guix/cvs-download.scm

   1 ;;; GNU Guix --- Functional package management for GNU
   2 ;;; Copyright © 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
   3 ;;; Copyright © 2014 Sree Harsha Totakura <sreeharsha@totakura.in>
   4 ;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
   5 ;;;
   6 ;;; This file is part of GNU Guix.
   7 ;;;
   8 ;;; GNU Guix is free software; you can redistribute it and/or modify it
   9 ;;; under the terms of the GNU General Public License as published by
  10 ;;; the Free Software Foundation; either version 3 of the License, or (at
  11 ;;; your option) any later version.
  12 ;;;
  13 ;;; GNU Guix is distributed in the hope that it will be useful, but
  14 ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
  15 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 ;;; GNU General Public License for more details.
  17 ;;;
  18 ;;; You should have received a copy of the GNU General Public License
  19 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
  20
  21 (define-module (guix cvs-download)
  22   #:use-module (guix records)
  23   #:use-module (guix gexp)
  24   #:use-module (guix store)
  25   #:use-module (guix monads)
  26   #:use-module (guix packages)
  27   #:use-module (ice-9 match)
  28   #:export (cvs-reference
  29             cvs-reference?
  30             cvs-reference-url
  31             cvs-reference-revision
  32             cvs-fetch))
  33
  34 ;;; Commentary:
  35 ;;;
  36 ;;; An <origin> method that fetches a specific revision or date from a CVS
  37 ;;; repository.  The CVS-ROOT-DIRECTORY, MODULE and REVISION are specified
  38 ;;; with a <cvs-reference> object.  REVISION should be specified as either a
  39 ;;; date string in ISO-8601 format (e.g. "2012-12-21") or a CVS tag.
  40 ;;;
  41 ;;; Code:
  42
  43 (define-record-type* <cvs-reference>
  44   cvs-reference make-cvs-reference
  45   cvs-reference?
  46   (root-directory cvs-reference-root-directory)         ; string
  47   (module         cvs-reference-module)                 ; string
  48   (revision       cvs-reference-revision))              ; string
  49
  50 (define (cvs-package)
  51   "Return the default CVS package."
  52   (let ((distro (resolve-interface '(gnu packages version-control))))
  53     (module-ref distro 'cvs)))
  54
  55 (define* (cvs-fetch ref hash-algo hash
  56                     #:optional name
  57                     #:key (system (%current-system)) (guile (default-guile))
  58                     (cvs (cvs-package)))
  59   "Return a fixed-output derivation that fetches REF, a <cvs-reference>
  60 object.  The output is expected to have recursive hash HASH of type
  61 HASH-ALGO (a symbol).  Use NAME as the file name, or a generic name if #f."
  62   (define build
  63     (with-imported-modules '((guix build cvs)
  64                              (guix build utils))
  65       #~(begin
  66           (use-modules (guix build cvs))
  67           (cvs-fetch '#$(cvs-reference-root-directory ref)
  68                      '#$(cvs-reference-module ref)
  69                      '#$(cvs-reference-revision ref)
  70                      #$output
  71                      #:cvs-command (string-append #+cvs "/bin/cvs")))))
  72
  73   (mlet %store-monad ((guile (package->derivation guile system)))
  74     (gexp->derivation (or name "cvs-checkout") build
  75                       #:system system
  76                       #:hash-algo hash-algo
  77                       #:hash hash
  78                       #:recursive? #t
  79                       #:guile-for-build guile
  80                       #:local-build? #t)))
  81
  82 ;;; cvs-download.scm ends here