team-3/src/c3nav/mapdata/management/commands/clearmapcache.py

import os

from django.conf import settings
from django.core.management.base import BaseCommand
from django.utils.translation import ugettext_lazy as _


class Command(BaseCommand):
    help = 'clear the mapdata cache'

    def add_arguments(self, parser):
        parser.add_argument('--include-history', action='store_const', const=True, default=False,
                            help=_('incluce all history as well'))

    def handle(self, *args, **options):
        from c3nav.mapdata.models import MapUpdate
        MapUpdate.objects.create(type='management')

        if options['include_history']:
            for file in os.listdir(settings.CACHE_ROOT):
                if file.startswith('level_'):
                    os.remove(os.path.join(settings.CACHE_ROOT, file))

        if not settings.HAS_REAL_CACHE:
            print(_('You have no external cache configured, so don\'t forget to restart your c3nav instance!'))