Simple Forward-only database migrations
ffmigration stands for “fast forward migration” and is a simple database migration program.
Is a simple ans elegant way of keeping database migrations in order in various environemnts, keeping track of wich database migratison are executed and with none.
ffmigration is a forward only migration tool, it means that there isnt ant automatic way to rollback and applied migration.
How it works
ffmigration creates a table names migration_history on the selected database to keep track od the applied migrations. This table is created automatically on first run.
On every run, ffmigration looks to all the files with a .sql extension in the migration directory provided in the command line, checks if the migration file has been applied to the database, and if ih has not been aplied it is apllied to the the database and saved to migration_history.
It is recomended to name all the migration files prefixed with a number to keep the order. For example:
$ ls /some/migrations/dir/ 0001_create_some_table.sql 0002_add_some_data.sql 0003_create_index.sql 0004_other_useful_tweaks.sql
This is a beta software with some limitations:
- By now it only works with MySQL.
python setup.py build sudo python setup.py install
or use pip:
pip install ffmigrate
$ ./ffmigration --help Usage: ffmigration [options] database migrations_dir Apply database migrations from migrations_dir to selected database. migration_dir contains files with .sql extension, that are sorted and applied. The applied migrations are saved on a table named 'migration_history' in the selected database Options: --version show program's version number and exit -h, --help show this help message and exit -H HOST, --host=HOST Database server hostname -u USER, --user=USER database username -p ask for a database password --password=PASSWORD database password -P PORT, --port=PORT database connection port -q, --quiet don't print status messages to stdout -l LEVEL, --level=LEVEL logging level (debug,info,warning,error,critical) -n, --noop Do not run commands.
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