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# -*- coding: utf-8 -*-
"""
print_settings
==============
Django command similar to 'diffsettings' but shows all active Django settings.
"""
import json
from django.conf import settings
from django.core.management.base import BaseCommand, CommandError
from django_extensions.management.utils import signalcommand
class Command(BaseCommand):
"""print_settings command"""
args = '<SETTING>'
help = "Print the active Django settings."
def add_arguments(self, parser):
super(Command, self).add_arguments(parser)
parser.add_argument('--format', default='simple', dest='format',
help='Specifies output format.')
parser.add_argument('--indent', default=4, dest='indent', type=int,
help='Specifies indent level for JSON and YAML')
@signalcommand
def handle(self, *args, **options):
a_dict = {}
for attr in dir(settings):
if self.include_attr(attr, args):
value = getattr(settings, attr)
a_dict[attr] = value
for setting in args:
if setting not in a_dict:
raise CommandError('%s not found in settings.' % setting)
output_format = options.get('format', 'json')
indent = options.get('indent', 4)
if output_format == 'json':
print(json.dumps(a_dict, indent=indent))
elif output_format == 'yaml':
import yaml # requires PyYAML
print(yaml.dump(a_dict, indent=indent))
elif output_format == 'pprint':
from pprint import pprint
pprint(a_dict)
elif output_format == 'text':
for key, value in a_dict.items():
print("%s = %s" % (key, value))
elif output_format == 'value':
for value in a_dict.values():
print(value)
else:
self.print_simple(a_dict)
@staticmethod
def include_attr(attr, args):
"""Whether or not to include attribute in output"""
if not attr.startswith('__'):
if args is not ():
if attr in args:
return True
else:
return True
else:
return False
@staticmethod
def print_simple(a_dict):
"""A very simple output format"""
for key, value in a_dict.items():
print('%-40s = %r' % (key, value))
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