* guix/profiles.scm (gtk-icon-themes): New function.
(%default-profile-hooks): Add it.
---
guix/profiles.scm | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 78 insertions(+), 1 deletion(-)
diff --git a/guix/profiles.scm b/guix/profiles.scm
index 11d9bf0..33cdb28 100644
--- a/guix/profiles.scm
+++ b/guix/profiles.scm
@@ -3,6 +3,7 @@
;;; Copyright © 2013 Nikita Karetnikov <nik...@karetnikov.org>
;;; Copyright © 2014 Alex Kost <alez...@gmail.com>
;;; Copyright © 2015 Mark H Weaver <m...@netris.org>
+;;; Copyright © 2015 Sou Bunnbu <iyzs...@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -573,12 +574,88 @@ MANIFEST. Single-file bundles are required by programs
such as Git and Lynx."
#:modules '((guix build utils))
#:local-build? #t))
+(define (gtk-icon-themes manifest)
+ "Return a derivation that unions all icon themes from manifest entries and
+creates the GTK+ 'icon-theme.cache' file for each icon theme."
+ (define (entry-lookup-gtk+ store entry)
+ "Return the GTK+ package or store path referenced by the manifest ENTRY, or
+#f if not referenced."
+ ;; Find GTK+ in a list of packages.
+ (define (by-packages packages)
+ (find (lambda (package)
+ (equal? "gtk+" (package-name package)))
+ packages))
+
+ ;; Find GTK+ in a list of store paths.
+ (define (by-paths paths)
+ (find (lambda (path)
+ (equal? "gtk+"
+ (package-name->name+version
+ (store-path-package-name path))))
+ paths))
+
+ (match (manifest-entry-item entry)
+ ((? package? package)
+ (by-packages (delete-duplicates
+ (map cadr (package-transitive-inputs package)))))
+ ((? string? path)
+ (by-paths (references store path)))))
+
+ (define (manifest-lookup-gtk+ store manifest)
+ "Return the first GTK+ package or store path referenced by MANIFEST
entries,
+or #f if not referenced by any entry."
+ (any (cut entry-lookup-gtk+ store <>) (manifest-entries manifest)))
+
+ (define gtk+
+ (with-store store
+ (manifest-lookup-gtk+ store manifest)))
+
+ (define build
+ #~(begin
+ (use-modules (guix build utils)
+ (guix build union)
+ (srfi srfi-26)
+ (ice-9 ftw))
+ (let* ((destdir (string-append #$output "/share/icons"))
+ (icons (filter file-exists?
+ (map (cut string-append <> "/share/icons")
+ '#$(manifest-inputs manifest))))
+ (update-icon-cache (string-append
+ #+gtk+ "/bin/gtk-update-icon-cache")))
+
+ ;; XXX: Should move to (guix build utils).
+ (define ensure-writable-directory
+ (@@ (guix build profiles) ensure-writable-directory))
+
+ ;; Union all the icons.
+ (mkdir-p (string-append #$output "/share"))
+ (union-build destdir icons)
+ ;; Update the 'icon-theme.cache' file for each icon theme.
+ (for-each
+ (lambda (theme)
+ (let ((dir (string-append #$output "/share/icons/" theme)))
+ (ensure-writable-directory dir)
+ (system* update-icon-cache "-t" dir)))
+ (scandir destdir (negate (cut member <> '("." ".."))))))))
+
+ ;; Don't run the hook when there's nothing to do.
+ (if gtk+
+ (gexp->derivation "gtk-icon-themes" build
+ #:modules '((guix build utils)
+ (guix build union)
+ (guix build profiles)
+ (guix search-paths)
+ (guix records))
+ #:local-build? #t)
+ #f))
+
(define %default-profile-hooks
;; This is the list of derivation-returning procedures that are called by
;; default when making a non-empty profile.
(list info-dir-file
ghc-package-cache-file
- ca-certificate-bundle))
+ ca-certificate-bundle
+ gtk-icon-themes))
(define* (profile-derivation manifest
#:key
--
2.2.1
