A gruntfile example with livereload

Gruntfile.js

'use strict';

// # Globbing
// for performance reasons we're only matching one level down:
// 'test/spec/{,*/}*.js'
// use this if you want to recursively match all subfolders:
// 'test/spec/**/*.js'

module.exports = function (grunt) {

  // Load grunt tasks automatically
  require('load-grunt-tasks')(grunt);

  // Time how long tasks take. Can help when optimizing build times
  require('time-grunt')(grunt);

  // Turn on the stack trace by default
  grunt.option('stack', true);

  // Define the configuration for all the tasks
  grunt.initConfig({

    // Read the package file
    pkg: grunt.file.readJSON('package.json'),

    // Project settings
    config: {
      // Configurable paths
      app: 'app',
      dist: 'dist'
    },

    // Watches files for changes and runs tasks based on the changed files
    watch: {
      jade: {
        files: ['<%= config.app %>/{,*/}*.jade'],
        tasks: ['jade:server']
      },
      coffee: {
        files: ['<%= config.app %>/scripts/{,*/}*.{coffee,litcoffee,coffee.md}'],
        tasks: ['newer:coffee', 'jshint:server']
      },
      js: {
        files: ['<%= config.app %>/scripts/{,*/}*.js'],
        tasks: ['newer:copy:server', 'jshint:server']
      },
      jshint: {
        files: ['.jshintrc'],
        tasks: ['jshint:server']
      },
      gruntfile: {
        files: ['Gruntfile.js'],
        tasks: ['jshint:gruntfile']
      },
      sass: {
        files: ['<%= config.app %>/styles/{,*/}*.{scss,sass}'],
        tasks: ['sass', 'autoprefixer']
      },
      styles: {
        files: ['<%= config.app %>/styles/{,*/}*.css'],
        tasks: ['newer:copy:server', 'autoprefixer']
      },
      livereload: {
        options: {
          livereload: '<%= connect.livereload.options.livereload %>'
        },
        files: [
          '.tmp/{,*/}*.html',
          '.tmp/styles/{,*/}*.css',
          '.tmp/scripts/{,*/}*.js',
          '<%= config.app %>/images/{,*/}*'
        ]
      }
    },

    // The actual grunt server settings
    connect: {
      livereload: {
        options: {
          port: 9000,
          livereload: 35729,
          hostname: '0.0.0.0',
          open: true,
          base: [
            '.tmp',
            '<%= config.app %>'
          ]
        }
      },
      dist: {
        options: {
          open: 'http://msif.local',
          livereload: false
        }
      }
    },

    // Empties folders to start fresh
    clean: {
      dist: {
        files: [{
          dot: true,
          src: [
            '.tmp',
            '<%= config.dist %>/*',
            '!<%= config.dist %>/.git*'
          ]
        }]
      },
      server: '.tmp'
    },

    // Compile Jade to HTML
    jade: {
      options: {
        pretty: true,
        data: function() {
          // Return an object of data to pass to templates
          return grunt.file.readJSON('data.json');
        },
      },
      server: {
        files: [{
          expand: true,
          cwd: '<%= config.app %>',
          dest: '.tmp/',
          src: 'layouts/*.jade',
          ext: '.html',
          flatten: true
        }]
      },
      dist: {
        files: [{
          expand: true,
          cwd: '<%= config.app %>',
          dest: '<%= config.dist %>/',
          src: 'layouts/*.jade',
          ext: '.html',
          flatten: true
        }]
      },
    },

    // Make sure code styles are up to par and there are no obvious mistakes
    jshint: {
      options: {
        jshintrc: '.jshintrc',
        reporter: require('jshint-stylish')
      },
      gruntfile: {
        options: {
          jshintrc: '.jshintrc'
        },
        src: 'Gruntfile.js'
      },
      server: {
        src: [
          '.tmp/scripts/{,*/}*.js',
        ]
      },
      dist: {
        options: {
          force: true // Usually false
        },
        src: [
          '<%= jshint.server.src %>'
        ]
      }
    },

    // Compiles CoffeeScript to JavaScript
    coffee: {
      options: {
        bare: true
      },
      server: {
        files: [{
          expand: true,
          cwd: '<%= config.app %>/scripts',
          src: '{,*/}*.{coffee,litcoffee,coffee.md}',
          dest: '.tmp/scripts',
          ext: '.js'
        }]
      },
      dist: {
        files: [{
          expand: true,
          cwd: '<%= config.app %>/scripts',
          src: '{,*/}*.{coffee,litcoffee,coffee.md}',
          dest: '<%= config.dist %>/scripts',
          ext: '.js'
        }]
      },
    },

    // Compiles Sass to CSS and generates necessary files if requested
    sass: {
      options: {
        style: 'expanded'
      },
      all: {
        src: '<%= config.app %>/styles/main.scss',
        dest: '.tmp/styles/main.css'
      }
    },

    // Add vendor prefixed styles
    autoprefixer: {
      options: {
        browsers: ['last 2 versions']
      },
      dist: {
        files: [{
          expand: true,
          cwd: '.tmp/styles/',
          src: '{,*/}*.css',
          dest: '.tmp/styles/',
          ext: '.css'
        }]
      }
    },

    validation: {
      options: {
        relaxerror: [ //ignores these errors
          'Bad value X-UA-Compatible for attribute http-equiv on element meta.',
          'Attribute autocomplete not allowed on element textarea at this point.',
          'Attribute autocapitalize not allowed on element input at this point.'
        ],
        reset: true,
        reportpath: false
      },
      files: {
        src: [
          '<%= config.dist %>/*.html'
        ]
      }
    },


