (modules '((guix build utils)))
        (snippet
         '(begin
diff --git a/gnu/packages/xfce.scm b/gnu/packages/xfce.scm
index a21679a4d1..02e8093ddf 100644
--- a/gnu/packages/xfce.scm
+++ b/gnu/packages/xfce.scm
@@ -787,6 +787,7 @@ (define-public xfdesktop
                                           "/tmp/final.jpg")
                                   (copy-file "/tmp/final.jpg" image))
                                 '(;; "backgrounds/xfce-blue.jpg"
+                                  "backgrounds/xfce-stripes.png"
                                   "backgrounds/xfce-teal.jpg"))
                       #t)))
 
diff --git a/gnu/packages/xml.scm b/gnu/packages/xml.scm
index ef0ae25e13..1db3c2ead1 100644
--- a/gnu/packages/xml.scm
+++ b/gnu/packages/xml.scm
@@ -25,6 +25,7 @@
 ;;; Copyright © 2020 Paul Garlick <pgarlick@tourbillion-technology.com>
 ;;; Copyright © 2020 Edouard Klein <edk@beaver-labs.com>
 ;;; Copyright © 2020 Brett Gilio <brettg@gnu.org>
+;;; Copyright © 2020 Pierre Langlois <pierre.langlois@gmx.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -84,7 +85,7 @@ (define-public libxmlb
        (method git-fetch)
        (uri
         (git-reference
-         (url "https://github.com/hughsie/libxmlb.git")
+         (url "https://github.com/hughsie/libxmlb")
          (commit version)))
        (file-name (git-file-name name version))
        (sha256
@@ -218,7 +219,7 @@ (define-public libxmlplusplus
     (source (origin
              (method git-fetch)
              (uri (git-reference
-                   (url "https://github.com/libxmlplusplus/libxmlplusplus.git")
+                   (url "https://github.com/libxmlplusplus/libxmlplusplus")
                    (commit version)))
              (file-name (git-file-name name version))
              (sha256
@@ -278,7 +279,7 @@ (define-public libxmlplusplus-2.6
     (source (origin
              (method git-fetch)
              (uri (git-reference
-                   (url "https://github.com/libxmlplusplus/libxmlplusplus.git")
+                   (url "https://github.com/libxmlplusplus/libxmlplusplus")
                    (commit version)))
              (file-name (git-file-name name version))
              (sha256
@@ -1260,7 +1261,15 @@ (define-public xmlstarlet
            (substitute* "Makefile"
              (("^examples/schema1\\\\") "\\")
              (("^examples/valid1\\\\") "\\"))
-           #t)))))
+           #t))
+       (add-after 'install 'symlink-xmlstarlet
+         (lambda* (#:key outputs #:allow-other-keys)
+           ;; Other distros usually either rename or symlink the `xml' binary
+           ;; as `xmlstarlet', let's do it as well for compatibility.
+           (let* ((out (assoc-ref outputs "out"))
+                  (bin (string-append out "/bin")))
+             (symlink "xml" (string-append bin "/xmlstarlet"))
+             #t))))))
    (inputs
     `(("libxslt" ,libxslt)
       ("libxml2" ,libxml2)))
diff --git a/gnu/packages/xorg.scm b/gnu/packages/xorg.scm
index 224ce981b9..4b8bd5b8f7 100644
--- a/gnu/packages/xorg.scm
+++ b/gnu/packages/xorg.scm
@@ -6270,16 +6270,15 @@ (define-public xcompmgr
 (define-public xpra
   (package
     (name "xpra")
-    (version "4.0.4")
+    (version "4.0.5")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "https://www.xpra.org/src/xpra-"
                            version ".tar.xz"))
        (sha256
-        (base32 "10alqdfmgml9ixdi1nyd9xlw8a5q0j8m2sv4g9p83pd6z1a0rpv2"))
-       (patches (search-patches "xpra-4.0.1-systemd-run.patch"
-                                "xpra-4.0.4-norequests.patch"))))
+        (base32 "11ml66z8vbc0fa567kkmp2j20l5l60aflnkrz5ay8arw3w92nmnz"))
+       (patches (search-patches "xpra-4.0.1-systemd-run.patch"))))
     (build-system python-build-system)
     ;; see also http://xpra.org/trac/wiki/Dependencies
     (inputs `(
diff --git a/gnu/services/base.scm b/gnu/services/base.scm
index 065e89d312..029df5ac16 100644
--- a/gnu/services/base.scm
+++ b/gnu/services/base.scm
@@ -62,7 +62,8 @@ (define-module (gnu services base)
   #:use-module (srfi srfi-26)
   #:use-module (ice-9 match)
   #:use-module (ice-9 format)
-  #:re-export (user-processes-service-type)       ;backwards compatibility
+  #:re-export (user-processes-service-type        ;backwards compatibility
+               %default-substitute-urls)
   #:export (fstab-service-type
             root-file-system-service
             file-system-service-type
diff --git a/gnu/services/cups.scm b/gnu/services/cups.scm
index 7d2defacaa..e8957c6859 100644
--- a/gnu/services/cups.scm
+++ b/gnu/services/cups.scm
@@ -482,7 +482,8 @@ (define-configuration cups-configuration
    (package cups)
    "The CUPS package.")
   (extensions
-   (package-list (list cups-filters escpr hplip-minimal foomatic-filters))
+   (package-list (list cups-filters epson-inkjet-printer-escpr
+                       foomatic-filters hplip-minimal splix))
    "Drivers and other extensions to the CUPS package.")
   (files-configuration
    (files-configuration (files-configuration))
diff --git a/gnu/services/sddm.scm b/gnu/services/sddm.scm
index 59f8b16985..694ad736dc 100644
--- a/gnu/services/sddm.scm
+++ b/gnu/services/sddm.scm
@@ -169,7 +169,7 @@ (define sddm-command
 
