Optional peer dependency cause unmet warning

[kingyue737]

Verify latest release

• I verified that the issue exists in the latest pnpm release

pnpm version

No response

Which area(s) of pnpm are affected? (leave empty if unsure)

Dependencies resolver

Link to the code that reproduces this issue or a replay of the bug

https://stackblitz.com/edit/vitejs-vite-sttob6

Reproduction steps

Enter the repro link and run pnpm v9 (which is a script to install dependencies with v9 instead of default v8 in stackblitz).

Describe the Bug

The following error will be printed

    └─┬ vite-plugin-checker 0.6.4
      └── ✕ unmet peer meow@^9.0.0: found 13.2.0

Expected Behavior

Should not have unmet warning as meow is an optional dependency of vite-plugin-checker

No warning in pnpm v8

Which Node.js version are you using?

v20.11.1

Which operating systems have you used?

• macOS
• Windows
• Linux

If your OS is a Linux based, which one it is? (Include the version if relevant)

No response

[zkochan]

meow 13 is in the dependencies of browserslist-to-esbuild@2.1.1 and is used to resolve the optional peer of vite-plugin-checker.

[kingyue737]

Pnpm v8 didn't give this warning. Thus is it an issue of v8 instead of v9? How to let vite-plugin-checker ignore meow which is not required?

[zkochan]

I'll think about it. Maybe we should change how it works in v9. Maybe we should hoist optional peer dependencies only if they match the range.