text: /*!
   * 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 npmShrinkwrap = require('npm-shrinkwrap');
    var generateGlyphiconsData = require('./grunt/bs-glyphicons-data-generator.js');
    var BsLessdocParser = require('./grunt/bs-lessdoc-parser.js');
    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 generateRawFiles = require('./grunt/bs-raw-files-generator.js');
    var generateCommonJSModule = require('./grunt/bs-commonjs-generator.js');
    var configBridge = grunt.file.readJSON('./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 the <%= pkg.license %> license\n' +
              ' */\n',
      jqueryCheck: configBridge.config.jqueryCheck.join('\n'),
      jqueryVersionCheck: configBridge.config.jqueryVersionCheck.join('\n'),
  
      // Task configuration.
      clean: {
        dist: 'dist',
        docs: 'docs/dist',
        upyun: 'upyun/dist'
      },
  
      jshint: {
        options: {
          jshintrc: 'js/.jshintrc'
        },
        grunt: {
          options: {
            jshintrc: 'grunt/.jshintrc'
          },
          src: ['Gruntfile.js', 'package.js', 'grunt/*.js']
        },
        core: {
          src: 'js/*.js'
        },
        test: {
          options: {
            jshintrc: 'js/tests/unit/.jshintrc'
          },
          src: 'js/tests/unit/*.js'
        },
        assets: {
          src: ['docs/assets/js/src/*.js', 'docs/assets/js/*.js', '!docs/assets/js/*.min.js']
        }
      },
  
      jscs: {
        options: {
          config: 'js/.jscsrc'
        },
        grunt: {
          src: '<%= jshint.grunt.src %>'
        },
        core: {
          src: '<%= jshint.core.src %>'
        },
        test: {
          src: '<%= jshint.test.src %>'
        },
        assets: {
          options: {
            requireCamelCaseOrUpperCaseIdentifiers: null
          },
          src: '<%= jshint.assets.src %>'
        }
      },
  
      concat: {
        options: {
          banner: '<%= banner %>\n<%= jqueryCheck %>\n<%= jqueryVersionCheck %>',
          stripBanners: false
        },
        bootstrap: {
          src: [
            'js/transition.js',
            'js/alert.js',
            'js/button.js',
            'js/carousel.js',
            'js/collapse.js',
            'js/dropdown.js',
            'js/modal.js',
            'js/tooltip.js',
            'js/popover.js',
            'js/scrollspy.js',
            'js/tab.js',
            'js/affix.js',
            'js/variadic-input.js',
            'js/loading.js',
            'js/async-form.js'
          ],
          dest: 'dist/js/<%= pkg.name %>.js'
        },
        upyun: {
          src: [
            'js/variadic-input.js',
            'js/loading.js',
            'js/async-form.js'
          ],
          dest: 'upyun/dist/js/<%= pkg.name %>.upyun.js'
        }
      },
  
      uglify: {
        options: {
          compress: {
            warnings: false
          },
          mangle: true,
          preserveComments: 'some'
        },
        core: {
          src: '<%= concat.bootstrap.dest %>',
          dest: 'dist/js/<%= pkg.name %>.min.js'
        },
        upyun: {
          src: '<%= concat.upyun.dest %>',
          dest: 'upyun/dist/js/<%= pkg.name %>.upyun.min.js'
        },
        customize: {
          src: configBridge.paths.customizerJs,
          dest: 'docs/assets/js/customize.min.js'
        },
        docsJs: {
          src: configBridge.paths.docsJs,
          dest: 'docs/assets/js/docs.min.js'
        }
      },
  
      qunit: {
        options: {
          inject: 'js/tests/unit/phantom.js'
        },
        files: 'js/tests/index.html'
      },
  
