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lucab wants to merge 1 commit into from
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Improve same-interpreter detection logic #7593

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1 change: 1 addition & 0 deletions Cargo.lock
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1 change: 1 addition & 0 deletions crates/uv/Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,7 @@ owo-colors = { workspace = true }
rayon = { workspace = true }
regex = { workspace = true }
rustc-hash = { workspace = true }
same-file = { workspace = true }
serde = { workspace = true }
serde_json = { workspace = true }
tempfile = { workspace = true }
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18 changes: 15 additions & 3 deletions crates/uv/src/commands/tool/install.rs
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Expand Up @@ -276,13 +276,25 @@ pub(crate) async fn install(
installed_tools
.get_environment(&from.name, &cache)?
.filter(|environment| {
let same_interpreter: bool;

// NOTE(lucab): this compares `base_prefix` paths as a proxy for
// detecting interpreters mismatches. Directly comparing interpreters
// (by paths or binaries on-disk) would result in several false
// positives on Windows due to file-copying and shims.
let old_base_prefix = environment.interpreter().sys_base_prefix();
let selected_base_prefix = interpreter.sys_base_prefix();
if old_base_prefix == selected_base_prefix {
#[cfg(target_os="windows")]
{
let old_base_prefix = environment.interpreter().sys_base_prefix();
let selected_base_prefix = interpreter.sys_base_prefix();
same_interpreter = old_base_prefix == selected_base_prefix;
}
#[cfg(not(target_os="windows"))]
{
same_interpreter = environment.interpreter().sys_executable() == interpreter.sys_executable()
|| same_file::is_same_file(environment.interpreter().sys_executable(), interpreter.sys_executable()).unwrap_or(false);
}

if same_interpreter {
trace!(
"Existing interpreter matches the requested interpreter for `{}`: {}",
from.name,
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