   (list (shepherd-service
          (documentation "SDDM display manager.")
-         (requirement '(user-processes))
+         (requirement '(user-processes elogind))
          (provision '(xorg-server display-manager))
          (start #~(make-forkexec-constructor #$sddm-command))
          (stop #~(make-kill-destructor)))))
diff --git a/gnu/system/images/pinebook-pro.scm b/gnu/system/images/pinebook-pro.scm
new file mode 100644
index 0000000000..b038e262cb
--- /dev/null
+++ b/gnu/system/images/pinebook-pro.scm
@@ -0,0 +1,66 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2020 Mathieu Othacehe <m.othacehe@gmail.com>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu system images pinebook-pro)
+  #:use-module (gnu bootloader)
+  #:use-module (gnu bootloader u-boot)
+  #:use-module (gnu image)
+  #:use-module (gnu packages linux)
+  #:use-module (gnu services)
+  #:use-module (gnu services base)
+  #:use-module (gnu system)
+  #:use-module (gnu system file-systems)
+  #:use-module (gnu system image)
+  #:use-module (srfi srfi-26)
+  #:export (pinebook-pro-barebones-os
+            pinebook-pro-image-type
+            pinebook-pro-barebones-raw-image))
+
+(define pinebook-pro-barebones-os
+  (operating-system
+    (host-name "viso")
+    (timezone "Europe/Paris")
+    (locale "en_US.utf8")
+    (bootloader (bootloader-configuration
+                 (bootloader u-boot-pinebook-pro-rk3399-bootloader)
+                 (target "/dev/vda")))
+    (initrd-modules '())
+    (kernel linux-libre-arm64-generic)
+    (file-systems (cons (file-system
+                          (device (file-system-label "my-root"))
+                          (mount-point "/")
+                          (type "ext4"))
+                        %base-file-systems))
+    (services (cons (service agetty-service-type
+                             (agetty-configuration
+                              (extra-options '("-L")) ; no carrier detect
+                              (baud-rate "115200")
+                              (term "vt100")
+                              (tty "ttyS0")))
+                    %base-services))))
+
+(define pinebook-pro-image-type
+  (image-type
+   (name 'pinebook-pro-raw)
+   (constructor (cut image-with-os arm64-disk-image <>))))
+
+(define pinebook-pro-barebones-raw-image
+  (image
+   (inherit
+    (os->image pinebook-pro-barebones-os #:type pinebook-pro-image-type))
+   (name 'pinebook-pro-barebones-raw-image)))
diff --git a/guix/build/cargo-build-system.scm b/guix/build/cargo-build-system.scm
index 73493af551..c7beffc6e4 100644
--- a/guix/build/cargo-build-system.scm
+++ b/guix/build/cargo-build-system.scm
@@ -123,6 +123,13 @@ (define* (configure #:key inputs
   (setenv "CC" (string-append (assoc-ref inputs "gcc") "/bin/gcc"))
   (setenv "LIBGIT2_SYS_USE_PKG_CONFIG" "1")
   (setenv "LIBSSH2_SYS_USE_PKG_CONFIG" "1")
+  (when (assoc-ref inputs "openssl")
+    (setenv "OPENSSL_DIR" (assoc-ref inputs "openssl")))
+  (when (assoc-ref inputs "gettext")
+    (setenv "GETTEXT_SYSTEM" (assoc-ref inputs "gettext")))
+  (when (assoc-ref inputs "clang")
+    (setenv "LIBCLANG_PATH"
+            (string-append (assoc-ref inputs "clang") "/lib")))
 
   ;; We don't use the Cargo.lock file to determine the package versions we use
   ;; during building, and in any case if one is not present it is created
diff --git a/guix/cpio.scm b/guix/cpio.scm
index e4692e2e9c..c9932f5bf9 100644
--- a/guix/cpio.scm
+++ b/guix/cpio.scm
@@ -27,6 +27,7 @@ (define-module (guix cpio)
             make-cpio-header
             file->cpio-header
             file->cpio-header*
+            special-file->cpio-header*
             write-cpio-header
             read-cpio-header
 
@@ -132,9 +133,10 @@ (define* (make-cpio-header #:key
     (%make-cpio-header MAGIC
                        inode mode uid gid
                        nlink mtime
-                       (if (= C_ISDIR (logand mode C_FMT))
-                           0
-                           size)
+                       (if (or (= C_ISLNK (logand mode C_FMT))
+                               (= C_ISREG (logand mode C_FMT)))
+                           size
+                           0)
                        major minor rmajor rminor
                        (+ name-size 1)              ;include trailing zero
                        0)))                          ;checksum
@@ -146,6 +148,8 @@ (define (mode->type mode)
     (cond ((= C_ISREG fmt) 'regular)
           ((= C_ISDIR fmt) 'directory)
           ((= C_ISLNK fmt) 'symlink)
+          ((= C_ISBLK fmt) 'block-special)
+          ((= C_ISCHR fmt) 'char-special)
           (else
            (error "unsupported file type" mode)))))
 
@@ -187,6 +191,25 @@ (define* (file->cpio-header* file
                       #:size (stat:size st)
                       #:name-size (string-length file-name))))
 
+(define* (special-file->cpio-header* file
+                                     device-type
+                                     device-major
+                                     device-minor
+                                     permission-bits
+                                     #:optional (file-name file))
+  "Create a character or block device header.
+
+DEVICE-TYPE is either 'char-special or 'block-special.
+
+The number of hard links is assumed to be 1."
+  (make-cpio-header #:mode (logior (match device-type
+                                    ('block-special C_ISBLK)
+                                    ('char-special C_ISCHR))
+                                    permission-bits)
+                    #:nlink 1
+                    #:rdev (device-number device-major device-minor)
+                    #:name-size (string-length file-name)))
+
 (define %trailer
   "TRAILER!!!")
 
@@ -233,6 +256,10 @@ (define (dump-file file)
            (put-string port target)))
         ((directory)
          #t)
+        ((block-special)
+         #t)
+        ((char-special)
+         #t)
         (else
          (error "file type not supported")))
 
diff --git a/guix/import/hackage.scm b/guix/import/hackage.scm
index 35c67cad8d..6ca4f65cb0 100644
--- a/guix/import/hackage.scm
+++ b/guix/import/hackage.scm
@@ -40,7 +40,8 @@ (define-module (guix import hackage)
   #:use-module (guix upstream)
   #:use-module (guix packages)
   #:use-module ((guix utils) #:select (call-with-temporary-output-file))
-  #:export (hackage->guix-package
+  #:export (%hackage-url
+            hackage->guix-package
             hackage-recursive-import
             %hackage-updater
 
@@ -92,20 +93,23 @@ (define ghc-standard-libraries
 
 (define package-name-prefix "ghc-")
 
+(define %hackage-url
+  (make-parameter "https://hackage.haskell.org"))
+
 (define (hackage-source-url name version)
   "Given a Hackage package NAME and VERSION, return a url to the source
 tarball."
-  (string-append "https://hackage.haskell.org/package/" name
-                 "/" name "-" version ".tar.gz"))
+  (string-append (%hackage-url) "/package/"
+                 name "/" name "-" version ".tar.gz"))
 
