[gimp] Set required variables if is running from Apple application bundle



commit 12bc46ce14efa9ea9125068edacd1bf1802f6c79
Author: Oleksii Samorukov <samm os2 kiev ua>
Date:   Sun Nov 3 15:07:46 2019 +0100

    Set required variables if is running from Apple application bundle
    
    (cherry picked with small changes from commit
    e13e7fd8b6a40a96a35cea8015fd90f49aa4b9b0)

 app/main.c | 105 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 105 insertions(+)
---
diff --git a/app/main.c b/app/main.c
index 3bc75cadf7..7fb4fdbe2e 100644
--- a/app/main.c
+++ b/app/main.c
@@ -38,6 +38,12 @@
 
 #endif /* G_OS_WIN32 */
 
+#if defined(ENABLE_RELOCATABLE_RESOURCES) && defined(__APPLE__)
+#include <sys/param.h> /* PATH_MAX */
+#include <libgen.h> /* dirname */
+#include <sys/stat.h>
+#endif /* __APPLE__ */
+
 #ifndef GIMP_CONSOLE_COMPILATION
 #include <gdk/gdk.h>
 #else
@@ -298,6 +304,86 @@ static const GOptionEntry main_entries[] =
   { NULL }
 };
 
+#if defined(ENABLE_RELOCATABLE_RESOURCES) && defined(__APPLE__)
+static void
+gimp_macos_setenv (const char * progname)
+{
+  /* helper to set environment variables for GIMP to be relocatable.
+   * Due to the latest changes it is not recommended to set it in the shell
+   * wrapper anymore.
+   */
+  gchar resolved_path[PATH_MAX];
+  /* on some OSX installations open file limit is 256 and GIMP needs more */
+  struct rlimit limit;
+  limit.rlim_cur = 10000;
+  limit.rlim_max = 10000;
+  setrlimit (RLIMIT_NOFILE, &limit);
+  if (realpath (progname, resolved_path) && !g_getenv ("GIMP_NO_WRAPPER"))
+    {
+      /* set path to the app folder to make sure that our python is called
+       * instead of system one
+       */
+      static gboolean            show_playground   = TRUE;
+
+      gchar *path;
+      gchar  tmp[PATH_MAX];
+      gchar *app_dir;
+      gchar  res_dir[PATH_MAX];
+      size_t path_len;
+      struct stat sb;
+
+      app_dir = g_path_get_dirname (resolved_path);
+      g_snprintf (tmp, sizeof(tmp), "%s/../Resources", app_dir);
+      if (realpath (tmp, res_dir) && !stat (res_dir,&sb) && S_ISDIR (sb.st_mode))
+        g_print ("GIMP is started as MacOS application\n");
+      else
+        return;
+
+      path_len = strlen (g_getenv ("PATH") ? g_getenv ("PATH") : "") + strlen (app_dir) + 2;
+      path = g_try_malloc (path_len);
+      if (path == NULL)
+        {
+          g_warning ("Failed to allocate memory");
+          app_exit (EXIT_FAILURE);
+        }
+      if (g_getenv ("PATH"))
+        g_snprintf (path, path_len, "%s:%s", app_dir, g_getenv ("PATH"));
+      else
+        g_snprintf (path, path_len, "%s", app_dir);
+      g_free (app_dir);
+      g_setenv ("PATH", path, TRUE);
+      g_free (path);
+      g_snprintf (tmp, sizeof(tmp), "%s/lib/gtk-3.0/3.0.0", res_dir);
+      g_setenv ("GTK_PATH", tmp, TRUE);
+      g_snprintf (tmp, sizeof(tmp), "%s/etc/gtk-3.0/gtk.immodules", res_dir);
+      g_setenv ("GTK_IM_MODULE_FILE", tmp, TRUE);
+      g_snprintf (tmp, sizeof(tmp), "%s/lib/gegl-0.4", res_dir);
+      g_setenv ("GEGL_PATH", tmp, TRUE);
+      g_snprintf (tmp, sizeof(tmp), "%s/lib/babl-0.1", res_dir);
+      g_setenv ("BABL_PATH", tmp, TRUE);
+      g_snprintf (tmp, sizeof(tmp), "%s/lib/gdk-pixbuf-2.0/2.10.0/loaders.cache", res_dir);
+      g_setenv ("GDK_PIXBUF_MODULE_FILE", tmp, TRUE);
+      g_snprintf (tmp, sizeof(tmp), "%s/etc/fonts", res_dir);
+      g_setenv ("FONTCONFIG_PATH", tmp, TRUE);
+      g_snprintf (tmp, sizeof(tmp), "%s", res_dir);
+      g_setenv ("PYTHONHOME", tmp, TRUE);
+      g_snprintf (tmp, sizeof(tmp), "%s/lib/python2.7:%s/lib/gimp/2.0/python", res_dir, res_dir);
+      g_setenv ("PYTHONPATH", tmp, TRUE);
+      g_snprintf (tmp, sizeof(tmp), "%s/lib/gio/modules", res_dir);
+      g_setenv ("GIO_MODULE_DIR", tmp, TRUE);
+      g_snprintf (tmp, sizeof(tmp), "%s/share/libwmf/fonts", res_dir);
+      g_setenv ("WMF_FONTDIR", tmp, TRUE);
+      if (g_getenv ("HOME")!=NULL)
+        {
+          g_snprintf (tmp, sizeof(tmp),
+                      "%s/Library/Application Support/GIMP/3.00/cache",
+                      g_getenv("HOME"));
+          g_setenv ("XDG_CACHE_HOME", tmp, TRUE);
+        }
+    }
+}
+#endif
+
 int
 main (int    argc,
       char **argv)
@@ -314,6 +400,25 @@ main (int    argc,
 #ifdef ENABLE_WIN32_DEBUG_CONSOLE
   gimp_open_console_window ();
 #endif
+#if defined(ENABLE_RELOCATABLE_RESOURCES) && defined(__APPLE__)
+  /* remove MacOS session identifier from the command line args */
+  gint newargc = 0;
+  for (gint i = 0; i < argc; i++)
+    {
+      if (!g_str_has_prefix (argv[i], "-psn_"))
+        {
+          argv[newargc] = argv[i];
+          newargc++;
+        }
+    }
+  if (argc > newargc)
+    {
+      argv[newargc] = NULL; /* glib expects NULL terminated array */
+      argc = newargc;
+    }
+
+  gimp_macos_setenv (argv[0]);
+#endif
 
 #if defined (__GNUC__) && defined (_WIN64)
   /* mingw-w64, at least the unstable build from late July 2008,


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