很好地在gulp任务中抛出错误 [英] Nicely throwing an error in gulp task

问题描述

  gulp.task（'favicon'，function（ ）{
 try {
 require（'child_process'）。execSync（'icotool --version'）; 
} catch（e）{
 var err = new Error 
 throw err; 
} 
 
 return gulp.src（''，{read：false}）
。 pipe（shell（[
'./generate-favicon.sh'
]））; 
}）; 
  

当通过gulp运行我的任务并运行错误时，错误将被呈现相当丑陋。
我想以这样的方式呈现错误， jslint gulp-util的 PluginError 。

它实际上可以创建一个 PluginError 在那里抛出来，但似乎不是很正确。
另一种解决方案不是很好设置

  err.showStack = false; 
  

至少有一个更好的错误输出。

解决方案

从什么我已经看到它不是很大的错误从gulp。但是我发现我曾经为我工作的这个博客条目。

http://gotofritz.net/blog/geekery/how-to-generate-error-in-gulp-task/

我的示例：

  var gulp = require（'gulp'）; 
 var gulpUtil = require（'gulp-util'）; 
 gulp.task（'deploy'，function（cb）{
 if（typeof（specialId）==='undefined'）{
 throw new gulpUtil.PluginError（{
插件：'deploy'，
 message：'specialId is empty。'
}）; 
} 
} 
  

I am creating a gulp task which might fail under certain circumstances.

gulp.task('favicon', function () {
  try {
    require('child_process').execSync('icotool --version');
  } catch( e ) {
    var err = new Error( 'Unix bash and icotool required for generating favicon' );
    throw err;
  }

  return gulp.src('', {read: false})
    .pipe(shell([
      './generate-favicon.sh'
    ]));
});

When running my task via gulp and running into the error, the error will be presented rather ugly. I would like to present the error in a way as it is done by e.g. jslint gulp-util's PluginError.

It actually works to just create a PluginError there and throw it but that doesn't seem quite right. Another solution not that nice would be to set

err.showStack = false;

for at least a little nicer error output. A gulp.task.Error would be nice.

解决方案

From what I've seen its not great to throw an error from gulp. But I found this blog entry that I used to work for me.

http://gotofritz.net/blog/geekery/how-to-generate-error-in-gulp-task/

My Example:

var gulp = require('gulp');
var gulpUtil = require('gulp-util');
gulp.task('deploy', function(cb) {
  if(typeof(specialId) === 'undefined') {
    throw new gulpUtil.PluginError({
      plugin: 'deploy',
      message: 'specialId is empty.'
    });
  }
}

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