 (define* (hackage-cabal-url name #:optional version)
   "Given a Hackage package NAME and VERSION, return a url to the corresponding
 .cabal file on Hackage.  If VERSION is #f or missing, the url for the latest
 version is returned."
   (if version
-      (string-append "https://hackage.haskell.org/package/"
+      (string-append (%hackage-url) "/package/"
                      name "-" version "/" name ".cabal")
-      (string-append "https://hackage.haskell.org/package/"
+      (string-append (%hackage-url) "/package/"
                      name "/" name ".cabal")))
 
 (define (hackage-name->package-name name)
diff --git a/guix/import/stackage.scm b/guix/import/stackage.scm
index 93cf214127..77cc6350cb 100644
--- a/guix/import/stackage.scm
+++ b/guix/import/stackage.scm
@@ -30,7 +30,8 @@ (define-module (guix import stackage)
   #:use-module (guix memoization)
   #:use-module (guix packages)
   #:use-module (guix upstream)
-  #:export (stackage->guix-package
+  #:export (%stackage-url
+            stackage->guix-package
             stackage-recursive-import
             %stackage-updater))
 
@@ -39,7 +40,8 @@ (define-module (guix import stackage)
 ;;; Stackage info fetcher and access functions
 ;;;
 
-(define %stackage-url "https://www.stackage.org")
+(define %stackage-url
+  (make-parameter "https://www.stackage.org"))
 
 ;; Latest LTS version compatible with GHC 8.6.5.
 (define %default-lts-version "14.27")
@@ -55,7 +57,7 @@ (define stackage-lts-info-fetch
   ;; "Retrieve the information about the LTS Stackage release VERSION."
   (memoize
    (lambda* (#:optional (version ""))
-     (let* ((url (string-append %stackage-url
+     (let* ((url (string-append (%stackage-url)
                                 "/lts-" (if (string-null? version)
                                             %default-lts-version
                                             version)))
diff --git a/guix/lint.scm b/guix/lint.scm
index 91dbc806dc..be6bb4eb01 100644
--- a/guix/lint.scm
+++ b/guix/lint.scm
@@ -10,6 +10,7 @@
 ;;; Copyright © 2017, 2018, 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2018, 2019 Arun Isaac <arunisaac@systemreboot.net>
 ;;; Copyright © 2020 Chris Marusich <cmmarusich@gmail.com>
+;;; Copyright © 2020 Timothy Sample <samplet@ngyro.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -35,6 +36,8 @@ (define-module (guix lint)
   #:use-module (guix http-client)
   #:use-module (guix packages)
   #:use-module (guix i18n)
+  #:use-module ((guix gexp)
+                #:select (local-file? local-file-absolute-file-name))
   #:use-module (guix licenses)
   #:use-module (guix records)
   #:use-module (guix grafts)
@@ -50,6 +53,7 @@ (define-module (guix lint)
   #:use-module ((guix swh) #:hide (origin?))
   #:autoload   (guix git-download) (git-reference?
                                     git-reference-url git-reference-commit)
+  #:use-module (guix import stackage)
   #:use-module (ice-9 match)
   #:use-module (ice-9 regex)
   #:use-module (ice-9 format)
@@ -73,6 +77,7 @@ (define-module (guix lint)
             check-inputs-should-be-native
             check-inputs-should-not-be-an-input-at-all
             check-patch-file-names
+            check-patch-headers
             check-synopsis-style
             check-derivation
             check-home-page
@@ -87,6 +92,7 @@ (define-module (guix lint)
             check-formatting
             check-archival
             check-profile-collisions
+            check-haskell-stackage
 
             lint-warning
             lint-warning?
@@ -712,6 +718,54 @@ (define (starts-with-package-name? file-name)
                      (_ #f))
                    patches)))))
 
+(define (check-patch-headers package)
+  "Check that PACKAGE's patches start with a comment.  Return a list of
+warnings."
+  (define (blank? str)
+    (string-every char-set:blank str))
+
+  (define (patch-header-warnings patch)
+    (call-with-input-file patch
+      (lambda (port)
+        ;; Read from PORT until a non-blank line is found or EOF is reached.
+        (let loop ()
+          (let ((line (read-line port)))
+            (cond ((eof-object? line)
+                   (list (make-warning package
+                                       (G_ "~a: empty patch")
+                                       (list (basename patch))
+                                       #:field 'source)))
+                  ((blank? line)
+                   (loop))
+                  ((or (string-prefix? "--- " line)
+                       (string-prefix? "+++ " line))
+                   (list (make-warning package
+                                       (G_ "~a: patch lacks comment and \
+upstream status")
+                                       (list (basename patch))
+                                       #:field 'source)))
+                  (else
+                   '())))))))
+
+  (guard (c ((formatted-message? c)               ;raised by 'search-patch'
+             (list (%make-warning package
+                                  (formatted-message-string c)
+                                  (formatted-message-arguments c)
+                                  #:field 'source))))
+   (let ((patches (if (origin? (package-source package))
+                      (origin-patches (package-source package))
+                      '())))
+     (append-map (lambda (patch)
+                   ;; Dismiss PATCH if it's an origin or similar.
+                   (cond ((string? patch)
+                          (patch-header-warnings patch))
+                         ((local-file? patch)
+                          (patch-header-warnings
+                           (local-file-absolute-file-name patch)))
+                         (else
+                          '())))
+                 patches))))
+
 (define (escape-quotes str)
   "Replace any quote character in STR by an escaped quote character."
   (list->string
@@ -1234,6 +1288,25 @@ (define commit
               '()
               (apply throw key args))))))))
 
+(define (check-haskell-stackage package)
+  "Check whether PACKAGE is a Haskell package ahead of the current
+Stackage LTS version."
+  (match (with-networking-fail-safe
+          (format #f (G_ "while retrieving upstream info for '~a'")
+                  (package-name package))
+          #f
+          (package-latest-release package (list %stackage-updater)))
+    ((? upstream-source? source)
+     (if (version>? (package-version package)
+                    (upstream-source-version source))
+         (list
+          (make-warning package
+                        (G_ "ahead of Stackage LTS version ~a")
+                        (list (upstream-source-version source))
+                        #:field 'version))
+         '()))
+    (#f '())))
+
 
