Is it possible to automate (grunt, gulp or other means) the replacement of characters in the text?

Question

Automation

Hello!
I want to achieve automatic replacement of tabs with 4 spaces in the original files, i.e. in sources. Is it possible to create a similar task, maybe there is a package for grunt? ..
Using spaces is not an option right away.
I would be grateful for advice, thanks.

Answer 1

For Gulp
For Grunt

Answer 2

unexpand is used for this. In general, set up the editor.