Simple Data Migrations

Inspired by data-migrate but simplified.

Add this line to your application's Gemfile:

gem "simple_data_migrations"

Install by creating db migration file:

bin/rails generate simple_data_migrations:install and then run bin/rails db:migrate

Generate sample data migration file by bin/rails generate simple_data_migrations:template migration-name

Status can be displayed by bin/rails data:migrate:status And executed by bin/rails data:migrate

To ensure that migration script is run only once during deploy to multiple machines, one can use bin/rails data:migrate_with_lock task. It will use database advisory lock, in similar manner to how the Rails database migrations are run. In case of multiple concurrent task invocations, the first run will succeed but the others will raise SimpleDataMigrations::ConcurrentRun::Error.

TODO:

• add configuration
• add tests

After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and the created tag, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/tiramizoo/simple_data_migrations.

The gem is available as open source under the terms of the MIT License.