gnu: Add blesh.

* gnu/packages/bash.scm (blesh): New variable.

Signed-off-by: Christopher Baines <mail@cbaines.net>

gnu/packages/bash.scm

@@ -37,6 +37,8 @@ (define-module (gnu packages bash)
   #:use-module (gnu packages libffi)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages guile)
+  #:use-module (gnu packages version-control)
+  #:use-module (gnu packages less)
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix git-download)
@@ -456,3 +458,45 @@ (define-public bash-ctypes
 function interface (FFI) directly in your shell.  In other words, it allows
 you to call routines in shared libraries from within Bash.")
     (license license:expat)))
+
+(define-public blesh
+  (package
+    (name "blesh")
+    (version "0.4.0-devel2")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/akinomyoga/ble.sh")
+                    (commit (string-append "v" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "02fdjyh4x6wr5hg3i86nsxhz8ysgjrvvxdmk6pqr0lm8ngw9p3sh"))))
+    (arguments
+     (list #:make-flags #~(list (string-append "PREFIX="
+                                               #$output))
+           #:phases #~(modify-phases %standard-phases
+                        (add-after 'unpack 'pretend-contrib-.git-exists
+                          (lambda _
+                            (mkdir-p "contrib/.git")))
+                        (add-after 'unpack 'make-readlink-work
+                          (lambda _
+                            (substitute* "ble.pp"
+                              (("PATH=/bin:/usr/bin readlink")
+                               (search-input-file %build-inputs
+                                                  "/bin/readlink")))))
+                        (delete 'configure) ;no configure
+                        (add-before 'check 'use-LANG-for-tests
+                          (lambda _
+                            (setenv "LANG"
+                                    (getenv "LC_ALL"))
+                            (unsetenv "LC_ALL"))))))
+    (build-system gnu-build-system)
+    (native-inputs (list less))
+    (home-page "https://github.com/akinomyoga/ble.sh")
+    (synopsis "Bash Line Editor")
+    (description
+     "Bash Line Editor (ble.sh) is a command line editor written in pure Bash
+which replaces the default GNU Readline.  It adds syntax highlighting, auto
+suggestions, vim modes, and more to Bash interactive sessions.")
+    (license license:bsd-3)))