coffeescript - CoffeeScript (eco) 模板中的 Grunt 图像路径

Question

我在生产环境中遇到了一个关于图像的小问题。图像文件是使用 imagemin 生成的，最终得到/images/.. 文件 – 这完全没问题，但我不知道如何在 CoffeeScript 中引用它们。特别是在我使用 BackboneJS 的 ECO 模板中。

CSS 中一切正常 - 指南针似乎负责输入正确的网址。但我没有可以使用(或者我不知道如何)来引用该图像网址的帮助程序。

很简单:

<img src="images/draggable.png" />

适用于开发，但不适用于生产。

如有任何帮助，我们将不胜感激。

我正在使用 grunt/yeoman。这是我的 Gruntfile.js:

'use strict';
if (process.env.NODE_ENV != 'production') {
  var LIVERELOAD_PORT = 35729;
  var lrSnippet = require('connect-livereload')({port: LIVERELOAD_PORT});
  var mountFolder = function (connect, dir) {
      return connect.static(require('path').resolve(dir));
  };
}

// # Globbing
// for performance reasons we're only matching one level down:
// 'test/spec/{,*/}*.js'
// use this if you want to match all subfolders:
// 'test/spec/**/*.js'
// templateFramework: 'lodash'

module.exports = function (grunt) {
    // load all grunt tasks
    require('matchdep').filterDev('grunt-*').forEach(grunt.loadNpmTasks);

    // configurable paths
    var yeomanConfig = {
        app: 'app',
        dist: 'dist'
    };

    grunt.initConfig({
        yeoman: yeomanConfig,
        watch: {
            options: {
                nospawn: true,
                livereload: true
            },
            coffeeTest: {
                files: ['test/spec/{,*/}*.coffee'],
                tasks: ['coffee:test']
            },
            compass: {
                files: ['<%= yeoman.app %>/styles/{,*/}*.{scss,sass}'],
                tasks: ['compass']
            },
            livereload: {
                options: {
                    livereload: LIVERELOAD_PORT
                },
                files: [
                    '<%= yeoman.app %>/*.html',
                    '{.tmp,<%= yeoman.app %>}/styles/{,*/}*.css',
                    '{.tmp,<%= yeoman.app %>}/scripts/{,*/}*.js',
                    '<%= yeoman.app %>/images/{,*/}*.{png,jpg,jpeg,gif,webp}'
                ]
            },
            eco: {
                files: [
                    '<%= yeoman.app %>/scripts/templates/**/*.eco',
                    '<%= yeoman.app %>/*.html',
                    '{.tmp,<%= yeoman.app %>}/styles/{,*/}*.css',
                    '{.tmp,<%= yeoman.app %>}/scripts/{,*/}*.js',
                    '<%= yeoman.app %>/images/{,*/}*.{png,jpg,jpeg,gif,webp}'
                ],
                tasks: ['eco', 'coffee:dist', 'neuter']
            },
            jst: {
                files: [
                    '<%= yeoman.app %>/scripts/templates/*.ejs'
                ],
                tasks: ['jst']
            },
            neuter: {
                files: ['{.tmp,<%= yeoman.app %>}/scripts/**/*.{js,coffee}'],
                tasks: ['coffee:dist', 'neuter']
            }
        },
        connect: {
            options: {
                port: 9000,
                // change this to '0.0.0.0' to access the server from outside
                hostname: 'localhost'
            },
            livereload: {
                options: {
                    middleware: function (connect) {
                        return [
                            lrSnippet,
                            mountFolder(connect, '.tmp'),
                            mountFolder(connect, yeomanConfig.app)
                        ];
                    }
                }
            },
            test: {
                options: {
                    middleware: function (connect) {
                        return [
                            mountFolder(connect, '.tmp'),
                            mountFolder(connect, 'test'),
                            mountFolder(connect, yeomanConfig.app)
                        ];
                    }
                }
            },
            dist: {
                options: {
                    middleware: function (connect) {
                        return [
                            mountFolder(connect, yeomanConfig.dist)
                        ];
                    }
                }
            }
        },
        open: {
            server: {
                path: 'http://localhost:<%= connect.options.port %>'
            }
        },
        clean: {
            dist: ['.tmp', '<%= yeoman.dist %>/*'],
            server: '.tmp'
        },
        jshint: {
            options: {
                jshintrc: '.jshintrc'
            },
            all: [
                'Gruntfile.js',
                '<%= yeoman.app %>/scripts/{,*/}*.js',
                '!<%= yeoman.app %>/scripts/vendor/*',
                'test/spec/{,*/}*.js'
            ]
        },
        mocha: {
            all: {
                options: {
                    run: true,
                    urls: ['http://localhost:<%= connect.options.port %>/index.html']
                }
            }
        },
        coffee: {
            dist: {
                files: [{
                    // rather than compiling multiple files here you should
                    // require them into your main .coffee file
                    expand: true,
                    cwd: '<%= yeoman.app %>/scripts',
                    src: '**/*.coffee',
                    dest: '.tmp/scripts',
                    ext: '.js'
                }]
            },
            test: {
                files: [{
                    expand: true,
                    cwd: '.tmp/spec',
                    src: '*.coffee',
                    dest: 'test/spec'
                }]
            }
        },
        compass: {
            options: {
                sassDir: '<%= yeoman.app %>/styles',
                cssDir: '.tmp/styles',
                imagesDir: '<%= yeoman.app %>/images',
                javascriptsDir: '<%= yeoman.app %>/scripts',
                fontsDir: '<%= yeoman.app %>/styles/fonts',
                importPath: '<%= yeoman.app %>/bower_components',
                relativeAssets: true
            },
            dist: {},
            server: {
                options: {
                    debugInfo: true
                }
            }
        },
        useminPrepare: {
            html: '<%= yeoman.app %>/index.html',
            options: {
                dest: '<%= yeoman.dist %>'
            }
        },
        usemin: {
            html: ['<%= yeoman.dist %>/{,*/}*.html'],
            css: ['<%= yeoman.dist %>/styles/{,*/}*.css'],
            options: {
                dirs: ['<%= yeoman.dist %>']
            }
        },
        imagemin: {
            dist: {
                files: [{
                    expand: true,
                    cwd: '<%= yeoman.app %>/images',
                    src: '{,*/}*.{png,jpg,jpeg}',
                    dest: '<%= yeoman.dist %>/images'
                }]
            }
        },
        cssmin: {
            dist: {
                files: {
                    '<%= yeoman.dist %>/styles/main.css': [
                        '.tmp/styles/{,*/}*.css',
                        '<%= yeoman.app %>/styles/{,*/}*.css'
                    ]
                }
            }
        },
        htmlmin: {
            dist: {
                options: {
                    /*removeCommentsFromCDATA: true,
                    // https://github.com/yeoman/grunt-usemin/issues/44
                    //collapseWhitespace: true,
                    collapseBooleanAttributes: true,
                    removeAttributeQuotes: true,
                    removeRedundantAttributes: true,
                    useShortDoctype: true,
                    removeEmptyAttributes: true,
                    removeOptionalTags: true*/
                },
                files: [{
                    expand: true,
                    cwd: '<%= yeoman.app %>',
                    src: '*.html',
                    dest: '<%= yeoman.dist %>'
                }]
            }
        },
        copy: {
            dist: {
                files: [{
                    expand: true,
                    dot: true,
                    cwd: '<%= yeoman.app %>',
                    dest: '<%= yeoman.dist %>',
                    src: [
                        '*.{ico,txt}',
                        '.htaccess',
                        'images/{,*/}*.{webp,gif}'
                    ]
                }]
            }
        },
        bower: {
            all: {
                rjsConfig: '<%= yeoman.app %>/scripts/main.js'
            }
        },
        eco: {
          compile: {
              files: {
                  '.tmp/scripts/templates.js': ['<%= yeoman.app %>/scripts/templates/{,*/}*.eco']
              }
          }
        },
        jst: {
            compile: {
                files: {
                    '.tmp/scripts/templates.js': ['<%= yeoman.app %>/scripts/templates/*.ejs']
                }
            }
        },
        rev: {
            dist: {
                files: {
                    src: [
                        '<%= yeoman.dist %>/scripts/{,*/}*.js',
                        '<%= yeoman.dist %>/styles/{,*/}*.css',
                        '<%= yeoman.dist %>/images/{,*/}*.{png,jpg,jpeg,gif,webp}',
                        '<%= yeoman.dist %>/styles/fonts/*'
                    ]
                }
            }
        },
        neuter: {
            app: {
                src: '<%= yeoman.app %>/scripts/main.js',
                dest: '.tmp/scripts/combined-scripts.js'
            }
        }
    });