 ;;;
 ;;; Source code formatting.
@@ -1417,6 +1490,10 @@ (define %local-checkers
     (name        'patch-file-names)
     (description "Validate file names and availability of patches")
     (check       check-patch-file-names))
+   (lint-checker
+    (name        'patch-headers)
+    (description "Validate patch headers")
+    (check       check-patch-headers))
    (lint-checker
      (name        'formatting)
      (description "Look for formatting issues in the source")
@@ -1456,7 +1533,11 @@ (define %network-dependent-checkers
    (lint-checker
      (name        'archival)
      (description "Ensure source code archival on Software Heritage")
-     (check       check-archival))))
+     (check       check-archival))
+   (lint-checker
+     (name        'haskell-stackage)
+     (description "Ensure Haskell packages use Stackage LTS versions")
+     (check       check-haskell-stackage))))
 
 (define %all-checkers
   (append %local-checkers
diff --git a/guix/scripts/build.scm b/guix/scripts/build.scm
index cc020632af..a959cb827d 100644
--- a/guix/scripts/build.scm
+++ b/guix/scripts/build.scm
@@ -181,8 +181,6 @@ (define (show-build-options-help)
   -c, --cores=N          allow the use of up to N CPU cores for the build"))
   (display (G_ "
   -M, --max-jobs=N       allow at most N build jobs"))
-  (display (G_ "
-      --help-transform   list package transformation options not shown here"))
   (display (G_ "
       --debug=LEVEL      produce debugging output at LEVEL")))
 
@@ -319,14 +317,7 @@ (define %standard-build-options
                     (if c
                         (apply values (alist-cons 'max-jobs c result) rest)
                         (leave (G_ "not a number: '~a' option argument: ~a~%")
-                               name arg)))))
-        (option '("help-transform") #f #f
-                (lambda _
-                  (format #t
-                          (G_ "Available package transformation options:~%"))
-                  (show-transformation-options-help)
-                  (newline)
-                  (exit 0)))))
+                               name arg)))))))
 
 
 ;;;
@@ -383,6 +374,8 @@ (define (show-help)
   (newline)
   (show-build-options-help)
   (newline)
+  (show-transformation-options-help)
+  (newline)
   (display (G_ "
   -h, --help             display this help and exit"))
   (display (G_ "
diff --git a/guix/scripts/environment.scm b/guix/scripts/environment.scm
index 2328df98b8..e435bf0ce4 100644
--- a/guix/scripts/environment.scm
+++ b/guix/scripts/environment.scm
@@ -180,6 +180,8 @@ (define (show-help)
   (newline)
   (show-build-options-help)
   (newline)
+  (show-transformation-options-help)
+  (newline)
   (display (G_ "
   -h, --help             display this help and exit"))
   (display (G_ "
diff --git a/guix/scripts/graph.scm b/guix/scripts/graph.scm
index 6874904deb..ddfc6ba497 100644
--- a/guix/scripts/graph.scm
+++ b/guix/scripts/graph.scm
@@ -35,7 +35,8 @@ (define-module (guix scripts graph)
   #:use-module ((guix diagnostics)
                 #:select (location-file formatted-message))
   #:use-module ((guix transformations)
-                #:select (options->transformation
+                #:select (show-transformation-options-help
+                          options->transformation
                           %transformation-options))
   #:use-module ((guix scripts build)
                 #:select (%standard-build-options))
@@ -546,6 +547,8 @@ (define (show-help)
   (display (G_ "
   -L, --load-path=DIR    prepend DIR to the package module search path"))
   (newline)
+  (show-transformation-options-help)
+  (newline)
   (display (G_ "
   -h, --help             display this help and exit"))
   (display (G_ "
diff --git a/guix/scripts/install.scm b/guix/scripts/install.scm
index 82f5875dd1..63e625f266 100644
--- a/guix/scripts/install.scm
+++ b/guix/scripts/install.scm
@@ -39,6 +39,8 @@ (define (show-help)
   (newline)
   (show-build-options-help)
   (newline)
+  (show-transformation-options-help)
+  (newline)
   (display (G_ "
   -h, --help             display this help and exit"))
   (display (G_ "
diff --git a/guix/scripts/lint.scm b/guix/scripts/lint.scm
index 18cd167537..c72dc3caad 100644
--- a/guix/scripts/lint.scm
+++ b/guix/scripts/lint.scm
@@ -10,6 +10,7 @@
 ;;; Copyright © 2017, 2018 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2018, 2019 Arun Isaac <arunisaac@systemreboot.net>
 ;;; Copyright © 2019, 2020 Simon Tournier <zimon.toutoune@gmail.com>
+;;; Copyright © 2020 Brice Waegeneire <brice@waegenei.re>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -47,11 +48,15 @@ (define (emit-warnings warnings)
   ;; provided MESSAGE.
   (for-each
    (lambda (lint-warning)
-     (let ((package (lint-warning-package lint-warning))
-           (loc     (lint-warning-location lint-warning)))
-       (info loc (G_ "~a@~a: ~a~%")
-             (package-name package) (package-version package)
-             (lint-warning-message lint-warning))))
+     (let* ((package (lint-warning-package lint-warning))
+            (name    (package-name package))
+            (version (package-version package))
+            (loc     (lint-warning-location lint-warning))
+            (message (lint-warning-message lint-warning)))
+       (parameterize
+           ((guix-warning-port (current-output-port)))
+         (info loc (G_ "~a@~a: ~a~%")
+               name version message))))
    warnings))
 
 (define* (run-checkers package checkers #:key store)
diff --git a/guix/scripts/pack.scm b/guix/scripts/pack.scm
index 0b29997200..ba9a6dc1b2 100644
--- a/guix/scripts/pack.scm
+++ b/guix/scripts/pack.scm
@@ -1067,6 +1067,8 @@ (define (show-help)
 Create a bundle of PACKAGE.\n"))
   (show-build-options-help)
   (newline)
+  (show-transformation-options-help)
+  (newline)
   (display (G_ "
   -f, --format=FORMAT    build a pack in the given FORMAT"))
   (display (G_ "
diff --git a/guix/scripts/package.scm b/guix/scripts/package.scm
index eb2e67a0de..6faf2adb7a 100644
--- a/guix/scripts/package.scm
+++ b/guix/scripts/package.scm
@@ -398,6 +398,8 @@ (define (show-help)
   (newline)
   (show-build-options-help)
   (newline)
+  (show-transformation-options-help)
+  (newline)
   (display (G_ "
   -h, --help             display this help and exit"))
   (display (G_ "
diff --git a/guix/scripts/publish.scm b/guix/scripts/publish.scm
index f1a9970a7f..2a2185e2b9 100644
--- a/guix/scripts/publish.scm
+++ b/guix/scripts/publish.scm
@@ -63,10 +63,14 @@ (define-module (guix scripts publish)
   #:use-module ((guix build utils)
                 #:select (dump-port mkdir-p find-files))
   #:use-module ((guix build syscalls) #:select (set-thread-name))
-  #:export (%public-key
+  #:export (%default-gzip-compression
+
+            %public-key
             %private-key
             signed-string
 
