From a4db19d8e07eeb26931edfde0f0e6bca4e0448d3 Mon Sep 17 00:00:00 2001 From: Maxim Cournoyer Date: Sun, 22 Oct 2023 23:41:22 -0400 Subject: [PATCH] git-download: Add support for Git Large File Storage (LFS). MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * guix/build/git.scm (git-fetch) [lfs?]: New argument, doc and setup code. (git-fetch-with-fallback) [lfs?]: New argument. Pass it to git-fetch. * guix/git-download.scm (git-lfs-package): New procedure. (git-fetch/in-band*): New procedure, made of the logic of git-fetch/in-band, with new git-lfs specifics, with the following changes: New #:git-lfs argument. : Remove labels. Conditionally add git-lfs. : Read "git lfs?" environment variable and pass its value to the #:lfs? argument of git-fetch-with-fallback. Use INPUTS directly; update comment. derivation>: Add "git lfs?" to #:env-vars. (git-fetch/in-band): Express in terms of git-fetch/in-band*. (git-fetch/lfs): New procedure. * doc/guix.texi (origin Reference): Document it. Change-Id: I5b233b8642a7bdb8737b9d9b740e7254a89ccb25 Reviewed-by: Ludovic Courtès --- doc/guix.texi | 7 ++++ guix/build/git.scm | 19 +++++++-- guix/git-download.scm | 97 ++++++++++++++++++++++++++++++------------- 3 files changed, 91 insertions(+), 32 deletions(-) diff --git a/doc/guix.texi b/doc/guix.texi index 9f06f1c325..8c78ff8c0c 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -8375,6 +8375,13 @@ hash @var{hash} of type @var{hash-algo} (a symbol). Use @var{name} as the file name, or a generic name if @code{#f}. @end deffn +@deffn {Procedure} git-fetch/lfs ref hash-algo hash +This is a variant of the @code{git-fetch} procedure that supports the +Git @acronym{LFS, Large File Storage} extension. This may be useful to +pull some binary test data to run the test suite of a package, for +example. +@end deffn + @deftp {Data Type} git-reference This data type represents a Git reference for @code{git-fetch} to retrieve. diff --git a/guix/build/git.scm b/guix/build/git.scm index 0ff263c81b..867cade2c4 100644 --- a/guix/build/git.scm +++ b/guix/build/git.scm @@ -1,5 +1,6 @@ ;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2014, 2016, 2019, 2023 Ludovic Courtès +;;; Copyright © 2023 Maxim Cournoyer ;;; ;;; This file is part of GNU Guix. ;;; @@ -33,10 +34,13 @@ ;;; Code: (define* (git-fetch url commit directory - #:key (git-command "git") recursive?) + #:key (git-command "git") + lfs? recursive?) "Fetch COMMIT from URL into DIRECTORY. COMMIT must be a valid Git commit -identifier. When RECURSIVE? is true, all the sub-modules of URL are fetched, -recursively. Return #t on success, #f otherwise." +identifier. When LFS? is true, configure Git to also fetch Large File +Storage (LFS) files; it assumes that the @code{git-lfs} extension is available +in the environment. When RECURSIVE? is true, all the sub-modules of URL are +fetched, recursively. Return #t on success, #f otherwise." ;; Disable TLS certificate verification. The hash of the checkout is known ;; in advance anyway. @@ -57,6 +61,11 @@ recursively. Return #t on success, #f otherwise." (with-directory-excursion directory (invoke git-command "init" "--initial-branch=main") (invoke git-command "remote" "add" "origin" url) + + (when lfs? + (setenv "HOME" "/tmp") + (invoke git-command "lfs" "install")) + (if (zero? (system* git-command "fetch" "--depth" "1" "origin" commit)) (invoke git-command "checkout" "FETCH_HEAD") (begin @@ -81,11 +90,13 @@ recursively. Return #t on success, #f otherwise." (define* (git-fetch-with-fallback url commit directory - #:key (git-command "git") recursive?) + #:key (git-command "git") + lfs? recursive?) "Like 'git-fetch', fetch COMMIT from URL into DIRECTORY, but fall back to alternative methods when fetching from URL fails: attempt to download a nar, and if that also fails, download from the Software Heritage archive." (or (git-fetch url commit directory + #:lfs? lfs? #:recursive? recursive? #:git-command git-command) (download-nar directory) diff --git a/guix/git-download.scm b/guix/git-download.scm index 5d5d73dc6b..3de6ae970d 100644 --- a/guix/git-download.scm +++ b/guix/git-download.scm @@ -4,6 +4,7 @@ ;;; Copyright © 2017 Christopher Baines ;;; Copyright © 2020 Jakub Kądziołka ;;; Copyright © 2023 Simon Tournier +;;; Copyright © 2023 Maxim Cournoyer ;;; ;;; This file is part of GNU Guix. ;;; @@ -54,6 +55,7 @@ git-reference-recursive? git-fetch + git-fetch/lfs git-version git-file-name git-predicate)) @@ -79,30 +81,36 @@ (let ((distro (resolve-interface '(gnu packages version-control)))) (module-ref distro 'git-minimal))) -(define* (git-fetch/in-band ref hash-algo hash - #:optional name - #:key (system (%current-system)) - (guile (default-guile)) - (git (git-package))) - "Return a fixed-output derivation that performs