fix: constrain external grep ignore ancestor matching

2026-09-30 13:58:39 +09:00
parent 699a3c051c
commit cbf1b83599
2 changed files with 43 additions and 2 deletions
@@ -282,9 +282,10 @@ impl DescriptorIgnoreMatchers {
        let matcher = builder.build().map_err(|_| {
            FsError::InvalidArgument("ignore patterns could not be compiled".to_string())
        })?;
-        // An explicitly selected search root is traversed even when an ancestor
-        // ignores that directory, matching path-backed Grep behavior.
+        // An explicitly selected search root is traversed even when a strict
+        // ancestor ignores that directory, matching path-backed Grep behavior.
        if directory != explicit_base
+            && explicit_base.starts_with(directory)
            && matcher
                .matched_path_or_any_parents(explicit_base, true)
                .is_ignore()