c4e48b68bd
* guix/build/hg.scm: New file. * guix/hg-download.scm: New file. * Makefile.am (MODULES): Add them.
52 lines
1.9 KiB
Scheme
52 lines
1.9 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2016 Ricardo Wurmus <rekado@elephly.net>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (guix build hg)
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#:use-module (guix build utils)
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#:export (hg-fetch))
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;;; Commentary:
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;;;
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;;; This is the build-side support code of (guix hg-download). It allows a
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;;; Mercurial repository to be cloned and checked out at a specific changeset
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;;; identifier.
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;;;
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;;; Code:
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(define* (hg-fetch url changeset directory
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#:key (hg-command "hg"))
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"Fetch CHANGESET from URL into DIRECTORY. CHANGESET must be a valid
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Mercurial changeset identifier. Return #t on success, #f otherwise."
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(and (zero? (system* hg-command
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"clone" url
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"--rev" changeset
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;; Disable TLS certificate verification. The hash of
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;; the checkout is known in advance anyway.
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"--insecure"
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directory))
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(with-directory-excursion directory
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(begin
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;; The contents of '.hg' vary as a function of the current
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;; status of the Mercurial repo. Since we want a fixed
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;; output, this directory needs to be taken out.
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(delete-file-recursively ".hg")
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#t))))
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;;; hg.scm ends here
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