uv/crates/uv-cache
konsti 00aa2ab672
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Make uv cache clean parallel process safe (#15888)
Currently, `uv cache clean` and `uv cache prune` can cause crashes in
other uv processes running in parallel by removing their in-use files.

We can solve this by using a shared (read) lock on the cache directory,
while the `uv cache` operations use an exclusive (write) lock. The
drawback is that this is always one extra lock, and that we assume that
all platforms support shared locks.

Once Rust 1.89 fulfills our N-2 policy, we can add support for these
methods in fs_err and switch to
https://doc.rust-lang.org/std/fs/struct.File.html#platform-specific-behavior-2.

**Test Plan**

Open one terminal, run:

```
uv venv -c -p 3.13
UV_CACHE_DIR=cache uv cache clean
UV_CACHE_DIR=cache uv pip install numpy==2.0.0
```

Open another terminal, run:

```
UV_CACHE_DIR=cache uv cache clean
```

Fixes #15704
Part of #13883
2025-09-19 10:21:22 +02:00
..
src Make uv cache clean parallel process safe (#15888) 2025-09-19 10:21:22 +02:00
Cargo.toml Add DisplaySafeUrl newtype to prevent leaking of credentials by default (#13560) 2025-05-27 00:05:30 +02:00