Javascript 优化咕噜声

我正在使用grunt将重复出现的元素（页脚、菜单栏…）合并到使用bake的简单网站页面中

在我的根目录中，我调用

grunt--force

该过程需要花费大量时间：

mocha:all 11.1s
concurrent:dist 400.1s
Total 414.5s

问题：如何优化流程并节省时间

GrunFile.js如下所示：

'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);

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

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

        bake: {
            build: {
                options: {
                    basePath: 'appPreBake'
                },
                files: {
                    // Files that use templates should live in appPreBake.
                    // Add new files to the list below so that they will be
                    // added to the app/ folder, where they are served for the
                    // test server. When built they are compiled and put in the
                    // dist folder.
                    //
                    // grunt-bake adopts the formula:
                    // outputFile: templateFile
                    '<%= config.app %>/index.html': '<%= config.prebake %>/index.html',
                    '<%= config.app %>/first/index.html': '<%= config.prebake %>/first/index.html',
                    '<%= config.app %>/second/index.html': '<%= config.prebake %>/second/index.html',
                    '<%= config.app %>/third/index.html': '<%= config.prebake %>/third/index.html',
                    '<%= config.app %>/photos/index.html': '<%= config.prebake %>/photos/index.html',
                    '<%= config.app %>/about/index.html': '<%= config.prebake %>/about/index.html',
                    '<%= config.app %>blog.html': '<%= config.prebake %>blog.html'
                }
            }
        },

        // Watches files for changes and runs tasks based on the changed files
        watch: {
            // We want to rerun bake every time we change a template file in
            // the prebake directory.
            bake: {
                files: ['appPreBake/**'],
                tasks: 'bake:build'
            },
            bower: {
                files: ['bower.json'],
                tasks: ['bowerInstall']
            },
            js: {
                files: ['<%= config.app %>/scripts/{,*/}*.js'],
                tasks: ['jshint'],
                options: {
                    livereload: true
                }
            },
            jstest: {
                files: ['test/spec/{,*/}*.js'],
                tasks: ['test:watch']
            },
            gruntfile: {
                files: ['Gruntfile.js']
            },
            styles: {
                files: ['<%= config.app %>/styles/{,*/}*.css'],
                tasks: ['newer:copy:styles', 'autoprefixer']
            },
            livereload: {
                options: {
                    livereload: '<%= connect.options.livereload %>'
                },
                files: [
                    '<%= config.app %>/{,*/}*.html',
                    '.tmp/styles/{,*/}*.css',
                    '<%= config.app %>/images/{,*/}*'
                ]
            }
        },

        // The actual grunt server settings
        connect: {
            options: {
                port: 9000,
                livereload: 35729,
                // Change this to '0.0.0.0' to access the server from outside
                hostname: 'localhost'
            },
            livereload: {
                options: {
                    open: true,
                    base: [
                        '.tmp',
                        '<%= config.app %>'
                    ]
                }
            },
            test: {
                options: {
                    port: 9001,
                    base: [
                        '.tmp',
                        'test',
                        '<%= config.app %>'
                    ]
                }
            },
            dist: {
                options: {
                    open: true,
                    base: '<%= config.dist %>',
                    livereload: false
                }
            }
        },

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

        // Make sure code styles are up to par and there are no obvious mistakes
        jshint: {
            options: {
                jshintrc: '.jshintrc',
                reporter: require('jshint-stylish')
            },
            all: [
                'Gruntfile.js',
                '<%= config.app %>/scripts/{,*/}*.js',
                '!<%= config.app %>/scripts/vendor/*',
                'test/spec/{,*/}*.js'
            ]
        },

        // Mocha testing framework configuration options
        mocha: {
            all: {
                options: {
                    run: true,
                    urls: ['http://<%= connect.test.options.hostname %>:<%= connect.test.options.port %>/index.html']
                }
            }
        },

        // Add vendor prefixed styles
        autoprefixer: {
            options: {
                browsers: ['last 1 version']
            },
            dist: {
                files: [{
                    expand: true,
                    cwd: '.tmp/styles/',
                    src: '{,*/}*.css',
                    dest: '.tmp/styles/'
                }]
            }
        },

        // Automatically inject Bower components into the HTML file
        bowerInstall: {
            app: {
                src: ['<%= config.app %>/index.html'],
                ignorePath: '<%= config.app %>/'
            }
        },

