Maintain comments starting with /*! about rollup-plugin-cleanup

@aMarCruz Thank you :). Gave it a shot, only problem is I'm using IIFE and the end result is the license is added within the file (instead of at the top):

var fetchInject = (function () {
'use strict';

/*!
 * Copyright (c) 2017 Josh Habdas
 * @license MIT
 */
var fetchInject = function (urls) {

Given I'm trying to use uglify with this package, and it provides support, I'll see if I can get that working instead. Thanks again!

EDIT: Just stuck with rollup-plugin-license. Seems to fit my needs and doesn't add more than I really need.

Also, thanks for the plug-in. It's lovely 😄

[aMarCruz]

@jhabdas thanks to you! ...I'll take a look at your recommendation, I think there will be no problem adding a predefined filter for it in the next version.

In the mean time, you can use the regex /\*!/, like in this example:

  ...
  plugins {
    cleanup({
      comments: [ 'some', /\*!/ ]
    })

Please note: comments[] will overwrite de default filters (it is not additive).
I hope this help and will close this issue.

Excellent. I didn't know there was a workaround. I'd like to use this plug-in in combination with the minify plugin but my comments were getting clobbered for some reason so I've switched for now. Here's my current implementation: https://github.com/jhabdas/fetch-inject/blob/master/rollup.config.js

I would prefer to keep an abbreviated license field in the dist but have not yet found a way to do so using either plugin. Cheers and thanks again for considering my proposal.

[aMarCruz]

@jhabdas , try this:

  ...
  plugins {
    cleanup({
      comments: [ 'some', /^\*!/, /MIT License/ ]
    })