Fixed #17037 -- Added a --all option to diffsettings.

1 files changed, 13 insertions, 3 deletions

diff --git a/django/core/management/commands/diffsettings.py b/django/core/management/commands/diffsettings.py
index aa7395e5ee..9e70e9ad8f 100644
--- a/django/core/management/commands/diffsettings.py
+++ b/django/core/management/commands/diffsettings.py
@@ -1,14 +1,22 @@
+from optparse import make_option
+
 from django.core.management.base import NoArgsCommand
 
 def module_to_dict(module, omittable=lambda k: k.startswith('_')):
-    "Converts a module namespace to a Python dictionary. Used by get_settings_diff."
-    return dict([(k, repr(v)) for k, v in module.__dict__.items() if not omittable(k)])
+    """Converts a module namespace to a Python dictionary."""
+    return dict((k, repr(v)) for k, v in module.__dict__.items() if not omittable(k))
 
 class Command(NoArgsCommand):
     help = """Displays differences between the current settings.py and Django's
     default settings. Settings that don't appear in the defaults are
     followed by "###"."""
 
+    option_list = NoArgsCommand.option_list + (
+        make_option('--all', action='store_true', dest='all', default=False,
+                    help='Display all settings, regardless of their value. '
+                         'Default values are prefixed by "###".'),
+    )
+
     requires_model_validation = False
 
     def handle_noargs(self, **options):
@@ -22,9 +30,11 @@ class Command(NoArgsCommand):
         default_settings = module_to_dict(global_settings)
 
         output = []
-        for key in sorted(user_settings.keys()):
+        for key in sorted(user_settings):
             if key not in default_settings:
                 output.append("%s = %s  ###" % (key, user_settings[key]))
             elif user_settings[key] != default_settings[key]:
                 output.append("%s = %s" % (key, user_settings[key]))
+            elif options['all']:
+                output.append("### %s = %s" % (key, user_settings[key]))
         return '\n'.join(output)