Grunt Image Paths in CoffeeScript (eco) Templates

Question

I've ran into a slight issue referring to images in production environment. Image files are generated using imagemin and I end up with /images/.. files – which is totally fine, but I don't know how to refer to them in CoffeeScript. Specifically in my ECO templates that I'm using BackboneJS with.

Everything works fine in CSS – compass seems to be taking care of putting in the right urls. But there's no helper I can use (or I don't know how) to refer to that image url.

So a simple:

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

Works in development, but not in production.

Any help would be appreciated.

I'm using grunt/yeoman. Here's my 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

If the site is served from the root of your host: domain.com, then you could use absolute urls to fix this: src="/images/image.png". If not, you might have to figure out where they are.

Actually, the problem is probably the grunt-rev task. It renames the images and updates the CSS/HTML but probably isnt doing it in your templates. You could either check the plugin to see if it supports that task and if it doesn't, patch it so it does or not have images in the templates and maybe have them in CSS only as background images.