Grunt config for Rails

rails-grunt.js

// This is the main application configuration file.  It is a Grunt
// configuration file, which you can learn more about here:
// https://github.com/cowboy/grunt/blob/master/docs/configuring.md
//
module.exports = function(grunt) {

  grunt.initConfig({

    // The clean task ensures all files are removed from the dist/ directory so
    // that no files linger from previous builds.
    clean: ["../public/assets/js/debug", "../public/assets/js/release"],

    // The lint task will run the build configuration and the application
    // JavaScript through JSHint and report any errors.  You can change the
    // options for this task, by reading this:
    // https://github.com/cowboy/grunt/blob/master/docs/task_lint.md
    lint: {
      files: [
        "build/config.js", "app/**/*.js"
      ]
    },

    // The jshint option for scripturl is set to lax, because the anchor
    // override inside main.js needs to test for them so as to not accidentally
    // route.
    jshint: {
      options: {
        scripturl: true
      }
    },

    // The jst task compiles all application templates into JavaScript
    // functions with the underscore.js template function from 1.2.4.  You can
    // change the namespace and the template options, by reading this:
    // https://github.com/tbranyen/build-tasks/tree/master/jst
    //
    // The concat task depends on this file to exist, so if you decide to
    // remove this, ensure concat is updated accordingly.
    jst: {
      "../public/assets/js/debug/templates.js": [
        "app/templates/**/*.html"
      ]
    },

    // The concatenate task is used here to merge the almond require/define
    // shim and the templates into the application code.  It's named
    // dist/debug/require.js, because we want to only load one script file in
    // index.html.
    concat: {
      "../public/assets/js/debug/require.js": [
        "assets/js/libs/almond.js",
        "../public/assets/js/debug/templates.js",
        "../public/assets/js/debug/require.js"
      ]
    },

    // This task uses the MinCSS Node.js project to take all your CSS files in
    // order and concatenate them into a single CSS file named index.css.  It
    // also minifies all the CSS as well.  This is named index.css, because we
    // only want to load one stylesheet in index.html.
    mincss: {
      "../public/assets/css/release/index.css": [
        "assets/css/style.css"
      ]
    },

    // Takes the built require.js file and minifies it for filesize benefits.
    min: {
      "../public/assets/js/release/require.js": [
        "../public/assets/js/debug/require.js"
      ]
    },

    // Running the server without specifying an action will run the defaults,
    // port: 8080 and host: 127.0.0.1.  If you would like to change these
    // defaults, simply add in the properties `port` and `host` respectively.
    //
    // Changing the defaults might look something like this:
    //
    // server: {
    //   host: "127.0.0.1", port: 9001
    //   debug: { ... can set host and port here too ...
    //  }
    //
    //  To learn more about using the server task, please refer to the code
    //  until documentation has been written.
    server: {
      debug: {
        folders: {
          "app": "../public/assets/js/debug",
          "app/templates": "app/templates",
          "assets/js/libs": "../public/assets/js/debug"
        }
      },

      release: {
        folders: {
          "app": "../public/assets/js/release",
          "app/templates": "app/templates",
          "assets/js/libs": "../public/assets/js/release",
          "assets/css": "../public/assets/js/release"
        }
      }
    },

    // This task uses James Burke's excellent r.js AMD build tool.  In the
    // future other builders may be contributed as drop-in alternatives.
    requirejs: {
      // Include the main configuration file
      mainConfigFile: "app/config.js",

      // Output file
      out: "../public/assets/js/debug/require.js",

      // Root application module
      name: "config",

      // Do not wrap everything in an IIFE
      wrap: false
    }

  });

  // The default task will remove all contents inside the dist/ folder, lint
  // all your code, precompile all the underscore templates into
  // dist/debug/templates.js, compile all the application code into
  // dist/debug/require.js, and then concatenate the require/define shim
  // almond.js and dist/debug/templates.js into the require.js file.
  grunt.registerTask("default", "clean lint jst requirejs concat");

  // The debug task is simply an alias to default to remain consistent with
  // debug/release.
  grunt.registerTask("debug", "default");

  // The release task will run the debug tasks and then minify the
  // dist/debug/require.js file and CSS files.
  grunt.registerTask("release", "default min mincss");

};

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