Peforms all steps necessary to create a Rails project that will use RSpec instead of TestUnit

rspec-rails-new.rb

#!/usr/bin/env ruby

# Creates a new Rails project configured to use
# rspec instead of TestUnit.
#
# - Keith Bennett, Github/Twitter: keithrbennett

ADD_RSPEC_COMMAND = %{

group :development, :test do
  gem 'rspec-rails'
end
}

def run_command(command)
  command << " 2>&1"  # redirect stderr to stdout
  puts command
  puts `#{command}`
  puts
end

PROJECT_NAME = ARGV[0]

run_command "rails new #{PROJECT_NAME} -T"

puts "Changing to project (#{PROJECT_NAME}) directory..."
Dir.chdir(PROJECT_NAME)

puts 'Adding rspec-rails to Gemfile...'
File.write('Gemfile', File.read('Gemfile') + ADD_RSPEC_COMMAND)
puts

puts 'Calling bundle install to process rspec-rails...'
run_command "bundle install"

puts 'Have rails install create spec directories/files...'
run_command "rails g rspec:install"

puts "Done."