    grunt.registerTask('createDefaultTemplate', function () {
        grunt.file.write('.tmp/scripts/templates.js', 'this.JST = this.JST || {};');
    });

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

        grunt.task.run([
            'clean:server',
            'coffee:dist',
            'createDefaultTemplate',
            'eco',
            'neuter:app',
            'compass:server',
            'connect:livereload',
            'open',
            'watch'
        ]);
    });

    grunt.registerTask('test', [
        'clean:server',
        'coffee',
        'createDefaultTemplate',
        'eco',
        'neuter:app',
        'compass',
        'connect:test',
        'mocha'
    ]);

    grunt.registerTask('build', [
        'clean:dist',
        'coffee',
        'createDefaultTemplate',
        'eco',
        'compass:dist',
        'useminPrepare',
        'neuter:app',
        'imagemin',
        'htmlmin',
        'concat',
        'cssmin',
        'uglify',
        'copy',
        'rev',
        'usemin'
    ]);

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

    grunt.registerTask('heroku', 'build');


};

Answer 1

如果该网站是从您的主机的根目录提供服务的:domain.com，那么您可以使用绝对网址来解决此问题:src="/images/image.png"。如果没有，您可能必须弄清楚它们在哪里。

实际上，问题可能出在 grunt-rev 任务上。它会重命名图像并更新 CSS/HTML，但可能不会在您的模板中执行此操作。您可以检查插件以查看它是否支持该任务，如果不支持，请对其进行修补，使其在模板中包含或不包含图像，并且可能仅在 CSS 中将它们作为背景图像。