Fixed #9523 -- Restart runserver after translation MO files change

Thanks to Krzysztof Kulewski for the initial patch.

AUTHORS

@@ -369,6 +369,7 @@ answer newbie questions, and generally made Django that much better:
     knox <christobzr@gmail.com>
     David Krauth
     Kevin Kubasik <kevin@kubasik.net>
+    Krzysztof Kulewski <kulewski@gmail.com>
     kurtiss@meetro.com
     Vladimir Kuzma <vladimirkuzma.ch@gmail.com>
     Denis Kuzmichyov <kuzmichyov@gmail.com>

django/utils/autoreload.py

@@ -28,13 +28,13 @@
 # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-import datetime
 import os
 import signal
 import sys
 import time
 import traceback
 
+from django.conf import settings
 from django.core.signals import request_finished
 try:
     from django.utils.six.moves import _thread as thread
@@ -86,13 +86,28 @@ _win = (sys.platform == "win32")
 
 _error_files = []
 
-
 def gen_filenames():
     """
-    Yields a generator over filenames referenced in sys.modules.
+    Yields a generator over filenames referenced in sys.modules and translation
+    files.
     """
     filenames = [filename.__file__ for filename in sys.modules.values()
                 if hasattr(filename, '__file__')]
+
+    # Add the names of the .mo files that can be generated
+    # by compilemessages management command to the list of files watched.
+    basedirs = [os.path.join(os.path.dirname(os.path.dirname(__file__)),
+                             'conf', 'locale'),
+                'locale']
+    basedirs.extend(settings.LOCALE_PATHS)
+    basedirs = [os.path.abspath(basedir) for basedir in basedirs
+                if os.path.isdir(basedir)]
+    for basedir in basedirs:
+        for dirpath, dirnames, locale_filenames in os.walk(basedir):
+            for filename in locale_filenames:
+                if filename.endswith('.mo'):
+                    filenames.append(os.path.join(dirpath, filename))
+
     for filename in filenames + _error_files:
         if not filename:
             continue

docs/ref/django-admin.txt

@@ -791,8 +791,12 @@ Django.)
 
 The development server automatically reloads Python code for each request, as
 needed. You don't need to restart the server for code changes to take effect.
-However, some actions like adding files or compiling translation files don't
-trigger a restart, so you'll have to restart the server in these cases.
+However, some actions like adding files don't trigger a restart, so you'll 
+have to restart the server in these cases.
+
+.. versionchanged:: 1.7
+
+    Compiling translation files now also restarts the development server.
 
 If you are using Linux and install `pyinotify`_, kernel signals will be used to
 autoreload the server (rather than polling file modification timestamps each

docs/releases/1.7.txt

@@ -346,6 +346,9 @@ Management Commands
 * The :djadmin:`runserver` command now uses ``inotify`` Linux kernel signals
   for autoreloading if ``pyinotify`` is installed.
 
+* The :djadmin:`runserver` command is now restarted when a translation file is
+  changed.
+
 Models
 ^^^^^^
 

tests/utils_tests/locale/nl/LC_MESSAGES/django.po

@@ -0,0 +1,17 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: PACKAGE VERSION\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2007-09-15 19:15+0200\n"
+"PO-Revision-Date: 2010-05-12 12:41-0300\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"

tests/utils_tests/test_autoreload.py

@@ -0,0 +1,37 @@
+import os
+
+from django import conf
+from django.test import TestCase, override_settings
+from django.utils.autoreload import gen_filenames
+
+LOCALE_PATH = os.path.join(os.path.dirname(__file__), 'locale')
+
+
+class TestFilenameGenerator(TestCase):
+    def test_django_locales(self):
+        """
+        Test that gen_filenames() also yields the built-in django locale files.
+        """
+        filenames = list(gen_filenames())
+        locales = []
+
+        basedir = os.path.join(os.path.dirname(conf.__file__), 'locale')
+        for dirpath, dirnames, locale_filenames in os.walk(basedir):
+            for filename in locale_filenames:
+                if filename.endswith('.mo'):
+                    locales.append(os.path.join(dirpath, filename))
+
+        self.assertTrue(len(locales) > 10)  # assume a few available locales
+        for filename in locales:
+            self.assertIn(filename, filenames)
+
+    @override_settings(
+        LOCALE_PATHS=(LOCALE_PATH,)
+    )
+    def test_app_locales(self):
+        """
+        Test that gen_filenames also yields from LOCALE_PATHS.
+        """
+        filenames = list(gen_filenames())
+        self.assertIn(os.path.join(LOCALE_PATH, 'nl', 'LC_MESSAGES', 'django.mo'),
+                      filenames)