在npm安装上编译coffeescript [英] Compiling coffeescript on npm install

问题描述

我正在建立一个由私人npm回馈组成的应用程式内置CoffeeScript。为了保持部署语言无关性，并允许每个应用程序指定其版本的CoffeeScript，我将CoffeeScript作为每个库中的依赖项，并在npm安装时构建为JavaScript。

npm安装适用于独立的repos，但是当我尝试安装一个依赖于正在构建的另一个repo的repo时失败。

所以如果我有 repo-a ，其 package.json 包括：

 dependencies：{
coffee-script：〜1.2.0
}，
scripts：{
install ：./node_modules/coffee-script/bin/cake install
} 
  

和 repo-b ，其中 package.json 包括：

 dependencies：{
coffee-script：〜1.2.0，
repo-a：git + ssh： /[e-mail]:myrepo.git
}，
scripts：{
install：./node_modules/coffee-script/bin/cake install
} 
  

其中都有 Cakefile 类似这样，在npm 安装钩子上调用安装任务：

  {print} = requireutil
 {spawn} = requirechild_process
 
 coffee =./node_modules / coffee-script / bin / coffee
 
 echo =（child） - > 
 child.stdout.ondata，（data） - > print data.toString（）
 child.stderr.ondata，（data） - > print data.toString（）
 child 
 
 install =（cb） - > 
 console.logBuilding ...
 echo child = spawn coffee，[-c，-o，lib，src] 
 child.on退出，（状态） - > cb？（）如果status为0 
 
任务install，安装，构建和测试repo，安装
  
 
 
  npm install 适用于 repo-a  code> repo-b ：
  sh：./node_modules/coffee -script / bin / cake：没有这样的文件或目录
  
此时未完成的 ___ coffee-script.npm 目录存在于 node_modules 。
 
 
 
将更容易使用 app.js包装器，但我需要部署JavaScript，而不是CoffeeScript。 
解决方案
有两件事。
 
 
如果你从npm命令运行蛋糕，你可以指定 cake install 或 build 作为scripts.install字段。这将在本地安装咖啡脚本后运行，并且其bin被正确链接（在窗口上有一个垫片），并且将使用PATH环境运行，以使本地安装的 
 
 
如果您不是从npm命令运行此命令，但是系统路径中使用了 ./ node_modules / .bin / cake 或者 ./ node_modules / .bin / coffee 而不是深入包装内部。
 
 
如果你不是用npm安装咖啡脚本，而是使用一些git子模块或其他东西，那么你自己：）
 
I'm building an app consisting of private npm repos built in CoffeeScript. To keep deployment language-agnostic, and allow each app to specify its version of CoffeeScript, I'm including CoffeeScript as a dependency in each library, and building into JavaScript upon npm installation.

npm installation works fine for standalone repos, but fails when I try to install a repo that depends on another repo being built.

So if I have repo-a, whose package.json includes this:
"dependencies": {
  "coffee-script": "~1.2.0"
},
"scripts": {
  "install": "./node_modules/coffee-script/bin/cake install"
}
and repo-b, whose package.json includes this:
"dependencies": {
  "coffee-script": "~1.2.0",
  "repo-a": "git+ssh://[e-mail]:myrepo.git"
},
"scripts": {
  "install": "./node_modules/coffee-script/bin/cake install"
}
where both have a Cakefile that looks like this, with an install task called on an npm install hook:
{print} = require "util"
{spawn} = require "child_process"

coffee = "./node_modules/coffee-script/bin/coffee"

echo = (child) ->
  child.stdout.on "data", (data) -> print data.toString()
  child.stderr.on "data", (data) -> print data.toString()
  child

install = (cb) ->
  console.log "Building..."
  echo child = spawn coffee, ["-c", "-o", "lib", "src"]
  child.on "exit", (status) -> cb?() if status is 0

task "install", "Install, build, and test repo", install
npm install works for for repo-a, but fails for repo-b with this message:
sh: ./node_modules/coffee-script/bin/cake: No such file or directory
at which point an unfinished ___coffee-script.npm directory exists in node_modules.

Of course it would be much easier to use a app.js wrapper, but I need to deploy JavaScript, not CoffeeScript. Can anyone tell me how I could get this to work?
解决方案
Two things.

If you're running cake from an npm command, you can just specify cake install or cake build as the scripts.install field.  This will run after coffee-script has been installed locally, and its bin linked appropriately (with a shim on windows), and will run with a PATH environ such that the locally installed cake is used rather than anything else in the system path.
If you're not running this from an npm command, but you are nonetheless expecting that coffee-script has already been installed locally via npm (which it looks like), then you should probably be hitting ./node_modules/.bin/cake or ./node_modules/.bin/coffee rather than diving into the package internals.
If you are not installing coffee-script with npm, but instead using some git submodules or something, then you're on your own :)

                        
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