Muggler is a git hook that calculate migration difference between git branches - for Rails applications - and automatically revert and apply the migrations in the proper order when you change between branches, pull or merge.

brew tap divoxx/brewery
brew install muggler

Then from within the repository you want to setup, run:

muggler install

Just clone the repository and add the bin folder to your $PATH

Then from within the repository you want to setup, run:

muggler install

Muggler will automatically run bundler and the migrations when necessary. It will only load the app environment to run migrations when there are database differences between the branches, otherwise it will be as fast as normal branch switching.

Somtimes, if you're going to be moving temporarily between branches and you wanna skip the auto running of migrations you can use muggler hold. Once you're done, just run muggler continue and it will calculate the difference the between the current state and the state where hold was called and execute accordingly.

Copyright (c) 2013, Rodrigo Kochenburger All rights reserved.

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