Pimp my script/console

For a long time I’ve had an .irbrc file and a .railsrc file, setting up some simple helpers methods in my irb and script/console sessions. Today though, I wanted to add some more helpers specific to the project I’m working on. Specifically, I wanted to be able to use my machinist blueprints, to help me play around with some models.

Adding machinist isn’t as simple as just requiring my blueprints though — they require my ActiveRecord models, which aren’t available when .irbrc is loaded. Luckily the solution is simple — just add a couple of lines to the configuration in environment.rb:

Rails::Initializer.run do |config|
  if defined?(IRB)
    config.gem 'faker'
    config.gem 'notahat-machinist', :lib => 'machinist', :source => "http://gems.github.com"
    IRB.conf[:IRB_RC] = Proc.new { require File.join(RAILS_ROOT, "config", "console") }

The key part is the line starting IRB.conf[:IRB_RC], which tells irb to run the given when the session starts. Luckily, this happens after rails has finished initializing. I’ve set it to require config/console.rb, to which I can add all sorts of configuration and helpers, knowing it will only get loaded in script/console sessions where I want these shortcuts, not in my general code. Here it is:

require File.expand_path(File.dirname(__FILE__) + "/../spec/blueprints.rb")

def tomafro

def bbi
  Client.find_by_name("Big Bad Industries")