Added the display of the repository size in the source subtab of a project.

src/IDF/Scm.php

@@ -87,6 +87,16 @@ class IDF_Scm
         return call_user_func(array($scms[$scm], 'factory'), $project);
     }
 
+    /**
+     * Return the size of the repository in bytes.
+     *
+     * @return int Size in byte, -1 if the size cannot be evaluated.
+     */
+    public function getRepositorySize()
+    {
+        return -1;
+    }
+
     /**
      * Returns the URL of the git daemon.
      *