Add mailmap.file as configurational option for mailmap location

This allows us to augment the repo mailmap file, and to use
mailmap files elsewhere than the repository root. Meaning
that the entries in mailmap.file will override the entries
in "./.mailmap", should they match.

Signed-off-by: Marius Storm-Olsen <marius@trolltech.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 109 insertions, 0 deletions

diff --git a/t/t4203-mailmap.sh b/t/t4203-mailmap.sh
new file mode 100755
index 0000000000..fc50ac22e3
--- /dev/null
+++ b/t/t4203-mailmap.sh
@@ -0,0 +1,109 @@
+#!/bin/sh
+
+test_description='.mailmap configurations'
+
+. ./test-lib.sh
+
+test_expect_success setup '
+	echo one >one &&
+	git add one &&
+	test_tick &&
+	git commit -m initial &&
+	echo two >>one &&
+	git add one &&
+	git commit --author "nick1 <bugs@company.xx>" -m second
+'
+
+cat >expect <<\EOF
+A U Thor (1):
+      initial
+
+nick1 (1):
+      second
+
+EOF
+
+test_expect_success 'No mailmap' '
+	git shortlog HEAD >actual &&
+	test_cmp expect actual
+'
+
+cat >expect <<\EOF
+Repo Guy (1):
+      initial
+
+nick1 (1):
+      second
+
+EOF
+
+test_expect_success 'default .mailmap' '
+	echo "Repo Guy <author@example.com>" > .mailmap &&
+	git shortlog HEAD >actual &&
+	test_cmp expect actual
+'
+
+# Using a mailmap file in a subdirectory of the repo here, but
+# could just as well have been a file outside of the repository
+cat >expect <<\EOF
+Internal Guy (1):
+      second
+
+Repo Guy (1):
+      initial
+
+EOF
+test_expect_success 'mailmap.file set' '
+	mkdir internal_mailmap &&
+	echo "Internal Guy <bugs@company.xx>" > internal_mailmap/.mailmap &&
+	git config mailmap.file internal_mailmap/.mailmap &&
+	git shortlog HEAD >actual &&
+	test_cmp expect actual
+'
+
+cat >expect <<\EOF
+External Guy (1):
+      initial
+
+Internal Guy (1):
+      second
+
+EOF
+test_expect_success 'mailmap.file override' '
+	echo "External Guy <author@example.com>" >> internal_mailmap/.mailmap &&
+	git config mailmap.file internal_mailmap/.mailmap &&
+	git shortlog HEAD >actual &&
+	test_cmp expect actual
+'
+
+cat >expect <<\EOF
+Repo Guy (1):
+      initial
+
+nick1 (1):
+      second
+
+EOF
+
+test_expect_success 'mailmap.file non-existant' '
+	rm internal_mailmap/.mailmap &&
+	rmdir internal_mailmap &&
+	git shortlog HEAD >actual &&
+	test_cmp expect actual
+'
+
+cat >expect <<\EOF
+A U Thor (1):
+      initial
+
+nick1 (1):
+      second
+
+EOF
+test_expect_success 'No mailmap files, but configured' '
+	rm .mailmap &&
+	git shortlog HEAD >actual &&
+	test_cmp expect actual
+'
+
+test_done