Gruntfile.js

/*!
 * Bootstrap's Gruntfile
 * http://getbootstrap.com
 * Copyright 2013-2015 Twitter, Inc.
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 */

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

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

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

  var fs = require('fs');
  var path = require('path');
  var getLessVarsData = function () {
    var filePath = path.join(__dirname, 'less/variables.less');
    var fileContent = fs.readFileSync(filePath, { encoding: 'utf8' });
    var parser = new BsLessdocParser(fileContent);
    return { sections: parser.parseFile() };
  };
  var generateCommonJSModule = require('./bootstrap/grunt/bs-commonjs-generator.js');
  var configBridge = grunt.file.readJSON('./bootstrap/grunt/configBridge.json', { encoding: 'utf8' });

  Object.keys(configBridge.paths).forEach(function (key) {
    configBridge.paths[key].forEach(function (val, i, arr) {
      arr[i] = path.join('./docs/assets', val);
    });
  });

  // Project configuration.
  grunt.initConfig({

    // Metadata.
    pkg: grunt.file.readJSON('package.json'),
    banner: '/*!\n' +
            ' * Bootstrap v<%= pkg.version %> (<%= pkg.homepage %>)\n' +
            ' * Copyright 2011-<%= grunt.template.today("yyyy") %> <%= pkg.author %>\n' +
            ' * Licensed under <%= pkg.license.type %> (<%= pkg.license.url %>)\n' +
            ' */\n',
    jqueryCheck: configBridge.config.jqueryCheck.join('\n'),
    jqueryVersionCheck: configBridge.config.jqueryVersionCheck.join('\n'),

    // Task configuration.
    clean: {
      dist: 'css',
    },

    concat: {
      bootstrap: {
        src: [
          'bootstrap/js/transition.bootstrap/js',
          'bootstrap/js/alert.bootstrap/js',
          'bootstrap/js/button.bootstrap/js',
          'bootstrap/js/carousel.bootstrap/js',
          'bootstrap/js/collapse.bootstrap/js',
          'bootstrap/js/dropdown.bootstrap/js',
          'bootstrap/js/modal.bootstrap/js',
          'bootstrap/js/tooltip.bootstrap/js',
          'bootstrap/js/popover.bootstrap/js',
          'bootstrap/js/scrollspy.bootstrap/js',
          'bootstrap/js/tab.bootstrap/js',
          'bootstrap/js/affix.bootstrap/js'
        ],
        dest: 'js/<%= pkg.name %>.js'
      }
    },

    uglify: {
      options: {
        preserveComments: 'some'
      },
      core: {
        src: '<%= concat.bootstrap.dest %>',
        dest: 'js/<%= pkg.name %>.min.js'
      },
    },

    less: {
      compileCore: {
        options: {
          strictMath: true,
          sourceMap: true,
          outputSourceFiles: true,
          sourceMapURL: '<%= pkg.name %>.css.map',
          sourceMapFilename: 'css/<%= pkg.name %>.css.map'
        },
        src: 'less/bootstrap.less',
        dest: 'css/<%= pkg.name %>.css'
      },
      compileTheme: {
        options: {
          strictMath: true,
          sourceMap: true,
          outputSourceFiles: true,
          sourceMapURL: '<%= pkg.name %>-theme.css.map',
          sourceMapFilename: 'css/<%= pkg.name %>-theme.css.map'
        },
        src: 'less/theme.less',
        dest: 'css/<%= pkg.name %>-theme.css'
      },
      compileModif: {
        options: {
          strictMath: true,
          sourceMap: false,
          outputSourceFiles: true,
        },
        src: 'less/modifications.less',
        dest: 'css/modifications.css'
      }
    },

    autoprefixer: {
      options: {
        browsers: configBridge.config.autoprefixerBrowsers
      },
      core: {
        options: {
          map: true
        },
        src: 'css/<%= pkg.name %>.css'
      },
      theme: {
        options: {
          map: true
        },
        src: 'css/<%= pkg.name %>-theme.css'
      },
    },

    cssmin: {
      options: {
        compatibility: 'ie8',
        keepSpecialComments: '*',
        advanced: false
      },
      minifyCore: {
        src: 'css/<%= pkg.name %>.css',
        dest: 'css/<%= pkg.name %>.min.css'
      },
      minifyTheme: {
        src: 'css/modifications.css',
        dest: 'css/modifications.min.css'
      },
    },

    copy: {
      fonts: {
        src: 'bootstrap/fonts/*',
        dest: 'fonts/'
      },
    },

    watch: {
      less: {
        files: 'less/**/*.less',
        tasks: 'less'
      }
    },

    exec: {
      npmUpdate: {
        command: 'npm update'
      }
    },

  });


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

  // Docs HTML validation task
  grunt.registerTask('validate-html', ['jekyll:docs', 'validation']);

  var runSubset = function (subset) {
    return !process.env.TWBS_TEST || process.env.TWBS_TEST === subset;
  };
  var isUndefOrNonZero = function (val) {
    return val === undefined || val !== '0';
  };

  grunt.registerTask('test-js', ['jshint:core', 'jshint:test', 'jshint:grunt', 'jscs:core', 'jscs:test', 'jscs:grunt', 'qunit']);

  // JS distribution task.
  grunt.registerTask('dist-js', ['concat', 'uglify:core', 'commonjs']);

  // CSS distribution task.
  grunt.registerTask('less-compile', ['less:compileCore', 'less:compileTheme', 'less:compileModif']);
  grunt.registerTask('dist-css', ['less-compile', 'autoprefixer:core', 'autoprefixer:theme', 'usebanner', 'csscomb:dist', 'cssmin:minifyCore', 'cssmin:minifyTheme']);

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

  // Default task.
  grunt.registerTask('default', ['clean:dist', 'copy:fonts', 'test']);

};