ffmigration 0.5.1

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

Limitations

This is a beta software with some limitations:

• By now it only works with MySQL.

Installing

Use setup.py:

python setup.py build
sudo python setup.py install

or use pip:

pip install ffmigrate

Command line

$ ./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.