railify

#!/usr/bin/env ruby

# Generate a rails app (using EDGE rails), set up a git repo for it, and install common plugins
#
# USAGE: $0 some_app_name
#
# Adapted from http://github.com/foca/utility_scripts/
# Released under a WTFP license (http://sam.zoy.org/wtfpl/)

RAILS_DIR = File.expand_path('~/.rails')

SUBMODULES = {
  'vendor/rails' => 'git://github.com/rails/rails.git',
  'vendor/plugins/rspec' => 'git://github.com/dchelimsky/rspec.git',
  'vendor/plugins/rspec_on_rails' => 'git://github.com/dchelimsky/rspec-rails.git',
  'vendor/plugins/rspec_on_rails_matchers' => 'git://github.com/brandon/rspec-on-rails-matchers.git',
  'vendor/plugins/awesomeness' => 'git://github.com/collectiveidea/awesomeness.git',
  'vendor/plugins/exception_notification' => 'git://github.com/pager/exception_notification.git',
  'vendor/plugins/action_mailer_optional_tls' => 'git://github.com/collectiveidea/action_mailer_optional_tls.git'
}

GITIGNORE = %w[config/database.yml tmp/* log/*.log db/*.sqlite3 .DS_Store .rake_tasks backups coverage] * "\n"

ACTION_MAILER = <<-EOF
ActionMailer::Base.smtp_settings = {
  :address  => 'smtp.example.com',
  :domain => 'foobar.com',
  :port  => 587,
  :authentication => :plain,
  :user_name => 'user@example.com',
  :password => 'foobar',
  :tls => true
}

ExceptionNotifier.exception_recipients = %w(developers@example.com)
ExceptionNotifier.email_prefix = "[:PROJECT:] "
ExceptionNotifier.sender_address = %("Application Error" <developers@example.com>)
EOF

module Helpers
  LINE = 80

  def announcing(msg)
    print msg
    yield
    print "." * (LINE - msg.size - 6)
    puts "\e[32m[DONE]\e[0m"
  end

  def silent(command)
    system "#{command} &> /dev/null"
  end

  def git(message)
    silent "git add ."
    silent "git commit -m '#{message}'"
  end

  def rake(task, args={})
    args = args.map {|name,value| "#{name.to_s.upcase}=#{value}"}.join(" ")
    silent "rake #{task} #{args}"
  end
  
end

if __FILE__ == $0
  include Helpers

  app_name  = ARGV.first

  announcing "Fetching Edge Rails" do
    if File.exists?(RAILS_DIR)
      Dir.chdir(RAILS_DIR) { `git pull` }
    else
      `git clone git://github.com/rails/rails.git #{RAILS_DIR}`
    end
    
  end

  announcing "Creating application layout" do
    silent "ruby #{RAILS_DIR}/railties/bin/rails #{app_name}"
  end

  Dir.chdir(app_name) do
    announcing "Setting up rails app" do
      silent "rm README"
      silent "rm public/index.html"
      silent "rm log/*.log"
      silent "rm public/images/rails.png"
      silent "cp config/database.{,sample.}yml"
      silent "rm -r test"
    end

    announcing "Creating databases" do
      rake "db:create"
      rake "db:create", :rails_env => "test"
    end

    announcing "Configuring git repo" do
      silent "git init"
      File.open(".gitignore", "w") {|f| f << GITIGNORE }
      silent "touch {tmp,log}/.gitignore"
      git "Initial Rails app"
    end

    announcing "Installing submodules" do
      SUBMODULES.each do |path,repo|
        `git submodule add #{repo} #{path}`
      end
      git "Adding submodules"
    end

    announcing "Generating RSpec base files" do
      silent "script/generate rspec"
      git "Generating RSpec"
    end
    
    announcing "Configuring email" do
      File.open('config/initializers/email.rb', 'w+') {|f| f << ACTION_MAILER.gsub(':PROJECT:', app_name.upcase)}
      git "Configuring email"
    end
  end
  
end