javascript - 如何一个接一个地顺序运行Gulp任务(How to run Gulp tasks sequentially one after the other)

Question

in the snippet like this:

(在这样的代码片段中：)

gulp.task "coffee", ->
    gulp.src("src/server/**/*.coffee")
        .pipe(coffee {bare: true}).on("error",gutil.log)
        .pipe(gulp.dest "bin")

gulp.task "clean",->
    gulp.src("bin", {read:false})
        .pipe clean
            force:true

gulp.task 'develop',['clean','coffee'], ->
    console.log "run something else"

In develop task I want to run clean and after it's done, run coffee and when that's done, run something else.

(在develop任务中，我希望运行clean并在完成后运行coffee ，当完成后，运行其他东西。)

But I can't figure that out.

(但我无法弄明白。)

This piece doesn't work.

(这件作品不起作用。)

Please advise.

(请指教。)

  ask by iLemming translate from so

Answer 1

By default, gulp runs tasks simultaneously, unless they have explicit dependencies.

(默认情况下，gulp同时运行任务，除非它们具有显式依赖关系。)

This isn't very useful for tasks like clean , where you don't want to depend, but you need them to run before everything else.

(这对于像clean这样的任务来说并不是很有用，你不想依赖它，但是你需要它们才能在其他任何事情之前运行。)

I wrote the run-sequence plugin specifically to fix this issue with gulp.

(我写了一个run-sequence插件，专门用gulp解决了这个问题。)

After you install it, use it like this:

(安装后，使用它如下：)

var runSequence = require('run-sequence');

gulp.task('develop', function(done) {
    runSequence('clean', 'coffee', function() {
        console.log('Run something else');
        done();
    });
});

You can read the full instructions on the package README — it also supports running some sets of tasks simultaneously.

(您可以阅读自述文件包README上的完整说明 - 它还支持同时运行一些任务集。)

Please note, this will be (effectively) fixed in the next major release of gulp , as they are completely eliminating the automatic dependency ordering, and providing tools similar to run-sequence to allow you to manually specify run order how you want.

(请注意，这将在gulp的下一个主要版本中（有效）修复 ，因为它们完全消除了自动依赖性排序，并提供类似于run-sequence工具，允许您手动指定运行顺序的方式。)

However, that is a major breaking change, so there's no reason to wait when you can use run-sequence today.

(但是，这是一个重大的突破性变化，因此没有理由等待今天可以使用run-sequence 。)