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Diffstat (limited to 'guix/build/hg.scm')
-rw-r--r-- | guix/build/hg.scm | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/guix/build/hg.scm b/guix/build/hg.scm new file mode 100644 index 0000000000..ae4574de57 --- /dev/null +++ b/guix/build/hg.scm @@ -0,0 +1,51 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2016 Ricardo Wurmus <rekado@elephly.net> +;;; +;;; 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 hg) + #:use-module (guix build utils) + #:export (hg-fetch)) + +;;; Commentary: +;;; +;;; This is the build-side support code of (guix hg-download). It allows a +;;; Mercurial repository to be cloned and checked out at a specific changeset +;;; identifier. +;;; +;;; Code: + +(define* (hg-fetch url changeset directory + #:key (hg-command "hg")) + "Fetch CHANGESET from URL into DIRECTORY. CHANGESET must be a valid +Mercurial changeset identifier. Return #t on success, #f otherwise." + + (and (zero? (system* hg-command + "clone" url + "--rev" changeset + ;; Disable TLS certificate verification. The hash of + ;; the checkout is known in advance anyway. + "--insecure" + directory)) + (with-directory-excursion directory + (begin + ;; The contents of '.hg' vary as a function of the current + ;; status of the Mercurial repo. Since we want a fixed + ;; output, this directory needs to be taken out. + (delete-file-recursively ".hg") + #t)))) + +;;; hg.scm ends here |