Fixed validation of subprojects with language filter.

The validation now properly honors language filter and does not complain
about duplicate languages which will be filtered out. Also it no longer
filters out template.

Fixes #1023
Signed-off-by: Michal Čihař <michal@cihar.com>

docs/changes.rst

@@ -6,6 +6,8 @@ weblate 2.6
 
 Released on ? 2016.
 
+* Fixed validation of subprojects with language filter.
+
 weblate 2.5
 -----------
 

weblate/trans/models/subproject.py

@@ -942,21 +942,28 @@ class SubProject(models.Model, PercentMixin, URLMixin, PathMixin):
     def get_mask_matches(self):
         """Returns files matching current mask."""
         prefix = os.path.join(self.get_path(), '')
-        matches = set([
-            f.replace(prefix, '')
-            for f in glob(os.path.join(self.get_path(), self.filemask))
-        ])
+        matches = set()
+        for f in glob(os.path.join(self.get_path(), self.filemask)):
+            path = f.replace(prefix, '')
+            code = self.get_lang_code(path)
+            if re.match(self.language_regex, code):
+                matches.add(path)
+            else:
+                self.log_info('skipping language %s [%s]', code, path)
+
         # We want to list template among translations as well
         if self.has_template():
             if self.edit_template:
                 matches.add(self.template)
             else:
                 matches.discard(self.template)
+
         # Remove symlinked translations
         for filename in list(matches):
             resolved = self.repository.resolve_symlinks(filename)
             if resolved != filename and resolved in matches:
                 matches.discard(filename)
+
         return sorted(matches)
 
     def create_translations(self, force=False, langs=None, request=None,
@@ -965,16 +972,12 @@ class SubProject(models.Model, PercentMixin, URLMixin, PathMixin):
         translations = set()
         languages = set()
         matches = self.get_mask_matches()
-        language_re = re.compile(self.language_regex)
         for pos, path in enumerate(matches):
             with transaction.atomic():
                 code = self.get_lang_code(path)
                 if langs is not None and code not in langs:
                     self.log_info('skipping %s', path)
                     continue
-                if not language_re.match(code):
-                    self.log_info('skipping language %s', code)
-                    continue
 
                 self.log_info(
                     'checking %s (%s) [%d/%d]',
@@ -1252,6 +1255,7 @@ class SubProject(models.Model, PercentMixin, URLMixin, PathMixin):
         # Template validation
         self.clean_template()
 
+        try:
             matches = self.get_mask_matches()
 
             # Verify language codes
@@ -1259,6 +1263,11 @@ class SubProject(models.Model, PercentMixin, URLMixin, PathMixin):
 
             # Try parsing files
             self.clean_files(matches)
+        except re.error:
+            raise ValidationError(_(
+                'Can not validate file matches due to invalid '
+                'regullar expression.'
+            ))
 
         # New language options
         self.clean_new_lang()