        // Renames files for browser caching purposes
        rev: {
            dist: {
                files: {
                    src: [
                        '<%= config.dist %>/scripts/{,*/}*.js',
                        '<%= config.dist %>/styles/{,*/}*.css',
                        '<%= config.dist %>/images/{,*/}*.*',
                        '<%= config.dist %>/styles/fonts/{,*/}*.*',
                        '<%= config.dist %>/*.{ico,png}'
                    ]
                }
            }
        },

        // 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 %>'
            },
            html: '<%= config.app %>/index.html'
        },

        // Performs rewrites based on rev and the 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: {
            // There are several issues with this task in version 0.5.x. If you
            // are encountering problems where it hangs, claims to not find
            // files, or progresses on subsequent runs but emitting images of
            // size 0, uncomment this options object. It will stop caching and
            // this should fix the problem, although it will take longer.
            // For a more thorough discussion, see the following links:
            // https://github.com/gruntjs/grunt-contrib-imagemin/issues/140
            // http://stackoverflow.com/questions/21175673/grunt-contrib-imagemin-output-fatal-error-enoent-no-such-file-or-directory
            //options: {
            //    cache: false
            //},
            dist: {
                files: [{
                    expand: true,
                    cwd: '<%= config.app %>/images',
                    src: '{,*/}*.{gif,jpeg,jpg,png}',
                    dest: '<%= config.dist %>/images'
                }]
            }
        },

        svgmin: {
            dist: {
                files: [{
                    expand: true,
                    cwd: '<%= config.app %>/images',
                    src: '{,*/}*.svg',
                    dest: '<%= config.dist %>/images'
                }]
            }
        },

        htmlmin: {
            dist: {
                options: {
                    collapseBooleanAttributes: true,
                    collapseWhitespace: true,
                    removeAttributeQuotes: true,
                    removeCommentsFromCDATA: true,
                    removeEmptyAttributes: true,
                    removeOptionalTags: true,
                    removeRedundantAttributes: true,
                    useShortDoctype: true
                },
                files: [{
                    expand: true,
                    cwd: '<%= config.dist %>',
                    src: '{,*/}*.html',
                    dest: '<%= config.dist %>'
                }]
            }
        },

        // By default, your `index.html`'s <!-- Usemin block --> will take care of
        // minification. These next options are pre-configured if you do not wish
        // to use the Usemin blocks.
        // cssmin: {
        //     dist: {
        //         files: {
        //             '<%= config.dist %>/styles/main.css': [
        //                 '.tmp/styles/{,*/}*.css',
        //                 '<%= config.app %>/styles/{,*/}*.css'
        //             ]
        //         }
        //     }
        // },
        // uglify: {
        //     dist: {
        //         files: {
        //             '<%= config.dist %>/scripts/scripts.js': [
        //                 '<%= config.dist %>/scripts/scripts.js'
        //             ]
        //         }
        //     }
        // },
        // concat: {
        //     dist: {}
        // },

        // 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}',
                        '.htaccess',
                        'images/{,*/}*.webp',
                        '{,*/}*.html',
                        'styles/fonts/{,*/}*.*',
                        'bower_components/bootstrap/dist/fonts/*.*'
                    ]
                }, {
                    // Have to manually add this copying to ensure that the
                    // glyphicons make it over.
                    // This solution comes from:
                    // http://stackoverflow.com/questions/18572941/why-does-yeoman-build-without-glyphicons
                    expand: true,
                    cwd: '<%= config.app %>/bower_components/bootstrap/dist/fonts',
                    dest: '<%= config.dist %>/fonts',
                    src: '*.*'
                }]
            },
            styles: {
                expand: true,
                dot: true,
                cwd: '<%= config.app %>/styles',
                dest: '.tmp/styles/',
                src: '{,*/}*.css'
            }
        },

        // Run some tasks in parallel to speed up build process
        concurrent: {
            server: [
                'copy:styles'
            ],
            test: [
                'copy:styles'
            ],
            dist: [
                'copy:styles',
                'imagemin',
                'svgmin'
            ]
        }
    });

