@@ -26,6 +26,8 @@ (define-module (guix build-system glib-or-gtk)
#:use-module (guix monads)
#:use-module (guix derivations)
#:use-module (guix search-paths)
+ #:use-module ((guix build glib-or-gtk-build-system)
+ #:select (%gdk-pixbuf-loaders-cache-file))
#:use-module (guix build-system)
#:use-module (guix build-system gnu)
#:use-module (guix packages)
@@ -33,7 +35,8 @@ (define-module (guix build-system glib-or-gtk)
#:export (%glib-or-gtk-build-system-modules
glib-or-gtk-build
glib-or-gtk-cross-build
- glib-or-gtk-build-system))
+ glib-or-gtk-build-system)
+ #:re-export (%gdk-pixbuf-loaders-cache-file)) ;for convenience
;; Commentary:
;;
@@ -3,6 +3,7 @@
;;; Copyright © 2014, 2015 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2018 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -28,6 +29,8 @@ (define-module (guix build glib-or-gtk-build-system)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:export (%standard-phases
+ %gdk-pixbuf-loaders-cache-file
+ generate-gdk-pixbuf-loaders-cache
glib-or-gtk-build))
;; Commentary:
@@ -183,8 +186,7 @@ (define handle-output
(apply wrap-program program #:sh (sh) env-vars))
bin-list))))))
- (for-each handle-output outputs)
- #t)
+ (for-each handle-output outputs))
(define* (compile-glib-schemas #:key outputs #:allow-other-keys)
"Implement phase \"glib-or-gtk-compile-schemas\": compile \"glib\" schemas
@@ -197,11 +199,56 @@ (define* (compile-glib-schemas #:key outputs #:allow-other-keys)
(not (file-exists?
(string-append schemasdir "/gschemas.compiled"))))
(invoke "glib-compile-schemas" schemasdir)))))
- outputs)
- #t)
+ outputs))
+
+(define %gdk-pixbuf-loaders-cache-file
+ "lib/gdk-pixbuf-2.0/2.10.0/loaders.cache")
+
+(define (generate-gdk-pixbuf-loaders-cache directories outputs)
+ "Generate the loaders.cache file used by gdk-pixbuf to locate the available
+loaders among DIRECTORIES, and set the GDK_PIXBUF_MODULE_FILE environment
+variable. The cache file is installed under OUTPUTS. Return the first cache
+file name if one was created else #f."
+ (let* ((loaders (append-map
+ (cut find-files <> "^libpixbufloader-.*\\.so$")
+ directories))
+ (outputs* (map (cut string-append <> "/"
+ %gdk-pixbuf-loaders-cache-file)
+ outputs))
+ (loaders.cache (first outputs*))
+ (loaders.cache-copies (cdr outputs*)))
+ (if (not (null? loaders))
+ (begin
+ (mkdir-p (dirname loaders.cache))
+ (setenv "GDK_PIXBUF_MODULE_FILE" loaders.cache)
+ (apply invoke "gdk-pixbuf-query-loaders" "--update-cache" loaders)
+ (for-each (lambda (f)
+ (mkdir-p (dirname f))
+ (copy-file loaders.cache f))
+ loaders.cache-copies)
+ loaders.cache)
+ #f)))
+
+(define* (generate-gdk-pixbuf-loaders-cache-file #:key inputs outputs
+ #:allow-other-keys)
+ "Build phase that Wraps the GENERATE-GDK-PIXBUF-LOADERS-CACHE procedure."
+ ;; Conditionally compute the cache file if the gdk-pixbuf command is
+ ;; available on PATH (it comes with gdk-pixbuf).
+ (when (which "gdk-pixbuf-query-loaders")
+ (let ((loaders.cache (generate-gdk-pixbuf-loaders-cache
+ (map cdr inputs)
+ (filter-map identity
+ (list
+ (assoc-ref outputs "out")
+ (assoc-ref outputs "bin")
+ (assoc-ref outputs "lib"))))))
+ (when loaders.cache
+ (format #t "GDK_PIXBUF_MODULE_FILE set to `~a'~%" loaders.cache)))))
(define %standard-phases
(modify-phases gnu:%standard-phases
+ (add-after 'unpack 'generate-gdk-pixbuf-loaders-cache-file
+ generate-gdk-pixbuf-loaders-cache-file)
(add-after 'install 'glib-or-gtk-compile-schemas compile-glib-schemas)
(add-after 'install 'glib-or-gtk-wrap wrap-all-programs)))