咕task任务等待退出 [英] Grunt task to wait for exit

问题描述

我有一个启动IIS Express异步的任务，并且要停止IIS，我必须发出一个咕噜的事件。

I've got a task that starts IIS Express async, and to stop IIS I have to fire a grunt event.

我想做一个任务只是等待，直到我按 ctrl-c ，然后触发该事件。

I would like to make a task that just waits until i press ctrl-c and then fires that event.

我试过这样做：

grunt.registerTask("killiis", function(){
    process.stdin.resume();
    var done = this.async();
    grunt.log.writeln('Waiting...');    

    process.on('SIGINT', function() {
        grunt.event.emit('iis.kill');
        grunt.log.writeln('Got SIGINT.  Press Control-D to exit.');
        done();
    });
});

成功停止grunt，但不会正确发送事件。

The task stops grunt successfully, but doesn't send the event properly.

推荐答案

SIGINT 处理程序在Node.js中工作，但不在Grunt中（我不知道为什么）。我使用 readline 模块手动处理 ctrl + c 并监听 exit event：

SIGINT handlers work in Node.js, but not in Grunt (I don't know why). I handle ctrl+c manually using readline module and listen to exit event:

var readline = require('readline');

var rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout
});

rl.on('SIGINT', function() {
  process.emit('SIGINT');
});

process.on('exit', killIis);

function killIis() {
  // kill it
}

此外，我建议收听 SIGINT ， SIGHUP 和 SIGBREAK 信号来处理控制台窗口关闭或 ctrl + break （如果有人使用它，heh）。在这些处理程序中调用 process.exit（）时，您还想停止应用程序：

Additionally I suggest to listen to SIGINT, SIGHUP and SIGBREAK signals to handle console window close or ctrl+break (if anybody use it, heh). Call process.exit() in these handlers when you also want to stop the app:

process.on('exit', killIis);
process.on('SIGINT', killIisAndExit);
process.on('SIGHUP', killIisAndExit);
process.on('SIGBREAK', killIisAndExit);

我有一个 grunt-iisexpress 在退出时杀死IIS： https://github.com/whyleee/grunt-iisexpress 。

I have a fork of grunt-iisexpress that kills IIS on exit: https://github.com/whyleee/grunt-iisexpress.

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