Rebuild i18n target document when catalog updated

1 files changed, 14 insertions, 0 deletions

diff --git a/sphinx/util/osutil.py b/sphinx/util/osutil.py
index 6cb310eb0..a6235f895 100644
--- a/sphinx/util/osutil.py
+++ b/sphinx/util/osutil.py
@@ -16,6 +16,7 @@ import time
 import errno
 import locale
 import shutil
+import gettext
 from os import path
 
 # Errnos that we need.
@@ -161,4 +162,17 @@ def find_catalog(docname, compaction):
 
     return ret
 
+
+def find_catalog_files(docname, srcdir, locale_dirs, lang, compaction):
+    from sphinx.util.pycompat import relpath
+    if not(lang and locale_dirs):
+        return []
+
+    domain = find_catalog(docname, compaction)
+    files = [gettext.find(domain, path.join(srcdir, dir_), [lang])
+             for dir_ in locale_dirs]
+    files = [relpath(f, srcdir) for f in files if f]
+    return files
+
+
 fs_encoding = sys.getfilesystemencoding() or sys.getdefaultencoding()