_utils.rb

def git_commit(message, &block)
  yield if block_given?
  git :add => "."
  git :commit => "--quiet --message '#{message}'"
end

def run_and_commit(command, options={})
  commit_message = options[:message] ? "#{options[:message]}\n\n#{command}" : command
  git_commit(commit_message) do
    run command
  end
end

def bundle(command, options = {})
  default_options = { :quiet => true, :local => false }
  actual_options = default_options.merge(options)
  options = actual_options.inject("") { |memo, kv| memo << " --#{kv.first}" if kv.last; memo }
  run "bundle #{command} #{options}"
end

# Install a file
#
# Options:
#
# :method => Thor::Action to use to install, e.g. :get, :copy_file or :template
#            Default is :get (for http repository) or :copy_file (local repository)
# :source => Use this source file (relative to file_templates/)
# :flavor => Subdir of file_templates to look for source file of same name as dest file (cannot be used with :source)
#
def install_file(path, options = {})
  source_path = "#{TEMPLATES_REPOSITORY}/file_templates/" +
    if options[:source] ; options[:source]
    elsif options[:flavor] ; "#{options[:flavor]}/#{path}"
    else path
    end
  method = options.delete(:method) || (TEMPLATES_REPOSITORY =~ /^https?:/ ? :get : :copy_file)
  send method, source_path, path
end

def replace_file(path, options = {})
  remove_file path
  install_file path, options
end

def replace_file_with(path, string)
  File.open(path, "w") { |file| file.write string }
end

class Hash
  def deep_merge!(other_hash)
    other_hash.keys.each do |key|
      if other_hash[key].is_a?(Hash) && self[key].is_a?(Hash)
        self[key].deep_merge!(other_hash[key])
      else
        self[key] = other_hash[key]
      end
    end
  end
end

require 'yaml'

def add_to_locale(hash, locale_file = 'config/locales/en.yml')
  en_strings = YAML::load_file(locale_file)
  en_strings['en'].deep_merge!(hash)
  File.open(locale_file, 'w') do |file|
    file.write YAML.dump(en_strings)
  end
end