Add a toplevel .mailmap file

See "Proposal: Adding a toplevel .mailmap file" on llvm-dev:
https://lists.llvm.org/pipermail/llvm-dev/2021-May/150741.html

Differential Revision: https://reviews.llvm.org/D103360

diff --git a/.mailmap b/.mailmap
new file mode 100644 (file)
index 0000000..3c023ee
--- /dev/null
+++ b/.mailmap
@@ -0,0 +1,23 @@
+# This file allows mapping several author and committer email addresses and
+# names to a single canonical one for `git shortlog`, `git log --author`,
+# or `git check-mailmap`.
+#
+# For example, if you commit as `random.person@example.com` but sometimes use
+# "Rañdom Person" and sometimes "Random Person" as name and you want the former
+# to be your canonical name, add
+#
+#     Rañdom Person <random.person@example.com>
+#
+# If you commit as both `random.person@example.com` and `ranp@example.com` and
+# you want the former to be your canonical email address, add
+#
+#     <random.person@example.com> <ranp@example.com>
+#
+# Combinations of both are possible too, see
+# https://git-scm.com/docs/gitmailmap for format details.
+#
+# You can commit changes for your own names and  email addresses without review.
+# If you want to add entries for other people, please have them review the
+# addition.
+#
+# Please keep this file sorted.