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Allow package lookups across multiple indexes via explicit opt-in (#2815)

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## Summary

This partially revives https://github.com/astral-sh/uv/pull/2135 (with
some modifications) to enable users to opt-in to looking for packages
across multiple indexes.

The behavior is such that, in version selection, we take _any_
compatible version from a "higher-priority" index over the compatible
versions of a "lower-priority" index, even if that means we might accept
an "older" version.

Closes https://github.com/astral-sh/uv/issues/2775.
This commit is contained in:
Charlie Marsh 2024-04-03 19:23:37 -04:00 • committed by GitHub
parent e0d55ef496
commit 34341bd6e9
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23 changed files with 351 additions and 106 deletions
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17
crates/uv-resolver/src/error.rs
View file

@ -209,14 +209,15 @@ impl NoSolutionError {
// we represent the state of the resolver at the time of failure.
if visited.contains(name) {
if let Some(response) = package_versions.get(name) {
if let VersionsResponse::Found(ref version_map) = *response {
available_versions.insert(
package.clone(),
version_map
.iter()
.map(|(version, _)| version.clone())
.collect(),
);
if let VersionsResponse::Found(ref version_maps) = *response {
for version_map in version_maps {
available_versions
.entry(package.clone())
.or_insert_with(BTreeSet::new)
.extend(
version_map.iter().map(|(version, _)| version.clone()),
);
}
}
}
}