+            open-server-socket
+            run-publish-server
             guix-publish))
 
 (define (show-help)
diff --git a/guix/scripts/upgrade.scm b/guix/scripts/upgrade.scm
index 1ee8937acf..dcbcb2ab09 100644
--- a/guix/scripts/upgrade.scm
+++ b/guix/scripts/upgrade.scm
@@ -42,6 +42,8 @@ (define (show-help)
   (newline)
   (show-build-options-help)
   (newline)
+  (show-transformation-options-help)
+  (newline)
   (display (G_ "
   -h, --help             display this help and exit"))
   (display (G_ "
diff --git a/guix/store.scm b/guix/store.scm
index d859ea33ed..11e2dae579 100644
--- a/guix/store.scm
+++ b/guix/store.scm
@@ -113,6 +113,7 @@ (define-module (guix store)
             build
             query-failed-paths
             clear-failed-paths
+            ensure-path
             add-temp-root
             add-indirect-root
             add-permanent-root
@@ -1397,6 +1398,11 @@ (define build-things
                                          (message "unsupported build mode")
                                          (status  1))))))))))))
 
+(define-operation (ensure-path (store-path path))
+  "Make PATH a temporary root for the duration of the current session.
+Return #t."
+  boolean)
+
 (define-operation (add-temp-root (store-path path))
   "Make PATH a temporary root for the duration of the current session.
 Return #t."
diff --git a/guix/transformations.scm b/guix/transformations.scm
index 30142dd059..d49041cf59 100644
--- a/guix/transformations.scm
+++ b/guix/transformations.scm
@@ -508,9 +508,17 @@ (define %transformation-options
           (option '("with-debug-info") #t #f
                   (parser 'with-debug-info))
           (option '("without-tests") #t #f
-                  (parser 'without-tests)))))
+                  (parser 'without-tests))
 
-(define (show-transformation-options-help)
+          (option '("help-transform") #f #f
+                  (lambda _
+                    (format #t
+                            (G_ "Available package transformation options:~%"))
+                    (show-transformation-options-help/detailed)
+                    (newline)
+                    (exit 0))))))
+
+(define (show-transformation-options-help/detailed)
   (display (G_ "
       --with-source=[PACKAGE=]SOURCE
                          use SOURCE when building the corresponding package"))
@@ -539,6 +547,10 @@ (define (show-transformation-options-help)
       --without-tests=PACKAGE
                          build PACKAGE without running its tests")))
 
+(define (show-transformation-options-help)
+  "Show basic help for package transformation options."
+  (display (G_ "
+      --help-transform   list package transformation options not shown here")))
 
 (define (options->transformation opts)
   "Return a procedure that, when passed an object to build (package,
diff --git a/po/doc/guix-manual.fr.po b/po/doc/guix-manual.fr.po
index f727b6b5b3..025f8084ff 100644
--- a/po/doc/guix-manual.fr.po
+++ b/po/doc/guix-manual.fr.po
@@ -41,7 +41,7 @@ msgstr ""
 "Project-Id-Version: guix-manual 1.2.0-pre3\n"
 "Report-Msgid-Bugs-To: bug-guix@gnu.org\n"
 "POT-Creation-Date: 2020-11-05 17:27+0100\n"
-"PO-Revision-Date: 2020-11-09 00:09+0100\n"
+"PO-Revision-Date: 2020-11-20 14:37+0100\n"
 "Last-Translator: Julien Lepiller <julien@lepiller.eu>\n"
 "Language-Team: French <traduc@traduc.org>\n"
 "Language: fr\n"
@@ -658,7 +658,7 @@ msgstr "La distribution GNU est jeune et vos paquets préférés peuvent manquer
 #. type: Plain text
 #: doc/contributing.texi:339
 msgid "Free software packages are usually distributed in the form of @dfn{source code tarballs}---typically @file{tar.gz} files that contain all the source files.  Adding a package to the distribution means essentially two things: adding a @dfn{recipe} that describes how to build the package, including a list of other packages required to build it, and adding @dfn{package metadata} along with that recipe, such as a description and licensing information."
-msgstr "Les paquets de logiciels libres sont habituellement distribués sous forme @dfn{d'archives de sources} — typiquement des fichiers @file{.tar.gz} contenant tous les fichiers sources.  Ajouter un paquet à la distribution signifie essentiellement deux choses : ajouter une @dfn{recette} qui décrit comment construire le paquet, avec une liste d'autres paquets requis pour le construire, et ajouter des @dfn{métadonnées de paquet} avec la recette, comme une description et une licence."
+msgstr "Les paquets de logiciels libres sont habituellement distribués sous forme @dfn{d'archives de sources} — typiquement des fichiers @file{.tar.gz} contenant tous les fichiers sources.  Ajouter un paquet à la distribution signifie en substance deux choses : ajouter une @dfn{recette} qui décrit comment construire le paquet, avec une liste d'autres paquets requis pour le construire, et ajouter des @dfn{métadonnées de paquet} avec la recette, comme une description et une licence."
 
 #. type: Plain text
 #: doc/contributing.texi:348
@@ -10698,7 +10698,7 @@ msgstr "Le format nar est comparable dans l'esprit au format \"tar\", mais avec
 #. type: Plain text
 #: doc/guix.texi:4747
 msgid "That nar bundle format is essentially the concatenation of zero or more nars along with metadata for each store item it contains: its file name, references, corresponding derivation, and a digital signature."
-msgstr "Ce format nar bundle est essentiellement la concaténation de zéro ou plus de nar avec des métadonnées pour chaque élément du dépôt qu'il contient : son nom de fichier, ses références, la dérivation correspondante et une signature numérique."
+msgstr "Ce format de lot nar est surtout la concaténation de zéro, un ou plusieurs nar avec des métadonnées pour chaque élément du dépôt qu'il contient : son nom de fichier, ses références, la dérivation correspondante et une signature numérique."
 
