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Deal properly with arcname and filter in tar backup

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This commit is contained in:
David Larlet 2017-05-10 10:26:35 -04:00 committed by Binnette
parent 95111a191b
commit bffc027187
1 changed files with 12 additions and 5 deletions
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17
umap/management/commands/backup.py
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@ -14,11 +14,16 @@ class Command(BaseCommand):
def add_arguments(self, parser):
parser.add_argument('path', help='Location of the backups.')
def archive(self, source, destination):
def archive(self, source, destination, arcname):
def exclude(tarinfo):
# Avoid archiving JSON layers gziped by nginx.
if tarinfo.name.endswith('.gz') or tarinfo.issym():
return None
return tarinfo
try:
archive = tarfile.open(str(destination), mode='w:gz')
archive.add(str(source), arcname='./', recursive=True,
exclude=os.path.islink)
archive.add(str(source), arcname=arcname, recursive=True,
filter=exclude)
except: # NOQA
raise
finally:
@ -33,7 +38,9 @@ class Command(BaseCommand):
with database_tmp.open('w') as out:
call_command('dumpdata', format='json', stdout=out)
self.archive(database_tmp,
root.joinpath('database.{}.tar.gz'.format(today)))
root.joinpath('database.{}.tar.gz'.format(today)),
arcname='database.json')
self.archive(settings.MEDIA_ROOT,
root.joinpath('media.{}.tar.gz'.format(today)))
root.joinpath('media.{}.tar.gz'.format(today)),
arcname='./')
os.unlink(str(database_tmp))