Rails 3 bash aliases and .irbrc configs

I’ve been upgrading some apps and gems to the latest and greatest Rails 3. I’ve taken the time to update my ~/.bash_aliases and ~/.irbrc files to be both Rails 3 and Rails 2.x compatible. See below for the code.

~/.bash_aliases

# rails 3 shortcut 'r'
alias r='rails'

# launching console/server
sc () {
  if [ -f ./script/rails ]; then 
    rails c $@
  else
    ./script/console $@
  fi
}

sg () {
  if [ -f ./script/rails ]; then
    rails g $@
  else
    ./script/generate $@
  fi
}

ss () {
  if [ -f ./script/rails ]; then 
    rails s $@
  else
    ./script/server $@
  fi
}

sspe () {
  if [ -f ./script/rails ]; then 
    sudo rails s -p80 $@
  else
    sudo ./script/server -p80 $@
  fi
}

# database migrate
alias rdbm='rake db:migrate'

# tests
alias rspec='rake spec'

# rails logs, tailing and cleaning
alias tdl='tail -f ./log/development.log'
alias ttl='tail -f ./log/test.log'
alias ctl='> ./log/test.log'
alias cdl='> ./log/development.log'

~/.irbrc

require 'rubygems' rescue nil
require 'wirble'
require 'hirb'
require 'ap'

# load wirble
Wirble.init
Wirble.colorize

# load hirb
Hirb::View.enable

IRB.conf[:AUTO_INDENT] = true

if ENV.include?('RAILS_ENV')
  if !Object.const_defined?('RAILS_DEFAULT_LOGGER')
    require 'logger'
    Object.const_set('RAILS_DEFAULT_LOGGER', Logger.new(STDOUT))
  end

  def sql(query)
    ActiveRecord::Base.connection.select_all(query)
  end
  
  if ENV['RAILS_ENV'] == 'test'
    require 'test/test_helper'
  end

# for rails 3
elsif defined?(Rails) && !Rails.env.nil?
  if Rails.logger
    Rails.logger =Logger.new(STDOUT)
    ActiveRecord::Base.logger = Rails.logger
  end
  if Rails.env == 'test'
    require 'test/test_helper'
  end
else
  # nothing to do
end

# annotate column names of an AR model
def show(obj)
  y(obj.send("column_names"))
end

puts "> all systems are go wirble/hirb/ap/show <"

Note that if your’e using Bundler in your Rails app, AND use gems in your ~/.irbrc file AND attempt to start the Rails console; you’ll get errors/warnings on requiring them UNLESS you define them in your Gemfile. I use a ‘development’ group in my Gemfile for these, like so.

Gemfile

group :development do
  gem "wirble"
  gem "hirb"
  gem "awesome_print"
end

platforms :ruby_18 do
  gem 'ruby-debug'
end 

platforms :ruby_19 do
  gem 'ruby-debug19'
end