Add Git resolver in lieu of static hash map (astral-sh#3954)

## Summary

This PR removes the static resolver map:

```rust
static RESOLVED_GIT_REFS: Lazy<Mutex<FxHashMap<RepositoryReference, GitSha>>> =
    Lazy::new(Mutex::default);
```

With a `GitResolver` struct that we now pass around on the
`BuildContext`. There should be no behavior changes here; it's purely an
internal refactor with an eye towards making it cleaner for us to
"pre-populate" the list of resolved SHAs.

crates/bench/Cargo.toml

@@ -39,6 +39,7 @@ uv-client = { workspace = true }
 uv-configuration = { workspace = true }
 uv-dispatch = { workspace = true }
 uv-distribution = { workspace = true }
+uv-git = { workspace = true }
 uv-interpreter = { workspace = true }
 uv-resolver = { workspace = true }
 uv-types = { workspace = true }

crates/bench/benches/uv.rs

@@ -85,6 +85,7 @@ mod resolver {
     };
     use uv_dispatch::BuildDispatch;
     use uv_distribution::DistributionDatabase;
+    use uv_git::GitResolver;
     use uv_interpreter::PythonEnvironment;
     use uv_resolver::{
         FlatIndex, InMemoryIndex, Manifest, Options, PythonRequirement, ResolutionGraph, Resolver,
@@ -124,17 +125,18 @@ mod resolver {
         client: &RegistryClient,
         venv: &PythonEnvironment,
     ) -> Result<ResolutionGraph> {
+        let build_isolation = BuildIsolation::Isolated;
+        let concurrency = Concurrency::default();
+        let config_settings = ConfigSettings::default();
         let flat_index = FlatIndex::default();
-        let index = InMemoryIndex::default();
+        let git = GitResolver::default();
         let hashes = HashStrategy::None;
-        let index_locations = IndexLocations::default();
         let in_flight = InFlight::default();
+        let index = InMemoryIndex::default();
+        let index_locations = IndexLocations::default();
         let installed_packages = EmptyInstalledPackages;
         let interpreter = venv.interpreter().clone();
         let python_requirement = PythonRequirement::from_marker_environment(&interpreter, &MARKERS);
-        let concurrency = Concurrency::default();
-        let config_settings = ConfigSettings::default();
-        let build_isolation = BuildIsolation::Isolated;
 
         let build_context = BuildDispatch::new(
             client,
@@ -143,6 +145,7 @@ mod resolver {
             &index_locations,
             &flat_index,
             &index,
+            &git,
             &in_flight,
             SetupPyStrategy::default(),
             &config_settings,

crates/uv-dev/Cargo.toml

@@ -25,9 +25,10 @@ uv-build = { workspace = true }
 uv-cache = { workspace = true, features = ["clap"] }
 uv-client = { workspace = true }
 uv-configuration = { workspace = true }
-uv-distribution = { workspace = true, features = ["schemars"] }
 uv-dispatch = { workspace = true }
+uv-distribution = { workspace = true, features = ["schemars"] }
 uv-fs = { workspace = true }
+uv-git = { workspace = true }
 uv-installer = { workspace = true }
 uv-interpreter = { workspace = true }
 uv-resolver = { workspace = true }

crates/uv-dev/src/build.rs

@@ -14,6 +14,7 @@ use uv_configuration::{
     BuildKind, Concurrency, ConfigSettings, NoBinary, NoBuild, PreviewMode, SetupPyStrategy,
 };
 use uv_dispatch::BuildDispatch;
+use uv_git::GitResolver;
 use uv_interpreter::PythonEnvironment;
 use uv_resolver::{FlatIndex, InMemoryIndex};
 use uv_types::{BuildContext, BuildIsolation, InFlight};
@@ -55,15 +56,16 @@ pub(crate) async fn build(args: BuildArgs) -> Result<PathBuf> {
 
     let cache = Cache::try_from(args.cache_args)?.init()?;
 
