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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2013 Cyril Roelandt <tipecaml@gmail.com>
;;; Copyright © 2014 Federico Beffa <beffa@fbengineering.ch>
;;;
;;; 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 glib-or-gtk)
#:use-module (guix store)
#:use-module (guix utils)
#:use-module (guix derivations)
#:use-module (guix search-paths)
#:use-module (guix build-system)
#:use-module (guix build-system gnu)
#:use-module (guix packages)
#:use-module (ice-9 match)
#:export (%glib-or-gtk-build-system-modules
glib-or-gtk-build
glib-or-gtk-build-system))
;; Commentary:
;;
;; This build system is an extension of the 'gnu-build-system'. It
;; accomodates the needs of applications making use of glib or gtk+ (with "or"
;; to be interpreted in the mathematical sense). This is achieved by adding
;; three phases run after the 'install' phase:
;;
;; 'glib-or-gtk-wrap' phase:
;;
;; a) This phase looks for GSettings schemas, GIO modules and theming data.
;; If any of these is found in any input package, then all programs in
;; "out/bin" are wrapped in scripts defining the nedessary environment
;; variables.
;;
;; b) Looks for the existence of "libdir/gtk-3.0" directories in all input
;; packages. If any is found, then the environment variable "GTK_PATH" is
;; suitably set and added to the wrappers. The variable "GTK_PATH" has been
;; preferred over "GTK_EXE_PREFIX" because the latter can only point to a
;; single directory, while we may need to point to several ones.
;;
;; 'glib-or-gtk-compile-schemas' phase:
;;
;; Looks for the presence of "out/share/glib-2.0/schemas". If that directory
;; exists and does not include a file named "gschemas.compiled", then
;; "glib-compile-schemas" is run in that directory.
;;
;; 'glib-or-gtk-icon-cache' phase:
;;
;; Looks for the existence of icon themes and, if no cache exists, generate
;; the "icon-theme.cache" file.
;;
;; Code:
(define %default-modules
;; Build-side modules made available in the build environment.
'((guix build glib-or-gtk-build-system)
(guix build utils)))
(define %glib-or-gtk-build-system-modules
;; Build-side modules imported and used by default.
`((guix build glib-or-gtk-build-system)
,@%gnu-build-system-modules))
(define (default-glib)
"Return the default glib package from which we use
\"glib-compile-schemas\"."
;; Do not use `@' to avoid introducing circular dependencies.
(let ((module (resolve-interface '(gnu packages glib))))
(module-ref module 'glib)))
(define (default-gtk+)
"Return the default gtk+ package from which we use
\"gtk-update-icon-cache\"."
(let ((module (resolve-interface '(gnu packages gtk))))
(module-ref module 'gtk+)))
(define* (lower name
#:key source inputs native-inputs outputs system target
(glib (default-glib)) (gtk+ (default-gtk+))
(implicit-inputs? #t)
(strip-binaries? #t)
#:allow-other-keys
#:rest arguments)
"Return a bag for NAME."
(define private-keywords
'(#:source #:target #:glib #:gtk+ #:inputs #:native-inputs
#:outputs #:implicit-inputs?))
(and (not target) ;XXX: no cross-compilation
(bag
(name name)
(system system)
(host-inputs `(,@(if source
`(("source" ,source))
'())
,@inputs))
(build-inputs `(("glib:bin" ,glib "bin") ; to compile schemas
("gtk+" ,gtk+) ; to generate icon cache
,@(if implicit-inputs?
(standard-packages)
'())
,@native-inputs))
(outputs outputs)
(build glib-or-gtk-build)
(arguments (strip-keyword-arguments private-keywords arguments)))))
(define* (glib-or-gtk-build store name inputs
#:key (guile #f)
(outputs '("out"))
(search-paths '())
(configure-flags ''())
(make-flags ''())
(out-of-source? #t)
(tests? #t)
(test-target "check")
(parallel-build? #t)
(parallel-tests? #t)
(validate-runpath? #t)
(patch-shebangs? #t)
(strip-binaries? #t)
(strip-flags ''("--strip-debug"))
(strip-directories ''("lib" "lib64" "libexec"
"bin" "sbin"))
(phases '(@ (guix build glib-or-gtk-build-system)
%standard-phases))
(glib-or-gtk-wrap-excluded-outputs ''())
(system (%current-system))
(imported-modules %glib-or-gtk-build-system-modules)
(modules %default-modules)
allowed-references)
"Build SOURCE with INPUTS. See GNU-BUILD for more details."
(define canonicalize-reference
(match-lambda
((? package? p)
(derivation->output-path (package-derivation store p system)))
(((? package? p) output)
(derivation->output-path (package-derivation store p system)
output))
((? string? output)
output)))
(define builder
`(begin
(use-modules ,@modules)
(glib-or-gtk-build #:source ,(match (assoc-ref inputs "source")
(((? derivation? source))
(derivation->output-path source))
((source)
source)
(source
source))
#:system ,system
#:outputs %outputs
#:inputs %build-inputs
#:search-paths ',(map search-path-specification->sexp
search-paths)
#:phases ,phases
#:glib-or-gtk-wrap-excluded-outputs
,glib-or-gtk-wrap-excluded-outputs
#:configure-flags ,configure-flags
#:make-flags ,make-flags
#:out-of-source? ,out-of-source?
#:tests? ,tests?
#:test-target ,test-target
#:parallel-build? ,parallel-build?
#:parallel-tests? ,parallel-tests?
#:validate-runpath? ,validate-runpath?
#:patch-shebangs? ,patch-shebangs?
#:strip-binaries? ,strip-binaries?
#:strip-flags ,strip-flags
#:strip-directories ,strip-directories)))
(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
#:system system
#:inputs inputs
#:modules imported-modules
#:outputs outputs
#:allowed-references
(and allowed-references
(map canonicalize-reference
allowed-references))
#:guile-for-build guile-for-build))
(define glib-or-gtk-build-system
(build-system
(name 'glib-or-gtk)
(description
"The GNU Build System—i.e., ./configure && make && make install,
augmented with definition of suitable environment variables for glib and gtk+
in program wrappers.")
(lower lower)))
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