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exacttimestamps.py
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exacttimestamps.py
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# Copyright 2014 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"). You
# may not use this file except in compliance with the License. A copy of
# the License is located at
#
# http://aws.amazon.com/apache2.0/
#
# or in the "license" file accompanying this file. This file is
# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
# ANY KIND, either express or implied. See the License for the specific
# language governing permissions and limitations under the License.
import logging
from awscli.customizations.s3.syncstrategy.base import SizeAndLastModifiedSync
LOG = logging.getLogger(__name__)
EXACT_TIMESTAMPS = {'name': 'exact-timestamps', 'action': 'store_true',
'help_text': (
'When syncing from S3 to local, same-sized '
'items will be ignored only when the timestamps '
'match exactly. The default behavior is to ignore '
'same-sized items unless the local version is newer '
'than the S3 version.')}
class ExactTimestampsSync(SizeAndLastModifiedSync):
ARGUMENT = EXACT_TIMESTAMPS
def compare_time(self, src_file, dest_file):
src_time = src_file.last_update
dest_time = dest_file.last_update
delta = dest_time - src_time
cmd = src_file.operation_name
if cmd == 'download':
return self.total_seconds(delta) == 0
else:
return super(ExactTimestampsSync, self).compare_time(src_file,
dest_file)