Implement "-c" or "--config" to specify a different config folder

If this option is specified the folder is used in place of the
default ~/.config/midori including extension settings.

midori/main.c

@@ -65,10 +65,7 @@ typedef enum
 static gchar*
 build_config_filename (const gchar* filename)
 {
-    static gchar* path = NULL;
-
-    if (!path)
-        path = g_build_filename (g_get_user_config_dir (), PACKAGE_NAME, NULL);
+    const gchar* path = sokoke_set_config_dir (NULL);
     g_mkdir_with_parents (path, 0700);
     return g_build_filename (path, filename, NULL);
 }
@@ -1325,6 +1322,7 @@ int
 main (int    argc,
       char** argv)
 {
+    gchar* config;
     gboolean run;
     gboolean version;
     gchar** uris;
@@ -1333,6 +1331,8 @@ main (int    argc,
     GError* error;
     GOptionEntry entries[] =
     {
+       { "config", 'c', 0, G_OPTION_ARG_FILENAME, &config,
+       N_("Use FOLDER as configuration folder"), N_("FOLDER") },
        { "run", 'r', 0, G_OPTION_ARG_NONE, &run,
        N_("Run the specified filename as javascript"), NULL },
        { "version", 'V', 0, G_OPTION_ARG_NONE, &version,
@@ -1373,6 +1373,7 @@ main (int    argc,
     #endif
 
     /* Parse cli options */
+    config = NULL;
     run = FALSE;
     version = FALSE;
     uris = NULL;
@@ -1411,6 +1412,14 @@ main (int    argc,
     if (run)
         return midori_run_script (uris ? *uris : NULL);
 
+    if (config && !g_path_is_absolute (config))
+    {
+        g_critical (_("The specified configuration folder is invalid."));
+        return 1;
+    }
+    sokoke_set_config_dir (config);
+    g_free (config);
+
     #if HAVE_HILDON
     osso_context = osso_initialize (PACKAGE_NAME, PACKAGE_VERSION, FALSE, NULL);
 

midori/midori-extension.c

@@ -474,7 +474,7 @@ midori_extension_get_config_dir (MidoriExtension* extension)
 
     if (!extension->priv->config_dir)
         extension->priv->config_dir = g_build_filename (
-            g_get_user_config_dir (), PACKAGE_NAME, "extensions",
+            sokoke_set_config_dir (NULL), "extensions",
             extension->priv->name, NULL);
 
     return extension->priv->config_dir;

midori/sokoke.c

@@ -801,3 +801,31 @@ sokoke_register_stock_items (void)
     gtk_icon_factory_add_default (factory);
     g_object_unref (factory);
 }
+
+/**
+ * sokoke_set_config_dir:
+ * @new_config_dir: an absolute path, or %NULL
+ *
+ * Retrieves and/ or sets the base configuration folder.
+ *
+ * Return value: the configuration folder, or %NULL
+ **/
+const gchar*
+sokoke_set_config_dir (const gchar* new_config_dir)
+{
+    static gchar* config_dir = NULL;
+
+    if (config_dir)
+        return config_dir;
+
+    if (!new_config_dir)
+        config_dir = g_build_filename (g_get_user_config_dir (),
+                                       PACKAGE_NAME, NULL);
+    else
+    {
+        g_return_val_if_fail (g_path_is_absolute (new_config_dir), NULL);
+        katze_assign (config_dir, g_strdup (new_config_dir));
+    }
+
+    return config_dir;
+}

midori/sokoke.h

@@ -127,4 +127,7 @@ sokoke_time_t_to_julian              (const time_t*  timestamp);
 void
 sokoke_register_stock_items          (void);
 
+const gchar*
+sokoke_set_config_dir                (const gchar* new_config_dir);
+
 #endif /* !__SOKOKE_H__ */