Piperun

Piperun allows you to process your application's assets in using pipelines seamlessly. It is more lightweight than the Rails pipeline, but more appropriate than task runners like Grunt.

It takes assets from a source directory, applies a number a filters to transform them, and puts the result in a destination directory.

Temporary files are automagically managed by Piperun so you do not have to bother about them.

Installation

Add this line to your application's Gemfile:

gem 'piperun'

And then execute:

$ bundle

Or install it yourself as:

$ gem install piperun

Usage

Create a Pipefile.rb file at the root of your project, in which are defined one or more pipelines :

pipeline 'scripts', 'public/js' do
  match '*.js'
  yui_js
end

# Slightly more complex example
pipeline 'styles', 'public/css' do
  parallel do # execute two pipelines on the same source files
    run do # take sass and scss files and compile them into css
      match '*.sass', '*.scss'
      sass # sass and scss filters are identical
    end

    run do # take only css files
      match '*.css'
    end
  end

  # We now have only css files, either copied from source or compiled from sass

  yui_css # minify the stylesheets
end

Now run piperun in your root directory, and your files will be available in public/js and public/css !

Filters

The following filters are supported :

• Copy
• Match
• Parallel
• Tar
• Gz
• Sass / Scss
• Browserify
• YUI JS and CSS compressors
• Typescript

Feel free to make a PR to add some. Check out examples in lib/piperun/filters/ to see how.

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request