From bcb9f5c73a6fdeec6e06076ca03b5df63cc1c7ac Mon Sep 17 00:00:00 2001
From: Bruno Lopes <brunvonlope@outlook.com>
Date: Fri, 23 Jan 2026 07:51:39 -0300
Subject: [PATCH] build/linux: Add super-privileged 'personal-files' interface
 to GIMP snap

See: #15547

This needs approval from Cannonical and allows migrating app data from
older versions as well writting current app data outside the sandbox.
---
 build/linux/snap/snapcraft.yaml |  5 +++++
 libgimpbase/gimpenv.c           | 17 +++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/build/linux/snap/snapcraft.yaml b/build/linux/snap/snapcraft.yaml
index dafdb68555..79954f08aa 100644
--- a/build/linux/snap/snapcraft.yaml
+++ b/build/linux/snap/snapcraft.yaml
@@ -41,6 +41,7 @@ apps:
       - intel-npu
       - npu-libs
       - gimp-plugins
+      - gimp-config
     extensions: [gnome]
 
 layout:
@@ -68,6 +69,10 @@ plugs:
     interface: content
     content: gimp-plugins-3
     target: $SNAP/gimp-plugins
+  gimp-config:
+    interface: personal-files
+    write:
+      - $HOME/.config/GIMP
 
 parts:
   buildenv:
diff --git a/libgimpbase/gimpenv.c b/libgimpbase/gimpenv.c
index 0af4f2f653..3cc12b414a 100644
--- a/libgimpbase/gimpenv.c
+++ b/libgimpbase/gimpenv.c
@@ -361,6 +361,23 @@ gimp_directory (void)
                                           NULL);
         }
 
+      const gchar *snap_path = g_getenv ("SNAP");
+      if (snap_path && g_file_test (snap_path, G_FILE_TEST_IS_DIR))
+        {
+          const gchar *snap_real_home = g_getenv ("SNAP_REAL_HOME");
+
+          if (snap_real_home == NULL)
+            gimp_dir =  g_build_filename (g_get_home_dir (),
+                                          ".config",
+                                          GIMPDIR, GIMP_USER_VERSION,
+                                          NULL);
+          else
+            gimp_dir =  g_build_filename (snap_real_home,
+                                          ".config",
+                                          GIMPDIR, GIMP_USER_VERSION,
+                                          NULL);
+        }
+
       if (gimp_dir == NULL)
         {
           /* g_get_user_config_dir () always returns a path as a non-null