builtin: add git-check-mailmap command
Introduce command check-mailmap, similar to check-attr and check-ignore,
which allows direct testing of .mailmap configuration.
As plumbing accessible to scripts and other porcelain, check-mailmap
publishes the stable, well-tested .mailmap functionality employed by
built-in Git commands. Consequently, script authors need not
re-implement .mailmap functionality manually, thus avoiding potential
quirks and behavioral differences.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/.gitignore b/.gitignore
index c0e00eb..6230097 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,6 +23,7 @@
/git-cat-file
/git-check-attr
/git-check-ignore
+/git-check-mailmap
/git-check-ref-format
/git-checkout
/git-checkout-index
