Re: [PATCH v3 0/4] Add support for mailmap in cat-file

Junio C Hamano [off-list ref] writes:

The cat-file tests does not have to use the "map" file to do its
thing at all.  In fact, these tests prepare their own .mailmap file
inside them.  But because it chose to run in the history prepared by
previous tests, it broke, because without SYMLINKS, the sought-for
commit does not get created.

So, an alternative solution is to keep the existing tests on
symlinks totally unrelated to these new tests.  These cat-file tests
can prepare the commit to munge at the beginning of the sequence,
and then do its thing.  This way, a platform without symlink support
does not have to create the "map" file that nobody uses, something
like the attached.

I do not have strong preference either way, though.

 t/t4203-mailmap.sh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git c/t/t4203-mailmap.sh w/t/t4203-mailmap.sh
index c60a90615c..cd1cab3e54 100755
--- c/t/t4203-mailmap.sh
+++ w/t/t4203-mailmap.sh

@@ -963,6 +963,11 @@ test_expect_success SYMLINKS 'symlinks not respected in-tree' '
 	test_cmp expect actual
 '
 
+test_expect_success 'prepare for cat-file --mailmap' '
+	rm -f .mailmap &&
+	git commit --allow-empty -m foo --author="Orig <orig@example.com>"
+'
+
 test_expect_success '--no-use-mailmap disables mailmap in cat-file' '
 	test_when_finished "rm .mailmap" &&
 	cat >.mailmap <<-EOF &&