uv cache prune causes self update to fail

[weihenglim]

On Windows, running uv cache prune removes uv-receipt.json from the cache, which leads to uv being unable to self update:

>uv cache prune -v
DEBUG uv 0.3.0
Pruning cache at: C:\Users\User\AppData\Local\uv
DEBUG Removing dangling cache entry: C:\Users\User\AppData\Local\uv\uv-receipt.json
Removed 1 file (253B)

>uv self update -v
DEBUG uv 0.3.0
DEBUG no receipt found; assuming uv was installed via a package manager
warning: Self-update is only available for uv binaries installed via the standalone installation scripts.

[charliermarsh]

Ohh, thanks. That's interesting.

[charliermarsh]

Did you move the cache at all? I think the cache by default is at C:\Users\User\AppData\Local\uv\cache.

[weihenglim]

No, nothing was configured. Just tested a fresh install on another Windows 11 machine and the cache directory defaults to AppData\Local\uv as well.

>powershell -c "irm https://astral.sh/uv/install.ps1 | iex"
Downloading uv 0.3.1 (x86_64-pc-windows-msvc)
Installing to C:\Users\Admin\.cargo\bin
  uv.exe
  uvx.exe
everything's installed!

>uv cache dir -v
DEBUG uv 0.3.1
C:\Users\Admin\AppData\Local\uv

[charliermarsh]

Ahh sorry, I think the cache directory changed slightly in v0.3.0.

[charliermarsh]

(But in a backwards-compatible way, so my machine was still using the previous location.)

[weihenglim]

As a temporary workaround, manually moving all the files (except uv-receipt.json) to AppData\Local\uv\cache seems to fix the issue (and uv cache dir properly detects the new cache location)

[charliermarsh]

Yeah, that makes sense. Will fix though.