 #. type: Plain text
 #: doc/guix.texi:4753
@@ -11226,12 +11226,9 @@ msgstr ""
 " (version 0)\n"
 " (dependencies\n"
 "  (channel\n"
-"   (name une-collection)\n"
-"   (url \"https://exemple.org/premiere-collection.git\"))\n"
-"  (channel\n"
-"   (name une-autre-collection)\n"
-"   (url \"https://exemple.org/deuxieme-collection.git\")\n"
-"   (branch \"testing\"))))\n"
+"   (name 'some-collection)\n"
+"   (url \"https://example.org/first-collection.git\")\n"
+"\n"
 
 #. type: lisp
 #: doc/guix.texi:5151
@@ -11249,7 +11246,7 @@ msgid ""
 "   (url \"https://example.org/second-collection.git\")\n"
 "   (branch \"testing\"))))\n"
 msgstr ""
-"   ;; La partie \"introduction\" ci-dessous est facultative : vous la\n"
+"   ;; La partie « introduction » ci-dessous est facultative : vous la\n"
 "   ;; fournissez pour les dépendances qui peuvent être authentifiées.\n"
 "   (introduction\n"
 "    (channel-introduction\n"
@@ -12361,7 +12358,7 @@ msgstr "Produire des @dfn{binaires repositionnables} — c.-à-d.@: des binaires
 #. type: table
 #: doc/guix.texi:5890
 msgid "When this option is passed once, the resulting binaries require support for @dfn{user namespaces} in the kernel Linux; when passed @emph{twice}@footnote{Here's a trick to memorize it: @code{-RR}, which adds PRoot support, can be thought of as the abbreviation of ``Really Relocatable''.  Neat, isn't it?}, relocatable binaries fall to back to other techniques if user namespaces are unavailable, and essentially work anywhere---see below for the implications."
-msgstr "Lorsque vous passez cette option une fois, les binaires qui en résultent demandent le support des @dfn{espaces de nom utilisateurs} dans le noyau Linux ; lorsque vous la passez @emph{deux fois}@footnote{Il y a une astuce pour s'en souvenir : on peut envisager @code{-RR}, qui ajoute le support PRoot, comme étant l'abréviation de « Réellement Repositionnable ».  Pas mal, hein ?}, les binaires repositionnables utilisent PRoot si les espaces de noms ne sont pas utilisables, et ça fonctionne partout — voir plus bas pour comprendre les implications."
+msgstr "Lorsque vous passez cette option une fois, les binaires qui en résultent demandent le support des @dfn{espaces de nom utilisateurs} dans le noyau Linux ; lorsque vous la passez @emph{deux fois}@footnote{Il y a une astuce pour s'en souvenir : on peut envisager @code{-RR}, qui ajoute le support PRoot, comme étant l'abréviation de « Réellement Repositionnable ».  Pas mal, hein ?}, les binaires repositionnables utilisent PRoot si les espaces de noms ne sont pas utilisables, et ça fonctionne à peu près partout — voir plus bas pour comprendre les implications."
 
 #. type: table
 #: doc/guix.texi:5892
@@ -12875,7 +12872,7 @@ msgstr "En ajoutant le répertoire contenant vos modules de paquets au chemin de
 #. type: enumerate
 #: doc/guix.texi:6264
 msgid "By defining a @dfn{channel} and configuring @command{guix pull} so that it pulls from it.  A channel is essentially a Git repository containing package modules.  @xref{Channels}, for more information on how to define and use channels."
-msgstr "En définissant un @dfn{canal} et en configurant @command{guix pull} pour qu'il l'utilise.  Un canal est essentiellement un dépôt Git contenant des modules de paquets.  @xref{Channels}, pour plus d'informations sur comment définir et utiliser des canaux."
+msgstr "En définissant un @dfn{canal} et en configurant @command{guix pull} pour qu'il l'utilise.  Un canal est en substance un dépôt Git contenant des modules de paquets.  @xref{Channels}, pour plus d'informations sur comment définir et utiliser des canaux."
 
 #. type: Plain text
 #: doc/guix.texi:6267
@@ -12968,7 +12965,7 @@ msgstr ""
 #. type: Plain text
 #: doc/guix.texi:6325
 msgid "Without being a Scheme expert, the reader may have guessed the meaning of the various fields here.  This expression binds the variable @code{hello} to a @code{<package>} object, which is essentially a record (@pxref{SRFI-9, Scheme records,, guile, GNU Guile Reference Manual}).  This package object can be inspected using procedures found in the @code{(guix packages)} module; for instance, @code{(package-name hello)} returns---surprise!---@code{\"hello\"}."
-msgstr "Sans être un expert Scheme, le lecteur peut comprendre la signification des différents champs présents.  Cette expression lie la variable @code{hello} à un objet @code{<package>}, qui est essentiellement un enregistrement (@pxref{SRFI-9, Scheme records,, guile, GNU Guile Reference Manual}).  On peut inspecter cet objet de paquet avec les procédures qui se trouvent dans le module @code{(guix packages)} ; par exemple, @code{(package-name hello)} renvoie — oh surprise ! — @code{\"hello\"}."
+msgstr "Sans être un expert Scheme, le lecteur peut comprendre la signification des différents champs présents.  Cette expression lie la variable @code{hello} à un objet @code{<package>}, qui est en substance un enregistrement (@pxref{SRFI-9, Scheme records,, guile, GNU Guile Reference Manual}).  On peut inspecter cet objet de paquet avec les procédures qui se trouvent dans le module @code{(guix packages)} ; par exemple, @code{(package-name hello)} renvoie — oh surprise ! — @code{\"hello\"}."
 
 #. type: Plain text
 #: doc/guix.texi:6329
@@ -13959,7 +13956,7 @@ msgstr ""
 #. type: Plain text
 #: doc/guix.texi:6888
 msgid "The example above corresponds to what the @option{--with-source} package transformation option does.  Essentially @code{hello-2.2} preserves all the fields of @code{hello}, except @code{version} and @code{source}, which it overrides.  Note that the original @code{hello} variable is still there, in the @code{(gnu packages base)} module, unchanged.  When you define a custom package like this, you are really @emph{adding} a new package definition; the original one remains available."
-msgstr "L'exemple ci-dessus correspond à ce que l'option de transformation des paquets @option{--with-source} fait.  Essentiellement, @code{hello-2.2} préserve tous les champs de @code{hello}, sauf @code{version} et @code{source}, qu'il remplace.  Remarquez que la variable @code{hello} originale est toujours là, dans le module @code{(gnu packages base)}, et n'est pas modifiée.  Lorsque vous définissez un paquet personnalisé comme ceci, vous @emph{ajoutez} en fait une nouvelle définition de paquet ; la version originale est toujours disponible."
+msgstr "L'exemple ci-dessus correspond à ce que l'option de transformation des paquets @option{--with-source} fait.  En substance, @code{hello-2.2} préserve tous les champs de @code{hello}, sauf @code{version} et @code{source}, qu'il remplace.  Remarquez que la variable @code{hello} originale est toujours là, dans le module @code{(gnu packages base)}, et n'est pas modifiée.  Lorsque vous définissez un paquet personnalisé comme ceci, vous @emph{ajoutez} en fait une nouvelle définition de paquet ; la version originale est toujours disponible."
 
