#!/bin/sh

test_description='.mailmap configurations'

. ./test-lib.sh

test_expect_success 'setup commits and contacts file' '
	echo one >one &&
	git add one &&
	test_tick &&
	git commit -m initial &&
	echo two >>one &&
	git add one &&
	test_tick &&
	git commit --author "nick1 <bugs@company.xx>" -m second
'

test_expect_success 'check-mailmap no arguments' '
	test_must_fail git check-mailmap
'

test_expect_success 'check-mailmap arguments' '
	cat >expect <<-EOF &&
	$GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL>
	nick1 <bugs@company.xx>
	EOF
	git check-mailmap \
		"$GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL>" \
		"nick1 <bugs@company.xx>" >actual &&
	test_cmp expect actual
'

test_expect_success 'check-mailmap --stdin' '
	cat >expect <<-EOF &&
	$GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL>
	nick1 <bugs@company.xx>
	EOF
	git check-mailmap --stdin <expect >actual &&
	test_cmp expect actual
'

test_expect_success 'check-mailmap --stdin arguments: no mapping' '
	test_when_finished "rm contacts" &&
	cat >contacts <<-EOF &&
	$GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL>
	nick1 <bugs@company.xx>
	EOF
	cat >expect <<-\EOF &&
	Internal Guy <bugs@company.xy>
	EOF
	cat contacts >>expect &&

	git check-mailmap --stdin "Internal Guy <bugs@company.xy>" \
		<contacts >actual &&
	test_cmp expect actual
'

test_expect_success 'check-mailmap --stdin arguments: mapping' '
	test_when_finished "rm .mailmap" &&
	cat >.mailmap <<-EOF &&
	New Name <$GIT_AUTHOR_EMAIL>
	EOF
	cat >stdin <<-EOF &&
	Old Name <$GIT_AUTHOR_EMAIL>
	EOF

	cp .mailmap expect &&
	git check-mailmap --stdin <stdin >actual &&
	test_cmp expect actual &&

	cat .mailmap >>expect &&
	git check-mailmap --stdin "Another Old Name <$GIT_AUTHOR_EMAIL>" \
		<stdin >actual &&
	test_cmp expect actual
'

test_expect_success 'check-mailmap bogus contact' '
	test_must_fail git check-mailmap bogus
'

test_expect_success 'check-mailmap bogus contact --stdin' '
	test_must_fail git check-mailmap --stdin bogus </dev/null
'

test_expect_success 'No mailmap' '
	cat >expect <<-EOF &&
	$GIT_AUTHOR_NAME (1):
	      initial

	nick1 (1):
	      second

	EOF
	git shortlog HEAD >actual &&
	test_cmp expect actual
'

test_expect_success 'setup default .mailmap' '
	cat >default.map <<-EOF
	Repo Guy <$GIT_AUTHOR_EMAIL>
	EOF
'

test_expect_success 'test default .mailmap' '
	test_when_finished "rm .mailmap" &&
	cp default.map .mailmap &&

	cat >expect <<-\EOF &&
	Repo Guy (1):
	      initial

	nick1 (1):
	      second

	EOF
	git shortlog HEAD >actual &&
	test_cmp expect actual
'

test_expect_success 'mailmap.file set' '
	test_when_finished "rm .mailmap" &&
	cp default.map .mailmap &&

	test_config mailmap.file internal.map &&
	cat >internal.map <<-\EOF &&
	Internal Guy <bugs@company.xx>
	EOF

	cat >expect <<-\EOF &&
	Internal Guy (1):
	      second

	Repo Guy (1):
	      initial

	EOF
	git shortlog HEAD >actual &&
	test_cmp expect actual &&

	# The internal_mailmap/.mailmap file is an a subdirectory, but
	# as shown here it can also be outside the repository
	test_when_finished "rm -rf sub-repo" &&
	git clone . sub-repo &&
	(
		cd sub-repo &&
		cp ../.mailmap . &&
		git config mailmap.file ../internal.map &&
		git shortlog HEAD >actual &&
		test_cmp ../expect actual
	)
'

