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# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from optparse import make_option
from django.apps import apps
from django.core import checks
from django.core.checks.registry import registry
from django.core.management.base import BaseCommand, CommandError
class Command(BaseCommand):
help = "Checks the entire Django project for potential problems."
requires_system_checks = False
option_list = BaseCommand.option_list + (
make_option('--tag', '-t', action='append', dest='tags',
help='Run only checks labeled with given tag.'),
make_option('--list-tags', action='store_true', dest='list_tags',
help='List available tags.'),
)
def handle(self, *app_labels, **options):
if options.get('list_tags'):
self.stdout.write('\n'.join(sorted(registry.tags_available())))
return
if app_labels:
app_configs = [apps.get_app_config(app_label) for app_label in app_labels]
else:
app_configs = None
tags = options.get('tags', None)
if tags and any(not checks.tag_exists(tag) for tag in tags):
invalid_tag = next(tag for tag in tags if not checks.tag_exists(tag))
raise CommandError('There is no system check with the "%s" tag.' % invalid_tag)
self.check(app_configs=app_configs, tags=tags, display_num_errors=True)
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