Pymigrate is a tool for you to use python scripts or whatever self runnable scripts as your migration sripts for your data and systme.
Migrate scripts should be in one folder and with a prefix in name as index. The index is the order of execution of the scripts. eg:
MIGRATE_FOLDER/001_create_user_schema.py
002_create_group_schema.py
003_init_user_data.py
Then, run the migrate scripts by:
pymigrate MIGRATE_FOLDER
After migration is done, we can show the trace by:
pymigrate -t MIGRATE_FOLDER
When you have new change to apply to the system, just add more scripts into the MIGRATE_FOLDER, and use index for the execution order. If you just clear the system(like drop the database and recreate) and want to re-run the migrate sequence, you need clear the trace:
pymigrate -c MIGRATE_FOLDER