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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2014 Sree Harsha Totakura <sreeharsha@totakura.in>
;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
;;;
;;; 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 cvs-download)
#:use-module (guix records)
#:use-module (guix gexp)
#:use-module (guix store)
#:use-module (guix monads)
#:use-module (guix packages)
#:use-module (ice-9 match)
#:export (cvs-reference
cvs-reference?
cvs-reference-url
cvs-reference-revision
cvs-fetch))
;;; Commentary:
;;;
;;; An <origin> method that fetches a specific revision or date from a CVS
;;; repository. The CVS-ROOT-DIRECTORY, MODULE and REVISION are specified
;;; with a <cvs-reference> object. REVISION should be specified as either a
;;; date string in ISO-8601 format (e.g. "2012-12-21") or a CVS tag.
;;;
;;; Code:
(define-record-type* <cvs-reference>
cvs-reference make-cvs-reference
cvs-reference?
(root-directory cvs-reference-root-directory) ; string
(module cvs-reference-module) ; string
(revision cvs-reference-revision)) ; string
(define (cvs-package)
"Return the default CVS package."
(let ((distro (resolve-interface '(gnu packages version-control))))
(module-ref distro 'cvs)))
(define* (cvs-fetch ref hash-algo hash
#:optional name
#:key (system (%current-system)) (guile (default-guile))
(cvs (cvs-package)))
"Return a fixed-output derivation that fetches REF, a <cvs-reference>
object. The output is expected to have recursive hash HASH of type
HASH-ALGO (a symbol). Use NAME as the file name, or a generic name if #f."
(define build
(with-imported-modules '((guix build cvs)
(guix build utils))
#~(begin
(use-modules (guix build cvs))
(cvs-fetch '#$(cvs-reference-root-directory ref)
'#$(cvs-reference-module ref)
'#$(cvs-reference-revision ref)
#$output
#:cvs-command (string-append #+cvs "/bin/cvs")))))
(mlet %store-monad ((guile (package->derivation guile system)))
(gexp->derivation (or name "cvs-checkout") build
#:system system
#:hash-algo hash-algo
#:hash hash
#:recursive? #t
#:guile-for-build guile
#:local-build? #t)))
;;; cvs-download.scm ends here
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