mirror of
https://github.com/ddnet/ddnet.git
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101 lines
3.8 KiB
Python
Executable file
101 lines
3.8 KiB
Python
Executable file
#!/usr/bin/env python3
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# This script is intended to be called automatically every day (e.g. via cron).
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# It only output stuff if new ranks have to be inserted. Therefore the output
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# may be redirected to email notifying about manual action to transfer the
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# ranks to MySQL.
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#
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# Configure cron as the user running the DDNet-Server processes
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#
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# $ crontab -e
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# 30 5 * * * /path/to/this/script/move_sqlite.py --from /path/to/ddnet-server.sqlite
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#
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# Afterwards configure a MTA (e.g. postfix) and the users email address.
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import sqlite3
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import argparse
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from time import strftime
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import os
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def sqlite_table_exists(cursor, table):
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cursor.execute(f"SELECT COUNT(*) FROM sqlite_master WHERE type='table' AND name='{table}'")
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return cursor.fetchone()[0] != 0
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def sqlite_num_transfer(conn, table):
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c = conn.cursor()
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if not sqlite_table_exists(c, table):
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return 0
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c.execute(f'SELECT COUNT(*) FROM {table}')
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num = c.fetchone()[0]
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return num
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def transfer(file_from, file_to):
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conn_to = sqlite3.connect(file_to, isolation_level='EXCLUSIVE')
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cursor_to = conn_to.cursor()
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conn_from = sqlite3.connect(file_from, isolation_level='EXCLUSIVE')
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for line in conn_from.iterdump():
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cursor_to.execute(line)
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print(line.encode('utf-8'))
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cursor_to.close()
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conn_to.commit()
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conn_to.close()
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cursor_from = conn_from.cursor()
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if sqlite_table_exists(cursor_from, 'record_race'):
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cursor_from.execute('DELETE FROM record_race')
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if sqlite_table_exists(cursor_from, 'record_teamrace'):
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cursor_from.execute('DELETE FROM record_teamrace')
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if sqlite_table_exists(cursor_from, 'record_saves'):
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cursor_from.execute('DELETE FROM record_saves')
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cursor_from.close()
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conn_from.commit()
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conn_from.close()
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def main():
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default_output = 'ddnet-server-' + strftime('%Y-%m-%d') + '.sqlite'
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parser = argparse.ArgumentParser(
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description='Move DDNet ranks, teamranks and saves from a possible active SQLite3 to a new one',
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formatter_class=argparse.ArgumentDefaultsHelpFormatter)
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parser.add_argument('--from', '-f', dest='f',
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default='ddnet-server.sqlite',
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help='Input file where ranks are deleted from when moved successfully (default: ddnet-server.sqlite)')
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parser.add_argument('--to', '-t',
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default=default_output,
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help='Output file where ranks are saved adds current date by default')
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args = parser.parse_args()
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if not os.path.exists(args.f):
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print(f"Warning: '{args.f}' does not exist (yet). Is the path specified correctly?")
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return
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conn = sqlite3.connect(args.f)
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num_ranks = sqlite_num_transfer(conn, 'record_race')
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num_teamranks = sqlite_num_transfer(conn, 'record_teamrace')
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num_saves = sqlite_num_transfer(conn, 'record_saves')
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num = num_ranks + num_teamranks + num_saves
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conn.close()
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if num == 0:
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return
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print(f'{num} new entries in backup database found ({num_ranks} ranks, {num_teamranks} teamranks, {num_saves} saves')
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print('Moving entries from {os.path.abspath(args.f)} to {os.path.abspath(args.to)}')
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sql_file = 'ddnet-server-' + strftime('%Y-%m-%d') + '.sql'
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print("You can use the following commands to import the entries to MySQL (use sed 's/record_/prefix_/' for other database prefixes):")
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print()
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print((f" echo '.dump --preserve-rowids' | sqlite3 {os.path.abspath(args.to)} | " + # including rowids, this forces sqlite to name all columns in each INSERT statement
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"grep -E '^INSERT INTO record_(race|teamrace|saves)' | " + # filter out inserts
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"sed -e 's/INSERT INTO/INSERT IGNORE INTO/' | " + # ignore duplicate rows
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f"sed -e 's/rowid,//' -e 's/VALUES([0-9]*,/VALUES(/' > {sql_file}")) # filter out rowids again
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print(f" mysql -u teeworlds -p'PW2' teeworlds < {sql_file}")
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print()
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print(f"When the ranks are transfered successfully to mysql, {os.path.abspath(args.to)} can be removed")
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print()
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print("Log of the transfer:")
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print()
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transfer(args.f, args.to)
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if __name__ == '__main__':
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main()
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