Quick StartΒΆ

To use nomad, you’ll have to supply some basic configuration, in ini format:

engine = sqla
url = sqlite:///test.db


See Acquiring URLs about ways you can use to specify url of database.

Save this in a file named nomad.ini. The directory, containing this file, will be your nomad environment. You can store file under any other name, but then you’ll have to supply it as an option to nomad calls (like nomad -c myconf.ini).

Then initialize your database to be used with nomad:

$ nomad init

This will create a table in your database with 2 fields - name and date. This table is used then for tracking which migrations have been applied already to this database.

And then you can create a migration:

$ nomad create 2012-09-21-first

This will create directory with name 2012-09-21-first and two files inside: migration.ini and up.sql. Name of first file matters - it contains information about dependencies of a migration (which can be passed as -d option to create command). Name of second file doesn’t matter - any *.sql, *.j2, or executable files (file with executable bit set) will be run. *.sql files are applied to database, *.j2 files are applied to the database after being passed through the jinja2 template system, and executable files (which can be your script to do something before or after migration, or even migration itself) are just executed.

You can then list or apply migrations - just read help about them (nomad help ls or nomad help apply). Also, reading Basic nomad tests can be helpful as well.