在 npm install 上编译咖啡脚本 [英] Compiling coffeescript on npm install

问题描述

我正在构建一个由 private 组成的应用程序内置在 CoffeeScript 中的 npm repos.为了保持部署语言不可知，并允许每个应用程序指定其 CoffeeScript 版本，我将 CoffeeScript 作为依赖项包含在每个库中，并在安装 npm 时构建到 JavaScript 中.

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 安装适用于独立存储库，但当我尝试安装依赖于正在构建的另一个存储库的存储库时失败.

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

所以如果我有 repo-a，它的 package.json 包括这个:

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"
}

和repo-b，其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"
}

两者都有一个看起来像这样的 Cakefile，在 npm install 钩子上调用了一个 install 任务:

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 适用于 repo-a，但对于 repo-b 失败并显示以下消息:

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

此时 node_modules 中存在未完成的 ___coffee-script.npm 目录.

at which point an unfinished ___coffee-script.npm directory exists in node_modules.

当然，使用 app.js 会容易得多wrapper，但我需要部署 JavaScript，而不是 CoffeeScript.谁能告诉我如何让它工作?

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?

推荐答案

两件事.

1. 如果您从 npm 命令运行 cake，您可以指定 cake install 或 cake build 作为 scripts.install 字段.这将在本地安装咖啡脚本后运行，并且它的 bin 正确链接(在 Windows 上使用 shim)，并将使用 PATH 环境运行，以便本地安装的 cake 而不是系统路径中的任何其他内容.
2. 如果你不是从 npm 命令运行它，但你仍然期望咖啡脚本已经通过 npm 安装在本地(看起来像这样)，那么你应该是点击 ./node_modules/.bin/cake 或 ./node_modules/.bin/coffee 而不是深入了解包内部.

1. 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.
2. 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.

如果你不使用 npm 安装咖啡脚本，而是使用一些 git 子模块或其他东西，那么你就靠自己了 :)

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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