Gruntfile.js

'use strict'
module.exports = function (grunt) {
  grunt.initConfig({

    // Define our Pattern Library and Application Assets paths
    applicationAssetsPath: 'app/assets',
    patternLibraryPath: '../sf-dahlia-pattern-library',

    // Delete the old toolkit.css
    clean: {
      css: ['<%= applicationAssetsPath %>/stylesheets/toolkit.css']
    },

    // Copy the latest compiled toolkit.css file from the pattern library into our app
    copy: {
      main: {
        files: [
          {
            src: '<%= patternLibraryPath %>/dist/toolkit/styles/toolkit.css',
            dest: '<%= applicationAssetsPath %>/stylesheets/toolkit.scss'
          }
        ]
      }
    },

    // Make any string replacements that are needed when transfering assets to app.
    replace: {
      dist: {
        options: {
          patterns: [
            {
              match: 'http://fonts.googleapis.com',
              replacement: '//fonts.googleapis.com'
            },
            {
              match: /"\.\.\/images\/([a-zA-Z0-9\-_@]*\.(png|jpg|svg))"/g,
              replacement: "asset-path('$1')"
            }
          ],
          usePrefix: false
        },
        files: [
          {
            expand: true,
            flatten: true,
            src: ['<%= applicationAssetsPath %>/stylesheets/toolkit.scss'],
            dest: '<%= applicationAssetsPath %>/stylesheets/'
          }
        ]
      }
    }
  })

  // load tasks
  grunt.loadNpmTasks('grunt-contrib-clean')
  grunt.loadNpmTasks('grunt-contrib-copy')
  grunt.loadNpmTasks('grunt-replace-regex')

  // register task
  grunt.registerTask('default', [
    'clean',
    'copy',
    'replace'
  ])

  grunt.registerTask('deploy', [
    'clean',
    'copy',
    'replace'
  ])
}