[gimp] app: symlink an icon theme into /tmp for running the tests

[Michael Natterer <mitch src gnome org>]

commit a91007756c15bf27b6e2694fd480bf03ff32331c
Author: Michael Natterer <mitch gimp org>
Date:   Tue May 13 17:07:32 2014 +0200

    app: symlink an icon theme into /tmp for running the tests

 app/tests.c |   62 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 62 insertions(+), 0 deletions(-)
---
diff --git a/app/tests.c b/app/tests.c
index 4db041c..db03950 100644
--- a/app/tests.c
+++ b/app/tests.c
@@ -82,6 +82,67 @@ gimp_init_for_testing (void)
 
 #ifndef GIMP_CONSOLE_COMPILATION
 
+static void
+gimp_init_icon_theme_for_testing (void)
+{
+  const gchar *top_srcdir = g_getenv ("GIMP_TESTING_ABS_TOP_SRCDIR");
+  gchar       *icon_root;
+  gchar       *link_name;
+  gchar       *link_target;
+  gint         i;
+
+  static const gchar *sizes[] = { "12x12", "16x16", "18x18", "20x20", "22x22",
+                                  "24x24", "32x32", "48x48", "64x64" };
+
+  if (! top_srcdir)
+    {
+      g_printerr ("*\n"
+                  "*  The env var GIMP_TESTING_ABS_TOP_SRCDIR is not set,\n"
+                  "*  you are probably running in a debugger.\n"
+                  "*  Set it manually, e.g.:\n"
+                  "*\n"
+                  "*    set env GIMP_TESTING_ABS_TOP_SRCDIR=%s/source/gimp\n"
+                  "*\n",
+                  g_get_home_dir ());
+      return;
+    }
+
+  icon_root = g_dir_make_tmp ("gimp-test-icon-theme-XXXXXX", NULL);
+  if (! icon_root)
+    return;
+
+  for (i = 0; i < G_N_ELEMENTS (sizes); i++)
+    {
+      gchar *icon_dir;
+
+      icon_dir = g_build_filename (icon_root, "hicolor", sizes[i], NULL);
+      g_mkdir_with_parents (icon_dir, 0700);
+
+      link_name   = g_build_filename (icon_dir, "apps", NULL);
+      link_target = g_build_filename (top_srcdir, "icons", sizes[i] + 3, NULL);
+
+      symlink (link_target, link_name);
+
+      g_free (link_target);
+      g_free (link_name);
+
+      g_free (icon_dir);
+    }
+
+  link_name   = g_build_filename (icon_root, "hicolor", "index.theme", NULL);
+  link_target = g_build_filename (top_srcdir, "icons", "index.theme", NULL);
+
+  symlink (link_target, link_name);
+
+  g_free (link_target);
+  g_free (link_name);
+
+  gtk_icon_theme_prepend_search_path (gtk_icon_theme_get_default (),
+                                      icon_root);
+
+  g_free (icon_root);
+}
+
 static Gimp *
 gimp_init_for_gui_testing_internal (gboolean     show_gui,
                                     const gchar *gimprc)
@@ -105,6 +166,7 @@ gimp_init_for_gui_testing_internal (gboolean     show_gui,
   gimp_load_config (gimp, gimprc, NULL);
   gimp_gegl_init (gimp);
   gui_init (gimp, TRUE);
+  gimp_init_icon_theme_for_testing ();
   gimp_initialize (gimp, gimp_status_func_dummy);
   gimp_restore (gimp, gimp_status_func_dummy);