create Rails config files as Rake task

setup.rake

# -*- encoding: utf-8 -*-

namespace :setup do
  def copy_config(options = {})
    Dir["#{RAILS_ROOT}/**/*.sample", "#{RAILS_ROOT}/**/*.example"].each do |source|
      target = source.sub(/\.(ex|s)ample$/, '')
      if options[:force] or not File.exist?(target)
        require 'fileutils'
        puts "Create config file '#{target}' from '#{source}'"
        FileUtils.copy_file source, target
      end
    end
  end
  def copy_config!
    copy_config(:force => true)
  end

  desc "Create config file from *.sample or *.example"
  task :config do |t|
    copy_config
  end

  namespace :config do
    desc "Create config file forcibly from *.sample or *.example"
    task :force do |t|
      copy_config!
    end
  end
end