-    let venv = PythonEnvironment::from_virtualenv(&cache)?;
     let client = RegistryClientBuilder::new(cache.clone()).build();
-    let index_urls = IndexLocations::default();
+    let concurrency = Concurrency::default();
+    let config_settings = ConfigSettings::default();
     let flat_index = FlatIndex::default();
+    let git = GitResolver::default();
+    let in_flight = InFlight::default();
     let index = InMemoryIndex::default();
+    let index_urls = IndexLocations::default();
     let setup_py = SetupPyStrategy::default();
-    let in_flight = InFlight::default();
-    let config_settings = ConfigSettings::default();
-    let concurrency = Concurrency::default();
+    let venv = PythonEnvironment::from_virtualenv(&cache)?;
 
     let build_dispatch = BuildDispatch::new(
         &client,
@@ -72,6 +74,7 @@ pub(crate) async fn build(args: BuildArgs) -> Result<PathBuf> {
         &index_urls,
         &flat_index,
         &index,
+        &git,
         &in_flight,
         setup_py,
         &config_settings,

crates/uv-dispatch/Cargo.toml

@@ -22,6 +22,7 @@ uv-cache = { workspace = true }
 uv-client = { workspace = true }
 uv-configuration = { workspace = true }
 uv-distribution = { workspace = true }
+uv-git = { workspace = true }
 uv-installer = { workspace = true }
 uv-interpreter = { workspace = true }
 uv-resolver = { workspace = true }

crates/uv-dispatch/src/lib.rs

@@ -19,6 +19,7 @@ use uv_client::RegistryClient;
 use uv_configuration::{BuildKind, ConfigSettings, NoBinary, NoBuild, Reinstall, SetupPyStrategy};
 use uv_configuration::{Concurrency, PreviewMode};
 use uv_distribution::DistributionDatabase;
+use uv_git::GitResolver;
 use uv_installer::{Downloader, Installer, Plan, Planner, SitePackages};
 use uv_interpreter::{Interpreter, PythonEnvironment};
 use uv_resolver::{FlatIndex, InMemoryIndex, Manifest, Options, PythonRequirement, Resolver};
@@ -33,6 +34,7 @@ pub struct BuildDispatch<'a> {
     index_locations: &'a IndexLocations,
     flat_index: &'a FlatIndex,
     index: &'a InMemoryIndex,
+    git: &'a GitResolver,
     in_flight: &'a InFlight,
     setup_py: SetupPyStrategy,
     build_isolation: BuildIsolation<'a>,
@@ -56,6 +58,7 @@ impl<'a> BuildDispatch<'a> {
         index_locations: &'a IndexLocations,
         flat_index: &'a FlatIndex,
         index: &'a InMemoryIndex,
+        git: &'a GitResolver,
         in_flight: &'a InFlight,
         setup_py: SetupPyStrategy,
         config_settings: &'a ConfigSettings,
@@ -73,6 +76,7 @@ impl<'a> BuildDispatch<'a> {
             index_locations,
             flat_index,
             index,
+            git,
             in_flight,
             setup_py,
             config_settings,
@@ -102,6 +106,10 @@ impl<'a> BuildContext for BuildDispatch<'a> {
         self.cache
     }
 
+    fn git(&self) -> &GitResolver {
+        self.git
+    }
+
     fn interpreter(&self) -> &Interpreter {
         self.interpreter
     }
@@ -194,9 +202,9 @@ impl<'a> BuildContext for BuildDispatch<'a> {
             extraneous: _,
         } = Planner::new(&requirements).build(
             site_packages,
-            &Reinstall::None,
-            &NoBinary::None,
-            &HashStrategy::None,
+            &Reinstall::default(),
+            &NoBinary::default(),
+            &HashStrategy::default(),
             self.index_locations,
             self.cache(),
             venv,

crates/uv-distribution/Cargo.toml

@@ -13,7 +13,6 @@ license = { workspace = true }
 workspace = true
 
 [dependencies]
-cache-key = { workspace = true }
 distribution-filename = { workspace = true }
 distribution-types = { workspace = true }
 install-wheel-rs = { workspace = true }
@@ -36,7 +35,6 @@ fs-err = { workspace = true }
 futures = { workspace = true }
 glob = { workspace = true }
 nanoid = { workspace = true }
-once_cell = { workspace = true }
 path-absolutize = { workspace = true }
 reqwest = { workspace = true }
 reqwest-middleware = { workspace = true }

crates/uv-distribution/src/error.rs

@@ -25,8 +25,8 @@ pub enum Error {
     RelativePath(PathBuf),
     #[error(transparent)]
     JoinRelativeUrl(#[from] pypi_types::JoinRelativeError),
-    #[error("Git operation failed")]
-    Git(#[source] anyhow::Error),
+    #[error(transparent)]
+    Git(#[from] uv_git::GitResolverError),
     #[error(transparent)]
     Reqwest(#[from] BetterReqwestError),
     #[error(transparent)]