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More precise locking with --prefix option (#4506)

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## Summary

In #4085, support was implemented for the `--prefix` option. When using
this option, however, a lock is either acquired on the virtualenv or
globally, preventing multiple installs to different `--prefix`s from the
same interpreter.

In this change, acquire the lock on just the prefix in question.

## Test Plan

Ran a `uv pip install` with `--prefix` and `RUST_LOG=trace` and observed
that the lock was acquired in the prefix.
This commit is contained in:
Eric Mark Martin 2024-06-25 06:47:52 -04:00 • committed by GitHub
parent ddacede7db
commit 967f136564
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3
crates/uv-toolchain/src/environment.rs
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@ -160,6 +160,9 @@ impl PythonEnvironment {
if let Some(target) = self.0.interpreter.target() {
// If we're installing into a `--target`, use a target-specific lock file.
LockedFile::acquire(target.root().join(".lock"), target.root().user_display())
} else if let Some(prefix) = self.0.interpreter.prefix() {
// Likewise, if we're installing into a `--prefix`, use a prefix-specific lock file.
LockedFile::acquire(prefix.root().join(".lock"), prefix.root().user_display())
} else if self.0.interpreter.is_virtualenv() {
// If the environment a virtualenv, use a virtualenv-specific lock file.
LockedFile::acquire(self.0.root.join(".lock"), self.0.root.user_display())