Gruntfile less + swig

Gruntfile.js

'use strict';

var lrSnippet = require('grunt-contrib-livereload/lib/utils').livereloadSnippet;
var mountFolder = function (connect, dir) {
  return connect.static(require('path').resolve(dir));
};

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

module.exports = function (grunt) {

  require('matchdep').filterDev('grunt-*').forEach(grunt.loadNpmTasks);

  var yeomanConfig = {
    app: 'app',
    dist: 'dist'
  };

  grunt.initConfig({
    yeoman: yeomanConfig,
    watch: {
      swig: {
        files: ['<%= yeoman.app %>/**/*.{swig,twig}'],
        tasks: ['swig']
      },
      recess: {
        files: ['<%= yeoman.app %>/styles/less/{,*/}*.less'],
        tasks: ['recess']
      },
      livereload: {
        files: [
          '{.tmp,<%= yeoman.app %>}/*.html',
          '{.tmp,<%= yeoman.app %>}/styles/{,*/}*.css',
          '{.tmp,<%= yeoman.app %>}/scripts/{,*/}*.js',
          '<%= yeoman.app %>/images/{,*/}*.{png,jpg,jpeg,gif,webp,svg}'
        ],
        tasks: ['livereload']
      }
    },
    connect: {
      options: {
        port: 9000,
        hostname: '0.0.0.0'
      },
      livereload: {
        options: {
          middleware: function (connect) {
            return [
              lrSnippet,
              mountFolder(connect, '.tmp'),
              mountFolder(connect, 'app')
            ];
          }
        }
      },
      test: {
        options: {
          middleware: function (connect) {
            return [
              mountFolder(connect, '.tmp'),
              mountFolder(connect, 'test')
            ];
          }
        }
      },
      dist: {
        options: {
          middleware: function (connect) {
            return [
              mountFolder(connect, 'dist')
            ];
          }
        }
      }
    },
    open: {
      server: {
        path: 'http://localhost:<%= connect.options.port %>'
      }
    },
    clean: {
      dist: {
        files: [{
          dot: true,
          src: [
            '.tmp',
            '<%= yeoman.dist %>/*',
            '!<%= yeoman.dist %>/.git*'
          ]
        }]
      },
      server: '.tmp',
      components: '<%= yeoman.dist %>/components'
    },
    jshint: {
      options: {
        jshintrc: '.jshintrc'
      },
      all: [
        'Gruntfile.js',
        '<%= yeoman.app %>/scripts/{,*/}*.js',
        '!<%= yeoman.app %>/scripts/vendor/*',
        'test/spec/{,*/}*.js'
      ]
    },
    mocha: {
      all: {
        options: {
          run: true,
          urls: ['http://localhost:<%= connect.options.port %>/index.html']
        }
      }
    },
    recess: {
      dist: {
        options: {
          compile: true
        },
        files: {
          '.tmp/styles/main.css': ['<%= yeoman.app %>/styles/less/main.less']
        }
      }
    },
    swig: {
      dist: {
        init: {
            root: "<%= yeoman.app %>/",
            allowErrors: false,
            autoescape: true
        },
        dest: "<%= yeoman.dist %>/",
        cwd: "<%= yeoman.app %>/",
        src: ['**/*.{swig,twig}']
      },
      server: {
        init: {
            root: "<%= yeoman.app %>/",
            allowErrors: false,
            autoescape: true
        },
        dest: ".tmp/",
        cwd: "<%= yeoman.app %>/",
        src: ['**/*.{swig,twig}']
      }
    },
    rev: {
      dist: {
        files: {
          src: [
            '<%= yeoman.dist %>/scripts/{,*/}*.js',
            '<%= yeoman.dist %>/styles/{,*/}*.css',
            '<%= yeoman.dist %>/images/{,*/}*.{png,jpg,jpeg,gif,webp}',
            '!<%= yeoman.dist %>/fonts/*'
          ]
        }
      }
    },
    useminPrepare: {
      html: '<%= yeoman.dist %>/*.html',
      options: {
        dest: '<%= yeoman.dist %>'
      }
    },
    usemin: {
      html: ['<%= yeoman.dist %>/{,*/}*.html'],
      css: ['<%= yeoman.dist %>/styles/{,*/}*.css'],
      options: {
        dirs: ['<%= yeoman.dist %>']
      }
    },
    imagemin: {
      dist: {
        files: [{
          expand: true,
          cwd: '<%= yeoman.app %>/images',
          src: '{,*/}*.{png,jpg,jpeg}',
          dest: '<%= yeoman.dist %>/images'
        }]
      }
    },
    svgmin: {
      dist: {
        files: [{
          expand: true,
          cwd: '<%= yeoman.app %>/images',
          src: '{,*/}*.svg',
          dest: '<%= yeoman.dist %>/images'
        }]
      }
    },
    cssmin: {
      dist: {
        files: {
          '<%= yeoman.dist %>/styles/main.css': [
            '.tmp/styles/{,*/}*.css',
            '<%= yeoman.app %>/styles/{,*/}*.css'
          ]
        }
      }
    },
    htmlmin: {
      dist: {
        options: {
          /*removeCommentsFromCDATA: true,
          // https://github.com/yeoman/grunt-usemin/issues/44
          //collapseWhitespace: true,
          collapseBooleanAttributes: true,
          removeAttributeQuotes: true,
          removeRedundantAttributes: true,
          useShortDoctype: true,
          removeEmptyAttributes: true,
          removeOptionalTags: true*/
        },
        files: [{
          expand: true,
          cwd: '<%= yeoman.app %>',
          src: '*.html',
          dest: '<%= yeoman.dist %>'
        }]
      }
    },
    copy: {
      dist: {
        files: [
          {
            expand: true,
            dot: true,
            cwd: '<%= yeoman.app %>',
            dest: '<%= yeoman.dist %>',
            src: [
              '*.{ico,txt}',
              'fonts/*',
              '.htaccess',
              'images/{,*/}*.{webp,gif}'
            ]
          },
          {
            expand: true,
            cwd: '.tmp',
            dest: '<%= yeoman.dist %>',
            src: [
              'fonts/*'
            ]
          }
        ]
      },
      server: {
        files: [
          {
            expand: true,
            dot: true,
            cwd: '<%= yeoman.app %>',
            dest: '<%= yeoman.dist %>',
            src: ['components/**']
          },
          {
            expand: true,
            dot: true,
            cwd: '<%= yeoman.app %>/scripts/',
            dest: '<%= yeoman.dist %>/scripts/',
            src: ['*']
          },
          {
            expand: true,
            dot: true,
            cwd: '<%= yeoman.app %>/components/font-awesome/font/',
            dest: '.tmp/fonts/',
            src: ['*']
          },
          {
            expand: true,
            dot: true,
            cwd: '<%= yeoman.app %>/components/bootstrap/fonts/',
            dest: '.tmp/fonts/',
            src: ['*']
          }
        ]
      }
    },
    concurrent: {
      dist: [
        'recess',
        'imagemin',
        'svgmin',
        'htmlmin'
      ]
    }
  });

