guix/cvs-download.scm

   1 ;;; GNU Guix --- Functional package management for GNU
   2 ;;; Copyright © 2014, 2015, 2016, 2017, 2019 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 modules)
  27   #:use-module (guix packages)
  28   #:use-module (ice-9 match)
  29   #:export (cvs-reference
  30             cvs-reference?
  31             cvs-reference-root-directory
  32             cvs-reference-module
  33             cvs-reference-revision
  34             cvs-fetch))
  35
  36 ;;; Commentary:
  37 ;;;
  38 ;;; An <origin> method that fetches a specific revision or date from a CVS
  39 ;;; repository.  The CVS-ROOT-DIRECTORY, MODULE and REVISION are specified
  40 ;;; with a <cvs-reference> object.  REVISION should be specified as either a
  41 ;;; date string in ISO-8601 format (e.g. "2012-12-21") or a CVS tag.
  42 ;;;
  43 ;;; Code:
  44
  45 (define-record-type* <cvs-reference>
  46   cvs-reference make-cvs-reference
  47   cvs-reference?
  48   (root-directory cvs-reference-root-directory)         ; string
  49   (module         cvs-reference-module)                 ; string
  50   (revision       cvs-reference-revision))              ; string
  51
  52 (define (cvs-package)
  53   "Return the default CVS package."
  54   (let ((distro (resolve-interface '(gnu packages version-control))))
  55     (module-ref distro 'cvs)))
  56
  57 (define* (cvs-fetch ref hash-algo hash
  58                     #:optional name
  59                     #:key (system (%current-system)) (guile (default-guile))
  60                     (cvs (cvs-package)))
  61   "Return a fixed-output derivation that fetches REF, a <cvs-reference>
  62 object.  The output is expected to have recursive hash HASH of type
  63 HASH-ALGO (a symbol).  Use NAME as the file name, or a generic name if #f."
  64   (define guile-zlib
  65     (module-ref (resolve-interface '(gnu packages guile)) 'guile-zlib))
  66
  67   (define guile-json
  68     (module-ref (resolve-interface '(gnu packages guile)) 'guile-json-4))
  69
  70   (define gnutls
  71     (module-ref (resolve-interface '(gnu packages tls)) 'gnutls))
  72
  73   (define modules
  74     (delete '(guix config)
  75             (source-module-closure '((guix build cvs)
  76                                      (guix build download-nar)))))
  77   (define build
  78     (with-imported-modules modules
  79       (with-extensions (list guile-json gnutls ;for (guix swh)
  80                              guile-zlib)
  81         #~(begin
  82             (use-modules (guix build cvs)
  83                          (guix build download-nar))
  84
  85             (or (cvs-fetch '#$(cvs-reference-root-directory ref)
  86                            '#$(cvs-reference-module ref)
  87                            '#$(cvs-reference-revision ref)
  88                            #$output
  89                            #:cvs-command (string-append #+cvs "/bin/cvs"))
  90                 (download-nar #$output))))))
  91
  92   (mlet %store-monad ((guile (package->derivation guile system)))
  93     (gexp->derivation (or name "cvs-checkout") build
  94                       #:leaked-env-vars '("http_proxy" "https_proxy"
  95                                           "LC_ALL" "LC_MESSAGES" "LANG"
  96                                           "COLUMNS")
  97                       #:system system
  98                       #:hash-algo hash-algo
  99                       #:hash hash
 100                       #:recursive? #t
 101                       #:guile-for-build guile
 102                       #:local-build? #t)))
 103
 104 ;;; cvs-download.scm ends here