      less: {
        compileCore: {
          options: {
            strictMath: true,
            sourceMap: true,
            outputSourceFiles: true,
            sourceMapURL: '<%= pkg.name %>.css.map',
            sourceMapFilename: 'dist/css/<%= pkg.name %>.css.map'
          },
          src: 'less/bootstrap.less',
          dest: 'dist/css/<%= pkg.name %>.css'
        },
        compileTheme: {
          options: {
            strictMath: true,
            sourceMap: true,
            outputSourceFiles: true,
            sourceMapURL: '<%= pkg.name %>-theme.css.map',
            sourceMapFilename: 'dist/css/<%= pkg.name %>-theme.css.map'
          },
          src: 'less/theme.less',
          dest: 'dist/css/<%= pkg.name %>-theme.css'
        },
        compileUpyun: {
          options: {
            strictMath: true,
            sourceMap: true,
            outputSourceFiles: true,
            sourceMapURL: '<%= pkg.name %>.upyun.css.map',
            sourceMapFilename: 'upyun/dist/css/<%= pkg.name %>.upyun.css.map'
          },
          src: 'less/bootstrap.upyun.less',
          dest: 'upyun/dist/css/<%= pkg.name %>.upyun.css'
        }
      },
  
      autoprefixer: {
        options: {
          browsers: configBridge.config.autoprefixerBrowsers
        },
        core: {
          options: {
            map: true
          },
          src: 'dist/css/<%= pkg.name %>.css'
        },
        theme: {
          options: {
            map: true
          },
          src: 'dist/css/<%= pkg.name %>-theme.css'
        },
        docs: {
          src: ['docs/assets/css/src/docs.css']
        },
        examples: {
          expand: true,
          cwd: 'docs/examples/',
          src: ['**/*.css'],
          dest: 'docs/examples/'
        },
        upyun: {
          options: {
            map: true
          },
          src: 'upyun/dist/css/<%= pkg.name %>.upyun.css'
        }
      },
  
      csslint: {
        options: {
          csslintrc: 'less/.csslintrc'
        },
        dist: [
          'dist/css/bootstrap.css',
          'dist/css/bootstrap-theme.css'
        ],
        examples: [
          'docs/examples/**/*.css'
        ],
        docs: {
          options: {
            ids: false,
            'overqualified-elements': false
          },
          src: 'docs/assets/css/src/docs.css'
        }
      },
  
      cssmin: {
        options: {
          // TODO: disable `zeroUnits` optimization once clean-css 3.2 is released
          //    and then simplify the fix for https://github.com/twbs/bootstrap/issues/14837 accordingly
          compatibility: 'ie8',
          keepSpecialComments: '*',
          sourceMap: true,
          advanced: false
        },
        minifyCore: {
          src: 'dist/css/<%= pkg.name %>.css',
          dest: 'dist/css/<%= pkg.name %>.min.css'
        },
        minifyTheme: {
          src: 'dist/css/<%= pkg.name %>-theme.css',
          dest: 'dist/css/<%= pkg.name %>-theme.min.css'
        },
        minifyUpyun: {
          src: 'upyun/dist/css/<%= pkg.name %>.upyun.css',
          dest: 'upyun/dist/css/<%= pkg.name %>.upyun.min.css'
        },
        docs: {
          src: [
            'docs/assets/css/ie10-viewport-bug-workaround.css',
            'docs/assets/css/src/pygments-manni.css',
            'docs/assets/css/src/docs.css'
          ],
          dest: 'docs/assets/css/docs.min.css'
        }
      },
  
      csscomb: {
        options: {
          config: 'less/.csscomb.json'
        },
        dist: {
          expand: true,
          cwd: 'dist/css/',
          src: ['*.css', '!*.min.css'],
          dest: 'dist/css/'
        },
        examples: {
          expand: true,
          cwd: 'docs/examples/',
          src: '**/*.css',
          dest: 'docs/examples/'
        },
        docs: {
          src: 'docs/assets/css/src/docs.css',
          dest: 'docs/assets/css/src/docs.css'
        }
      },
  
      copy: {
        fonts: {
          expand: true,
          src: 'fonts/*',
          dest: 'dist/'
        },
        docs: {
          expand: true,
          cwd: 'dist/',
          src: [
            '**/*'
          ],
          dest: 'docs/dist/'
        }
      },
  
      connect: {
        server: {
          options: {
            port: 3000,
            base: '.'
          }
        }
      },
  
      jekyll: {
        options: {
          config: '_config.yml'
        },
        docs: {},
        github: {
          options: {
            raw: 'github: true'
          }
        }
      },
  
