如何用coffeescript和requirejs使用Node和Express? [英] How do I use Node and Express with coffeescript and requirejs?
问题描述
这是我想要的。
- 使用express webserver的节点应用程序
- 使用coffeescript在服务器上,更重要的是客户端
- 在客户端(最终在服务器上)使用require.js
我可以找到为客户端挂载咖啡书的推荐方法是使用连接 - 资产的。这似乎需要使用翡翠助手实际编译coffeescript例如。
The recommended way I've been able to find of hooking up coffeescript for the client is to use connect-assets. This seems to require using jade helpers to actually compile coffeescript eg.
!=js('monalisa.js')
似乎编译monalisa.coffee并生成正确的< script>
标签。现在我想使用require.js,这里我绊倒了。如何确保连接资产可以正确编译一切,而无需使用翡翠助手?
seems to compile monalisa.coffee and generate the correct <script>
tag. Now I want to use require.js and here I stumble. How do I ensure that connect-assets compiles everything correctly without using the jade helpers?
这是我相当简单的app.js:
Here's my fairly simple app.js:
require('coffee-script');
var express = require('express')
, http = require('http')
, path = require('path')
, connectAssets = require('connect-assets');
var publicDir = path.join(__dirname, 'public');
var app = express();
app.configure(function(){
app.set('port', process.env.PORT || 3000);
app.set('views', __dirname + '/views');
app.set('view engine', 'jade');
app.use(express.favicon());
app.use(express.logger('dev'));
app.use(express.bodyParser());
app.use( connectAssets() );
app.use('/public', express.static(publicDir));
app.use(express.logger());
app.use(express.methodOverride());
app.use(app.router);
});
app.configure('development', function(){
app.use(express.errorHandler({
dumpExceptions: true,
showStack: true
}));
});
app.get('/', require('./routes').index);
app.get('/monalisa', require('./routes/monalisa').monalisa);
http.createServer(app).listen(app.get('port'), function(){
console.log("Express server listening on port " + app.get('port'));
});
推荐答案
我已经创建了一个软件包来帮助解决这个问题;它被称为 connection-assets-jspaths 。
I've created a package to help solve this problem; it's called connect-assets-jspaths.
从自述文件中:
npm install connect-assets -jspaths
- 请注意,对CoffeeScript有依赖关系。
- Note, there is a dependency on CoffeeScript.
服务器端使用情况
assets = require "connect-assets"
jsPaths = require "connect-assets-jspaths"
# Snip ...
app.use assets()
# Exports the global function exportPaths() and jsUrl(); see below in View Helpers.
jsPaths assets
# Optionally, pass a log function to see progress
# jsPaths assets, console.log
观看更改并重新编译
现在,您可以传递一些额外的回调,并监视连接资产
Watch changes and re-compile
Now you can pass some additional callbacks in and it will monitor your connect assets directories for changes.
fileChangedCallback = (err, filePath) ->
console.log "File Changed: #{filePath}"
jsPaths assets, console.log, fileChangedCallback, (err, watcher) ->
console.log "Watcher initialized"
注意
此模块导出两个全局函数 exportPaths()
和 jsUrl()
。
This module exports two global functions exportPaths()
and jsUrl()
.
// Using this in your view
!= exportPaths("jsPaths")
// Turns into this when rendered in production
<script type="text/javascript">
var jsPaths = { "main", "/builtAssets/js/main.13819282742.js" /* snip all the other file paths */ };
</script>
// Using this in your view
- var mainJsPath = jsUrl("/js/main.js")
script(type="text/javascript", data-main="#{mainJsPath}", src="//cdnjs.cloudflare.com/ajax/libs/require.js/2.0.2/require.min.js")
// Turns into this when rendered in production
<script type="text/javascript" data-main="/builtAssets/js/main.13819282742.js" src="//cdnjs.cloudflare.com/ajax/libs/require.js/2.0.2/require.min.js"></script>
动态RequireJS路径
现在我们有一个变量与我们的requireJS友好的路径,我们可以设置这些路径在RequireJS配置
Dynamic RequireJS Paths
Now that we have a variable with our requireJS friendly paths in it, we can set those paths in the RequireJS config
# Example main.coffee file in /assets/js folder
requirePaths =
paths:
jquery: "//cdnjs.cloudflare.com/ajax/libs/jquery/1.7.2/jquery.min"
underscore: "//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.3.3/underscore-min"
backbone: "//cdnjs.cloudflare.com/ajax/libs/backbone.js/0.9.2/backbone-min"
text: "/js/lib/text"
handlebars: "/js/lib/handlebars"
if jsPaths
for own key, value of jsPaths
# Fix up the lib references
key = key.slice 4 if key.slice(0, 4) == "lib/"
requirePaths.paths[key] = value
require.config
paths: requirePaths.paths
shim:
jquery:
exports: "$"
underscore:
exports: "_"
backbone:
deps: ["underscore", "jquery"]
exports: "Backbone"
require ['app'], (App) ->
new App().initialize()
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