uvx warn when no executables are available

crates/uv/src/commands/tool/run.rs

@@ -158,7 +158,17 @@ pub(crate) async fn run(
                         "The executable `{}` was not found.",
                         executable.to_string_lossy().cyan(),
                     )?;
-                    if !entrypoints.is_empty() {
+                    if entrypoints.is_empty() {
+                        warn_user!(
+                            "Package `{}` does not provide any executables.",
+                            from.name.red()
+                        );
+                    } else {
+                        warn_user!(
+                            "An executable named `{}` is not provided by package `{}`.",
+                            executable.to_string_lossy().cyan(),
+                            from.name.red()
+                        );
                         writeln!(
                             printer.stdout(),
                             "The following executables are provided by `{}`:",
@@ -230,13 +240,7 @@ fn warn_executable_not_provided_by_package(
             .any(|package| package.name() == from_package)
         {
             match packages.as_slice() {
-                [] => {
-                    warn_user!(
-                        "An executable named `{}` is not provided by package `{}`.",
-                        executable.cyan(),
-                        from_package.red()
-                    );
-                }
+                [] => {}
                 [package] => {
                     let suggested_command = format!(
                         "{invocation_source} --from {} {}",

crates/uv/tests/tool_run.rs

@@ -247,7 +247,7 @@ fn tool_run_suggest_valid_commands() {
      + fastapi-cli==0.0.1
      + importlib-metadata==1.7.0
      + zipp==3.18.1
-    warning: An executable named `fastapi-cli` is not provided by package `fastapi-cli`.
+    warning: Package `fastapi-cli` does not provide any executables.
     "###);
 }
 
@@ -835,3 +835,32 @@ fn tool_run_without_output() {
     warning: `uv tool run` is experimental and may change without warning
     "###);
 }
+
+#[test]
+fn warn_no_executables_found() {
+    let context = TestContext::new("3.12").with_filtered_exe_suffix();
+    let tool_dir = context.temp_dir.child("tools");
+    let bin_dir = context.temp_dir.child("bin");
+
+    uv_snapshot!(context.filters(), context.tool_run()
+        .arg("requests")
+        .env("UV_TOOL_DIR", tool_dir.as_os_str())
+        .env("XDG_BIN_HOME", bin_dir.as_os_str()), @r###"
+    success: false
+    exit_code: 1
+    ----- stdout -----
+    The executable `requests` was not found.
+
+    ----- stderr -----
+    warning: `uv tool run` is experimental and may change without warning
+    Resolved 5 packages in [TIME]
+    Prepared 5 packages in [TIME]
+    Installed 5 packages in [TIME]
+     + certifi==2024.2.2
+     + charset-normalizer==3.3.2
+     + idna==3.6
+     + requests==2.31.0
+     + urllib3==2.2.1
+    warning: Package `requests` does not provide any executables.
+    "###);
+}