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

        grunt.task.run([
            'clean:server',
            'concurrent:server',
            'autoprefixer',
            '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', function (target) {
        if (target !== 'watch') {
            grunt.task.run([
                'clean:server',
                'concurrent:test',
                'autoprefixer'
            ]);
        }

        grunt.task.run([
            'connect:test',
            'mocha'
        ]);
    });

    grunt.registerTask('build', [
        'clean:dist',
        'bake',
        'useminPrepare',
        'concurrent:dist',
        'autoprefixer',
        'concat',
        'cssmin',
        'uglify',
        'copy:dist',
        'rev',
        'usemin',
        'htmlmin'
    ]);

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

“严格使用”；
//#全球化
//出于性能原因，我们只降低了一个级别：
//'test/spec/{，*/}*.js'
//如果要递归匹配所有子文件夹，请使用此选项：
//“test/spec/***.js”
module.exports=函数（grunt）{
//自动加载grunt任务
要求（'load-grunt-tasks'）（grunt）；
//任务所需的时间。可以帮助优化构建时间
要求（“时间咕噜”）（咕噜）；
//定义所有任务的配置
grunt.initConfig({
//项目设置
配置：{
//可配置路径
应用程序：“应用程序”，
地区：'地区/公共'，
预烘焙：“应用预烘焙”
},
烘焙：{
建造：{
选项：{
基本路径：“appPreBake”
},
档案：{
//使用模板的文件应位于appPreBake中。
//将新文件添加到下面的列表中，以便
//已添加到应用程序/文件夹中，用于
//测试服务器。当构建它们时，它们被编译并放入
//dist文件夹。
//
//grunt bake采用以下公式：
//outputFile:templateFile
“/index.html”：“/index.html”，
“/first/index.html”：“/first/index.html”，
“/second/index.html”：“/second/index.html”，
“/third/index.html”：“/third/index.html”，
“/photos/index.html”：“/photos/index.html”，
“/about/index.html”：“/about/index.html”，
'blog.html'：'blog.html'
}
}
},
//监视文件的更改，并基于更改的文件运行任务
观察：{
//我们希望在每次更改中的模板文件时重新运行烘焙
//预烘焙目录。
烘焙：{
文件：['appPreBake/**']，
任务：“烘焙：生成”
},
鲍尔：{
文件：['bower.json']，
任务：['bowerInstall']
},
js:{
文件：['/scripts/{，*/}*.js']，
任务：['jshint']，
选项：{
利弗雷罗德：没错
}
},
jstest：{
文件：['test/spec/{，*/}*.js']，
任务：[“测试：监视”]
},
Grunfile：{
文件：['grunfile.js']
},
风格：{
文件：['/styles/{，*/}*.css']，
任务：[“更新的：复制：样式”，“自动引用器”]
},
利弗雷罗德：{
选项：{
livereload:'
},
档案：[
'/{，*/}*.html'，
“.tmp/styles/{，*/}*.css”，
“/images/{，*/}*”
]
}
},
//实际的grunt服务器设置
连接：{
选项：{
港口：9000，
利弗雷罗德：35729，
//将此更改为“0.0.0.0”以从外部访问服务器
主机名：“localhost”
},
利弗雷罗德：{
选项：{
开放：是的，
基数：[
“.tmp”，
''
]
}
},
测试：{
选项：{
港口：9001，
基数：[
“.tmp”，
"测试",，
''
]
}
},
地区：{
选项：{
开放：是的，
基：“”，
利弗雷罗德：错
}
}
},
//清空文件夹以重新开始
清洁：{
地区：{
档案：[{
多特：没错，
src:[
“.tmp”，
'/*',
“！/.git*”
]
}]
},
服务器：'.tmp'
},
/确保代码风格达到标准，没有明显的错误。
jshint:{
选项：{
jshintrc:“.jshintrc”，
记者：require（'jshint-style'）
},
全部：[
“Gruntfile.js”，
“/scripts/{，*/}*.js”，
“！/scripts/vendor/*”，
'test/spec/{，*/}*.js'
]
},
//Mocha测试框架配置选项
摩卡咖啡：{
全部：{
选项：{
run：是的，
URL:['http://:/index.html']
}
}
},
//添加供应商前缀样式
自动刷新器：{
选项：{
浏览器：[“上一版本”]
},
地区：{
档案：[{
是的，
cwd:“.tmp/styles/”，
src:'{，*/}*.css',，
目标：'.tmp/styles/'
}]
}
},
//自动将Bower组件注入HTML文件
鲍林斯泰尔：{
应用程序：{
src:['/index.html']，
忽略路径：'/'
}
},
//重命名用于浏览器缓存的文件purpo
grunt -v