  grunt.renameTask('regarde', 'watch');

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

    grunt.task.run([
      'clean:server',
      'swig:server',
      'recess',
      'copy:server',
      'livereload-start',
      'connect:livereload',
      'open',
      'watch'
    ]);
  });

  grunt.registerTask('test', [
    'clean:server',
    'recess',
    'copy:server',
    'connect:test',
    'mocha'
  ]);

  grunt.registerTask('build', [
    'clean:dist',
    'swig:dist',
    'copy:server',
    'useminPrepare',
    'concurrent',
    'cssmin',
    'concat',
    'uglify',
    'copy',
    'rev',
    'usemin',
    'clean:components',
  ]);

  grunt.registerTask('default', [
    'jshint',
    'test',
    'build'
  ]);
};

package.json

{
  "name": "project",
  "version": "0.0.0",
  "dependencies": {},
  "devDependencies": {
    "grunt": "~0.4.1",
    "grunt-contrib-copy": "~0.4.1",
    "grunt-contrib-concat": "~0.1.3",
    "grunt-contrib-uglify": "~0.2.0",
    "grunt-contrib-jshint": "~0.4.1",
    "grunt-contrib-cssmin": "~0.6.0",
    "grunt-contrib-connect": "0.2.0",
    "grunt-contrib-clean": "0.4.0",
    "grunt-contrib-htmlmin": "0.1.3",
    "grunt-contrib-imagemin": "0.1.3",
    "grunt-contrib-livereload": "0.1.2",
    "grunt-swig": "~0.0.12",
    "grunt-rev": "~0.1.0",
    "grunt-usemin": "~0.1.10",
    "grunt-regarde": "~0.1.1",
    "grunt-mocha": "~0.3.0",
    "grunt-open": "~0.2.0",
    "grunt-svgmin": "0.1.0",
    "grunt-recess": "~0.3.1",
    "grunt-concurrent": "~0.1.0",
    "matchdep": "~0.1.1"
  },
  "engines": {
    "node": ">=0.8.0"
  }
}