Gulp wrap pipe

index.js

/**
 * Wrap gulp streams into fail-safe function for better error reporting
 * Usage:
 * gulp.task('less', wrapPipe(function(success, error) {
 *   return gulp.src('less/*.less')
 *      .pipe(less().on('error', error))
 *      .pipe(gulp.dest('app/css'));
 * }));
 */

function wrapPipe(taskFn) {
  return function(done) {
    var onSuccess = function() {
      done();
    };
    var onError = function(err) {
      done(err);
    }
    var outStream = taskFn(onSuccess, onError);
    if(outStream && typeof outStream.on === 'function') {
      outStream.on('end', onSuccess);
    }
  }
}

Yes, I also removed wrapper from mocha task.
Thank`s for nice idea to catch build process errors!

Let's assume I have few consecutive actions in one task. I have to catch errors for each of them?
Somehow like this way?

gulp.task('styles', wrapPipe(function(success, error) {
  return gulp.src('less/*.less')
    .pipe(less().on('error', error))
    .pipe(autoprefixer().on('error', error))
    .pipe(minifyCss().on('error', error))
    .pipe(gulp.dest('app/css'));
}));

@NeXTs Yes, you should do so, because pipes do not propagate errors