README.md

In your Gemfile add:

group :development, :test do
  gem 'micro_migrations', :git => 'git@gist.github.com:33e9f92c229eb808a4fa.git'
end

You might want to add something like this to the Rakefile of apps that use a gem that uses micro_migrations:

ENV['SCHEMA'] = "#{Gem.loaded_specs['your-gem-name'].full_gem_path}/db/schema.rb"

micro_migrations.gemspec

Gem::Specification.new do |s|
  s.name        = 'micro_migrations'
  s.version     = '0.0.1'
  s.author      = 'Sven Fuchs'
  s.email       = 'me@svenfuchs.com'
  s.summary     = 'Minimal ActiveRecord standalone migrations'
  s.description = 'Minimal ActiveRecord standalone migrations.'

  s.files         = ['micro_migrations.rb']
  s.require_path  = '.'
end

micro_migrations.rb

require 'rails'
require 'active_record/railtie'

Bundler.require

app = Class.new(Rails::Application)
app.config.active_support.deprecation = :log
app.load_tasks