      htmlmin: {
        dist: {
          options: {
            collapseWhitespace: true,
            conservativeCollapse: true,
            minifyCSS: true,
            minifyJS: true,
            removeAttributeQuotes: true,
            removeComments: true
          },
          expand: true,
          cwd: '_gh_pages',
          dest: '_gh_pages',
          src: [
            '**/*.html',
            '!examples/**/*.html'
          ]
        }
      },
  
      jade: {
        options: {
          pretty: true,
          data: getLessVarsData
        },
        customizerVars: {
          src: 'docs/_jade/customizer-variables.jade',
          dest: 'docs/_includes/customizer-variables.html'
        },
        customizerNav: {
          src: 'docs/_jade/customizer-nav.jade',
          dest: 'docs/_includes/nav/customize.html'
        }
      },
  
      htmllint: {
        options: {
          ignore: [
            'Attribute "autocomplete" not allowed on element "button" at this point.',
            'Attribute "autocomplete" is only allowed when the input type is "color", "date", "datetime", "datetime-local", "email", "month", "number", "password", "range", "search", "tel", "text", "time", "url", or "week".',
            'Element "img" is missing required attribute "src".'
          ]
        },
        src: '_gh_pages/**/*.html'
      },
  
      watch: {
        src: {
          files: '<%= jshint.core.src %>',
          tasks: ['jshint:core', 'qunit', 'concat']
        },
        test: {
          files: '<%= jshint.test.src %>',
          tasks: ['jshint:test', 'qunit']
        },
        less: {
          files: 'less/**/*.less',
          tasks: 'less'
        }
      },
  
      sed: {
        versionNumber: {
          pattern: (function () {
            var old = grunt.option('oldver');
            return old ? RegExp.quote(old) : old;
          })(),
          replacement: grunt.option('newver'),
          exclude: [
            'dist/fonts',
            'docs/assets',
            'fonts',
            'js/tests/vendor',
            'node_modules',
            'test-infra'
          ],
          recursive: true
        }
      },
  
      'saucelabs-qunit': {
        all: {
          options: {
            build: process.env.TRAVIS_JOB_ID,
            throttled: 10,
            maxRetries: 3,
            maxPollRetries: 4,
            urls: ['http://127.0.0.1:3000/js/tests/index.html?hidepassed'],
            browsers: grunt.file.readYAML('grunt/sauce_browsers.yml')
          }
        }
      },
  
      exec: {
        npmUpdate: {
          command: 'npm update'
        }
      },
  
      compress: {
        main: {
          options: {
            archive: 'bootstrap-<%= pkg.version %>-dist.zip',
            mode: 'zip',
            level: 9,
            pretty: true
          },
          files: [
            {
              expand: true,
              cwd: 'dist/',
              src: ['**'],
              dest: 'bootstrap-<%= pkg.version %>-dist'
            }
          ]
        }
      }
  
    });
  
  
    // 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', 'htmllint']);
  
    var runSubset = function (subset) {
      return !process.env.TWBS_TEST || process.env.TWBS_TEST === subset;
    };
    var isUndefOrNonZero = function (val) {
      return val === undefined || val !== '0';
    };
  
    // Test task.
    var testSubtasks = [];
    // Skip core tests if running a different subset of the test suite
    if (runSubset('core') &&
        // Skip core tests if this is a Savage build
        process.env.TRAVIS_REPO_SLUG !== 'twbs-savage/bootstrap') {
      testSubtasks = testSubtasks.concat(['dist-css', 'dist-js', 'csslint:dist', 'test-js', 'docs']);
    }
    // Skip HTML validation if running a different subset of the test suite
    if (runSubset('validate-html') &&
        // Skip HTML5 validator on Travis when [skip validator] is in the commit message
        isUndefOrNonZero(process.env.TWBS_DO_VALIDATOR)) {
      testSubtasks.push('validate-html');
    }
    // Only run Sauce Labs tests if there's a Sauce access key
    if (typeof process.env.SAUCE_ACCESS_KEY !== 'undefined' &&
        // Skip Sauce if running a different subset of the test suite
        runSubset('sauce-js-unit') &&
        // Skip Sauce on Travis when [skip sauce] is in the commit message
        isUndefOrNonZero(process.env.TWBS_DO_SAUCE)) {
      testSubtasks.push('connect');
      testSubtasks.push('saucelabs-qunit');
    }
    grunt.registerTask('test', testSubtasks);
    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:bootstrap', 'uglify:core', 'commonjs']);
    grunt.registerTask('dist-upyun-js', ['concat:upyun', 'uglify:upyun']);
  
