guix/svn-download.scm

   1 ;;; GNU Guix --- Functional package management for GNU
   2 ;;; Copyright © 2014 Ludovic Courtès <ludo@gnu.org>
   3 ;;; Copyright © 2014 Sree Harsha Totakura <sreeharsha@totakura.in>
   4 ;;;
   5 ;;; This file is part of GNU Guix.
   6 ;;;
   7 ;;; GNU Guix is free software; you can redistribute it and/or modify it
   8 ;;; under the terms of the GNU General Public License as published by
   9 ;;; the Free Software Foundation; either version 3 of the License, or (at
  10 ;;; your option) any later version.
  11 ;;;
  12 ;;; GNU Guix is distributed in the hope that it will be useful, but
  13 ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
  14 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 ;;; GNU General Public License for more details.
  16 ;;;
  17 ;;; You should have received a copy of the GNU General Public License
  18 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 (define-module (guix svn-download)
  21   #:use-module (guix records)
  22   #:use-module (guix gexp)
  23   #:use-module (guix monads)
  24   #:use-module (guix packages)
  25   #:use-module (ice-9 match)
  26   #:export (svn-reference
  27             svn-reference?
  28             svn-reference-url
  29             svn-reference-revision
  30             svn-fetch))
  31
  32 ;;; Commentary:
  33 ;;;
  34 ;;; An <origin> method that fetches a specific revision from a Subversion
  35 ;;; repository.  The repository URL and REVISION are specified with a
  36 ;;; <svn-reference> object.  REVISION should be specified as a number.
  37 ;;;
  38 ;;; Code:
  39
  40 (define-record-type* <svn-reference>
  41   svn-reference make-svn-reference
  42   svn-reference?
  43   (url      svn-reference-url)                    ; string
  44   (revision svn-reference-revision))              ; number
  45
  46 (define (subversion-package)
  47   "Return the default Subversion package."
  48   (let ((distro (resolve-interface '(gnu packages version-control))))
  49     (module-ref distro 'subversion)))
  50
  51 (define* (svn-fetch store ref hash-algo hash
  52                     #:optional name
  53                     #:key (system (%current-system)) guile
  54                     (svn (subversion-package)))
  55   "Return a fixed-output derivation in STORE that fetches REF, a
  56 <svn-reference> object.  The output is expected to have recursive hash HASH of
  57 type HASH-ALGO (a symbol).  Use NAME as the file name, or a generic name if
  58 #f."
  59   (define guile-for-build
  60     (match guile
  61       ((? package?)
  62        (package-derivation store guile system))
  63       (#f                                         ; the default
  64        (let* ((distro (resolve-interface '(gnu packages commencement)))
  65               (guile  (module-ref distro 'guile-final)))
  66          (package-derivation store guile system)))))
  67
  68   (define build
  69     #~(begin
  70         (use-modules (guix build svn))
  71         (svn-fetch '#$(svn-reference-url ref)
  72                    '#$(svn-reference-revision ref)
  73                    #$output
  74                    #:svn-command (string-append #$svn "/bin/svn"))))
  75
  76   (run-with-store store
  77     (gexp->derivation (or name "svn-checkout") build
  78                       #:system system
  79                       ;; FIXME: See <https://bugs.gnu.org/18747>.
  80                       ;;#:local-build? #t
  81                       #:hash-algo hash-algo
  82                       #:hash hash
  83                       #:recursive? #t
  84                       #:modules '((guix build svn)
  85                                   (guix build utils))
  86                       #:guile-for-build guile-for-build
  87                       #:local-build? #t)
  88     #:guile-for-build guile-for-build
  89     #:system system))
  90
  91 ;;; svn-download.scm ends here