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32 lines
910 B
Python
32 lines
910 B
Python
import argparse
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import hashlib
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import sqlite3
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import uuid
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try:
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bytes = buffer
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except:
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pass
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parser = argparse.ArgumentParser()
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parser.add_argument('dbfile', help = 'Path to the SQLite database file')
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args = parser.parse_args()
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def process_table(connection, table):
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c = connection.cursor()
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c.execute('ALTER TABLE {0} ADD COLUMN path_hash BLOB NOT NULL DEFAULT ROWID'.format(table))
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hashes = dict()
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for row in c.execute('SELECT path FROM {0}'.format(table)):
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hashes[row[0]] = hashlib.sha1(row[0].encode('utf-8')).digest()
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c.executemany('UPDATE {0} SET path_hash=? WHERE path=?'.format(table), [ (bytes(h), p) for p, h in hashes.items() ])
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c.execute('CREATE UNIQUE INDEX index_{0}_path ON {0}(path_hash)'.format(table))
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with sqlite3.connect(args.dbfile) as conn:
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process_table(conn, 'folder')
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process_table(conn, 'track')
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conn.cursor().execute('VACUUM')
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