properly handle subsites urls

page_metadata.py

@@ -102,21 +102,23 @@ def generate_metadata(path, context):
 
     media_size = 0
     # enumerate all media displayed on the page
-
     media, soup = get_media(path) #reuse the same soup to limit calculation
 
     for m in media:
        
         # filter out SITEURL to prevent trouble
-        file_name = m.replace(context['SITEURL']+'/', '')
         
+        #print(context['SITEURL'], m)
         # join output path to file, need to strip any leading slash for os.path
         if subsites:
+            file_name = m.replace(context['main_siteurl']+'/', '')
             m = os.path.join(general_output_path, file_name.strip('/'))
         else:
+            file_name = m.replace(context['SITEURL']+'/', '')
             m = os.path.join(output_path, file_name.strip('/'))
-  
+        print(m)
         if os.path.exists(m):
+            print(m, 'exists')
             media_size = media_size + os.path.getsize(m)
 
     current_file = os.path.join(output_path, output_file)