I would like to run gulp task on save button on .css file to minify file. I have tried gulp.watch but it is not working.

Is there any other way to minify file on save button. Using Sitecore 9.1.1.

CLI version: 2.3.0
Local version: 4.0.2
  • Can you explain a bit more in detail? What save button are you talking about? Some button in Sitecore? Dec 6, 2021 at 14:05
  • @JonKoivula, I am talking about Ctrl+S (Save any file through ctrl+s combination button)
    – Ashish
    Dec 6, 2021 at 15:30
  • Where are you pressing Ctrl + S`? Update the question with more information as the amount of information you have said is not clear. And how this is related to Sitecore? Dec 6, 2021 at 22:53
  • I have already mentioned save button on .css file. What kind of information do you need ?
    – Ashish
    Dec 7, 2021 at 7:20
  • If this issue is not about Sitecore then this is a wrong place to ask question of this. You should go to stackoverflow instead of here. Here you should only ask questions regarding to Sitecore. Dec 7, 2021 at 9:23

1 Answer 1


I have resolved this issue.

I have found two ways to resolve this issue.

1) gulp.watch
2) Bundler & Minifier Extension

gulp.watch :

gulp.task('minify:css',async function () {

gulp.task("watch",() => {
    gulp.watch("./css/*.css", gulp.series('minify:css'));

gulp.task('default', gulp.series('minify:css', 'watch'));

We need to click on default task on Task runner explorer to add the changes automatically in minified file.

I am using gulp version 4 so using gulp.series .If you are using gulp version 3 then you can use this code

gulp.task("watch",() => {
    gulp.task('default', ['minify:css', 'watch']);

Instead of

gulp.task("watch",() => {
    gulp.watch("./css/*.css", gulp.series('minify:css'));

gulp.task('default', gulp.series('minify:css', 'watch'));

Bundler & Minifier Extension

Found extension to automatically minified file by follow the steps in the below link https://marketplace.visualstudio.com/items?itemName=MadsKristensen.BundlerMinifier

We can add this extension in our project. enter image description here

enter image description here

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