[rygel] Re-use existing description

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 15d485ac106dde56651fbe9f8762c1f6e35ba1b5
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Sat May 23 02:34:57 2009 +0300

    Re-use existing description
    
    No need to always build the description from template. This will allow
    us to keep some modification to the description limited to first time
    user runs rygel.
---
 src/rygel/rygel-media-server-factory.vala |   20 ++++++++++++++++----
 1 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/src/rygel/rygel-media-server-factory.vala b/src/rygel/rygel-media-server-factory.vala
index 7f40a9d..0315316 100644
--- a/src/rygel/rygel-media-server-factory.vala
+++ b/src/rygel/rygel-media-server-factory.vala
@@ -76,12 +76,18 @@ public class Rygel.MediaServerFactory {
 
     private Xml.Doc * create_desc (Plugin plugin,
                                    string desc_path) throws GLib.Error {
-        var orig_desc_path = Path.build_filename (BuildConfig.DATA_DIR,
-                                                  DESC_DOC);
+        string path;
 
-        Xml.Doc *doc = Xml.Parser.parse_file (orig_desc_path);
+        if (this.check_path_exist (desc_path)) {
+            path = desc_path;
+        } else {
+            /* Use the template */
+            path = Path.build_filename (BuildConfig.DATA_DIR, DESC_DOC);
+        }
+
+        Xml.Doc *doc = Xml.Parser.parse_file (path);
         if (doc == null) {
-            string message = "Failed to parse %s".printf (orig_desc_path);
+            string message = "Failed to parse %s".printf (path);
 
             throw new MediaServerFactoryError.XML_PARSE (message);
         }
@@ -262,5 +268,11 @@ public class Rygel.MediaServerFactory {
             throw new IOError.FAILED (message);
         }
     }
+
+    private bool check_path_exist (string path) {
+        var file = File.new_for_path (path);
+
+        return file.query_exists (null);
+    }
 }