Vlad deploy.rb for PHP applications

deploy.rb

set :shared_paths, {
  'log'    => 'log',
  'pids'   => 'tmp/pids',
  'sockets'   => 'tmp/sockets',
}
set :symlinks, {
  'rvmrc' => '.rvmrc',
}
set :skip_scm, false
set :perm_owner, 'git'
set :perm_group, 'git'

set :user, "git"
set :domain,    "#{user}@domain.com"
set :application, "my-app"
set :repository, "#{domain}:#{application}.git"

set :application_root, "/var/www/#{application}"

set :stages, {:staging => {:branch => 'master'}}

def colorize(text, color_code)
  "#{color_code}#{text}\e[0m"
end

def red(text); colorize(text, "\e[31m"); end
def green(text); colorize(text, "\e[32m"); end

def say(msg)
  puts green(">>> #{msg}")
end

def rake(command)
  cmd = "cd #{current_path} && RAILS_ENV=#{rails_env} bundle exec rake #{command}"
  cmd << " --trace" if ENV['VERBOSE']
  run cmd
end

def invoke(task)
  Rake::Task[task].invoke
end

desc "Base deployment cycle"
task "vlad:deploy:base" do
  say "Deploying for environment: #{rails_env}"
  invoke "vlad:update"
  say "Symlinking shared files"
  invoke "vlad:symlink"
  # say "Notify NewRelic deployment"
  # invoke "vlad:new_relic"
  # say "Starting app server (unicorn)"
  # invoke "vlad:start_app"
  say "Cleaning up"
  invoke "vlad:cleanup"
end

stages.each do |stage, opts|
  desc "Set #{stage} stage variables"
  task "vlad:stage:#{stage}" do
    set :deploy_to, "#{application_root}/#{stage}"
    set :revision, "origin/#{opts[:branch]}"
    set :rails_env, stage
  end

  desc "Deploy #{stage} stage"
  task "vlad:deploy:#{stage}" => ["vlad:stage:#{stage}", "vlad:deploy:base"]
end

desc "Deploy defualt stage (staging)"
task 'vlad:deploy' => ['vlad:deploy:staging']