GNU bug report logs - #77251
[PATCH] guix: gtk-icon-themes: produce only cache in output

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Rutherther <rutherther <at> ditigal.xyz>
To: guix-patches <at> gnu.org
Cc: Rutherther <rutherther <at> ditigal.xyz>
Subject: [PATCH] guix: gtk-icon-themes: produce only cache in output
Date: Tue, 25 Mar 2025 15:36:53 +0100

This patch changes the behavior of gtk-icon-themes to produce only the
icon-theme.cache cache files, instead of producing the whole union.
The reason for this is that by producing the whole union, the icons are put to
the profile twice. This throws off the union build of the profile and symlinks
all the individual files instead of symlinking folders. This means
unnecessarily high numbers of symlinks are produced.

* guix/profiles.scm (gtk-icon-themes): Produce only caches

Change-Id: Ia452565768753b8a60baf4fc075f6fe5ebb4fa39
---
 guix/profiles.scm | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/guix/profiles.scm b/guix/profiles.scm
index fb4dbc5bd0..2dda574e03 100644
--- a/guix/profiles.scm
+++ b/guix/profiles.scm
@@ -1382,23 +1382,32 @@ (define* (gtk-icon-themes manifest #:optional system)
             (let* ((destdir  (string-append #$output "/share/icons"))
                    (icondirs (filter file-exists?
                                      (map (cut string-append <> "/share/icons")
-                                          '#$(manifest-inputs manifest)))))
+                                          '#$(manifest-inputs manifest))))
+                   (cache-file-name "icon-theme.cache")
+                   (scratchdir (string-append (getcwd) "/icons")))
+
+              (mkdir-p destdir)
 
               ;; Union all the icons.
-              (mkdir-p (string-append #$output "/share"))
-              (union-build destdir icondirs
+              (union-build scratchdir icondirs
                            #:log-port (%make-void-port "w"))
 
               ;; Update the 'icon-theme.cache' file for each icon theme.
               (for-each
                (lambda (theme)
-                 (let ((dir (string-append destdir "/" theme)))
-                   ;; Occasionally DESTDIR contains plain files, such as
+                 (let* ((dir (string-append scratchdir "/" theme))
+                        (cache-file (string-append dir "/" cache-file-name)))
+                   ;; Occasionally SCRATCHDIR contains plain files, such as
                    ;; "abiword_48.png".  Ignore these.
                    (when (file-is-directory? dir)
                      (ensure-writable-directory dir)
-                     (system* #+gtk-update-icon-cache "-t" dir "--quiet"))))
-               (scandir destdir (negate (cut member <> '("." "..")))))))))
+                     (system* #+gtk-update-icon-cache "-t" dir "--quiet")
+                     (when (file-exists? cache-file)
+                       (mkdir-p (string-append destdir "/" theme))
+                       (copy-file
+                        cache-file
+                        (string-append destdir "/" theme "/" cache-file-name))))))
+               (scandir scratchdir (negate (cut member <> '("." "..")))))))))
 
     ;; Don't run the hook when there's nothing to do.
     (if %gtk+

base-commit: fbfd2b93831978aadbb96f32cafdab997b04c6c6
--
2.49.0

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