build & install implementations using lerna

[nweldev]

Add two new scripts using lerna in order to ease examples' dependencies install & build:

• npm run bootstrap: install all implementations' dependencies
• npm run build-all -- --scope <glob>: build implementations, filtered by their package names
  • example: npm run build-all -- --scope "*vanillajs*"

This required to rename most packages in order to avoid conflicts, as some haven't been updated after copy.

FYI lerna can't be used if several packages have the same name.

[krausest]

Thanks. It's merged, but I'd like to name the targets lerna-bootstrap and lerna-build-all.
I'm not yet sold on switching to lerna since I had same painful experience with yarn (#221, #182) and so I avoided looking into lerna so far.
Currently I'm having a rather robust workflow for updating implementations with the docker-rebuild target to do a safe rebuild. Do you have any recommendations how to improve this with lerna?

[nweldev]

Well, actually, I only used lerna here as a quick and dirty way to ease implementations install & build for other contributors (me included). I'm not familiar enough with the docker-rebuild workflow to have any useful opinion on that. I'll try to give it a try when I'll have access to a more powerful computer 😅

But I don't expect Lerna to break anything like yarn used to, as it simply use npm under the hood.

[krausest]

I put a description of the docker build here: https://github.com/krausest/js-framework-benchmark/wiki/Build-all-frameworks-with-docker
I guess I wouldn‘t use it for development, since the turnaround times of a clean npm install and npm build-prod is much higher than hot reloading like the build-dev target often allows. But it‘s really great for maintenance since the docker-rebuild target allows rebuilding and checking one implementation in a controlled environment.