What gets stored in the Build Cache?

[steelwool]

Hi!
How does Netlify determine what gets cached in the build process? The build step of my static site writes files to the node_modules/.cache/ folder - does Netlify save the state of this folder at the end of the build step? Or should I be using @netlify/cache-utils instead and point that at the node_modules/.cache folder?
Thanks for any info!

[hrishikesh]

This will help: GitHub - netlify-labs/netlify-plugin-debug-cache: Debug & verify the contents of your Netlify build cache

[steelwool]

Thank you - I tried that but no cache-output.json file was generated in my build. And even having that output file doesn’t necessarily explain how Netlify determines what to cache.

[perry]

hi @steelwool ,

i wonder if this is interesting for you:

[Support Guide] Making sure your builds use appropriate resources for Netlify's build system

updated in Dec 2022 Hopefully, your builds at Netlify “just work”, once you have things configured. That’s the intention and the common case, but for those times when your reality falls a bit short of our dream, this article talks in detail about some of the limitations that customers run into while building and how to work around them. The operation of Netlify’s build system is pretty well documented in several places such as: a somewhat conversational “how it works” guide. our official do…

it’s not a perfect answer to your question, but may contain some useful information.

[steelwool]

Thank you, I’l take a look.