;;; 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