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authorLudovic Courtès <ludo@gnu.org>2016-10-25 00:58:26 +0200
committerLudovic Courtès <ludo@gnu.org>2016-10-25 01:21:28 +0200
commitffde82c9ecf99524220e463055f4f18c8c9e7a81 (patch)
tree79542b7085068a0f206e68a194acd53c8810b4a0 /gnu/system
parentd91025e3d0f7a30b38798bc4ef9c0f96d3f85db7 (diff)
downloadguix-ffde82c9ecf99524220e463055f4f18c8c9e7a81.tar
guix-ffde82c9ecf99524220e463055f4f18c8c9e7a81.tar.gz
system: grub: Use Guile-{RSVG,Cairo} instead of Inkscape + ImageMagick.
Based on a suggestion by Andy Wingo at <https://lists.gnu.org/archive/html/guix-devel/2015-08/msg00753.html>. * gnu/build/svg.scm: New file. * gnu/local.mk (GNU_SYSTEM_MODULES): Add it. * gnu/system/grub.scm (svg->png): Add #:width and #:height. Rewrite to use (gnu build svg). (resize-image): Remove. (grub-background-image): Adjust accordingly.
Diffstat (limited to 'gnu/system')
-rw-r--r--gnu/system/grub.scm41
1 files changed, 19 insertions, 22 deletions
diff --git a/gnu/system/grub.scm b/gnu/system/grub.scm
index ead48f0e32..249b415ab4 100644
--- a/gnu/system/grub.scm
+++ b/gnu/system/grub.scm
@@ -27,9 +27,8 @@
#:use-module (gnu artwork)
#:use-module (gnu system file-systems)
#:autoload (gnu packages grub) (grub)
- #:autoload (gnu packages inkscape) (inkscape)
- #:autoload (gnu packages imagemagick) (imagemagick)
#:autoload (gnu packages compression) (gzip)
+ #:autoload (gnu packages gtk) (guile-cairo guile-rsvg)
#:use-module (ice-9 match)
#:use-module (ice-9 regex)
#:use-module (srfi srfi-1)
@@ -132,25 +131,23 @@ object denoting a file name."
;;; Background image & themes.
;;;
-(define (svg->png svg)
- "Build a PNG from SVG."
- ;; Don't use #:local-build? so that it's substitutable.
+(define* (svg->png svg #:key width height)
+ "Build a PNG of HEIGHT x WIDTH from SVG."
(gexp->derivation "grub-image.png"
- #~(zero?
- (system* (string-append #$inkscape "/bin/inkscape")
- "--without-gui"
- (string-append "--export-png=" #$output)
- #$svg))))
-
-(define (resize-image image width height)
- "Resize IMAGE to WIDTHxHEIGHT."
- ;; Don't use #:local-build? so that it's substitutable.
- (let ((size (string-append (number->string width)
- "x" (number->string height))))
- (gexp->derivation "grub-image.resized.png"
- #~(zero?
- (system* (string-append #$imagemagick "/bin/convert")
- "-resize" #$size #$image #$output)))))
+ (with-imported-modules '((gnu build svg))
+ #~(begin
+ ;; We need these two libraries.
+ (add-to-load-path (string-append #$guile-rsvg
+ "/share/guile/site/"
+ (effective-version)))
+ (add-to-load-path (string-append #$guile-cairo
+ "/share/guile/site/"
+ (effective-version)))
+
+ (use-modules (gnu build svg))
+ (svg->png #$svg #$output
+ #:width #$width
+ #:height #$height)))))
(define* (grub-background-image config #:key (width 1024) (height 768))
"Return the GRUB background image defined in CONFIG with a ratio of
@@ -160,8 +157,8 @@ WIDTH/HEIGHT, or #f if none was found."
(= (grub-image-aspect-ratio image) ratio))
(grub-theme-images (grub-configuration-theme config)))))
(if image
- (mlet %store-monad ((png (svg->png (grub-image-file image))))
- (resize-image png width height))
+ (svg->png (grub-image-file image)
+ #:width width #:height height)
(with-monad %store-monad
(return #f)))))