forked from rc/aircox
57 lines
1.8 KiB
Python
57 lines
1.8 KiB
Python
"""
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Handle archiving of logs in order to keep database light and fast. The
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logs are archived in gzip files, per day.
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"""
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import logging
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from argparse import RawTextHelpFormatter
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from django.conf import settings as main_settings
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from django.core.management.base import BaseCommand, CommandError
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from django.utils import timezone as tz
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import aircox.settings as settings
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from aircox.models import Log, Station
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logger = logging.getLogger('aircox.commands')
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class Command (BaseCommand):
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help = __doc__
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def add_arguments(self, parser):
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parser.formatter_class = RawTextHelpFormatter
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group = parser.add_argument_group('actions')
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group.add_argument(
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'-a', '--age', type=int,
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default=settings.AIRCOX_LOGS_ARCHIVES_MIN_AGE,
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help='minimal age in days of logs to archive. Default is '
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'settings.AIRCOX_LOGS_ARCHIVES_MIN_AGE'
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)
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group.add_argument(
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'-f', '--force', action='store_true',
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help='if an archive exists yet, force it to be updated'
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)
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group.add_argument(
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'-k', '--keep', action='store_true',
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help='keep logs in database instead of deleting them'
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)
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def handle(self, *args, age, force, keep, **options):
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date = tz.now() - tz.timedelta(days=age)
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while True:
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date = date.replace(
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hour=0, minute=0, second=0, microsecond=0
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)
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logger.info('archive log at date %s', date)
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for station in Station.objects.all():
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Log.objects.make_archive(
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station, date, force=force, keep=keep
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)
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qs = Log.objects.filter(date__lt=date)
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if not qs.exists():
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break
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date = qs.order_by('-date').first().date
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