guix/build/bzr.scm

   1 ;;; GNU Guix --- Functional package management for GNU
   2 ;;; Copyright © 2018 Maxim Cournoyer <maxim.cournoyer@gmail.com>
   3 ;;;
   4 ;;; This file is part of GNU Guix.
   5 ;;;
   6 ;;; GNU Guix is free software; you can redistribute it and/or modify it
   7 ;;; under the terms of the GNU General Public License as published by
   8 ;;; the Free Software Foundation; either version 3 of the License, or (at
   9 ;;; your option) any later version.
  10 ;;;
  11 ;;; GNU Guix is distributed in the hope that it will be useful, but
  12 ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
  13 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 ;;; GNU General Public License for more details.
  15 ;;;
  16 ;;; You should have received a copy of the GNU General Public License
  17 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 (define-module (guix build bzr)
  20   #:use-module (guix build utils)
  21   #:export (bzr-fetch))
  22
  23 ;;; Commentary:
  24 ;;;
  25 ;;; This is the build-side support code of (guix bzr-download).  It allows a
  26 ;;; Bazaar repository to be branched at a specific revision.
  27 ;;;
  28 ;;; Code:
  29
  30 (define* (bzr-fetch url revision directory
  31                     #:key (bzr-command "bzr"))
  32   "Fetch REVISION from URL into DIRECTORY.  REVISION must be a valid Bazaar
  33 revision identifier.  Return #t on success, else throw an exception."
  34   ;; Do not attempt to write .bzr.log to $HOME, which doesn't exist.
  35   (setenv "BZR_LOG" "/dev/null")
  36   ;; Disable SSL certificate verification; we rely on the hash instead.
  37   (invoke bzr-command "-Ossl.cert_reqs=none" "checkout"
  38           "--lightweight" "-r" revision url directory)
  39   (with-directory-excursion directory
  40     (begin
  41       (delete-file-recursively ".bzr")
  42       #t)))
  43
  44 ;;; bzr.scm ends here