test_expect_success 'mailmap.file override' '
	test_config mailmap.file internal.map &&
	cat >internal.map <<-EOF &&
	Internal Guy <bugs@company.xx>
	External Guy <$GIT_AUTHOR_EMAIL>
	EOF

	cat >expect <<-\EOF &&
	External Guy (1):
	      initial

	Internal Guy (1):
	      second

	EOF
	git shortlog HEAD >actual &&
	test_cmp expect actual
'

test_expect_success 'mailmap.file non-existent' '
	test_when_finished "rm .mailmap" &&
	cp default.map .mailmap &&

	cat >expect <<-\EOF &&
	Repo Guy (1):
	      initial

	nick1 (1):
	      second

	EOF
	git shortlog HEAD >actual &&
	test_cmp expect actual
'

test_expect_success 'name entry after email entry' '
	test_when_finished "rm .mailmap" &&
	cp default.map .mailmap &&

	test_config mailmap.file internal.map &&
	cat >internal.map <<-\EOF &&
	<bugs@company.xy> <bugs@company.xx>
	Internal Guy <bugs@company.xx>
	EOF

	cat >expect <<-\EOF &&
	Internal Guy (1):
	      second

	Repo Guy (1):
	      initial

	EOF

	git shortlog HEAD >actual &&
	test_cmp expect actual
'

test_expect_success 'name entry after email entry, case-insensitive' '
	test_when_finished "rm .mailmap" &&
	cp default.map .mailmap &&

	test_config mailmap.file internal.map &&
	cat >internal.map <<-\EOF &&
	<bugs@company.xy> <bugs@company.xx>
	Internal Guy <BUGS@Company.xx>
	EOF

	cat >expect <<-\EOF &&
	Internal Guy (1):
	      second

	Repo Guy (1):
	      initial

	EOF

	git shortlog HEAD >actual &&
	test_cmp expect actual
'

test_expect_success 'No mailmap files, but configured' '
	cat >expect <<-EOF &&
	$GIT_AUTHOR_NAME (1):
	      initial

	nick1 (1):
	      second

	EOF
	git shortlog HEAD >actual &&
	test_cmp expect actual
'

test_expect_success 'setup mailmap blob tests' '
	git checkout -b map &&
	test_when_finished "git checkout master" &&
	cat >just-bugs <<-\EOF &&
	Blob Guy <bugs@company.xx>
	EOF
	cat >both <<-EOF &&
	Blob Guy <$GIT_AUTHOR_EMAIL>
	Blob Guy <bugs@company.xx>
	EOF
	printf "Tricky Guy <$GIT_AUTHOR_EMAIL>" >no-newline &&
	git add just-bugs both no-newline &&
	git commit -m "my mailmaps" &&

	cat >internal.map <<-EOF
	Internal Guy <$GIT_AUTHOR_EMAIL>
	EOF
'

test_expect_success 'mailmap.blob set' '
	test_when_finished "rm .mailmap" &&
	cp default.map .mailmap &&

	cat >expect <<-\EOF &&
	Blob Guy (1):
	      second

	Repo Guy (1):
	      initial

	EOF
	git -c mailmap.blob=map:just-bugs shortlog HEAD >actual &&
	test_cmp expect actual
'

test_expect_success 'mailmap.blob overrides .mailmap' '
	test_when_finished "rm .mailmap" &&
	cp default.map .mailmap &&

	cat >expect <<-\EOF &&
	Blob Guy (2):
	      initial
	      second

	EOF
	git -c mailmap.blob=map:both shortlog HEAD >actual &&
	test_cmp expect actual
'

test_expect_success 'mailmap.file overrides mailmap.blob' '
	cat >expect <<-\EOF &&
	Blob Guy (1):
	      second

