source 'http://rubygems.org'

ruby_version = ENV["JAM_RUBY_VERSION"]
ruby_version = "2.3.1" if ruby_version.nil?

ruby ruby_version

# Assumes you have already cloned pg_migrate_ruby in your workspace
# $ cd [workspace]
# $ git clone https://github.com/sethcall/pg_migrate_ruby
gem 'pg_migrate', '0.1.14',  :source => 'http://rubygems.org/'