concurrency - Centos 7 : Running "Grunt Serve" (concurrent) task 上的 Ionic "concurrent:server"错误

Question

我有一个使用 Grunt 的 Ionic 项目，它是由 Yeoman 构建的。我设法将其配置为在运行 Fedora 22 的本地计算机上正常工作。

目前，我正在尝试在 Centos 7 服务器实例上配置它，并且我在本地安装了所有依赖项，但是当我运行“grunt serve”时，出现以下错误:

Running "concurrent:server" (concurrent) task

Warning: FATAL ERROR: Evacuation Allocation failed - process out of memory Use --force to continue.
Aborted due to warnings.

我仍处于学习阶段，对上述技术经验不多，但目前我设法在本地使用它。

当我在我的终端“grunt serve --force”中运行时，应用程序正在运行，但它编译得不好，因为一些 css 有点乱，它显示以下警告:

Running "concurrent:server" (concurrent) task

Warning: FATAL ERROR: Evacuation Allocation failed - process out of memory Used --force, continuing.

Warning: FATAL ERROR: Evacuation Allocation failed - process out of memory Used --force, continuing.

我不认为内存在这里是个问题，因为服务器是专门为 UI 实例化的，其他一切都在其他服务器上，当我运行“free”时，它表明我有足够的可用空间:

总计 1015944 使用 169712 免费 780212
共享 13036增益/缓存 66020可用 742956

交换:0 0 0

这是我的 Gruntfile.js 的内容:

// Generated on 2015-02-06 using generator-angular 0.11.0
'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);

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

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

    // Project settings
    yeoman: appConfig,

    // Ng constants - used for environment based configs
    ngconstant: {
      options: {
        name: 'config',
        wrap: '"use strict";\n\n{%= __ngModule %}',
        space: '  '
      },
      local: {
        options: {
          dest: '<%= yeoman.app %>/scripts/config.js',
        },
        constants: {
          ENV: 'local',
          CONFIG: grunt.file.exists('config/local.config.json') ?
                grunt.file.readJSON('config/local.config.json') :
                grunt.file.readJSON('config/default.config.json')
        }
      },
      dev: {
        options: {
          dest: '<%= yeoman.app %>/scripts/config.js',
        },
        constants: {
          ENV: 'dev',
          CONFIG: grunt.file.readJSON('config/dev.config.json')
        }
      }
    },

    // 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', '<%= yeoman.app %>/scripts/{,*/}/{,*/}*.js'],
        tasks: ['newer:jshint:all'],
        options: {
          livereload: '<%= connect.options.livereload %>'
        }
      },
      html: {
        files: ['<%= yeoman.app %>/views/{,*/}*.html', '<%= yeoman.app %>/*.html'],
        tasks: [],
        options: {
          livereload: '<%= connect.options.livereload %>'
        }
      },
      jsTest: {
        files: ['test/spec/{,*/}*.js'],
        tasks: ['newer:jshint:test', 'karma']
      },
      compass: {
        files: ['<%= yeoman.app %>/styles/{,*/}*.{scss,sass}'],
        tasks: ['compass:server', 'autoprefixer']
      },
      ionic: {
        files: ['<%= yeoman.app %>/ionic/scss/{,*/}*.{scss,sass}'],
        tasks: ['compass:ionic', '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: 'localhost',
        livereload: 35729
      },
      livereload: {
        options: {
          open: true,
          middleware: function (connect) {
            return [
              connect.static('.tmp'),
              connect().use(
                '/bower_components',
                connect.static('./bower_components')
              ,function(req, res, next) {
                res.setHeader('Access-Control-Allow-Origin', '*');
                res.setHeader('Access-Control-Allow-Methods', '*');
                next();
              }
              ),
              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:  /\.\.\//
      },
      test: {
        devDependencies: true,
        src: '<%= karma.unit.configFile %>',
        ignorePath:  /\.\.\//,
        fileTypes:{
          js: {
            block: /(([\s\t]*)\/{2}\s*?bower:\s*?(\S*))(\n|\r|.)*?(\/{2}\s*endbower)/gi,
              detect: {
                js: /'(.*\.js)'/gi
              },
              replace: {
                js: '\'{{filePath}}\','
              }
            }
          }
      },
      sass: {
        src: ['<%= yeoman.app %>/styles/{,*/}*.{scss,sass}'],
        ignorePath: /(\.\.\/){1,2}bower_components\//
      }
    },

