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Diffstat (limited to 'guix/build/git.scm')
| -rw-r--r-- | guix/build/git.scm | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/guix/build/git.scm b/guix/build/git.scm new file mode 100644 index 0000000000..4245594c38 --- /dev/null +++ b/guix/build/git.scm @@ -0,0 +1,45 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2014 Ludovic Courtès <ludo@gnu.org> +;;; +;;; 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 (guix build git) + #:use-module (guix build utils) + #:export (git-fetch)) + +;;; Commentary: +;;; +;;; This is the build-side support code of (guix git-download). It allows a +;;; Git repository to be cloned and checked out at a specific commit. +;;; +;;; Code: + +(define* (git-fetch url commit directory + #:key (git-command "git")) + "Fetch COMMIT from URL into DIRECTORY. COMMIT must be a valid Git commit +identifier. Return #t on success, #f otherwise." + (and (zero? (system* git-command "clone" url directory)) + (with-directory-excursion directory + (system* git-command "tag" "-l") + (and (zero? (system* git-command "checkout" commit)) + (begin + ;; The contents of '.git' vary as a function of the current + ;; status of the Git repo. Since we want a fixed output, this + ;; directory needs to be taken out. + (delete-file-recursively ".git") + #t))))) + +;;; git.scm ends here |