django_migration_hash.py

# -*- coding: utf-8 -*
from __future__ import print_function, division, absolute_import, unicode_literals

import hashlib
import inspect


def main():
    import django
    django.setup()

    from django.db.migrations.loader import MigrationLoader

    loader = MigrationLoader(None)

    disk_migrations = sorted(loader.disk_migrations.items())

    h = hashlib.sha1()

    h.update(django.get_version())

    for (app_name, migration_name), migration_cls in disk_migrations:
        h.update(app_name)
        h.update(migration_name)
        h.update(inspect.getsource(inspect.getmodule(migration_cls)))

    print(h.hexdigest())


if __name__ == '__main__':
    main()