~launchpad-pqm/launchpad/devel

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#!/usr/bin/env python
# Copyright 2009 Canonical Ltd.  This software is licensed under the
# GNU Affero General Public License version 3 (see the file LICENSE).

"""Script to generate SQL to add MD5 sums for existing librarian files."""

__metaclass__ = type

import commands
import os
import sys


SQL = "UPDATE LibraryFileContent SET md5 = '%s' WHERE id = %d;"


def main(path, minimumID=0):
    if not path.endswith('/'):
        path += '/'

    for dirpath, dirname, filenames in os.walk(path):
        dirname.sort()
        databaseID = dirpath[len(path):]
        if not len(databaseID) == 8: # "xx/xx/xx"
            continue
        for filename in filenames:
            databaseID = int(databaseID.replace('/', '') + filename, 16)
            if databaseID < minimumID:
                continue
            filename = os.path.join(dirpath, filename)
            md5sum = commands.getoutput('md5sum ' + filename).split(' ', 1)[0]
            yield databaseID, md5sum

if __name__ == '__main__':
    if len(sys.argv) > 2:
        minimumID = int(sys.argv[2])
    else:
        minimumID = 0
    for databaseID, md5sum in main(sys.argv[1], minimumID):
        print SQL % (md5sum, databaseID)