    // CSS distribution task.
    grunt.registerTask('less-compile', ['less:compileCore', 'less:compileTheme']);
    grunt.registerTask('dist-css', ['less-compile', 'autoprefixer:core', 'autoprefixer:theme', 'csscomb:dist', 'cssmin:minifyCore', 'cssmin:minifyTheme']);
    grunt.registerTask('dist-upyun-css', ['less:compileUpyun', 'autoprefixer:upyun', 'cssmin:minifyUpyun']);
  
    // Full distribution task.
    grunt.registerTask('dist', ['clean:dist', 'dist-css', 'copy:fonts', 'dist-js']);
  
    // Full distribution task for upyun.
    grunt.registerTask('dist-upyun', ['clean:upyun', 'dist-upyun-css', 'dist-upyun-js']);
  
    // Default task.
    grunt.registerTask('default', ['clean:dist', 'copy:fonts', 'test']);
  
    // Version numbering task.
    // grunt change-version-number --oldver=A.B.C --newver=X.Y.Z
    // This can be overzealous, so its changes should always be manually reviewed!
    grunt.registerTask('change-version-number', 'sed');
  
    grunt.registerTask('build-glyphicons-data', function () { generateGlyphiconsData.call(this, grunt); });
  
    // task for building customizer
    grunt.registerTask('build-customizer', ['build-customizer-html', 'build-raw-files']);
    grunt.registerTask('build-customizer-html', 'jade');
    grunt.registerTask('build-raw-files', 'Add scripts/less files to customizer.', function () {
      var banner = grunt.template.process('<%= banner %>');
      generateRawFiles(grunt, banner);
    });
  
    grunt.registerTask('commonjs', 'Generate CommonJS entrypoint module in dist dir.', function () {
      var srcFiles = grunt.config.get('concat.bootstrap.src');
      var destFilepath = 'dist/js/npm.js';
      generateCommonJSModule(grunt, srcFiles, destFilepath);
    });
  
    // Docs task.
    grunt.registerTask('docs-css', ['autoprefixer:docs', 'autoprefixer:examples', 'csscomb:docs', 'csscomb:examples', 'cssmin:docs']);
    grunt.registerTask('lint-docs-css', ['csslint:docs', 'csslint:examples']);
    grunt.registerTask('docs-js', ['uglify:docsJs', 'uglify:customize']);
    grunt.registerTask('lint-docs-js', ['jshint:assets', 'jscs:assets']);
    grunt.registerTask('docs', ['docs-css', 'lint-docs-css', 'docs-js', 'lint-docs-js', 'clean:docs', 'copy:docs', 'build-glyphicons-data', 'build-customizer']);
  
    grunt.registerTask('prep-release', ['dist', 'docs', 'jekyll:github', 'htmlmin', 'compress']);
  
    // Task for updating the cached npm packages used by the Travis build (which are controlled by test-infra/npm-shrinkwrap.json).
    // This task should be run and the updated file should be committed whenever Bootstrap's dependencies change.
    grunt.registerTask('update-shrinkwrap', ['exec:npmUpdate', '_update-shrinkwrap']);
    grunt.registerTask('_update-shrinkwrap', function () {
      var done = this.async();
      npmShrinkwrap({ dev: true, dirname: __dirname }, function (err) {
        if (err) {
          grunt.fail.warn(err);
        }
        var dest = 'test-infra/npm-shrinkwrap.json';
        fs.renameSync('npm-shrinkwrap.json', dest);
        grunt.log.writeln('File ' + dest.cyan + ' updated.');
        done();
      });
    });
  };
  