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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2014 Sree Harsha Totakura <sreeharsha@totakura.in>
;;;
;;; 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 svn-download)
#:use-module (guix records)
#:use-module (guix derivations)
#:use-module (guix packages)
#:use-module (ice-9 match)
#:export (svn-reference
svn-reference?
svn-reference-url
svn-reference-revision
svn-fetch))
;;; Commentary:
;;;
;;; An <origin> method that fetches a specific revision from a Subversion
;;; repository. The repository URL and REVISION are specified with a
;;; <svn-reference> object. REVISION should be specified as a number.
;;;
;;; Code:
(define-record-type* <svn-reference>
svn-reference make-svn-reference
svn-reference?
(url svn-reference-url) ; string
(revision svn-reference-revision)) ; number
(define* (svn-fetch store ref hash-algo hash
#:optional name
#:key (system (%current-system)) guile svn)
"Return a fixed-output derivation in STORE that fetches REF, a
<svn-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 guile-for-build
(match guile
((? package?)
(package-derivation store guile system))
(#f ; the default
(let* ((distro (resolve-interface '(gnu packages base)))
(guile (module-ref distro 'guile-final)))
(package-derivation store guile system)))))
(define svn-for-build
(match svn
((? package?)
(package-derivation store svn system))
(#f ; the default
(let* ((distro (resolve-interface '(gnu packages version-control)))
(svn (module-ref distro 'subversion)))
(package-derivation store svn system)))))
(let* ((command (string-append (derivation->output-path svn-for-build)
"/bin/svn"))
(builder `(begin
(use-modules (guix build svn))
(svn-fetch ',(svn-reference-url ref)
',(svn-reference-revision ref)
%output
#:svn-command ',command))))
(build-expression->derivation store (or name "svn-checkout") builder
#:system system
#:local-build? #t
#:inputs `(("svn" ,svn-for-build))
#:hash-algo hash-algo
#:hash hash
#:recursive? #t
#:modules '((guix build svn)
(guix build utils))
#:guile-for-build guile-for-build
#:local-build? #t)))
;;; svn-download.scm ends here
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