passerelle/passerelle/apps/family/management/commands/import_orleans_data.py

67 lines
2.4 KiB
Python

# Passerelle - uniform access to data and services
# Copyright (C) 2017 Entr'ouvert
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import fcntl
import os
from django.core.files.base import File
from django.core.files.storage import DefaultStorage
from django.core.management.base import BaseCommand, CommandError
from passerelle.apps.family.models import GenericFamily
class Command(BaseCommand):
def add_arguments(self, parser):
parser.add_argument(
'-a',
'--archive-file',
dest='archive_file',
help='Archive containing data files',
default='exports_prcit.zip',
)
parser.add_argument(
'-c', '--connector', dest='connector', help='Slug of the connector to import data into'
)
def handle(self, *args, **options):
if not os.path.exists(options['archive_file']):
raise CommandError('File %s does not exist.' % options['archive_file'])
try:
connector = GenericFamily.objects.get(slug=options['connector'])
except GenericFamily.DoesNotExist:
return
storage = DefaultStorage()
lock_filename = storage.path('family-%s/import-orleans-data.lock' % connector.id)
try:
fd = open(lock_filename, 'w') # pylint: disable=consider-using-with
fcntl.lockf(fd, fcntl.LOCK_EX | fcntl.LOCK_NB)
except IOError:
raise CommandError('Command already running.')
try:
archive_name = os.path.basename(options['archive_file'])
with open(options['archive_file'], 'rb') as archive_fd:
connector.archive.save(archive_name, File(archive_fd))
except Exception as e:
raise CommandError('Error occured: %s' % e)
finally:
fd.close()
os.unlink(lock_filename)