Caching npm install

[nathany]

Are there plans to add caching for GitHub Actions? For example, in CircleCI we can greatly reduce the number of VM minutes spent with something like this:

- save_cache:
    key: v1-npm-dependency-cache-{{ checksum "package-lock.json" }}
    paths:
      - node_modules

(and the corresponding restore_cache).

I saw a tools cache for caching the Node.js download, but I'm not sure if that should be used for this.

[damccorm]

The tool cache thing is a different concept and won't persist across builds.

Right now, we don't have exactly what you're looking for. With that being said, this is high on our backlog and something that I think lots of people want (self included 😄). We're tracking this in the toolkit, so for cleanliness I'd probably prefer we close this issue here and follow up there - seem fair?

[nathany]

Fair enough. Sorry I didn't search that repo for issues in advance.

[damccorm]

No worries, opening an issue in this repo was perfectly reasonable - happy to give a pointer in the right direction!