 #. type: Plain text
 #: doc/guix.texi:6894
@@ -14997,7 +14994,7 @@ msgstr "{Variable Scheme} julia-build-system"
 #. type: defvr
 #: doc/guix.texi:7550
 msgid "This variable is exported by @code{(guix build-system julia)}.  It implements the build procedure used by @uref{https://julialang.org/, julia} packages, which essentially is similar to running @samp{julia -e 'using Pkg; Pkg.add(package)'} in an environment where @env{JULIA_LOAD_PATH} contains the paths to all Julia package inputs.  Tests are run with @code{Pkg.test}."
-msgstr "Cette variable est exportée par @code{(guix build-system julia)}.  Elle implémente la procédure de compilation utilisée par les paquets @uref{https://julialang.org/, julia}, qui est essentiellement similaire à l'exécution de @samp{julia -e 'using Pkg ; Pkg.add(package)'} dans un environnement où @env{JULIA_LOAD_PATH} contient les chemins de toutes les entrées des paquets Julia. Les tests sont effectués avec @code{Pkg.test}."
+msgstr "Cette variable est exportée par @code{(guix build-system julia)}.  Elle implémente la procédure de compilation utilisée par les paquets @uref{https://julialang.org/, julia}, qui est globalement similaire à l'exécution de @samp{julia -e 'using Pkg ; Pkg.add(package)'} dans un environnement où @env{JULIA_LOAD_PATH} contient les chemins de toutes les entrées des paquets Julia. Les tests sont effectués avec @code{Pkg.test}."
 
 #. type: defvr
 #: doc/guix.texi:7553
@@ -15221,7 +15218,7 @@ msgstr "{Variable Scheme} r-build-system"
 #. type: defvr
 #: doc/guix.texi:7753
 msgid "This variable is exported by @code{(guix build-system r)}.  It implements the build procedure used by @uref{https://r-project.org, R} packages, which essentially is little more than running @samp{R CMD INSTALL --library=/gnu/store/@dots{}} in an environment where @env{R_LIBS_SITE} contains the paths to all R package inputs.  Tests are run after installation using the R function @code{tools::testInstalledPackage}."
-msgstr "Cette variable est exportée par @code{(guix build-system r)}.  Elle implémente la procédure de compilation utilisée par les paquets @uref{https://r-project.org, R}, qui consiste essentiellement à exécuter @samp{R CMD INSTALL --library=/gnu/store/@dots{}} dans un environnement où @env{R_LIBS_SITE} contient les chemins de toutes les entrées des paquets R.  Les tests sont exécutés après l'installation en utilisant la fonction R @code{tools::testInstalledPackage}."
+msgstr "Cette variable est exportée par @code{(guix build-system r)}.  Elle implémente la procédure de compilation utilisée par les paquets @uref{https://r-project.org, R}, qui consiste en substance à exécuter @samp{R CMD INSTALL --library=/gnu/store/@dots{}} dans un environnement où @env{R_LIBS_SITE} contient les chemins de toutes les entrées des paquets R.  Les tests sont exécutés après l'installation en utilisant la fonction R @code{tools::testInstalledPackage}."
 
 #. type: defvr
 #: doc/guix.texi:7755
@@ -18835,7 +18832,7 @@ msgstr "Produire une sortie de débogage qui provient du démon de construction.
 #. type: Plain text
 #: doc/guix.texi:10046
 msgid "Behind the scenes, @command{guix build} is essentially an interface to the @code{package-derivation} procedure of the @code{(guix packages)} module, and to the @code{build-derivations} procedure of the @code{(guix derivations)} module."
-msgstr "Sous le capot, @command{guix build} est surtout un interface à la procédure @code{package-derivation} du module @code{(guix packages)}, et à la procédure @code{build-derivations} du module @code{(guix derivations)}."
+msgstr "Sous le capot, @command{guix build} est surtout une interface à la procédure @code{package-derivation} du module @code{(guix packages)}, et à la procédure @code{build-derivations} du module @code{(guix derivations)}."
 
 #. type: Plain text
 #: doc/guix.texi:10050
@@ -20766,7 +20763,7 @@ msgstr "guix refresh -l -e '(@@@@ (gnu packages commencement) glibc-final)'\n"
 #. type: table
 #: doc/guix.texi:11317
 msgid "This command lists the dependents of the ``final'' libc (essentially all the packages)."
-msgstr "Cette commande liste les dépendances de la libc « finale » (essentiellement tous les paquets)."
+msgstr "Cette commande liste les dépendances de la libc « finale » (presque tous les paquets)."
 
 #. type: item
 #: doc/guix.texi:11318
@@ -23567,17 +23564,19 @@ msgid ""
 "\n"
 msgstr ""
 "(define %my-services\n"
-"  ;; Ma propre liste de services.\n"
+"  ;; ma propre liste de services.\n"
 "  (modify-services %base-services\n"
 "    (guix-service-type config =>\n"
 "                       (guix-configuration\n"
 "                        (inherit config)\n"
-"                        (use-substitutes? #f)\n"
-"                        (extra-options '(\"--gc-keep-derivations\"))))\n"
+"                        ;; Récupérer les substituts depuis example.org.\n"
+"                        (substitute-urls\n"
+"                          (list \"https://example.org/guix\"\n"
+"                                \"https://ci.guix.gnu.org\"))))\n"
 "    (mingetty-service-type config =>\n"
 "                           (mingetty-configuration\n"
-"                            (inherit config)))))\n"
-"                            ;; Automatially log in as \"guest\".\n"
+"                            (inherit config)\n"
+"                            ;; Connexion automatique en tant que « guest ».\n"
 "                            (auto-login \"guest\")))))\n"
 "\n"
 
@@ -25029,7 +25028,7 @@ msgstr ""
 "                          \"audio\"   ;carte son\n"
 "                          \"video\"   ;périphériques réseaux comme les webcams\n"
 "                          \"cdrom\")) ;le bon vieux CD-ROM\n"
-"  (comment \"Bob's sister\")\n"
+"  (comment \"Bob's sister\"))\n"
 
