Merge 73e68d119c into 0a83bf7dd5

crates/uv/src/lib.rs

@@ -99,6 +99,29 @@ async fn run(mut cli: Cli) -> Result<ExitStatus> {
         .map(Cow::Owned)
         .unwrap_or_else(|| Cow::Borrowed(&*CWD));
 
+    // Validate that the project directory exists if explicitly provided via --project.
+    let skip_project_validation = matches!(
+        &*cli.command,
+        Commands::Project(command) if matches!(**command, ProjectCommand::Init(_))
+    );
+
+    if !skip_project_validation {
+        if let Some(project_path) = cli.top_level.global_args.project.as_ref() {
+            if !project_dir.exists() {
+                bail!(
+                    "Project directory `{}` does not exist",
+                    project_path.user_display()
+                );
+            }
+            if !project_dir.is_dir() {
+                bail!(
+                    "Project path `{}` is not a directory",
+                    project_path.user_display()
+                );
+            }
+        }
+    }
+
     // Load environment variables not handled by Clap
     let environment = EnvironmentOptions::new()?;
 

crates/uv/tests/it/run.rs

@@ -6092,3 +6092,39 @@ fn run_only_group_and_extra_conflict() -> Result<()> {
 
     Ok(())
 }
+
+#[test]
+fn run_project_not_found() {
+    let context = TestContext::new("3.12");
+
+    // Using --project with a non-existent directory should error.
+    uv_snapshot!(context.filters(), context.run().arg("--project").arg("/tmp/does-not-exist-uv-test").arg("python").arg("-c").arg("print('hello')"), @r###"
+    success: false
+    exit_code: 2
+    ----- stdout -----
+
+    ----- stderr -----
+    error: Project directory `/tmp/does-not-exist-uv-test` does not exist
+    "###);
+}
+
+#[test]
+fn run_project_is_file() -> Result<()> {
+    let context = TestContext::new("3.12");
+
+    // Create a file instead of a directory.
+    let file_path = context.temp_dir.child("not-a-directory");
+    file_path.write_str("")?;
+
+    // Using --project with a file path should error.
+    uv_snapshot!(context.filters(), context.run().arg("--project").arg(file_path.path()).arg("python").arg("-c").arg("print('hello')"), @r###"
+    success: false
+    exit_code: 2
+    ----- stdout -----
+
+    ----- stderr -----
+    error: Project path `not-a-directory` is not a directory
+    "###);
+
+    Ok(())
+}