Painfully slow performance during development

[steffenmllr]

I'm evaluating linaria for a upcoming project and setup a sample repo here: https://github.com/steffenmllr/linaria-ts-storybook

Long story short: If I add linaria to the project the compiling time for 2 sample components increases to a painfully slow startup time (5s to 14s) which I might can live with but the rebuild time goes from instant 200ms to 5142ms.

So my question is: Is this a known issue or is my configuration wrong. Also can you point me in the direction where/why this is happening so I can help to improve it :)

node v8.14.0 with npm 6.4.1 and linaria 1.0.0-beta.2 see package.json

[satya164]

Thanks a lot for the report. I did some investigation and it's because we are (unnecessarily) transpiling modules under /node_modules/. I just sent a PR which excludes /node_modules/ by default and adds a config option to customize it. #287

Please try it and let me know if it improves the perf for you. I tested it locally and the slowdown is gone.

[steffenmllr]

Look much better. Saw that you missed the default ignore in https://github.com/callstack/linaria/pull/287/files#r245486139. When I added the node_modules regexp re-compilation is down to a couple of 100ms. The initial load time also went down to about 5-6sek.

Thank you! Looking forward to seeing this released!