Move management helper function to new utils module.

This allows us to iremove an inter-command import.

django/core/management/commands/makemessages.py

@@ -9,6 +9,7 @@ from subprocess import PIPE, Popen
 
 import django
 from django.core.management.base import CommandError, NoArgsCommand
+from django.core.management.utils import handle_extensions
 from django.utils.functional import total_ordering
 from django.utils.text import get_text_list
 from django.utils.jslex import prepare_js_for_gettext
@@ -130,30 +131,6 @@ def write_pot_file(potfile, msgs):
     with open(potfile, 'a') as fp:
         fp.write(msgs)
 
-def handle_extensions(extensions=('html',), ignored=('py',)):
-    """
-    Organizes multiple extensions that are separated with commas or passed by
-    using --extension/-e multiple times. Note that the .py extension is ignored
-    here because of the way non-*.py files are handled in make_messages() (they
-    are copied to file.ext.py files to trick xgettext to parse them as Python
-    files).
-
-    For example: running 'django-admin makemessages -e js,txt -e xhtml -a'
-    would result in an extension list: ['.js', '.txt', '.xhtml']
-
-    >>> handle_extensions(['.html', 'html,js,py,py,py,.py', 'py,.py'])
-    set(['.html', '.js'])
-    >>> handle_extensions(['.html, txt,.tpl'])
-    set(['.html', '.tpl', '.txt'])
-    """
-    ext_list = []
-    for ext in extensions:
-        ext_list.extend(ext.replace(' ', '').split(','))
-    for i, ext in enumerate(ext_list):
-        if not ext.startswith('.'):
-            ext_list[i] = '.%s' % ext_list[i]
-    return set([x for x in ext_list if x.strip('.') not in ignored])
-
 
 class Command(NoArgsCommand):
     option_list = NoArgsCommand.option_list + (

django/core/management/templates.py

@@ -21,7 +21,7 @@ from django.template import Template, Context
 from django.utils import archive
 from django.utils._os import rmtree_errorhandler
 from django.core.management.base import BaseCommand, CommandError
-from django.core.management.commands.makemessages import handle_extensions
+from django.core.management.utils import handle_extensions
 
 
 _drive_re = re.compile('^([a-z]):', re.I)

django/core/management/utils.py

@@ -12,3 +12,27 @@ def popen_wrapper(args):
               close_fds=os.name != 'nt', universal_newlines=True)
     output, errors = p.communicate()
     return output, errors, p.returncode
+
+def handle_extensions(extensions=('html',), ignored=('py',)):
+    """
+    Organizes multiple extensions that are separated with commas or passed by
+    using --extension/-e multiple times. Note that the .py extension is ignored
+    here because of the way non-*.py files are handled in make_messages() (they
+    are copied to file.ext.py files to trick xgettext to parse them as Python
+    files).
+
+    For example: running 'django-admin makemessages -e js,txt -e xhtml -a'
+    would result in an extension list: ['.js', '.txt', '.xhtml']
+
+    >>> handle_extensions(['.html', 'html,js,py,py,py,.py', 'py,.py'])
+    set(['.html', '.js'])
+    >>> handle_extensions(['.html, txt,.tpl'])
+    set(['.html', '.tpl', '.txt'])
+    """
+    ext_list = []
+    for ext in extensions:
+        ext_list.extend(ext.replace(' ', '').split(','))
+    for i, ext in enumerate(ext_list):
+        if not ext.startswith('.'):
+            ext_list[i] = '.%s' % ext_list[i]
+    return set([x for x in ext_list if x.strip('.') not in ignored])