    // Reads HTML for usemin blocks to enable smart builds that automatically
    // concat, minify and revision files. Creates configurations in memory so
    // additional tasks can operate on them
    useminPrepare: {
      options: {
        dest: '<%= config.dist %>',
        staging: '.tmp'
      },
      html: ['<%= config.dist %>/{,*/}*.html']
    },

    concat: {
      options: {
        sourceMap: true
      }
    },

    // Performs rewrites based on useminPrepare configuration
    usemin: {
      options: {
        assetsDirs: [
          '<%= config.dist %>',
          '<%= config.dist %>/images'
        ]
      },
      html: ['<%= config.dist %>/{,*/}*.html'],
      css: ['<%= config.dist %>/styles/{,*/}*.css']
    },

    // The following *-min tasks produce minified files in the dist folder
    imagemin: {
      dist: {
        files: [{
          expand: true,
          cwd: '<%= config.app %>/images',
          src: '{,*/}*.{gif,jpeg,jpg,png}',
          dest: '<%= config.dist %>/images'
        }]
      }
    },

    // Copies remaining files to places other tasks can use
    copy: {
      dist: {
        files: [
          {
            expand: true,
            dot: true,
            cwd: '<%= config.app %>',
            dest: '<%= config.dist %>',
            src: [
              '*.{ico,png,txt,svg}',
              '.htaccess',
              '*.php',
              '*.html',
              'images/{,*/}*.{webp,svg}',
              'fonts/{,*/}*.*'
            ]
          },{
            expand: true,
            cwd: '<%= config.app %>/bower_components/fontawesome/fonts/',
            dest: '<%= config.dist %>/fonts/',
            src: '*.*',
            flatten: true
          },{
            expand: true,
            cwd: '<%= config.app %>/bower_components/bootstrap-sass-official/assets/fonts/bootstrap/',
            dest: '<%= config.dist %>/fonts/',
            src: '*.*',
            flatten: true
          },
          {
            src: '<%= config.app %>/bower_components/jquery/dist/jquery.min.js',
            dest: '<%= config.dist %>/scripts/jquery.min.js'
          },
          {
            src: '<%= config.app %>/bower_components/jquery/dist/jquery.min.map',
            dest: '<%= config.dist %>/scripts/jquery.min.map'
          }
        ]
      },
      server: {
        files: [
          {
            expand: true,
            dot: true,
            cwd: '<%= config.app %>/styles',
            dest: '.tmp/styles/',
            src: '{,*/}*.css'
          },{
            // Copy any javascript files to the temo directory
            expand: true,
            dot: true,
            cwd: '<%= config.app %>/scripts/vendor',
            dest: '.tmp/scripts/',
            src: '{,*/}*.js'
          },{
            expand: true,
            cwd: '<%= config.app %>/bower_components/fontawesome/fonts/',
            dest: '.tmp/fonts/',
            src: '*.*',
            flatten: true
          },{
            expand: true,
            cwd: '<%= config.app %>/bower_components/bootstrap-sass-official/assets/fonts/bootstrap/',
            dest: '.tmp/fonts/',
            src: '*.*',
            flatten: true
          }
        ]
      },
    },

    // Generates a custom Modernizr build that includes only the tests you
    // reference in your app
    modernizr: {
      devFile: '<%= config.app %>/bower_components/modernizr/modernizr.js',
      outputFile: '<%= config.dist %>/scripts/modernizr.js',
      files: [
        '<%= config.dist %>/scripts/{,*/}*.js',
        '<%= config.dist %>/styles/{,*/}*.css',
        '!<%= config.dist %>/scripts/vendor/*'
      ],
      uglify: true,
      extra: {
        shiv: false,
        load: false
      }
    },

    bump: {
      options: {
        files: ['package.json', 'bower.json'],
        push: true,
        pushTo: 'origin',
        createTag: true,
        tagName: 'v%VERSION%',
        tagMessage: 'Version %VERSION%',
        commitFiles: ['<%= bump.options.files %>', 'CHANGELOG.md'],
        commitMessage: 'Bumped version to v%VERSION%'
      }
    },

    changelog: {
      options: {
        editor: 'atom -w'
      }
    },

    // Run some tasks in parallel to speed up build process
    concurrent: {
      options: {
        logConcurrentOutput: true
      },
      server: [
        'sass',
        'newer:coffee:server',
        'newer:jade:server',
        'newer:copy:server'
      ],
      dist: [
        'coffee:dist',
        'sass',
        'jade:dist',
        'imagemin'
      ]
    }

  });

  // Build all the things
  grunt.registerTask('default', [
    'clean:server',
    'concurrent:server',
    'autoprefixer',
  ]);

  grunt.registerTask('serve', function (target) {
    if (target === 'dist') {
      return grunt.task.run(['build', 'connect:dist:keepalive']);
    }

    grunt.task.run([
      'default',
      'connect:livereload',
      'watch'
    ]);

  });

  grunt.registerTask('server', function (target) {
    grunt.log.warn('The `server` task has been deprecated. Use `grunt serve` to start a server.');
    grunt.task.run([target ? ('serve:' + target) : 'serve']);
  });

  grunt.registerTask('test', [
    'newer:jade:dist',
    'newer:coffee:server',
    'jshint:server',
    'validation'
  ]);

  grunt.registerTask('build', [
    'clean:dist',
    'concurrent:dist',
    'useminPrepare',
    'jshint:dist',
    'autoprefixer',
    'concat',
    'cssmin',
    'uglify',
    'copy:dist',
    'modernizr',
    'usemin',
    'connect:dist'
  ]);

};