Nonstop Perpetual Motion


    0.3.1 • Public • Published


    Automated front-end tasks for ePublishing Jade and client sites.

    Getting Started

    This plugin requires Grunt v1.0.0.

    If you haven't used Grunt before, be sure to check out the Getting Started guide, as it explains how to create a Gruntfile as well as install and use Grunt plugins.

    NodeJS and Grunt-Cli must be installed before you proceed.

    If you are on Mac OS X and use homebrew. The following commands will get you ready to run grunt.

    brew install node
    npm install -g grunt-cli
    • To get started with using Grunt Jade you first need the right files within the project you wish to use this plugin. You will create a package.json and gruntfile.js in the root of your application. (unless someone has already done this)

    • The gruntfile should contain the following code which enables the default jade task:

    module.exports = function(grunt) {
      // Load the grunt jade task
      // Run jade-default Grunt Task
      grunt.registerTask('default', ['jade']);
    • The package.json file will contain the name of your site, version, and required dependencies that get installed before you can run "grunt". This file would look similar to this, and includes the actual required dependencies for Grunt Jade:
      "name": "jade-labs",
      "version": "0.1.0",
      "repository": {
        "type": "git",
        "url": ""
      "devDependencies": {
        "grunt": "^1.0.0",
        "grunt-jade": "git+ssh://"
    • Install the npm modules that this Grunt task depends on. To do this, run the following command in the application you wish to use this plugin.
    npm install

    Awesome! You are ready to run Grunt in the command line and watch Grunt Jade start working on your front-end assets. Grunt Jade will concatenate and minify the SCSS and Javascript. Here is what grunt-jade does when you run grunt:

    1. set-jade-paths: Resolve the locations of the active Jade gem, Jade child gem (if there is one), and site directories, making them available as config variables to subsequent tasks.
    2. npm-install: Install Node module dependencies in Jade and child gem locations if package.json files are present.
    3. clean: Clean (delete) previously compiled assets, if any.
    4. babel: Transpile standalone ES2015 scripts into public/javascripts/app with Babel.
    5. concat: Concatenate our default JS assets into a single script, jade.default.js.
    6. uglify: Minify the above script.
    7. webpack: Compile configured modules in app/js and bundle them with their dependencies using Webpack, saving them to public/javascripts/app/bundle.
    8. sass: Compile SCSS stylesheets to CSS using libsass.
    9. bless: (disabled by default) Split compiled stylesheets into chunks in order to comply with MSIE 9's stylesheet selector limit.

    Custom Tasks

    grunt-jade provides a couple of custom Grunt tasks that run as part of the default task set:

    • set-jade-paths makes Grunt's configuration aware of the ePublishing gems that a site depends on.
      • Spawns a Ruby script as a subprocess that does the following things:
        • Sets up Bundler and loads the site's RubyGems dependencies.
        • Prints a list of gems whose names match the regular expression /jade/ to stdout, as a JSON array.
      • Parses the JSON array and populates grunt.config.paths with entries corresponding to:
        • Jade's installation path as paths.jade
        • The child gem's installation path (if any) as paths.jadechild
        • Various relative asset directory paths (i.e. paths.js_src, paths.css, etc.)
    • npm-install iterates through the paths populated by set-jade-paths looking for package.json files.
      • If any results are found, it does the following for each:
        • Switches the current working directory to the parent folder of the current package.json result.
        • Runs npm install as a subprocess and waits for it to complete.
      • When all results have been processed, the task changes the working directory back to the site's root.
    • watch-all runs grunt watch and grunt webpack --watch at the same time in subprocesses

    Release Management

    grunt-epublishing installs the bumped package as a development dependency, and its package.json file provides an NPM script that can be used to increment release versions, commit, tag, push, and publish to NPM in a single step:

    # Example (bump patch version):
    $ npm run release patch

    Local Development

    If you're working on new build system features, you can link your local clone of grunt-epublishing into a Jade site like so:

    # Inside the grunt-epublishing directory:
    npm link
    # Change directories to the site:
    cd ../jade-site
    npm link @epublishing/grunt-epublishing



    npm i @epublishing/grunt-epublishing

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