South migration convert from 2 to 1.

south_07to06.py

import sys
import re

create_table_re = re.compile("db.create_table('([^']+)',")
field_name_re = re.compile("^(s*)('([^']+)', self.gf")

cur_model = None

input = open(sys.argv[1])

for line in input.readlines():
    line = line.rstrip()
    match = create_table_re.search(line)

    if line.startswith("class Migration"):
        line = "class Migration():"
    elif line.startswith("from south.v2"):
        continue
    elif 'Meta' in line and 'object_name' in line:
        line = re.sub(r"(?:, )?'object_name': '[^']+'", "", line)

    if not cur_model and match:
        cur_model = match.group(1)
    elif cur_model and line.strip() == '))':
        cur_model = None
    elif cur_model:
        field_match = field_name_re.search(line)

        if field_match:
            spaces = field_match.group(1)
            field_name = field_match.group(2)
            line = "%s('%s', orm['%s:%s']), " % (spaces, field_name, cur_model.replace("_", "."), field_name)

    print line