cap_template.rb

def cap_install!
  log :capify, ""
  in_root do
    run("#{extify(:cap)} install", verbose: false)
  end
end

def include_cap_modules(cap_modules)
  escaped_modules = cap_modules.map(&Regexp.method(:escape))
  matcher = /require 'capistrano\/(#{escaped_modules.join('|')})'/
  uncomment_lines 'Capfile', matcher
end

CAP_MODULES = %w[rvm bundler rails/assets rails/migrations passenger]
CAP_GEMS = CAP_MODULES.map {|m| "capistrano-#{m.split('/').first}" }.uniq
CAP_LINKED_FILES = %w[.ruby-env]

gem_group :development do
  gem 'capistrano'
  CAP_GEMS.each do |cap_gem|
    gem cap_gem
  end
end

after_bundle do
  cap_install!
  include_cap_modules CAP_MODULES

  'config/deploy.rb'.tap do |deploy|
    gsub_file deploy, 'my_app_name', @app_name
    gsub_file deploy, /set :repo_url.*\n/, "set :repo_url, '[email protected]:noeassociates/#{@app_name}.git'\n"
    uncomment_lines deploy, /set :linked_(dirs|files)/
    gsub_file deploy,
              /(set :linked_files.*push\().*(\))\n/,
              '\1' + CAP_LINKED_FILES.map(&:inspect).join(', ') + '\2' + "\n"
  end
end