Avoid reading stale .egg-info from mutable sources

crates/distribution-types/src/buildable.rs

@@ -56,6 +56,14 @@ impl BuildableSource<'_> {
  Self::Url(url) => url.is_editable(),
  }
  }
+
+ /// Return true if the source refers to a local source tree (i.e., a directory).
+ pub fn is_source_tree(&self) -> bool {
+ match self {
+ Self::Dist(dist) => matches!(dist, SourceDist::Directory(_)),
+ Self::Url(url) => matches!(url, SourceUrl::Directory(_)),
+ }
+ }
 }
 
 impl std::fmt::Display for BuildableSource<'_> {
@@ -94,6 +102,11 @@ impl<'a> SourceUrl<'a> {
  Self::Directory(DirectorySourceUrl { editable: true, .. })
  )
  }
+
+ /// Return true if the source refers to a local file or directory.
+ pub fn is_local(&self) -> bool {
+ matches!(self, Self::Path(_) | Self::Directory(_))
+ }
 }
 
 impl std::fmt::Display for SourceUrl<'_> {

crates/uv-distribution/src/source/mod.rs

@@ -1529,6 +1529,12 @@ impl<'a, T: BuildContext> SourceDistributionBuilder<'a, T> {
  Err(err) => return Err(err),
  }
 
+ // If the source distribution is a source tree, avoid reading `PKG-INFO` or `egg-info`,
+ // since they could be out-of-date.
+ if source.is_source_tree() {
+ return Ok(None);
+ }
+
  // Attempt to read static metadata from the `PKG-INFO` file.
  match read_pkg_info(source_root, subdirectory).await {
  Ok(metadata) => {

crates/uv/tests/pip_install.rs

@@ -6386,3 +6386,72 @@ fn switch_platform() -> Result<()> {
 
  Ok(())
 }
+
+/// See: <https:/astral-sh/uv/pull/6714>
+#[test]
+fn stale_egg_info() -> Result<()> {
+ let context = TestContext::new("3.12");
+
+ // Create a project with dynamic metadata (version).
+ let pyproject_toml = context.temp_dir.child("pyproject.toml");
+ pyproject_toml.write_str(indoc! {r#"
+ [project]
+ name = "project"
+ dynamic = ["version"]
+
+ dependencies = ["iniconfig"]
+ "#
+ })?;
+
+ uv_snapshot!(context.filters(), context.pip_install()
+ .arg("-e")
+ .arg("."), @r###"
+ success: true
+ exit_code: 0
+ ----- stdout -----
+
+ ----- stderr -----
+ Resolved 2 packages in [TIME]
+ Prepared 2 packages in [TIME]
+ Installed 2 packages in [TIME]
+ + iniconfig==2.0.0
+ + project==0.0.0 (from file://[TEMP_DIR]/)
+ "###
+ );
+
+ // Ensure that `.egg-info` exists.
+ let egg_info = context.temp_dir.child("project.egg-info");
+ egg_info.assert(predicates::path::is_dir());
+
+ // Change the metadata.
+ pyproject_toml.write_str(indoc! {r#"
+ [project]
+ name = "project"
+ dynamic = ["version"]
+
+ dependencies = ["anyio"]
+ "#
+ })?;
+
+ // Reinstall. Ensure that the metadata is updated.
+ uv_snapshot!(context.filters(), context.pip_install()
+ .arg("-e")
+ .arg("."), @r###"
+ success: true
+ exit_code: 0
+ ----- stdout -----
+
+ ----- stderr -----
+ Resolved 4 packages in [TIME]
+ Prepared 4 packages in [TIME]
+ Uninstalled 1 package in [TIME]
+ Installed 4 packages in [TIME]
+ + anyio==4.3.0
+ + idna==3.6
+ ~ project==0.0.0 (from file://[TEMP_DIR]/)
+ + sniffio==1.3.1
+ "###
+ );
+
+ Ok(())
+}