    // Compiles Sass to CSS and generates necessary files if requested
    compass: {
      options: {
        sassDir: '<%= yeoman.app %>/styles',
        cssDir: '.tmp/styles',
        generatedImagesDir: '.tmp/images/generated',
        imagesDir: '<%= yeoman.app %>/images',
        javascriptsDir: '<%= yeoman.app %>/scripts',
        fontsDir: '<%= yeoman.app %>/styles/fonts',
        importPath: './bower_components',
        httpImagesPath: '/images',
        httpGeneratedImagesPath: '/images/generated',
        httpFontsPath: '/styles/fonts',
        relativeAssets: false,
        assetCacheBuster: false,
        raw: 'Sass::Script::Number.precision = 10\n'
      },
      dist: {
        options: {
          generatedImagesDir: '<%= yeoman.dist %>/images/generated'
        }
      },
      server: {
        options: {
          sourcemap: true
        }
      },
      ionic: {
        options: {
          debugInfo: true,
          sassDir: '<%= yeoman.app %>/ionic/scss',
          cssDir: '<%= yeoman.app %>/ionic/release/css',
          fontsDir: '<%= yeoman.app %>/ionic/release/fonts',
          httpFontsPath: '/fonts'
        }
      }
    },

    // 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
    usemin: {
      html: ['<%= yeoman.dist %>/{,*/}*.html'],
      css: ['<%= yeoman.dist %>/styles/{,*/}*.css'],
      options: {
        assetsDirs: [
          '<%= yeoman.dist %>',
          '<%= yeoman.dist %>/images',
          '<%= yeoman.dist %>/styles'
        ]
      }
    },

    // 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
        },
        files: [{
          expand: true,
          cwd: '<%= yeoman.dist %>',
          src: ['*.html', 'views/{,*/}*.html'],
          dest: '<%= yeoman.dist %>'
        }]
      }
    },

    // ng-annotate tries to make the code safe for minification automatically
    // by using the Angular long form for dependency injection.
    ngAnnotate: {
      dist: {
        files: [{
          expand: true,
          cwd: '.tmp/concat/scripts',
          src: ['*.js', '!oldieshim.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 %>',
          src: [
            '*.{ico,png,txt}',
            '.htaccess',
            '*.html',
            'views/{,*/}*.html',
            'images/{,*/}*.{webp}',
            'styles/fonts/{,*/}*.*'
          ]
        }, {
          expand: true,
          cwd: '.tmp/images',
          dest: '<%= yeoman.dist %>/images',
          src: ['generated/*']
        },
        {
          expand: true,
          cwd: '<%= yeoman.app %>/ionic/release/fonts',
          dest: '<%= yeoman.dist %>/fonts',
          src: ['{,*/}*.*']
        }]
      },
      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: [
        'compass:server',
        'compass:ionic'
      ],
      test: [
        'compass',
        'compass:ionic'
      ],
      dist: [
        'compass:dist',
        'compass:ionic',
        'imagemin',
        'svgmin'
      ]
    },

    // Test settings
    karma: {
      unit: {
        configFile: 'test/karma.conf.js',
        singleRun: 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',
      'ngconstant:local',
      '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',
    'wiredep:test',
    'concurrent:test',
    'autoprefixer',
    'connect:test',
    'karma'
  ]);

  grunt.registerTask('build', function (target) {
      var ngconstant = typeof target !== 'undefined' ? 'ngconstant:'+target : 'ngconstant:dev';

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

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

最后，我设法以某种方式使用“grunt build”构建项目，但遇到了 grunt-contrib-imagemin 和 grunt-ng-annotate 的问题。在我将提到的版本更新为最新版本并运行“npm install”之前，我无法构建它。尽管如此，编译构建的项目仍然存在与上述相同的问题，图像无法显示并且 scss 丢失。

我通过在我的 Gruntfile 中取消注释以下内容解决了 scss 问题:

    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'
    }]
  }
},

在 html 中硬编码的图像显示正常，但其他图像被缩小并重命名为例如 image.27c803.jpg，但应用程序仍然要求 image.jpg。所以，我暂时通过复制/images 文件夹中的源图像来解决它，但每次构建项目时都这样做是一项艰苦的工作。

Answer 1

我设法替代地解决了这个问题。我只是评论了重命名图像的行。现在图像被复制了它们的原始名称，但我不确定它们是否被缩小了。但是，它现在可以正常工作。

    // 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/*'
    ]
  }
},