	Internal Guy (1):
	      initial

	EOF
	git \
	  -c mailmap.blob=map:both \
	  -c mailmap.file=internal.map \
	  shortlog HEAD >actual &&
	test_cmp expect actual
'

test_expect_success 'mailmap.blob can be missing' '
	test_when_finished "rm .mailmap" &&
	cp default.map .mailmap &&

	cat >expect <<-\EOF &&
	Repo Guy (1):
	      initial

	nick1 (1):
	      second

	EOF
	git -c mailmap.blob=map:nonexistent shortlog HEAD >actual &&
	test_cmp expect actual
'

test_expect_success 'mailmap.blob might be the wrong type' '
	test_when_finished "rm .mailmap" &&
	cp default.map .mailmap &&

	git -c mailmap.blob=HEAD: shortlog HEAD >actual 2>err &&
	test_i18ngrep "mailmap is not a blob" err &&
	test_cmp expect actual
'

test_expect_success 'mailmap.blob defaults to off in non-bare repo' '
	git init non-bare &&
	(
		cd non-bare &&
		test_commit one .mailmap "Fake Name <$GIT_AUTHOR_EMAIL>" &&
		cat >expect <<-\EOF &&
		     1	Fake Name
		EOF
		git shortlog -ns HEAD >actual &&
		test_cmp expect actual &&
		rm .mailmap &&
		cat >expect <<-EOF &&
		     1	$GIT_AUTHOR_NAME
		EOF
		git shortlog -ns HEAD >actual &&
		test_cmp expect actual
	)
'

test_expect_success 'mailmap.blob defaults to HEAD:.mailmap in bare repo' '
	git clone --bare non-bare bare &&
	(
		cd bare &&
		cat >expect <<-\EOF &&
		     1	Fake Name
		EOF
		git shortlog -ns HEAD >actual &&
		test_cmp expect actual
	)
'

test_expect_success 'mailmap.blob can handle blobs without trailing newline' '
	cat >expect <<-\EOF &&
	Tricky Guy (1):
	      initial

	nick1 (1):
	      second

	EOF
	git -c mailmap.blob=map:no-newline shortlog HEAD >actual &&
	test_cmp expect actual
'

test_expect_success 'single-character name' '
	test_when_finished "rm .mailmap" &&
	cat >.mailmap <<-EOF &&
	A <$GIT_AUTHOR_EMAIL>
	EOF

	cat >expect <<-EOF &&
	     1	A <$GIT_AUTHOR_EMAIL>
	     1	nick1 <bugs@company.xx>
	EOF
	git shortlog -es HEAD >actual &&
	test_cmp expect actual
'

test_expect_success 'preserve canonical email case' '
	test_when_finished "rm .mailmap" &&
	cat >.mailmap <<-EOF &&
	<AUTHOR@example.com> <$GIT_AUTHOR_EMAIL>
	EOF

	cat >expect <<-EOF &&
	     1	$GIT_AUTHOR_NAME <AUTHOR@example.com>
	     1	nick1 <bugs@company.xx>
	EOF
	git shortlog -es HEAD >actual &&
	test_cmp expect actual
'

test_expect_success 'Shortlog output (complex mapping)' '
	test_config mailmap.file complex.map &&
	cat >complex.map <<-EOF &&
	Committed <$GIT_COMMITTER_EMAIL>
	<cto@company.xx> <cto@coompany.xx>
	Some Dude <some@dude.xx>         nick1 <bugs@company.xx>
	Other Author <other@author.xx>   nick2 <bugs@company.xx>
	Other Author <other@author.xx>         <nick2@company.xx>
	Santa Claus <santa.claus@northpole.xx> <me@company.xx>
	EOF

	echo three >>one &&
	git add one &&
	test_tick &&
	git commit --author "nick2 <bugs@company.xx>" -m third &&

	echo four >>one &&
	git add one &&
	test_tick &&
	git commit --author "nick2 <nick2@company.xx>" -m fourth &&

	echo five >>one &&
	git add one &&
	test_tick &&
	git commit --author "santa <me@company.xx>" -m fifth &&

	echo six >>one &&
	git add one &&
	test_tick &&
	git commit --author "claus <me@company.xx>" -m sixth &&

	echo seven >>one &&
	git add one &&
	test_tick &&
	git commit --author "CTO <cto@coompany.xx>" -m seventh &&

	cat >expect <<-EOF &&
	$GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL> (1):
	      initial

