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#!/usr/bin/env python3

"""boto-empty-deleted-versions -- delete all versions of deleted files from an s3 bucket"""

import boto
from boto.s3 import deletemarker
import sys

def main():
    """Main procedure"""

    bucket = sys.argv[1]

    connection = boto.connect_s3()
    bucket = connection.get_bucket(bucket)

    files_to_delete = []
    for version in bucket.list_versions():
        if isinstance(version, deletemarker.DeleteMarker) and version.is_latest:
            files_to_delete.append(version.name)

    for version in bucket.list_versions():
        if version.name in files_to_delete:
            print("deleting", version.name, "version", version.version_id)
            bucket.delete_key(version.name, version_id=version.version_id)

if __name__ == "__main__":
    main()