rack-coffee

Simple rack middleware for serving up CoffeeScript files as compiled javascript.

Usage

The options behave similarly to Rack::Static:

require 'rack/coffee'
use Rack::Coffee,
    :root => '/path/to/directory/above/url',
    :urls => '/javascipts'

For rails, presuming you've required 'rack/coffee' somehow, stick this in the Rails initializer config block:

config.middleware.use Rack::Coffee, :root => "#{RAILS_ROOT}/public"

Note however that by default this will not play nicely with javascript_include_tag's :cache option, you would need to compile your .coffee files before deploying. Alternately, use the rails asset pipeline.

Options

• :root: the directory above urls. Defaults to Dir.pwd.
• :urls: the directories in which to look for coffeescripts. May specify a string or an array of strings. Defaults to /javascripts.
• :cache-compile: When truthy, will create and look for tempfiles with the timestamp of the desired coffee file, and use those. Meant to speed up development of projects with lots of coffee files.
• :cache-control: Sets a Cache-Control header if present. Defaults to false. Values are interpreted like so:
  • true: max-age=86400
  • 3600: max-age=3600
  • :public or 'public': max-age=86400, public
  • [3600, :public] or %w(3600 public): max-age=3600, public
  • false or nil: disables cache header
• :bare: When true, disables the top-level function wrapper that CoffeeScript uses by default.
• :join: Set to a string, f.e. "index" to concat all the .coffee files before compiling

Bugs?

• Let me know here: Issue Tracking

Requirements

• CoffeeScript Gem and therefore execjs
• Rack

Thanks

• Jeremy Ashkenas, for creating CoffeeScript
• Brian Mitchell, for picking up the slack on handling the 0.5 update

History

• July 13, 2013: Release 1.01. Add "Licence" field to gemspec. See this for more info. As someone who recently had to do a license audit, I appreciate having this available.

• March 18, 2012: This release is NOT BACKWARDS COMPATIBLE with 0.9.x.

  • added a :cache_compile option. If truthy, will cache the compiled coffee to a tempfile timestamped with the modification time of the original.
  • BACKWARDS INCOMPATIBILITY chance the :cache and :ttl options into :cache_control. See documentation above for how the arguments work.
  • A fair bit of refactoring to make the main call method easier to follow.
  • BACKWARDS INCOMPATIBILITY remove :static option. If you want to serve stock javascript files from the same directory as your coffeescript files, stick a Rack::File in your middleware stack after Rack::Coffee.
  • BACKWARDS INCOMPATIBILITY remove :nowrap option in favor of :bare
  • Use execjs gem instead of coffee-script command. Thanks to jewel for kicking this off, even if I didn't use their code.

• May 5, 2011: release 0.9.1

  • Fix a bug in the 'join' option to reflect how command-line -p actually works

• May 3, 2011: release 0.9

  • Make '304 NOT MODIFIED' return a correct response body on Ruby 1.9 Aanand Prasad
  • Added 'join' option for concating your js

• January 21, 2011: release 0.3.3 Two changes by Jonathan Baudanza:

  • changed --nowrap to --bare, per a recent change to coffee-script. You may use :nowrap or :bare to indicate you want this
  • return 304 NOT MODIFIED for caching purposes

• March 21, 2010: release 0.3.2

  • added :nowrap option to config, allowing the disabling of the top-level function wrapper.

• March 6, 2010: release 0.3.1

  • options now take :cache and :ttl options for setting cache headers, should you decide to actually serve up hot coffeescripts outside of your development environment. Via Brian Mitchell.

• March 6, 2010: release 0.3 REQUIRES COFFEE-SCRIPT 0.5 OR HIGHER

  • CoffeeScript is now written in coffeescript. The included compiler is now based on node.js instead of being hosted in a ruby gem, so we're shelling out to the command-line interpreter. Thanks to Brian Mitchell for doing most of the dirty work, at least as far as ruby 1.9 is concerned.

• January 27, 2010: release 0.2 BACKWARDS INCOMPATIBLE

  • replace :url parameter in favor of :urls, now it behaves similarly to Rack::Static (Brian Mitchell)
  • add :static parameter, which when false will disable automatic asset serving of url misses via Rack::File, instead passing through to the app.
  • improve documentation for Rails
  • remove dependency on Pathname, oh if only it were stdlib instead of extlib

• January 26, 2010: First public release 0.1.

Copyright

Copyright (C) 2010 Matthew Lyon [email protected]

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.