Mac OS X 10.8 : RVM + Homebrew + Ruby 1.9.3 + .pryrc

.pryrc

require 'benchmark'

# textmate as editor
Pry.config.editor = 'mate -w'

Pry.config.color = true
Pry.config.pager = true

# alias 'q' for 'exit'
Pry.config.commands.alias_command 'q', 'exit-all'

# Better colors - by default the headings for methods are too 
# similar to method name colors leading to a "soup"
# These colors are optimized for use with Solarized scheme 
# for your terminal
# Pry.config.ls.separator = "\n" # new lines between methods
Pry.config.ls.heading_color = :magenta
Pry.config.ls.public_method_color = :blue
Pry.config.ls.protected_method_color = :yellow
Pry.config.ls.private_method_color = :bright_black

# This prompt shows the ruby version (useful for RVM)
# Ex: [1.9.3] 0:(main) >
prompt_proc = lambda do |obj, nest_level, _| 
  ruby_info = ""
  ruby_info << "\e[32m#{Rails.version}\e[0m@" if defined?(Rails)
  ruby_info << "\e[31m#{RUBY_VERSION}\e[0m"
  ruby_info = ruby_info
  nest_info = "#{nest_level}"
  obj_info  = "\e[33m#{obj}\e[0m"
  "[#{ruby_info}] #{nest_info}:(#{obj_info}) > " 
end
Pry.prompt = [prompt_proc, prompt_proc]

def require_without_bundler gem_name
  _gem_path = Dir.glob("#{Gem.path.grep(/global$/).first}/gems/#{gem_name}*/lib").first
  if _gem_path
    $LOAD_PATH << _gem_path
    require gem_name
  else
    raise LoadError, "Please put #{gem_name} in your global"
  end
end

# Load 'awesome_print'
begin
  require_without_bundler 'awesome_print'
  
  # The following line enables awesome_print for all pry output,
  # and it also enables paging
  Pry.config.print = proc {|output, value| Pry::Helpers::BaseHelpers.stagger_output("=> #{value.ai}", output)}
  
  # If you want awesome_print without automatic pagination, use the line below
  # Pry.config.print = proc { |output, value| output.puts value.ai }
rescue LoadError => err
  # puts "gem install awesome_print"
end

# Load 'hirb'
begin
  require_without_bundler 'hirb'
  
  Pry.config.print = proc { |output, value| Hirb::View.view_or_page_output(value) || Pry::DEFAULT_PRINT.call(output, value) }
  
  Hirb.enable
rescue LoadError => err
  # puts "gem install hirb"
end

# Load plugins (only those I whitelist)
Pry.config.should_load_plugins = false
Pry.plugins['doc'].activate!

# Useful Collections
def a
  Array.new(10){rand(100)}
end
 
def h
  { :foo => rand(100), :bar => rand(100) }
end

# Benchmarking
def bench(repetitions = 100, &block)
  Benchmark.bm{|x| x.report{repetitions.times(&block)}}
end

# Launch Pry with access to the entire Rails stack.
# If you have Pry in your Gemfile, you can pass: ./script/console --irb=pry instead.
# If you don't, you can load it through the lines below :)
rails = File.join Dir.getwd, 'config', 'environment.rb'

if File.exist?(rails) && ENV['SKIP_RAILS'].nil?
  require rails
  
  if Rails.version[0..0] == "2"
    require 'console_app'
    require 'console_with_helpers'
  elsif Rails.version[0..0] == "3"
    require 'rails/console/app'
    require 'rails/console/helpers'
  else
    warn "[WARN] cannot load Rails console commands (Not on Rails2 or Rails3?)"
  end
  
  puts "Rails environment [\e[31m#{Rails.env}\e[0m] loaded."
  puts "RVM: \e[31m#{`rvm current`}\e[0m"
end

if defined?(Rails) && Rails.env
  require 'logger'
  Rails.logger = Logger.new($stdout)
  
  # automatically call `reload` every time a new command is typed
  # Pry.hooks.add_hook(:before_eval, :reload_everything) { reload! }
  
  # Add Rails console helpers (like `reload!`) to pry
  if defined?(Rails::ConsoleMethods)
    extend Rails::ConsoleMethods
  end
  
  def r
    reload!
  end
  
  def show obj
    ap obj.send :column_names
  end
  
  # sql for arbitrary SQL commands through the AR
  def sql query
    ActiveRecord::Base.connection.execute query
  end
  
  def toggle_db_logging
    if $db_logging_enabled
      ActiveRecord::Base.logger = Logger.new(nil) if defined?(ActiveRecord)
      Mongoid.logger = Logger.new(nil) if defined?(Mongoid)
      $db_logging_enabled = false
    else
      ActiveRecord::Base.logger = Rails.logger if defined?(ActiveRecord)
      Mongoid.logger = Rails.logger if defined?(Mongoid)
      $db_logging_enabled = true
    end
  end
  
  toggle_db_logging
end

install.sh

# RVM
curl https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer | bash -s stable

# .rvmrc

export rvm_path="/Users/user/.rvm"
export rvm_usr_path="/Users/user/.rvm/usr"
export rvm_project_rvmrc_default=1
export rvm_project_rvmrc=1
export rvm_pretty_print_flag=1
export rvm_trust_rvmrcs_flag=1

export CFLAGS="-O2 -arch x86_64"
export LDFLAGS="-L/usr/local/lib"
export CPPFLAGS="-I/usr/local/include"

# Homebrew with gcc
ruby -e "$(curl -fsSkL raw.github.com/mxcl/homebrew/go)"

brew update
brew install libksba
brew tap homebrew/dupes
brew install autoconf automake apple-gcc42

# Ruby 1.9.3 (railsexpress) with RVM

rvm pkg install readline libyaml openssl
rvm install ruby-1.9.3-p374 -n railsexpress --patch railsexpress