我可以在 Heroku 中运行咖啡脚本吗? [英] Can I run coffeescript in Heroku?

问题描述

我有一个用 CoffeeScript 编写的 node.js 应用程序.

I have a node.js app written in CoffeeScript.

我想知道在 Heroku 上托管应用需要什么.

I'm wondering what is needed in order to host the app on Heroku.

谢谢

推荐答案

由于 Heroku 的更新，它现在允许 npm 安装 coffee-script来源.下面的答案是 Heroku 完全支持 node.js 之前的解决方法.对于当前更好的解决方案，请参阅评分较高的答案，解释如何在 Heroku 上简单地使用 npm 中的 coffee-script.

Due to the updates with Heroku, it now allows for an npm installation of the coffee-script source. The answer below was a work-around before Heroku fully supported node.js. For a better solution currently, please see the higher rated answer explaining how to simply use coffee-script from npm on Heroku.

说实话，最好的方法是像 Peter 建议的那样使用 coffee -c filename 事先编译它，但我想知道你是否可以有一种预加载"preload.js 将使用 coffeescript 作为 node_module 调用脚本，然后 compile() 要使用的脚本.这样您就可以在 heroku 上的节点中本地使用它们，而无需处理 repo 中的额外文件.

To be honest the best way would be to compile it before hand using coffee -c filename like Peter suggested, but I wonder if you could have a sort of 'preload' preload.js that will call the scripts using coffeescript as a node_module then compile() the script to be used. That way you can use them natively in node on heroku without dealing with extra files in your repo.

npm install coffee-script

然后在初始应用中，用javascript编写，并使用coffee的编译函数调用*.coffee文件:

Then in the inital app, write it in javascript and call the *.coffee files using coffee's compile function:

var coffee = require('coffee-script');
coffee.compile('./server.coffee');
// could be coffee.run(file) instead, not sure

并在 yourapp.coffee 中尝试

console.log 'It worked!'

我不确定这是否可行，或者这是否是该函数的正确语法.https://github.com/jashkenas/coffee-script/blob/master/lib/coffee-script.js#L24

I'm not sure if this would work, or if that's even the proper syntax for that function. https://github.com/jashkenas/coffee-script/blob/master/lib/coffee-script.js#L24

如果你想用 ruby​​ 来做，这里是:

If you're asking about doing it in ruby, here's this:

演练如何在 Heroku 上的 rails 中使用 coffeescript:http://drnicwilliams.com/2010/03/15/using-coffeescript-in-rails-and-even-on-heroku/

Walkthrough on how to use coffeescript in rails on Heroku: http://drnicwilliams.com/2010/03/15/using-coffeescript-in-rails-and-even-on-heroku/

建议使用 bistro_car ( https://github.com/jnicklas/bistro_car )

It suggests using bistro_car ( https://github.com/jnicklas/bistro_car )

gem install bistro_car
mkdir -p app/scripts

并将其添加到您的 Rails conf/environment.rb

and adding it to your Rails conf/environment.rb

config.gem 'bistro_car'

如果我找到其他方法或其他方式来本地运行 *.coffee javascript 应用程序，我会更新这个答案，但希望这会给你一些关于如何让它工作的想法.

If I find something else or another way to natively run *.coffee javascript apps, I'll update this answer but hopefully this will give you some idea on how to get it to work.

这里还有几个例子，但它们似乎都在使用 ruby​​ 和 node.js:

Here are a couple more examples, but they all seem to be using ruby vs node.js as well:

http://forrst.com/posts/Doing_CoffeeScript_on_Heroku_a_Ruby_gem-OBkhttp://www.tangiblecolors.com/first-steps-with-coffeescript-and-how-to-use

http://forrst.com/posts/Doing_CoffeeScript_on_Heroku_a_Ruby_gem-OBk http://www.tangiblecolors.com/first-steps-with-coffeescript-and-how-to-use

希望这会有所帮助.

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