 #. type: Plain text
 #: doc/guix.texi:13865
diff --git a/tests/lint.scm b/tests/lint.scm
index 95abd71378..9b230814a5 100644
--- a/tests/lint.scm
+++ b/tests/lint.scm
@@ -7,6 +7,7 @@
 ;;; Copyright © 2017 Alex Kost <alezost@gmail.com>
 ;;; Copyright © 2017 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2018, 2019 Arun Isaac <arunisaac@systemreboot.net>
+;;; Copyright © 2020 Timothy Sample <samplet@ngyro.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -36,6 +37,10 @@ (define-module (test-lint)
   #:use-module (guix lint)
   #:use-module (guix ui)
   #:use-module (guix swh)
+  #:use-module ((guix gexp) #:select (local-file))
+  #:use-module ((guix utils) #:select (call-with-temporary-directory))
+  #:use-module ((guix import hackage) #:select (%hackage-url))
+  #:use-module ((guix import stackage) #:select (%stackage-url))
   #:use-module (gnu packages)
   #:use-module (gnu packages glib)
   #:use-module (gnu packages pkg-config)
@@ -344,6 +349,60 @@ (define (warning-contains? str warnings)
                   (list (search-patch "this-patch-does-not-exist!"))))))))
      (check-patch-file-names pkg))))
 
+(test-assert "patch headers: no warnings"
+  (call-with-temporary-directory
+   (lambda (directory)
+     (call-with-output-file (string-append directory "/t.patch")
+       (lambda (port)
+         (display "This is a patch.\n\n--- a\n+++ b\n"
+                  port)))
+
+     (parameterize ((%patch-path (list directory)))
+       (let ((pkg (dummy-package "x"
+                    (source (dummy-origin
+                             (patches (search-patches "t.patch")))))))
+         (null? (check-patch-headers pkg)))))))
+
+(test-equal "patch headers: missing comment"
+  "t.patch: patch lacks comment and upstream status"
+  (call-with-temporary-directory
+   (lambda (directory)
+     (call-with-output-file (string-append directory "/t.patch")
+       (lambda (port)
+         (display "\n--- a\n+++ b\n"
+                  port)))
+
+     (parameterize ((%patch-path (list directory)))
+       (let ((pkg (dummy-package "x"
+                    (source (dummy-origin
+                             (patches (search-patches "t.patch")))))))
+         (single-lint-warning-message (check-patch-headers pkg)))))))
+
+(test-equal "patch headers: empty"
+  "t.patch: empty patch"
+  (call-with-temporary-directory
+   (lambda (directory)
+     (call-with-output-file (string-append directory "/t.patch")
+       (const #t))
+
+     (parameterize ((%patch-path '()))
+       (let ((pkg (dummy-package "x"
+                    (source (dummy-origin
+                             (patches
+                              (list (local-file
+                                     (string-append directory
+                                                    "/t.patch")))))))))
+         (single-lint-warning-message (check-patch-headers pkg)))))))
+
+(test-equal "patch headers: patch not found"
+  "does-not-exist.patch: patch not found\n"
+  (parameterize ((%patch-path '()))
+    (let ((pkg (dummy-package "x"
+                 (source (dummy-origin
+                          (patches
+                           (search-patches "does-not-exist.patch")))))))
+      (single-lint-warning-message (check-patch-headers pkg)))))
+
 (test-equal "derivation: invalid arguments"
   "failed to create x86_64-linux derivation: (wrong-type-arg \"map\" \"Wrong type argument: ~S\" (invalid-module) ())"
   (match (let ((pkg (dummy-package "x"
@@ -1001,6 +1060,35 @@ (define (warning-contains? str warnings)
     (string-contains (single-lint-warning-message warnings)
                      "rate limit reached")))
 
+(test-skip (if (http-server-can-listen?) 0 1))
+(test-assert "haskell-stackage"
+  (let* ((stackage (string-append "{ \"packages\": [{"
+                                  "    \"name\":\"x\","
+                                  "    \"version\":\"1.0\" }]}"))
+         (packages (map (lambda (version)
+                          (dummy-package
+                           (string-append "ghc-x")
+                           (version version)
+                           (source
+                            (dummy-origin
+                             (method url-fetch)
+                             (uri (string-append
+                                   "https://hackage.haskell.org/package/"
+                                   "x-" version "/x-" version ".tar.gz"))))))
+                        '("0.9" "1.0" "2.0")))
+         (warnings (pk (with-http-server `((200 ,stackage) ; memoized
+                                           (200 "name: x\nversion: 1.0\n")
+                                           (200 "name: x\nversion: 1.0\n")
+                                           (200 "name: x\nversion: 1.0\n"))
+                         (parameterize ((%hackage-url (%local-url))
+                                        (%stackage-url (%local-url)))
+                           (append-map check-haskell-stackage packages))))))
+    (match warnings
+      (((? lint-warning? warning))
+       (and (string=? (package-version (lint-warning-package warning)) "2.0")
+            (string-contains (lint-warning-message warning)
+                             "ahead of Stackage LTS version"))))))
+
 (test-end "lint")
 
 ;; Local Variables:
diff --git a/tests/store-database.scm b/tests/store-database.scm
index 4d91884250..3b4ef43f6d 100644
--- a/tests/store-database.scm
+++ b/tests/store-database.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2017, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2017, 2018, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -21,6 +21,8 @@ (define-module (test-store-database)
   #:use-module (guix store)
   #:use-module (guix store database)
   #:use-module ((guix utils) #:select (call-with-temporary-output-file))
+  #:use-module ((guix build utils)
+                #:select (mkdir-p delete-file-recursively))
   #:use-module (srfi srfi-26)
   #:use-module (srfi srfi-64))
 
@@ -55,6 +57,28 @@ (define %store
            (list (stat:mtime (lstat file))
                  (stat:mtime (lstat ref)))))))
 
+(test-equal "register-path, directory"
+  '(1 1 1)
+  (let ((file (string-append (%store-prefix) "/" (make-string 32 #\f)
+                             "-fake-directory")))
+    (when (valid-path? %store file)
+      (delete-paths %store (list file)))
+    (false-if-exception (delete-file-recursively file))
+
+    (let ((drv (string-append file ".drv")))
+      (mkdir-p (string-append file "/a"))
+      (call-with-output-file (string-append file "/a/b")
+        (const #t))
+      (register-path file #:deriver drv)
+
+      (and (valid-path? %store file)
+           (null? (references %store file))
+           (null? (valid-derivers %store file))
+           (null? (referrers %store file))
+           (list (stat:mtime (lstat file))
+                 (stat:mtime (lstat (string-append file "/a")))
+                 (stat:mtime (lstat (string-append file "/a/b"))))))))
+
 (test-equal "new database"
   (list 1 2)
   (call-with-temporary-output-file