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Revision 4446

csv2db: When no command is specified, just clean up the specified table

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csv2db
1 1
#!/usr/bin/env python
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# Loads a command's CSV output stream into a PostgreSQL table.
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# When no command is specified, just cleans up the specified table.
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# The command may be run more than once.
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import csv
......
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    env_names = []
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    def usage_err():
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        raise SystemExit('Usage: '+opts.env_usage(env_names)+' '+sys.argv[0]
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            +' input_cmd [args...]')
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            +' [input_cmd args...]')
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    # Parse args
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    input_cmd = sys.argv[1:]
......
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    db_config = opts.get_env_vars(sql.db_config_names, None, env_names)
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    verbosity = util.cast(float, opts.get_env_var('verbosity', 3, env_names))
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    if not (input_cmd != [] and table != None and 'engine' in db_config):
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        usage_err()
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    if not (table != None and 'engine' in db_config): usage_err()
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    # Connect to DB
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    def log(msg, level=1):
......
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                line_in.close() # also closes proc.stdout
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                proc.wait()
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        sql.with_savepoint(db, load_)
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        log('Cleaning up table')
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        sql_io.cleanup_table(db, table, col_names)
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        log('Vacuuming and reanalyzing table')
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        sql.vacuum(db, table)
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    try: load()
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    except sql.DatabaseErrors, e:
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        if use_copy_from[0]: # first try
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            exc.print_ex(e, plain=True)
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            use_copy_from[0] = False
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            load() # try again with different approach
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        else: raise
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    if input_cmd != []:
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        try: load()
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        except sql.DatabaseErrors, e:
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            if use_copy_from[0]: # first try
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                exc.print_ex(e, plain=True)
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                use_copy_from[0] = False
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                load() # try again with different approach
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            else: raise
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    log('Cleaning up table')
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    sql_io.cleanup_table(db, table)
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    log('Vacuuming and reanalyzing table')
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    sql.vacuum(db, table)
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main()

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