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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 = []
def add_arguments(self, parser):
parser.add_argument("args", metavar="app_label", nargs="*")
parser.add_argument(
"--tag",
"-t",
action="append",
dest="tags",
help="Run only checks labeled with given tag.",
)
parser.add_argument(
"--list-tags",
action="store_true",
help="List available tags.",
)
parser.add_argument(
"--deploy",
action="store_true",
help="Check deployment settings.",
)
parser.add_argument(
"--fail-level",
default="ERROR",
choices=["CRITICAL", "ERROR", "WARNING", "INFO", "DEBUG"],
help=(
"Message level that will cause the command to exit with a "
"non-zero status. Default is ERROR."
),
)
parser.add_argument(
"--database",
action="append",
dest="databases",
help="Run database related checks against these aliases.",
)
def handle(self, *app_labels, **options):
include_deployment_checks = options["deploy"]
if options["list_tags"]:
self.stdout.write(
"\n".join(sorted(registry.tags_available(include_deployment_checks)))
)
return
if app_labels:
app_configs = [apps.get_app_config(app_label) for app_label in app_labels]
else:
app_configs = None
tags = options["tags"]
if tags:
try:
invalid_tag = next(
tag
for tag in tags
if not checks.tag_exists(tag, include_deployment_checks)
)
except StopIteration:
# no invalid tags
pass
else:
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,
include_deployment_checks=include_deployment_checks,
fail_level=getattr(checks, options["fail_level"]),
databases=options["databases"],
)
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