sqlite3をmysqlに移行

sqlite3-to-mysql.py

#! /usr/bin/env python

# Usage:
#    sqlite3 db/development.sqlite3 .dump > db/development.sqlite3.sql
#    cat db/development.sqlite3.sql | python bin/sqlite3-to-mysql.py > db/development.mysql.sql
#    mysql -u<user> -p <database> < db/development.mysql.sql

import sys

def main():
    print "SET sql_mode='NO_BACKSLASH_ESCAPES';"
    lines = sys.stdin.read().splitlines()
    for line in lines:
        processLine(line)

def processLine(line):
    if (
        line.startswith("PRAGMA") or 
        line.startswith("BEGIN TRANSACTION;") or
        line.startswith("COMMIT;") or
        line.startswith("DELETE FROM sqlite_sequence;") or
        line.startswith("INSERT INTO \"sqlite_sequence\"")
       ):
        return
    line = line.replace("AUTOINCREMENT", "AUTO_INCREMENT")
    line = line.replace("DEFAULT 't'", "DEFAULT '1'")
    line = line.replace("DEFAULT 'f'", "DEFAULT '0'")
    line = line.replace(",'t'", ",'1'")
    line = line.replace(",'f'", ",'0'")
    in_string = False
    newLine = ''
    for c in line:
        if not in_string:
            if c == "'":
                in_string = True
            elif c == '"':
                newLine = newLine + '`'
                continue
        elif c == "'":
            in_string = False
        newLine = newLine + c
    print newLine

if __name__ == "__main__":
    main()