pnpm catalog protocol support

[mmellado]

• I have searched for similar issues

Note

This is more of a feature request to support the new pnpm catalogs feature, which is a new way to specify dependency versions

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Steps to Reproduce

run ncu

Current Behavior

Dependencies listed under the catalog key in pnpm-workspace.yaml are ignored

Expected Behavior

Account for, list, and provide the option to udpate catalog versions listed in pnpm-workspace.yaml

[TylerNRobertson]

Would be great to see this added!

[hilja]

Btw, renovate catalog implementation renovatebot/renovate#33376

[fpapado]

Heya 👋 I implemented catalogs support in Renovate. I would be happy to contribute support for catalogs in ncu, if the maintainers think this is worthwhile.

I tried to look through the contribution guide and other issues, to understand the process and avoid stepping on anyone's toes, if they have started working on it. I didn't find any assignees, so I will wait for a bit and pick this up next week.

I might have some nitty-gritty questions about supporting package files aside from package.json (since catalogs use pnpm-workspace.yaml). I can put those in a draft PR if you prefer 😌

[raineorshine]

Adding support for the catalog: protocol would be a welcome feature. It does not increase the complexity of the tool or the surface area of the API, so it fits within npm-check-updates' design philosophy. And the upvotes indicate that this would be helpful to many. I would be happy to provide guidance on where things are in the codebase.

FYI Workspace packages are read in from pnpm-workspace.yaml in getAllPackages and pnpm workspace unit tests are in workspace.test.ts.

[fpapado]

Thank you kindly for the context and the practical info! I'll take this to my to-do list then 🗒