Customizable migrations

[anthonycorletti]

Creating a customizable script that takes in arguments that a user provides is something I feel is a necessary component of ferry that does not yet exist. With the current $ ferry -init command we create a base file ferry.rake in the tasks directory of the developers Rails app. While this provides some value, it's not very impactful. Digging into how capistrano allows users to configure their deploys in a deploy.rb file is going to be a starting point for us as we look to develop a way to provide our own equivalent of deploy.rb for data migrations and manipulations.

[anthonycorletti]

customizable migration scripting
"repeatable migrations"
set up DSL
signalman, chef - good example of custom DSL!
https://github.com/capistrano/capistrano/wiki/
https://robots.thoughtbot.com/writing-a-domain-specific-language-in-ruby
https://github.com/activerecord-hackery/squeel