Migrate to jstransformer

[jmatsushita]

Hi there,

I had slow rendering times with a site using the jade/pug engine with metalsmith-layouts.

Using metalsmith-jstransformer-layouts helped speed up the rendering time of a jade metalsmith site previously using metalsmith-layouts from 9s to 2.9s.

I've done some early work that would allow to make metalsmith-jstransformer-layouts a drop in replacement for metalsmith-layouts.

I'm not sure that jstransformer covers all the rendering engines that consolidate.js does but it does cover a large amount of them and is fast.

Maybe it would be worth considering making the default metalsmith rendering engine migrate to jstransformer?

Cheers!

Jun

[doodzik]

do you have reproducible benchmarks?

[jmatsushita]

I'm afraid I don't! I only tested with one project. If there was a fixture to stress metalsmith-layouts then I'd be happy to run the fork of metalsmith-jstransformer-layouts in it!

[doodzik]

I think that the way to go here would be to make consolidate.js the default and that you can add your engine of choice as a dependency injection. if something even faster comes along we won't need to rewrite the whole library ;)

If you want you can open a PR with that change. I wouldn't be opposed to it.

[ismay]

Switching could also be an option if there are no breaking changes. If there are however, it would have to be significantly better than consolidate to justify breaking features.

[doodzik]

@jmatsushita are you still interested in helping on adding jstransformer to this metalsmith-layouts?

further discussion is going to take place on the issue #100

[jmatsushita]

Sorry @doodzik I don't have time to help on implementation. Very happy to test though.