如何将使用grunt的节点应用程序部署到heroku [英] How to deploy node app that uses grunt to heroku

问题描述

我使用的是grunt和grunt插件，比如 grunt-contrib-copy ， grunt-contrib-mincss （列为我的应用程序的npm依赖项）。

另外，我不提交 npm_modules 文件夹和 public 文件夹，其中所有生成的文件都是。我无法弄清楚如何在部署和设置我的服务器（它已经在寻找 c> public）之后构建我的应用程序（我有 grunt build 命令） 文件夹）。

我看到了一些像 grunt-heroku-deploy 的东西，但在上传之前进行提交似乎是个不错的主意。也许有一些温和的决定......任何想法？

解决方案

npm支持 postinstall 步骤（其中包括许多其他），可能正是您正在寻找的内容。

node.js heroku buildpack在您运行此命令时推送到heroku以解决构建依赖关系：

  $ npm install --production 
  

https： //devcenter.heroku.com/articles/nodejs-support#build-behavior

如果您查看npm文档，您可以设置一个系列脚本在任何人在运行 npm install 之前或之后运行。它在 package.json 的脚本属性中配置。当包的生命周期中发生某些事情时，脚本属性允许运行自定义脚本（包括 grunt ）。

例如，当任何人（包括Heroku）运行时，要回显一些文本并运行 grunt npm install ，将它添加到你的 package.json ：

  {
 ... 
脚本：{
postinstall：echo postinstall time; ./node_modules/grunt-cli/bin/grunt<您的任务名称> 
}，
 ... 
} 
  

https://npmjs.org/doc/scripts.html

重要提示：

• 您可能必须将路径更改为 postinstall 脚本，如果 grunt 命令没有执行，请检查错误输出。
  
• grunt 和 grunt-cli 必须在您的<$ c中列为依赖项 $ c> package.json 所以它被Heroku安装。将它们列在 devDependencies 下是不够的，因为Heroku不会安装它们。另外，请注意，Heroku不会将其安装为全局包，因此要在Heroku上执行它，您将不得不使用相对路径（如上面配置）。

如果这不起作用（您可能需要小心摆弄相对路径），那么您可能需要考虑编写您自己的Heroku自定义buildpack 。

$ b

更新

从0.4开始， grunt 包不再包含 grunt 二进制文件，它现在是 grunt-cli 包的一部分。答案已经更新，以反映这一点。

I'm using grunt and also grunt plugins like grunt-contrib-copy, grunt-contrib-mincss (that listed as npm dependencies for my application).

Also I don't commit npm_modules folder and public folder, where all generated files are. And I can't figure out how to build my app (I have grunt build command) after deploy and setup my server (it's already looking for public folder).

I saw some stuff like grunt-heroku-deploy, but it seems me a bad idea to commit before upload. Maybe there are some gentle decisions... Any thoughts?

解决方案

npm has a support for a postinstall step (among many others) that might be just what you're looking for.

The node.js heroku buildpack runs this command when you push to heroku to resolve build dependencies:

$ npm install --production

https://devcenter.heroku.com/articles/nodejs-support#build-behavior

If you take a look at the npm documentation, you can setup a series of scripts to run either before or after anyone runs npm install for your package. It's configured in the scripts property of package.json. The scripts property allows to run custom scripts (including grunt) when certain things happen in a package's lifecycle.

For example, to echo some text and run the grunt command whenever anyone (including Heroku) runs npm install, add this to your package.json:

{
  ...
  "scripts": {
    "postinstall": "echo postinstall time; ./node_modules/grunt-cli/bin/grunt <your task name>"
  },
  ...
}

https://npmjs.org/doc/scripts.html

Important caveats:

• You might have to change the path to the grunt binary in the postinstall script, check the error output if the grunt command doesn't execute.
• grunt and grunt-cli must be listed as a dependency in your package.json so it gets installed by Heroku. Listing them under devDependencies is not sufficient since Heroku won't install those. Also, note that Heroku won't install it as a global package so to execute it on Heroku you're going to have to use a relative path (as it is configured above).

If this doesn't work (you'll probably need to fiddle with the relative paths a bit), then you might want to consider writing your own custom buildpack for Heroku.

Update

As of 0.4, the grunt package no longer contains the grunt binary, which is now part of the grunt-cli package. The answer has been updated to reflect this.

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