	CTO <cto@company.xx> (1):
	      seventh

	Other Author <other@author.xx> (2):
	      third
	      fourth

	Santa Claus <santa.claus@northpole.xx> (2):
	      fifth
	      sixth

	Some Dude <some@dude.xx> (1):
	      second

	EOF

	git shortlog -e HEAD >actual &&
	test_cmp expect actual

'

test_expect_success 'Log output (complex mapping)' '
	test_config mailmap.file complex.map &&

	cat >expect <<-EOF &&
	Author CTO <cto@coompany.xx> maps to CTO <cto@company.xx>
	Committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> maps to Committed <$GIT_COMMITTER_EMAIL>

	Author claus <me@company.xx> maps to Santa Claus <santa.claus@northpole.xx>
	Committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> maps to Committed <$GIT_COMMITTER_EMAIL>

	Author santa <me@company.xx> maps to Santa Claus <santa.claus@northpole.xx>
	Committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> maps to Committed <$GIT_COMMITTER_EMAIL>

	Author nick2 <nick2@company.xx> maps to Other Author <other@author.xx>
	Committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> maps to Committed <$GIT_COMMITTER_EMAIL>

	Author nick2 <bugs@company.xx> maps to Other Author <other@author.xx>
	Committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> maps to Committed <$GIT_COMMITTER_EMAIL>

	Author nick1 <bugs@company.xx> maps to Some Dude <some@dude.xx>
	Committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> maps to Committed <$GIT_COMMITTER_EMAIL>

	Author $GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL> maps to $GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL>
	Committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> maps to Committed <$GIT_COMMITTER_EMAIL>
	EOF

	git log --pretty=format:"Author %an <%ae> maps to %aN <%aE>%nCommitter %cn <%ce> maps to %cN <%cE>%n" >actual &&
	test_cmp expect actual
'

test_expect_success 'Log output (local-part email address)' '
	cat >expect <<-EOF &&
	Author email cto@coompany.xx has local-part cto
	Committer email $GIT_COMMITTER_EMAIL has local-part $TEST_COMMITTER_LOCALNAME

	Author email me@company.xx has local-part me
	Committer email $GIT_COMMITTER_EMAIL has local-part $TEST_COMMITTER_LOCALNAME

	Author email me@company.xx has local-part me
	Committer email $GIT_COMMITTER_EMAIL has local-part $TEST_COMMITTER_LOCALNAME

	Author email nick2@company.xx has local-part nick2
	Committer email $GIT_COMMITTER_EMAIL has local-part $TEST_COMMITTER_LOCALNAME

	Author email bugs@company.xx has local-part bugs
	Committer email $GIT_COMMITTER_EMAIL has local-part $TEST_COMMITTER_LOCALNAME

	Author email bugs@company.xx has local-part bugs
	Committer email $GIT_COMMITTER_EMAIL has local-part $TEST_COMMITTER_LOCALNAME

	Author email author@example.com has local-part author
	Committer email $GIT_COMMITTER_EMAIL has local-part $TEST_COMMITTER_LOCALNAME
	EOF

	git log --pretty=format:"Author email %ae has local-part %al%nCommitter email %ce has local-part %cl%n" >actual &&
	test_cmp expect actual
'

test_expect_success 'Log output with --use-mailmap' '
	test_config mailmap.file complex.map &&

	cat >expect <<-EOF &&
	Author: CTO <cto@company.xx>
	Author: Santa Claus <santa.claus@northpole.xx>
	Author: Santa Claus <santa.claus@northpole.xx>
	Author: Other Author <other@author.xx>
	Author: Other Author <other@author.xx>
	Author: Some Dude <some@dude.xx>
	Author: $GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL>
	EOF

	git log --use-mailmap | grep Author >actual &&
	test_cmp expect actual
'

test_expect_success 'Log output with log.mailmap' '
	test_config mailmap.file complex.map &&

