gruntjs - 启用了 sourceMap 选项的 Uglify 与它应该引用的 filerev js 文件不匹配

Question

你好，

我只是启用sourceMap grunt-contrib-uglify 模块的选项为我的 concat-jshint-minified-filerev javascript 文件生成映射文件。

在 dist我可以看到的目录:

分布/

vendor.6ff9fbf4.js

vendor.6ff9fbf4.js.map

但如果我编辑 vendor.6ff9fbf4.js ，我可以在文件末尾看到引用的 sourceMap 是错误的

/* much, much, much minified code here */
//# sourceMappingURL=vendor.js.map

如果我打开 vendor.6ff9fbf4.js.map我可以在第一行看到引用源文件也是错误的。

{"version":3,
 "file":"vendor.js",
 "sources":["../../.tmp/concat/scripts/vendor.js"]
 /* much, much, much more things here */
}

显然， grunt-filerev 之后的文件没有被重命名。任务。

关于如何做到这一点的任何建议？

配置: Gruntfile.js

// Generated on 2014-06-19 using generator-angular 0.9.0-1
'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) {

  grunt.loadNpmTasks('grunt-ng-annotate');

  // Load grunt tasks automatically
  require('load-grunt-tasks')(grunt);

  // Time how long tasks take. Can help when optimizing build times
  require('time-grunt')(grunt);

  // Configurable paths for the application
  var appConfig = {
    app: require('./bower.json').appPath || 'app',
    dist: 'dist'
  };

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

    // Project settings
    yeoman: appConfig,

    // Watches files for changes and runs tasks based on the changed files
    watch: {
      bower: {
        files: ['bower.json'],
        tasks: ['wiredep']
      },
      js: {
        files: ['<%= yeoman.app %>/scripts/{,*/**/}*.js'],
        tasks: ['newer:jshint:all'],
        options: {
          livereload: '<%= connect.options.livereload %>'
        }
      },
      jsTest: {
        files: ['test/spec/{,*/**/}*.js'],
        tasks: ['newer:jshint:test', 'karma']
      },
      styles: {
        files: ['<%= yeoman.app %>/styles/{,*/**/}*.css'],
        tasks: ['newer:copy:styles', 'autoprefixer']
      },
      gruntfile: {
        files: ['Gruntfile.js']
      },
      livereload: {
        options: {
          livereload: '<%= connect.options.livereload %>'
        },
        files: [
          '<%= yeoman.app %>/{,*/**/}*.html',
          '.tmp/styles/{,*/**/}*.css',
          '<%= yeoman.app %>/images/{,*/**/}*.{png,jpg,jpeg,gif,webp,svg}'
        ]
      }
    },

    // The actual grunt server settings
    connect: {
      options: {
        port: 9000,
        // Change this to '0.0.0.0' to access the server from outside.
        hostname: '0.0.0.0',
        livereload: 35729
      },
      livereload: {
        options: {
          open: true,
          middleware: function (connect) {
            return [
              connect.static('.tmp'),
              connect().use(
                '/bower_components',
                connect.static('./bower_components')
              ),
              connect.static(appConfig.app)
            ];
          }
        }
      },
      test: {
        options: {
          port: 9001,
          middleware: function (connect) {
            return [
              connect.static('.tmp'),
              connect.static('test'),
              connect().use(
                '/bower_components',
                connect.static('./bower_components')
              ),
              connect.static(appConfig.app)
            ];
          }
        }
      },
      dist: {
        options: {
          open: true,
          base: '<%= yeoman.dist %>'
        }
      }
    },

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

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

    // 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 app
    wiredep: {
      app: {
        src: ['<%= yeoman.app %>/index.html'],
        ignorePath: new RegExp('^<%= yeoman.app %>/|../')
      }
    },

    // Renames files for browser caching purposes
    filerev: {
      dist: {
        src: [
          '<%= yeoman.dist %>/scripts/{,*/**/}*.js',
          '<%= yeoman.dist %>/styles/{,*/**/}*.css',
          '<%= yeoman.dist %>/images/{,*/**/}*.{png,jpg,jpeg,gif,webp,svg}',
          '<%= yeoman.dist %>/styles/fonts/*'
        ]
      }
    },

    // 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: {
      html: '<%= yeoman.app %>/index.html',
      options: {
        dest: '<%= yeoman.dist %>',
        flow: {
          html: {
            steps: {
              js: ['concat', 'uglifyjs'],
              css: ['cssmin']
            },
            post: {}
          }
        }
      }
    },

