feature_request(config): support Browserslist

1. Summary

It would be nice, if browser-update will support Browserslist.

2. Argumentation

What is Browserslist. For example, I use Browserslist in order to indicate AutoPrefixer, which browsers-prefixes required.

If browser-update will support Browserslist, users can use one configuration file for AutoPrefixer (and another tools) and browser-update. Users doesn’t need duplicate properties and values for AutoPrefixer and browser-update.

browserslist file of my site:

Last 2 versions
not Explorer > 0

This is equivalent to:

required:{
    i:0,
    e:-1,
    f:-1,
    o:-1,
    o_a:-1,
    s:-1,
    c:-1,
    y:-1,
    v:-1,
    uc:-1,
    samsung:-1
}

3. Example of expected behavior

If browserslist exist:

will use values from browserslist. User doesn’t need required property.

else:

will use values of required property.

Thanks.

[nemchik]

I wrote up a little helper: https://gist.github.com/nemchik/08297ef04366ca9a6064d5f0c27e582a With this, you can use getRequiredFromList(queries) to return the value of the required option accepted by browserUpdate.

Note: you have to supply queries ( see https://github.com/browserslist/browserslist#queries ) because the browser won’t know the contents of your .browserslistrc or be able to read it from anywhere else like package.json.

[nemchik]

Thanks @andorfermichael I’ve added that change to my gist.