postcss-progress
Print the current files being processed, time taken, and when a file is written during postcss.
Installation
$ npm install --save-dev postcss-progress
Then require that plugin in your code and use it:
var progress = ; ...plugins: progressstart // insert other plugins here progress;
Now when you run postcss you will get the following output, but it will also be colored.
src/index.css → dist/foo.css...
created dist/foo.css in 216ms