    // Performs rewrites based on filerev and the useminPrepare configuration
      //html: ['<%= yeoman.dist %>/{,*/**/}*.html'],
    usemin: {
      html: ['<%= yeoman.dist %>/**/*.html'],
      css: ['<%= yeoman.dist %>/styles/{,*/**/}*.css'],
      options: {
        assetsDirs: ['<%= yeoman.dist %>','<%= yeoman.dist %>/images']
      }
    },

    // The following *-min tasks will produce minified files in the dist folder
    // 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: {
    //       '<%= yeoman.dist %>/styles/main.css': [
    //         '.tmp/styles/{,*/}*.css'
    //       ]
    //     }
    //   }
    // },
    // uglify: {
    //   dist: {
    //     files: {
    //       '<%= yeoman.dist %>/scripts/scripts.js': [
    //         '<%= yeoman.dist %>/scripts/scripts.js'
    //       ]
    //     }
    //   }
    // },
    // concat: {
    //   dist: {}
    // },

    imagemin: {
      dist: {
        files: [{
          expand: true,
          cwd: '<%= yeoman.app %>/images',
          src: '{,*/}*.{png,jpg,jpeg,gif}',
          dest: '<%= yeoman.dist %>/images'
        }]
      }
    },

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

    htmlmin: {
      dist: {
        options: {
          collapseWhitespace: true,
          conservativeCollapse: true,
          collapseBooleanAttributes: true,
          removeCommentsFromCDATA: true,
          removeOptionalTags: true
        },
        //  src: ['*.html', 'views/{,*/**/}*.html'],
        files: [{
          expand: true,
          cwd: '<%= yeoman.dist %>',
          src: ['*.html', 'views/**/*.html'],
          dest: '<%= yeoman.dist %>'
        }]
      }
    },

    // ngAnnotate tries to make the code safe for minification automatically by
    // using the Angular long form for dependency injection. It doesn't work on
    // things like resolve or inject so those have to be done manually.
    ngAnnotate: {
      dist: {
        files: [{
          expand: true,
          cwd: '.tmp/concat/scripts',
          src: '*.js',
          dest: '.tmp/concat/scripts'
        }]
      }
    },

    // Replace Google CDN references
    cdnify: {
      dist: {
        html: ['<%= yeoman.dist %>/*.html']
      }
    },

    // Copies remaining files to places other tasks can use
    copy: {
      dist: {
        files: [{
          expand: true,
          dot: true,
          cwd: '<%= yeoman.app %>',
          dest: '<%= yeoman.dist %>',
            //'views/{,*/}*.html',
          src: [
            '*.{ico,png,txt}',
            '.htaccess',
            '*.html',
            'views/**/*.html',
            'images/{,*/}*.{webp}',
            'fonts/*'
          ]
        }, {
          expand: true,
          cwd: '.tmp/images',
          dest: '<%= yeoman.dist %>/images',
          src: ['generated/*']
        }]
      },
      styles: {
        expand: true,
        cwd: '<%= yeoman.app %>/styles',
        dest: '.tmp/styles/',
        src: '{,*/}*.css'
      }
    },

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

    // Test settings
    karma: {
      unit: {
        configFile: 'test/karma.conf.js',
        singleRun: true
      }
    } ,

    uglify: {
      options : {
        sourceMap : true,
        compress : true,
        mangle : true
      }
    }
  });


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

    grunt.task.run([
      'clean:server',
      'wiredep',
      'concurrent:server',
      'autoprefixer',
      'connect:livereload',
      'watch'
    ]);
  });

  grunt.registerTask('server', 'DEPRECATED TASK. Use the "serve" task instead', function (target) {
    grunt.log.warn('The `server` task has been deprecated. Use `grunt serve` to start a server.');
    grunt.task.run(['serve:' + target]);
  });

  grunt.registerTask('test', [
    'clean:server',
    'concurrent:test',
    'autoprefixer',
    'connect:test',
    'karma'
  ]);

  grunt.registerTask('build', [
    'clean:dist',
    'wiredep',
    'useminPrepare',
    'concurrent:dist',
    'autoprefixer',
    'concat',
    'ngAnnotate',
    'copy:dist',
    'cdnify',
    'cssmin',
    'uglify',
    'filerev',
    'usemin',
    'htmlmin'
  ]);

