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tumbler / Home, what is it? is just a very simple static file server for CoffeeScript/Less development written in CoffeeScript.

To run it, you need to have:

  • node.js installed (> 0.4)
  • CoffeeScript installed in such a way, coffee is in your path. (typically via npm)
  • If you want to use less as well, you need to have installed in such a way it is in your path as well. (typically via npm)

How to install

npm install tumbler -g

How to use?

Let's say you have the static files of your project in /my_project/static.

Go there, and run tumbler

./tumbler serve

All your static files (html, js, jpg, ...) are now available on [[http://localhost:10000/|localhost:10000]/<your relative path>].

But most importantly, if one queries for a something.js (respectively something.css) file, tumbler will look for (respectively something.less) file and will serve the result of its compilation.

Javascript Bundle

Let's suppose your web page use a lot of javascript files. Ultimately you want them to be deployed as one big javascript files to reduce the number of request.

To do so, you can define a javascript bundle. Create a myproject.js.bundle containing the javascript you want to include, one on each lines.

When the browser fetches filename.js, tumbler's response will differ depending on its mode:

  • tumbler serve -m debug All the files will be included as script tag in the dom. This makes debugging easier as the
  • tumbler serve -m concat The server will serve a big file, concatenation of all the other files.
  • tumbler serve -m release The file are compressed and optimized using uglified js.


Tumbler is not intended for production use. You probably want to compile all your files before putting them on a performant static file server.

To do so, create a project.targets file, you can then deploy by running tumbler deploy -t project.targets -d destination -m release