Support nodejs asset compilation, similar to `rails-assets`

[fgrehm]

Describe the Enhancement

Support asset compilation with node (ex: with webpacker) for Go apps, without the need to specify one of the nodejs buildpacks

Possible Solution

A new go-assets buildpack that wraps some of the existing nodejs BPs (probably everything except for *-start ones), users can then specify the build CMD with BP_NODE_RUN_SCRIPTS

Motivation

It's possible to achieve this by simply including the full nodejs buildpack in a group alongside the go BP, but it'd be nice to be able to specify a single group for our go apps. One could also argue that there's a potential need for doing this for other languages like java and maybe others

[fg-j]

I like this idea. @fgrehm is there a sample application you could provide that demonstrates this Go + nodejs asset compilation use case?

[fgrehm]

is there a sample application you could provide that demonstrates this Go + nodejs asset compilation use case?

Unfortunately nothing public, even internally we only have one app that has this use case (but a very important one 😅 ).

That app has a "hand rolled" stack, but I do hope to play with https://gobuffalo.io at some point this week and can try to report back with more information.