#!/usr/bin/env ruby

# Generate a rails app (using EDGE rails), set up a git repo for it, install GemsOnRails,
# haml, rspec, and make_resourceful
#
# USAGE: $0 some_app_name
#
# See http://github.com/foca/utility_scripts/ for the latest version
# Released under a WTFP license (http://sam.zoy.org/wtfpl/)

RAILS_SVN_CHECKOUT = '/Users/foca/Rails/_rails'

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 templates
    { :gitignore => %w[config/database.yml tmp/* log/*.log db/*.sqlite3 db/schema.rb public/stylesheets/application.css] * "\n",
      :routes    => ["ActionController::Routing::Routes.draw do |map|", "end"] * "\n" }
  end

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

  def braid(repo, dir, type="svn")
    silent "braid add #{repo} --type #{type} #{dir}"
    silent "git merge braid/track"
  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
    Dir.chdir(RAILS_SVN_CHECKOUT) { silent "svn update" }
  end

  announcing "Creating application layout" do
    silent "ruby #{RAILS_SVN_CHECKOUT}/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"
      File.open("config/routes.rb", "w") {|f| f << templates[:routes] }
    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 << templates[:gitignore] }
      silent "touch {tmp,log}/.gitignore"
      git "Basic rails app structure"
    end

    announcing "Freezing rails" do
      braid "http://dev.rubyonrails.org/svn/rails/trunk", "vendor/rails"
    end

    announcing "Installing GemsOnrails" do
      silent "gemsonrails"
      git "Froze GemsOnRails plugin"
    end

    announcing "Installing haml" do
      silent "haml --rails ."
      rake "gems:freeze", :gem => "haml"
      git "Froze haml gem and plugin"
    end

    announcing "Installing RSpec" do
      braid "http://rspec.rubyforge.org/svn/trunk/rspec", "vendor/plugins/rspec"
      braid "http://rspec.rubyforge.org/svn/trunk/rspec_on_rails", "vendor/plugins/rspec_on_rails"
    end

    announcing "Generating RSpec base files" do
      silent "script/generate rspec"
      git "Added RSpec base files"
    end

    announcing "Installing make_resourceful" do
      braid "http://svn.hamptoncatlin.com/make_resourceful/trunk", "vendor/plugins/make_resourceful"
    end
  end

end