Gruntfile.js

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

  // Force use of Unix newlines
  grunt.util.linefeed = '\n';

  RegExp.quote = function (string) {
    return string.replace(/[-\\^$*+?.()|[\]{}]/g, '\\$&');
  };

  // Project configuration.
  grunt.initConfig({

    // Metadata.
    pkg: grunt.file.readJSON('package.json'),
    banner: '/*!\n' +
            ' * Bootstrap Vertical Navbar v<%= pkg.version %> (<%= pkg.homepage %>)\n' +
            ' * Copyright <%= grunt.template.today("yyyy") %> <%= pkg.author %>\n' +
            ' * Licensed under <%= pkg.license.type %> (<%= pkg.license.url %>)\n' +
            ' */\n',

    // Task configuration.
    clean: {
      dist: ['dist']
    },

    less: {
      compile: {
        options: {
          strictMath: true,
          sourceMap: true,
          outputSourceFiles: true,
          sourceMapURL: '<%= pkg.name %>.css.map',
          sourceMapFilename: 'dist/css/<%= pkg.name %>.css.map',
          paths: [
            'less',
            'bower_components'
          ]
        },
        files: {
          'dist/css/<%= pkg.name %>.css': 'less/_dist.less'
        }
      }
    },

    autoprefixer: {
      options: {
        browsers: [
          'Android 2.3',
          'Android >= 4',
          'Chrome >= 20',
          'Firefox >= 24', // Firefox 24 is the latest ESR
          'Explorer >= 8',
          'iOS >= 6',
          'Opera >= 12',
          'Safari >= 6'
        ]
      },
      core: {
        options: {
          map: true
        },
        src: 'dist/css/<%= pkg.name %>.css'
      }
    },

    csslint: {
      options: {
        csslintrc: 'less/.csslintrc'
      },
      src: [
        'dist/css/<%= pkg.name %>.css'
      ]
    },

    cssmin: {
      options: {
        compatibility: 'ie8',
        keepSpecialComments: '*',
        noAdvanced: true
      },
      core: {
        files: {
          'dist/css/<%= pkg.name %>.min.css': 'dist/css/<%= pkg.name %>.css'
        }
      }
    },

    usebanner: {
      options: {
        position: 'top',
        banner: '<%= banner %>'
      },
      files: {
        src: 'dist/css/*.css'
      }
    },

    csscomb: {
      options: {
        config: 'less/.csscomb.json'
      },
      dist: {
        expand: true,
        cwd: 'dist/css/',
        src: ['*.css', '!*.min.css'],
        dest: 'dist/css/'
      }
    },

    watch: {
      less: {
        options: {
          livereload: true
        },
        files: [
          'less/*.less',
          'bower_components/bootstrap/less/*.less'
        ],
        tasks: ['default']
      }
    }

  });


  // These plugins provide necessary tasks.
  require('load-grunt-tasks')(grunt, { scope: 'devDependencies' });

  // CSS distribution task.
  grunt.registerTask('less-compile', ['less:compile']);
  grunt.registerTask('dist-css', ['less-compile', 'autoprefixer', 'usebanner', 'csscomb', 'cssmin']);

  // Full distribution task.
  grunt.registerTask('dist', ['clean', 'dist-css']);

  // Default task.
  grunt.registerTask('default', ['dist']);

};