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

Answer 1

最近遇到了这个问题(实际上是一组问题)。这是我解决它的方法。

首先必须更新 grunt 插件依赖项:

"grunt-filerev": "^2.3.*"
"grunt-contrib-uglify": "^0.9.*",

第一个是因为最新的 filerev 还将源映射名称更改为已修改的名称(匹配 .js)，第二个是因为我使用的版本甚至没有 sourceMap bool 选项。

但这还不够。您必须在 dist 文件夹上进行“丑化”。使用您的设置

useminPrepare: {
  html: '<%= yeoman.app %>/index.html',
  options: {
    dest: '<%= yeoman.dist %>',
    flow: {
      html: {
        steps: {
          js: ['concat', 'uglifyjs'],
          css: ['cssmin']
        },
        post: {}
      }
    }
  }
},

您正在 concat 文件夹中制作它，并且 uglify 任务正在解析到 的相对路径“来源”:[“../../.tmp/concat/scripts/vendor.js”] .

所以从 js 步骤数组中删除“uglifyjs”。

        steps: {
          js: ['concat'],
          css: ['cssmin']
        },

我们现在需要指出丑化的位置，这样:

uglify: {
  options : {
    sourceMap : true,
    compress : true,
    mangle : true
  },
  all: {
      files: [{
          expand: true,
          cwd: '<%= yeoman.dist %>/scripts',
          src: [
                '*.js',
                '!*<%= yeoman.beforeUglifyMarker %>.js'
               ],
          dest: '<%= yeoman.dist %>/scripts',
          ext: '.js'
      }]
  }

}

您会注意到 <%= yeoman.beforeUglifyMarker %>。您应该在 appConfig 对象中创建 beforeUglifyMarker 属性，我们将使用该属性从 uglification 中排除非 uglified 原始文件，使它们在与源映射相同的路径中可用。

所以在 uglify 任务运行之前，我们将复制将要被 uglify 的文件，用 yeoman.beforeUglifyMarker 的值重命名它们(这样我们就可以保持原始文件与源映射匹配)。

在您的复制任务中创建 2 个目标:

        savePrettyVersion: {
            expand: true,
            cwd: '<%= yeoman.dist %>/scripts',
            dest: '<%= yeoman.dist %>/scripts',
            src: '*.js',
            rename: function(dest, src){
                var name = src.split('.')[0];
                return dest + '/' + name + appConfig.beforeUglifyMarker + '.js';
            }
        },
        restorePrettyVersion: {
            expand: true,
            cwd: '<%= yeoman.dist %>/scripts',
            dest: '<%= yeoman.dist %>/scripts',
            src: '*<%= yeoman.beforeUglifyMarker %>.js',
            rename: function(dest, src){
                var originalParts = src.split(appConfig.beforeUglifyMarker);
                return dest + '/' + originalParts.join('');
            }
        },

在您的构建任务中使用它们，如下所示:

        'copy:savePrettyVersion',
        'uglify',
        'filerev',
        'usemin',
        'htmlmin',
        'copy:restorePrettyVersion',
        'clean:nonUglyTempFiles',

最后一个是可选的，只是清理临时文件。

然后确保从 filerev uglify 和使用否定模式或正则表达式的 usemin 任务中排除临时文件(用 beforeUglifyMarker 标记)。

usemin: {
  html: ['<%= yeoman.dist %>/**/*.html'],
  css: ['<%= yeoman.dist %>/styles/{,*/**/}*.css'],
  js: [
        '<%= yeoman.dist %>/scripts/{,*/}*.js',
        '!<%= yeoman.dist %>/scripts/*<%= yeoman.beforeUglifyMarker %>.js',
  ],

  options: {
    assetsDirs: ['<%= yeoman.dist %>','<%= yeoman.dist %>/images']
  }
},
filerev: {
  dist: {
    src: [
      '<%= yeoman.dist %>/scripts/{,*/**/}*.js',
      '!<%= yeoman.dist %>/scripts/*<%= yeoman.beforeUglifyMarker %>.js',

      '<%= yeoman.dist %>/styles/{,*/**/}*.css',
      '<%= yeoman.dist %>/images/{,*/**/}*.{png,jpg,jpeg,gif,webp,svg}',
      '<%= yeoman.dist %>/styles/fonts/*'
    ]
  }
},

这是一个 hacky 解决方法，它可以工作，但以后应该避免使用， look/watch this issue on usemin .同时我希望它有帮助。