# HG changeset patch
# User Raphaël Gomès <rgomes@octobus.net>
# Date 2020-05-12 10:41:28
# Node ID dc60ba32d43b19938c952dec6942a1ece03068e9
# Parent  63edfea7dfdeeb4c771060b74fae39a4f350dee5

rust-status: don't dispatch unknown file when traversing if not listing unknowns

This usually isn't a (functional) problem since we ignore the unknown files
anyway, but when specifically using `hg purge`, unknown files were iterated over
regardless of the option being true.
This is both more correct and more efficient.

Differential Revision: https://phab.mercurial-scm.org/D8517

diff --git a/rust/hg-core/src/dirstate/status.rs b/rust/hg-core/src/dirstate/status.rs
--- a/rust/hg-core/src/dirstate/status.rs
+++ b/rust/hg-core/src/dirstate/status.rs
@@ -371,9 +371,11 @@ fn handle_traversed_entry<'a>(
                         .unwrap();
                 }
             } else {
-                files_sender
-                    .send(Ok((filename.to_owned(), Dispatch::Unknown)))
-                    .unwrap();
+                if options.list_unknown {
+                    files_sender
+                        .send(Ok((filename.to_owned(), Dispatch::Unknown)))
+                        .unwrap();
+                }
             }
         } else if ignore_fn(&filename) && options.list_ignored {
             files_sender