# HG changeset patch
# User Arseniy Alekseyev <aalekseyev@janestreet.com>
# Date 2023-02-17 13:29:39
# Node ID 6ea3b1acb5de12a7f44d9bc562894113914660c4
# Parent  4180c988d1d5b2d31fd7c51e14c541dfc216fa9f

rhg: in path_encode, be a bit more conservative about memory usage

Use [shrink_to_fit] to match the previous behavior more closely,
and potentially save (a tiny bit) of memory.

FWIW, I suspect this is unnecessary, but this whole MR is
about simplifying things while preserving any existing
optimizations.

diff --git a/rust/hg-core/src/revlog/path_encode.rs b/rust/hg-core/src/revlog/path_encode.rs
--- a/rust/hg-core/src/revlog/path_encode.rs
+++ b/rust/hg-core/src/revlog/path_encode.rs
@@ -576,6 +576,7 @@ fn hash_mangle(src: &[u8], sha: &[u8]) -
     if let Some(l) = last_dot {
         dest.write_bytes(&src[l..]);
     }
+    dest.shrink_to_fit();
     dest
 }