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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018, 2022 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;;
;;; 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 bzr)
#:use-module (guix build utils)
#:export (bzr-fetch))
;;; Commentary:
;;;
;;; This is the build-side support code of (guix bzr-download). It allows a
;;; Bazaar repository to be branched at a specific revision.
;;;
;;; Code:
(define* (bzr-fetch url revision directory
#:key (bzr-command "brz"))
"Fetch REVISION from URL into DIRECTORY. REVISION must be a valid Bazaar
revision identifier. Return #t on success, else throw an exception."
;; Do not attempt to write .bzr.log to $HOME, which doesn't exist.
(setenv "BZR_LOG" "/dev/null")
;; Disable SSL certificate verification; we rely on the hash instead.
(invoke bzr-command "-Ossl.cert_reqs=none" "checkout"
"--lightweight" "-r" revision url directory)
(with-directory-excursion directory
(delete-file-recursively ".bzr")))
;;; bzr.scm ends here
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