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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.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 build-system trivial)
#:use-module (guix store)
#:use-module (guix utils)
#:use-module (guix derivations)
#:use-module (guix packages)
#:use-module (guix build-system)
#:use-module (ice-9 match)
#:export (trivial-build-system))
(define (guile-for-build store guile system)
(match guile
((? package?)
(package-derivation store guile system #:graft? #f))
(#f ; the default
(let* ((distro (resolve-interface '(gnu packages commencement)))
(guile (module-ref distro 'guile-final)))
(package-derivation store guile system #:graft? #f)))))
(define* (lower name
#:key source inputs native-inputs outputs system target
guile builder modules)
"Return a bag for NAME."
(bag
(name name)
(system system)
(target target)
(host-inputs `(,@(if source
`(("source" ,source))
'())
,@inputs))
(build-inputs native-inputs)
(outputs outputs)
(build (if target trivial-cross-build trivial-build))
(arguments `(#:guile ,guile
#:builder ,builder
#:modules ,modules))))
(define* (trivial-build store name inputs
#:key
outputs guile system builder (modules '())
search-paths)
"Run build expression BUILDER, an expression, for SYSTEM. SOURCE is
ignored."
(build-expression->derivation store name builder
#:inputs inputs
#:system system
#:outputs outputs
#:modules modules
#:guile-for-build
(guile-for-build store guile system)))
(define* (trivial-cross-build store name
#:key
target native-drvs target-drvs
outputs guile system builder (modules '())
search-paths native-search-paths)
"Run build expression BUILDER, an expression, for SYSTEM. SOURCE is
ignored."
(build-expression->derivation store name builder
#:inputs (append native-drvs target-drvs)
#:system system
#:outputs outputs
#:modules modules
#:guile-for-build
(guile-for-build store guile system)))
(define trivial-build-system
(build-system
(name 'trivial)
(description
"Trivial build system, to run arbitrary Scheme build expressions")
(lower lower)))
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