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# -*- coding: utf-8 -*-
"""
print_settings
==============
Django command similar to 'diffsettings' but shows all active Django settings.
"""
import fnmatch
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):
help = "Print the active Django settings."
def add_arguments(self, parser):
super().add_arguments(parser)
parser.add_argument(
"setting", nargs="*", help="Specifies setting to be printed."
)
parser.add_argument(
"-f",
"--fail",
action="store_true",
dest="fail",
help="Fail if invalid setting name is given.",
)
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):
setting_names = options["setting"]
settings_dct = {k: getattr(settings, k) for k in dir(settings) if k.isupper()}
if setting_names:
settings_dct = {
key: value
for key, value in settings_dct.items()
if any(
fnmatch.fnmatchcase(key, setting_name)
for setting_name in setting_names
)
}
if options["fail"]:
for setting_name in setting_names:
if not any(
fnmatch.fnmatchcase(key, setting_name)
for key in settings_dct.keys()
):
raise CommandError("%s not found in settings." % setting_name)
output_format = options["format"]
indent = options["indent"]
if output_format == "json":
print(json.dumps(settings_dct, indent=indent))
elif output_format == "yaml":
import yaml # requires PyYAML
print(yaml.dump(settings_dct, indent=indent))
elif output_format == "pprint":
from pprint import pprint
pprint(settings_dct)
elif output_format == "text":
for key, value in settings_dct.items():
print("%s = %s" % (key, value))
elif output_format == "value":
for value in settings_dct.values():
print(value)
else:
for key, value in settings_dct.items():
print("%-40s = %r" % (key, value))
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