	cat >expect <<-EOF &&
	Author: CTO <cto@company.xx>
	Author: Santa Claus <santa.claus@northpole.xx>
	Author: Santa Claus <santa.claus@northpole.xx>
	Author: Other Author <other@author.xx>
	Author: Other Author <other@author.xx>
	Author: Some Dude <some@dude.xx>
	Author: $GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL>
	EOF

	git -c log.mailmap=True log | grep Author >actual &&
	test_cmp expect actual
'

test_expect_success 'log.mailmap=false disables mailmap' '
	cat >expect <<-EOF &&
	Author: CTO <cto@coompany.xx>
	Author: claus <me@company.xx>
	Author: santa <me@company.xx>
	Author: nick2 <nick2@company.xx>
	Author: nick2 <bugs@company.xx>
	Author: nick1 <bugs@company.xx>
	Author: $GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL>
	EOF
	git -c log.mailmap=false log | grep Author >actual &&
	test_cmp expect actual
'

test_expect_success '--no-use-mailmap disables mailmap' '
	cat >expect <<-EOF &&
	Author: CTO <cto@coompany.xx>
	Author: claus <me@company.xx>
	Author: santa <me@company.xx>
	Author: nick2 <nick2@company.xx>
	Author: nick2 <bugs@company.xx>
	Author: nick1 <bugs@company.xx>
	Author: $GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL>
	EOF
	git log --no-use-mailmap | grep Author > actual &&
	test_cmp expect actual
'

test_expect_success 'Grep author with --use-mailmap' '
	test_config mailmap.file complex.map &&

	cat >expect <<-\EOF &&
	Author: Santa Claus <santa.claus@northpole.xx>
	Author: Santa Claus <santa.claus@northpole.xx>
	EOF
	git log --use-mailmap --author Santa | grep Author >actual &&
	test_cmp expect actual
'

test_expect_success 'Grep author with log.mailmap' '
	test_config mailmap.file complex.map &&

	cat >expect <<-\EOF &&
	Author: Santa Claus <santa.claus@northpole.xx>
	Author: Santa Claus <santa.claus@northpole.xx>
	EOF

	git -c log.mailmap=True log --author Santa | grep Author >actual &&
	test_cmp expect actual
'

test_expect_success 'log.mailmap is true by default these days' '
	test_config mailmap.file complex.map &&
	git log --author Santa | grep Author >actual &&
	test_cmp expect actual
'

test_expect_success 'Only grep replaced author with --use-mailmap' '
	test_config mailmap.file complex.map &&
	git log --use-mailmap --author "<cto@coompany.xx>" >actual &&
	test_must_be_empty actual
'

test_expect_success 'Blame --porcelain output (complex mapping)' '
	test_config mailmap.file complex.map &&

	cat >expect <<-EOF &&
	1 1 1
	A U Thor
	2 2 1
	Some Dude
	3 3 1
	Other Author
	4 4 1
	Other Author
	5 5 1
	Santa Claus
	6 6 1
	Santa Claus
	7 7 1
	CTO
	EOF

	git blame --porcelain one >actual.blame &&
	grep -E \
		-e "[0-9]+ [0-9]+ [0-9]+$" \
		-e "^author .*$" \
		actual.blame >actual.grep &&
	cut -d " " -f2-4 <actual.grep >actual.fuzz &&
	test_cmp expect actual.fuzz
'

test_expect_success 'Blame output (complex mapping)' '
	git -c mailmap.file=complex.map blame one >a &&
	git blame one >b &&
	test_file_not_empty a &&
	! cmp a b
'

test_expect_success 'commit --author honors mailmap' '
	test_config mailmap.file complex.map &&

	cat >expect <<-\EOF &&
	Some Dude <some@dude.xx>
	EOF

	test_must_fail git commit --author "nick" --allow-empty -meight &&
	git commit --author "Some Dude" --allow-empty -meight &&
	git show --pretty=format:"%an <%ae>%n" >actual &&
	test_cmp expect actual
'

test_done