How to create a "rebuild" task in gulp?

Question

gulp.task('build', function () {
  // Build, generate files...
});

gulp.task('clear', function () {
  // Delete generated files.
});

gulp.task('rebuild', function () {
  // First: clear
  // Then: build
});

In most case, "build" task doesn't need previous generated files to be removed (which slows the build process).

But there is times when I want to run "clear" and "build" task in one command:

Of course "rebuild" task depends on "clear" and "build", but if I use dependency hint like

gulp.task('rebuild', ['clear', 'build']);

the two tasks run asynchronously, which results in unexpected problem!

The easy way to solve this problem is run:

gulp clear
gulp build

but a single command

gulp rebuild

is easier, right? :P

By the way, gulp.series() has been deprecated...

What about gulp <task> --rebuild?

Yaroslav Stavnichiy
– Yaroslav Stavnichiy

2023-03-19 16:16:19 +00:00
Commented Mar 19, 2023 at 16:16 — Yaroslav Stavnichiy
– Yaroslav Stavnichiy, Commented Mar 19, 2023 at 16:16

Joe · Accepted Answer · 2017-03-17 19:22:06Z

1

It's not perfect but should work. Extract build task into a function. Then excute in the build and rebuild tasks.

var build = function() {
    return gulp.src().concat();
}

gulp.task('build', function () {
  return build();
});

gulp.task('clear', function () {
  // Delete generated files.
});

gulp.task('rebuild', ['clear'], function () {
  return build();
});

answered Mar 17, 2017 at 19:22

Joe

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Comments

Wes Foster · Accepted Answer · 2017-03-17 19:26:21Z

0

My solution isn't via Gulp as you requested, but NPM may be a better choice since you probably have NPM right there handy. All you're trying to do is save a few keystrokes.

Add an NPM script "rg" (rebuild-gulp) which does what you need:

"scripts": {
  "rg": "gulp clear && gulp build"
}

Invoke with npm run rg

answered Mar 17, 2017 at 19:26

Wes Foster

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