a Git checkout of REF, using -GIT and GUILE (thus, said derivation depends on GIT and GUILE). +(define (git-lfs-package) + "Return the default 'git-lfs' package." + (let ((distro (resolve-interface '(gnu packages version-control)))) + (module-ref distro 'git-lfs))) -This method is deprecated in favor of the \"builtin:git-download\" builder. -It will be removed when versions of guix-daemon implementing -\"builtin:git-download\" will be sufficiently widespread." +(define* (git-fetch/in-band* ref hash-algo hash + #:optional name + #:key (system (%current-system)) + (guile (default-guile)) + (git (git-package)) + git-lfs) + "Shared implementation code for git-fetch/in-band & friends. Refer to their +respective documentation." (define inputs - `(("git" ,(or git (git-package))) - - ;; When doing 'git clone --recursive', we need sed, grep, etc. to be - ;; available so that 'git submodule' works. + `(,(or git (git-package)) + ,@(if git-lfs + (list git-lfs) + '()) ,@(if (git-reference-recursive? ref) - (standard-packages) + ;; TODO: remove (standard-packages) after + ;; 48e528a26f9c019eeaccf5e3de3126aa02c98d3b is merged into master; + ;; currently when doing 'git clone --recursive', we need sed, grep, + ;; etc. to be available so that 'git submodule' works. + (map second (standard-packages)) ;; The 'swh-download' procedure requires tar and gzip. - `(("gzip" ,(module-ref (resolve-interface '(gnu packages compression)) - 'gzip)) - ("tar" ,(module-ref (resolve-interface '(gnu packages base)) - 'tar)))))) + (list (module-ref (resolve-interface '(gnu packages compression)) + 'gzip) + (module-ref (resolve-interface '(gnu packages base)) + 'tar))))) (define guile-json (module-ref (resolve-interface '(gnu packages guile)) 'guile-json-4)) @@ -126,7 +134,7 @@ It will be removed when versions of guix-daemon implementing (define build (with-imported-modules modules - (with-extensions (list guile-json gnutls ;for (guix swh) + (with-extensions (list guile-json gnutls ;for (guix swh) guile-lzlib) #~(begin (use-modules (guix build git) @@ -134,6 +142,9 @@ It will be removed when versions of guix-daemon implementing #:select (set-path-environment-variable)) (ice-9 match)) + (define lfs? + (call-with-input-string (getenv "git lfs?") read)) + (define recursive? (call-with-input-string (getenv "git recursive?") read)) @@ -144,18 +155,17 @@ It will be removed when versions of guix-daemon implementing #+(file-append glibc-locales "/lib/locale")) (setlocale LC_ALL "en_US.utf8") - ;; The 'git submodule' commands expects Coreutils, sed, - ;; grep, etc. to be in $PATH. - (set-path-environment-variable "PATH" '("bin") - (match '#+inputs - (((names dirs outputs ...) ...) - dirs))) + ;; The 'git submodule' commands expects Coreutils, sed, grep, + ;; etc. to be in $PATH. This also ensures that git extensions are + ;; found. + (set-path-environment-variable "PATH" '("bin") '#+inputs) (setvbuf (current-output-port) 'line) (setvbuf (current-error-port) 'line) (git-fetch-with-fallback (getenv "git url") (getenv "git commit") #$output + #:lfs? lfs? #:recursive? recursive? #:git-command "git"))))) @@ -175,18 +185,49 @@ It will be removed when versions of guix-daemon implementing (git-reference-url ref)))) ("git commit" . ,(git-reference-commit ref)) ("git recursive?" . ,(object->string - (git-reference-recursive? ref)))) + (git-reference-recursive? ref))) + ("git lfs?" . ,(if git-lfs "#t" "#f"))) #:leaked-env-vars '("http_proxy" "https_proxy" "LC_ALL" "LC_MESSAGES" "LANG" "COLUMNS") #:system system - #:local-build? #t ;don't offload repo cloning + #:local-build? #t ;don't offload repo cloning #:hash-algo hash-algo #:hash hash #:recursive? #t #:guile-for-build guile))) +(define* (git-fetch/in-band ref hash-algo hash + #:optional name + #:key (system (%current-system)) + (guile (default-guile)) + (git (git-package))) + "Return a fixed-output derivation that performs a Git checkout of REF, using +GIT and GUILE (thus, said derivation depends on GIT and GUILE). + +This method is deprecated in favor of the \"builtin:git-download\" builder. +It will be removed when versions of guix-daemon implementing +\"builtin:git-download\" will be sufficiently widespread." + (git-fetch/in-band* ref hash-algo hash name + #:system system + #:guile guile + #:git git)) + +(define* (git-fetch/lfs ref hash-algo hash + #:optional name + #:key (system (%current-system)) + (guile (default-guile)) + (git (git-package)) + (git-lfs (git-lfs-package))) + "Like git-fetch/in-band, but with support for the Git Large File +Storage (LFS) extension." + (git-fetch/in-band* ref hash-algo hash name + #:system system + #:guile guile + #:git git + #:git-lfs git-lfs)) + (define* (git-fetch/built-in ref hash-algo hash #:optional name #:key (system (%current-system)))