Guardfile

## Uncomment to clear the screen before every task
# clearing :on

source_dir = 'app'
target_dir = 'public'
build_at_start = true

group :shared do

  coffeescript_options = {
    input: "#{source_dir}/coffee",
    output: "#{source_dir}/js",
    all_on_start: true,
    shallow: false,
    patterns: [%r{^app/.+\.(coffee|coffee\.md|litcoffee)$}]
  }

  guard 'coffeescript', coffeescript_options do
    coffeescript_options[:patterns].each { |pattern| watch(pattern) }
  end

  guard :sass, input: "#{source_dir}/sass",
                output: "#{source_dir}/css",
                all_on_start: build_at_start

  guard :copy, from: source_dir,
                to: target_dir,
                mkpath: true,
                run_at_start: build_at_start do
    watch(%r{.+\.(html|csv|json|png|jpg|ico)$})
  end

end

group :development do

  guard :copy, from: 'bower_components',
                to: "#{target_dir}/lib",
                mkpath: true,
                run_at_start: build_at_start do
    watch(%r{.+\.(min\.css|min\.js|min\.js\.map)$})
  end

  guard :jammit, output_folder: "#{target_dir}/assets",
                 config_path: 'config/assets_dev.yml',
                 package_on_start: build_at_start do
    watch(%r{^#{Regexp.quote(source_dir)}/css/.+\.css})
    watch(%r{^#{Regexp.quote(source_dir)}/js/.+\.js})
  end

  guard :livereload do
    watch(%r{#{Regexp.quote(target_dir)}/.+\.(css|js|html|png|jpg|csv|json)})
  end

end

group :production do

  guard :copy, from: 'bower_components',
                to: "#{target_dir}/lib",
                mkpath: true,
                run_at_start: build_at_start do
    watch(%r{.+\.(min\.css|min\.js)$})
  end

  guard :jammit, output_folder: "#{target_dir}/assets",
                 package_on_start: build_at_start do
    watch(%r{^#{Regexp.quote(source_dir)}/css/.+\.css})
    watch(%r{^#{Regexp.quote(source_dir)}/js/.+\.js})
  end

end