From fdced17e1fb1f1cf00486383d5a90f45987c66b6 Mon Sep 17 00:00:00 2001
From: Guillaume Gomez <guillaume1.gomez@gmail.com>
Date: Fri, 7 Nov 2025 12:35:12 +0100
Subject: [PATCH] [bootstrap] Make `--open` option work with `doc
 src/tools/error_index_generator`

---
 src/bootstrap/src/core/build_steps/doc.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/bootstrap/src/core/build_steps/doc.rs b/src/bootstrap/src/core/build_steps/doc.rs
index 6622aae069d5c..d6d6fc67ba5ae 100644
--- a/src/bootstrap/src/core/build_steps/doc.rs
+++ b/src/bootstrap/src/core/build_steps/doc.rs
@@ -1228,9 +1228,12 @@ impl Step for ErrorIndex {
         t!(fs::create_dir_all(&out));
         tool::ErrorIndex::command(builder, self.compilers)
             .arg("html")
-            .arg(out)
+            .arg(&out)
             .arg(&builder.version)
             .run(builder);
+
+        let index = out.join("error-index.html");
+        builder.maybe_open_in_browser::<Self>(index);
     }
 
     fn metadata(&self) -> Option<StepMetadata> {