Sourcemaps for production builds

[sergunich]

Type of issue

Feature request

Description

Currently, it's possible to have sourcemaps only for development builds but it would be helpful to have the option to generate sourcemaps for production build too.
https://github.com/prebid/Prebid.js/blob/master/gulpfile.js#L205

Other information

The end goal of this is to submit generated sourcemaps to the Sentry to have proper stackframes for the errors:
https://docs.sentry.io/platforms/javascript/sourcemaps/

[dgirardi]

@sergunich are you asking for the option to generate sourcemaps just when building Prebid directly from source? it would have no effect on for example the bundles generated by the Prebid.org download page or projects that pull Prebid from npm.

[sergunich]

option to generate sourcemaps just when building Prebid directly from source

Yeah, that's what I meant 👍

[dgirardi]

Understood; I'm going to put this on hold until we upgrade Webpack (which should happen soon - #7935) as that changes a few things about the build.