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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017, 2018 Ricardo Wurmus <rekado@elephly.net>
;;;
;;; 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 minify)
#:use-module (guix store)
#:use-module (guix utils)
#:use-module (guix packages)
#:use-module (guix derivations)
#:use-module (guix search-paths)
#:use-module (guix build-system)
#:use-module (guix build-system gnu)
#:use-module (ice-9 match)
#:use-module (srfi srfi-26)
#:export (%minify-build-system-modules
minify-build
minify-build-system))
;; Commentary:
;;
;; Standard minification procedure for JavaScript files.
;;
;; Code:
(define %minify-build-system-modules
;; Build-side modules imported by default.
`((guix build minify-build-system)
,@%gnu-build-system-modules))
(define (default-uglify-js)
"Return the default package to minify JavaScript source files."
;; Lazily resolve the binding to avoid a circular dependency.
(let ((lisp-mod (resolve-interface '(gnu packages lisp))))
(module-ref lisp-mod 'uglify-js)))
(define* (lower name
#:key source inputs native-inputs outputs system
(uglify-js (default-uglify-js))
#:allow-other-keys
#:rest arguments)
"Return a bag for NAME."
(define private-keywords
'(#:source #:target #:inputs #:native-inputs))
(bag
(name name)
(system system)
(host-inputs `(,@(if source
`(("source" ,source))
'())
,@inputs
,@(standard-packages)))
(build-inputs `(("uglify-js" ,uglify-js)
,@native-inputs))
(outputs outputs)
(build minify-build)
(arguments (strip-keyword-arguments private-keywords arguments))))
(define* (minify-build store name inputs
#:key
(javascript-files #f)
(phases '(@ (guix build minify-build-system)
%standard-phases))
(outputs '("out"))
(system (%current-system))
search-paths
(guile #f)
(imported-modules %minify-build-system-modules)
(modules '((guix build minify-build-system)
(guix build utils))))
"Build SOURCE with INPUTS."
(define builder
`(begin
(use-modules ,@modules)
(minify-build #:name ,name
#:source ,(match (assoc-ref inputs "source")
(((? derivation? source))
(derivation->output-path source))
((source)
source)
(source
source))
#:javascript-files ,javascript-files
#:phases ,phases
#:outputs %outputs
#:search-paths ',(map search-path-specification->sexp
search-paths)
#:inputs %build-inputs)))
(define guile-for-build
(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)))))
(build-expression->derivation store name builder
#:inputs inputs
#:system system
#:modules imported-modules
#:outputs outputs
#:guile-for-build guile-for-build))
(define minify-build-system
(build-system
(name 'minify)
(description "The trivial JavaScript minification build system")
(lower lower)))
;;; minify.scm ends here
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