52 lines
2.0 KiB
Python
52 lines
2.0 KiB
Python
# Petale - Simple App as Key/Value Storage Interface
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# Copyright (C) 2017 Entr'ouvert
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#
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# This program is free software: you can redistribute it and/or modify it
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# under the terms of the GNU Affero General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import itertools
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from django.core.management.base import BaseCommand
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from petale import models
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from petale.api_views import check_unknown_cuts
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def grouper(n, iterable, fillvalue=None):
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"grouper(3, 'ABCDEFG', 'x') --> ABC DEF Gxx"
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args = [iter(iterable)] * n
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return itertools.zip_longest(fillvalue=fillvalue, *args)
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class Command(BaseCommand):
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help = 'Clean petale data'
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def add_arguments(self, parser):
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parser.add_argument('--delete', action='store_true', help='Delete dead petals.')
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def handle(self, *args, delete=False, **options):
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zombie_uuids = set()
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for cuts in grouper(500, models.CUT.objects.iterator()):
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zombie_uuids.update(check_unknown_cuts({cut.uuid for cut in cuts if cut is not None}))
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if options['verbosity'] > 1:
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print('Found %d dead cuts on %d known cuts.' % (len(zombie_uuids), models.CUT.objects.count()))
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if delete:
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count, count_by_models = models.CUT.objects.filter(uuid__in=zombie_uuids).delete()
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if count and options['verbosity'] > 0:
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print(
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'Deleted ',
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', '.join(
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'%d %s' % (count, model.split('.')[-1]) for model, count in count_by_models.items()
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),
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)
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