build, tools, gimp-data: removing gimp_exe_config_dir from the root meson.build.

Creating a temporary config directory for the in-build GIMP (run as a tool or
for unit-testing) is not done as a build target anymore, but in the
in-build-gimp.sh script as a unique temp directory, then cleaned out on exit.
This has a few advantages:

- It is properly cleaned out once the build ends (instead of leaving a full
  config dir as trash inside the build dir).
- It is not reused from one build to another (with risk of carrying bugs and
  issues over).
- Every use of the in-build GIMP will have its own config directory, and in
  particular when they are called in parallel.

As a side update, make sure that all `gimp_exe` runs depend on
`gimp_exe_depends`.

.gitlab-ci.yml

@@ -278,7 +278,9 @@ gimp-debian-x64:
     # and appstream-cli get confused with our exotic naming and fails
     - cd ..
     - git apply -v build/linux/appimage/patches/0001-desktop-po-Use-reverse-DNS-naming.patch
-    - git apply -v build/linux/appimage/patches/0001-images-logo-Use-reverse-DNS-naming.patch
+    - cd gimp-data
+    - git apply -v ../build/linux/appimage/patches/0001-images-logo-Use-reverse-DNS-naming.patch
+    - cd ..
     - meson configure _build${ARTIFACTS_SUFFIX} -Drelocatable-bundle=yes -Dvector-icons=true
     - cd _build${ARTIFACTS_SUFFIX}
     - ninja

build/linux/appimage/patches/0001-images-logo-Use-reverse-DNS-naming.patch

@@ -1,16 +1,16 @@
-From f84e5cdc3e671491e45ec839af97f61e2272d78c Mon Sep 17 00:00:00 2001
+From dfd4f599b80883a649175dd76a2f2ea71388cc18 Mon Sep 17 00:00:00 2001
 From: Bruno Lopes <brunolopesdsilv@outlook.com>
-Date: Sat, 30 Mar 2024 16:13:10 -0300
+Date: Sun, 21 Apr 2024 20:22:35 -0300
 Subject: [PATCH] images/logo: Use reverse DNS naming
 
 ---
- gimp-data/images/logo/meson.build | 8 ++++----
+ images/logo/meson.build | 8 ++++----
  1 file changed, 4 insertions(+), 4 deletions(-)
 
-diff --git a/gimp-data/images/logo/meson.build b/gimp-data/images/logo/meson.build
+diff --git a/images/logo/meson.build b/images/logo/meson.build
-index bf0a5ea..4ec96a1 100644
+index 394a9a3..8af98eb 100644
---- a/gimp-data/images/logo/meson.build
+--- a/images/logo/meson.build
-+++ b/gimp-data/images/logo/meson.build
++++ b/images/logo/meson.build
 @@ -57,21 +57,21 @@ desktop_sizes = [
  foreach size : desktop_sizes
    sizedir = size + 'x' + size
@@ -35,7 +35,7 @@ index bf0a5ea..4ec96a1 100644
 -             rename: 'gimp.svg')
 +             rename: 'org.gimp.GIMP.svg')
  
- ## gimp.ico (Windows) ##
+ ## gimp.ico and fileicon.ico (Windows) ##
  
 -- 
 2.44.0.windows.1

build/windows/store/Assets/meson.build

@@ -130,6 +130,7 @@ foreach scale : scales
   med_tile = custom_target(icon_name,
                            input : [ gen_medtile_py ],
                            depend_files: [ wilber_path ],
+                           depends: [ gimp_exe_depends ],
                            output: [ icon_name ],
                            command: [ gimp_exe, '-nidfs',
                                       '--batch-interpreter', 'python-fu-eval',
@@ -167,6 +168,7 @@ foreach scale : scales
   small_tile = custom_target(icon_name,
                              input : [ gen_smalltile_py ],
                              depend_files: [ wilber_path ],
+                             depends: [ gimp_exe_depends ],
                              output: [ icon_name ],
                              command: [ gimp_exe, '-nidfs',
                                         '--batch-interpreter', 'python-fu-eval',
@@ -202,6 +204,7 @@ foreach scale : scales
   large_tile = custom_target(icon_name,
                              input : [ gen_largetile_py ],
                              depend_files: [ wilber_path ],
+                             depends: [ gimp_exe_depends ],
                              output: [ icon_name ],
                              command: [ gimp_exe, '-nidfs',
                                         '--batch-interpreter', 'python-fu-eval',
@@ -240,6 +243,7 @@ foreach scale : scales
   wide_tile = custom_target(icon_name,
                             input : [ gen_widetile_py ],
                             depend_files: [ wilber_path ],
+                            depends: [ gimp_exe_depends ],
                             output: [ icon_name ],
                             command: [ gimp_exe, '-nidfs',
                                        '--batch-interpreter', 'python-fu-eval',
@@ -273,6 +277,7 @@ foreach scale : scales
   custom_target(icon_name,
                 input : [ gen_fileicon_py ],
                 depend_files: [ wilber_path, fileicon_path ],
+                depends: [ gimp_exe_depends ],
                 output: [ icon_name ],
                 command: [ gimp_exe, '-nidfs',
                            '--batch-interpreter', 'python-fu-eval',
@@ -294,6 +299,7 @@ foreach size : sizes
   custom_target(icon_name,
                 input : [ gen_fileicon_py ],
                 depend_files: [ wilber_path, fileicon_path ],
+                depends: [ gimp_exe_depends ],
                 output: [ icon_name ],
                 command: [ gimp_exe, '-nidfs',
                             '--batch-interpreter', 'python-fu-eval',
@@ -316,11 +322,11 @@ gen_new_xcf_py = configure_file(
 xcf_file = custom_target('New_GIMP_Project.xcf',
                          input : [ gen_new_xcf_py ],
                          depend_files: [ wilber_path ],
+                         depends: [ gimp_exe_depends ],
                          output: [ 'New_GIMP_Project.xcf', ],
                          command: [ gimp_exe, '-nidfs',
                                     '--batch-interpreter', 'python-fu-eval',
                                     '-b', '-', '--quit'],
                          feed: true,
                          build_by_default: true,
-  env: gimp_run_env
+                         env: gimp_run_env)
-)

