diff tests/test-copy.t @ 46408:e948ad0dcbe2

copies: add an devel option to trace all files

Filelog based copy tracing only trace copy for file that have been added. This
is a trade off between skipping some rare copy case in exchange for avoiding
atrocious-to-the-point-of-unusable performance.

The changeset centric copy tracing does not need this trade off and naturally
trace all copy, include the one involving non-new files.

In order to ease the comparison from both algorithm, we add a small devel option
to trace copy for all files in the target revisions.

Differential Revision: https://phab.mercurial-scm.org/D9796

--- a/tests/test-copy.t	Thu Jan 28 15:26:33 2021 +0100
+++ b/tests/test-copy.t	Sat Jan 16 00:03:18 2021 +0100
@@ -228,6 +228,17 @@
 should show no copies
   $ hg st -C
 
+note: since filelog based copy tracing only trace copy for new file, the copy information here is not displayed.
+
+  $ hg status --copies --change .
+  M bar
+
+They are a devel option to walk all file and fine this information anyway.
+
+  $ hg status --copies --change . --config devel.copy-tracing.trace-all-files=yes
+  M bar
+    foo
+
 copy --after on an added file
   $ cp bar baz
   $ hg add baz