Issue 5580 - Multilocale build fails due to missing search engine plugin file

mozharness/abb/transform_locales.py

 # This file is part of Adblock Plus
 # Copyright (C) 2006-2015 Eyeo GmbH
 #
 # Adblock Plus is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 3 as
 # published by the Free Software Foundation.
 #
 # Adblock Plus is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
@@ skipping 148 matching lines @@
                     engine_ids.append(line)
                 else:
                     removed_engine_ids.append(line)
 
     # Make sure we still have search engines left
     if len(engine_ids) == 0:
         logger.fatal("No search engines left over for '%s'" % locale)
 
     # 'Parse' XML to get matching 'ShortName' for all engine IDs
     engine_names = {}
-    for eid in engine_ids:
+    for eid in engine_ids[:]:
         xml_file_path = os.path.join(path, _SEARCHPLUGINS_PATH, "%s.xml" % eid)
-        _check_path_exists(xml_file_path, logger)
+        if not os.path.exists(xml_file_path):
+            logger.info("Missing xml file for plugin %s" % eid)
+            engine_ids.remove(eid)
+            continue
         short_name = None
         with open(xml_file_path, "r") as fd:
             for line in fd:
                 line = line.strip()
                 match = _SHORTNAME_RE.match(line)
                 if match:
                     short_name = match.group(1).strip()
 
         if not short_name:
             logger.fatal("No ShortName defined for '%s' in '%s" %
@@ skipping 120 matching lines @@
         locale_path = os.path.join(chrome_path, locale, "locale", locale)
         if os.path.exists(locale_path):
             _transform_locale(locale, locale_path, logger)
         else:
             logger.error("Missing folder for locale '%s' in path: %s" %
                          (locale, locale_path))
 
     for locale in values_locales:
         locale_path = os.path.join(res_path, "values-" + locale)
         _transform_values_locale(locale, locale_path, logger)