gimp-data

@@ -1 +1 @@
-Subproject commit d77c9c4c2d3d44c181b1aac1fffeafb0c44f6626
+Subproject commit e9762d29e2730786b313663dfba491b8da348e89

meson.build

@@ -1850,6 +1850,7 @@ subdir('app-tools')
 # tool.
 
 gimp_run_env=environment()
+gimp_run_env.set('GIMP_GLOBAL_BUILD_ROOT', meson.global_build_root())
 
 if meson.can_run_host_binaries()
   if enable_console_bin
@@ -1899,8 +1900,6 @@ if meson.can_run_host_binaries()
   elif platform_osx
     gimp_exe_depends += [gimp_exe_typelib]
 
-    gimp_run_env.set('GIMP_GLOBAL_BUILD_ROOT', meson.global_build_root())
-
     gimp_run_env.set('GIMP_GI_DIR', gi.get_variable('libdir'))
 
     gimp_run_env.set('GIMP_TEMP_UPDATE_RPATH', gimp_real_exe.full_path())
@@ -1932,19 +1931,6 @@ endif
 
 gimp_exe = find_program('tools'/'in-build-gimp.sh')
 
-# Use a temporary config directory in the top build root for 2 reasons: first
-# because we don't want to pollute any existing user config folder; second
-# because the default directory may not be writable (we have the case in macOS
-# CI), but the build dir always is.
-# XXX We might also want to delete this directory before every use, especially
-# when using the binary for testing (ensuring we always start from a fresh
-# config). But for now, let's keep it as-is.
-gimp_exe_config_dir = custom_target('gimp_exe_config_dir',
-                                    output: [ '.tmp-config' ],
-                                    command: [ 'mkdir', '-p', '@OUTDIR@' + '/.tmp-config' ],
-                                    build_by_default: true)
-gimp_run_env.set('GIMP3_DIRECTORY', gimp_exe_config_dir.full_path())
-
 ################################################################################
 # Subdirs: part 2
 

tools/in-build-gimp.sh

@@ -2,6 +2,9 @@
 
 set -e
 
+export GIMP3_DIRECTORY=$(mktemp -d ${GIMP_GLOBAL_BUILD_ROOT}/.GIMP3-build-config-XXX)
+echo INFO: temporary GIMP configuration directory: $GIMP3_DIRECTORY
+
 if [ -n "$GIMP_TEMP_UPDATE_RPATH" ]; then
   # Earlier code used to set DYLD_LIBRARY_PATH environment variable instead, but
   # it didn't work on contributor's builds because of System Integrity
@@ -38,3 +41,27 @@ if [ -n "$GIMP_TEMP_UPDATE_RPATH" ]; then
   done;
   unset IFS
 fi
+
+# Clean-up the temporary config directory after each usage, yet making sure we
+# don't get tricked by weird redirections or anything of the sort. In particular
+# we check that this is a directory with user permission, not a symlink, and
+# that it's inside inside the project build's root.
+if [ -n "$GIMP3_DIRECTORY" ] && [ -d "$GIMP3_DIRECTORY" ] && [ -O "$GIMP3_DIRECTORY" ]; then
+  if [ -L "$GIMP3_DIRECTORY" ]; then
+    echo "ERROR: \$GIMP3_DIRECTORY ($GIMP3_DIRECTORY) should not be a symlink."
+    exit 1
+  fi
+  used_dir_prefix=$(realpath "$GIMP3_DIRECTORY")
+  used_dir_prefix=${used_dir_prefix%???}
+  tmpl_dir_prefix=$(realpath "$GIMP_GLOBAL_BUILD_ROOT/.GIMP3-build-config-")
+  if [ "$used_dir_prefix" != "$tmpl_dir_prefix" ]; then
+    echo "ERROR: \$GIMP3_DIRECTORY ($GIMP3_DIRECTORY) should be under the build directory with a specific prefix."
+    echo "       \"$used_dir_prefix\" != \"$tmpl_dir_prefix\""
+    exit 1
+  fi
+  echo INFO: Running: rm -fr --preserve-root --one-file-system \"$GIMP3_DIRECTORY\"
+  rm -fr --preserve-root --one-file-system "$GIMP3_DIRECTORY"
+else
+  echo "ERROR: \$GIMP3_DIRECTORY ($GIMP3_DIRECTORY) is not a directory or does not belong to the user"
+  exit 1
+fi