Add debug logging for --target (#3282)

crates/uv/src/commands/pip_install.rs

@@ -135,6 +135,10 @@ pub(crate) async fn pip_install(
 
     // Apply any `--target` directory.
     let venv = if let Some(target) = target {
+        debug!(
+            "Using `--target` directory at {}",
+            target.root().user_display()
+        );
         target.init()?;
         venv.with_target(target)
     } else {

crates/uv/src/commands/pip_sync.rs

@@ -115,6 +115,10 @@ pub(crate) async fn pip_sync(
 
     // Apply any `--target` directory.
     let venv = if let Some(target) = target {
+        debug!(
+            "Using `--target` directory at {}",
+            target.root().user_display()
+        );
         target.init()?;
         venv.with_target(target)
     } else {

crates/uv/src/commands/pip_uninstall.rs

@@ -57,6 +57,10 @@ pub(crate) async fn pip_uninstall(
 
     // Apply any `--target` directory.
     let venv = if let Some(target) = target {
+        debug!(
+            "Using `--target` directory at {}",
+            target.root().user_display()
+        );
         target.init()?;
         venv.with_target(target)
     } else {