How to specify multiple input source-map when concatenate files?

[krivochenko]

Bug report or feature request?
feature

ES5 or ES6+ input?
ES6

Uglify version (uglifyjs -V)
uglify-js 3.1.6

Hi, everyone

I have two JS-files compiled by Webpack. Each of them has source-map: dll/vendor.js - dll/vendor.js.map and dist/app.js - dist/app.js.map. I want to concatenate files in the server.js and in the same moment concatenate their map-files in server.js.map for can be able to debug resulted server.js.

I use UglifyJS: uglifyjs dll/vendor.js dist/app.js --output dist/server.js
Following by documentation I have to specify --source-map content='/path/to/source/map'

How I can define two source-maps? Or, maybe, there is another way to concatenate files.

Thanks for advance.

[alexlamsl]

Closing as duplicate of #145

Basically we're waiting for contribution on this feature for quite a while now 😉