#!/bin/sh
#
# Copyright (c) 2010, Will Palmer
# Copyright (c) 2011, Alexey Shumkin (+ non-UTF-8 commit encoding tests)
#

test_description='Test pretty formats'
. ./test-lib.sh

commit_msg () {
	# String "initial. initial" partly in German (translated with Google Translate),
	# encoded in UTF-8, used as a commit log message below.
	msg=$(printf "initial. anf\303\244nglich")
	if test -n "$1"
	then
		msg=$(echo $msg | iconv -f utf-8 -t $1)
	fi
	if test -n "$2" -a -n "$3"
	then
		# cut string, replace cut part with two dots
		# $2 - chars count from the beginning of the string
		# $3 - "trailing" chars
		# LC_ALL is set to make `sed` interpret "." as a UTF-8 char not a byte
		# as it does with C locale
		msg=$(echo $msg | LC_ALL=en_US.UTF-8 sed -e "s/^\(.\{$2\}\)$3/\1../")
	fi
	echo $msg
}

test_expect_success 'set up basic repos' '
	>foo &&
	>bar &&
	git add foo &&
	test_tick &&
	git config i18n.commitEncoding iso-8859-1 &&
	git commit -m "$(commit_msg iso-8859-1)" &&
	git add bar &&
	test_tick &&
	git commit -m "add bar" &&
	git config --unset i18n.commitEncoding
'

test_expect_success 'alias builtin format' '
	git log --pretty=oneline >expected &&
	git config pretty.test-alias oneline &&
	git log --pretty=test-alias >actual &&
	test_cmp expected actual
'

test_expect_success 'alias masking builtin format' '
	git log --pretty=oneline >expected &&
	git config pretty.oneline "%H" &&
	git log --pretty=oneline >actual &&
	test_cmp expected actual
'

test_expect_success 'alias user-defined format' '
	git log --pretty="format:%h" >expected &&
	git config pretty.test-alias "format:%h" &&
	git log --pretty=test-alias >actual &&
	test_cmp expected actual
'

test_expect_success 'alias user-defined tformat with %s (iso-8859-1 encoding)' '
	git config i18n.logOutputEncoding iso-8859-1 &&
	git log --oneline >expected-s &&
	git log --pretty="tformat:%h %s" >actual-s &&
	git config --unset i18n.logOutputEncoding &&
	test_cmp expected-s actual-s
'

test_expect_failure 'alias user-defined tformat with %s (utf-8 encoding)' '
	git log --oneline >expected-s &&
	git log --pretty="tformat:%h %s" >actual-s &&
	test_cmp expected-s actual-s
'

test_expect_success 'alias user-defined tformat' '
	git log --pretty="tformat:%h" >expected &&
	git config pretty.test-alias "tformat:%h" &&
	git log --pretty=test-alias >actual &&
	test_cmp expected actual
'

test_expect_success 'alias non-existent format' '
	git config pretty.test-alias format-that-will-never-exist &&
	test_must_fail git log --pretty=test-alias
'

test_expect_success 'alias of an alias' '
	git log --pretty="tformat:%h" >expected &&
	git config pretty.test-foo "tformat:%h" &&
	git config pretty.test-bar test-foo &&
	git log --pretty=test-bar >actual && test_cmp expected actual
'

test_expect_success 'alias masking an alias' '
	git log --pretty=format:"Two %H" >expected &&
	git config pretty.duplicate "format:One %H" &&
	git config --add pretty.duplicate "format:Two %H" &&
	git log --pretty=duplicate >actual &&
	test_cmp expected actual
'

test_expect_success 'alias loop' '
	git config pretty.test-foo test-bar &&
	git config pretty.test-bar test-foo &&
	test_must_fail git log --pretty=test-foo
'

test_expect_failure 'NUL separation' '
	printf "add bar\0$(commit_msg)" >expected &&
	git log -z --pretty="format:%s" >actual &&
	test_cmp expected actual
'

test_expect_failure 'NUL termination' '
	printf "add bar\0$(commit_msg)\0" >expected &&
	git log -z --pretty="tformat:%s" >actual &&
	test_cmp expected actual
'

test_expect_failure 'NUL separation with --stat' '
	stat0_part=$(git diff --stat HEAD^ HEAD) &&
	stat1_part=$(git diff-tree --no-commit-id --stat --root HEAD^) &&
	printf "add bar\n$stat0_part\n\0$(commit_msg)\n$stat1_part\n" >expected &&
	git log -z --stat --pretty="format:%s" >actual &&
	test_i18ncmp expected actual
'

test_expect_failure 'NUL termination with --stat' '
	stat0_part=$(git diff --stat HEAD^ HEAD) &&
	stat1_part=$(git diff-tree --no-commit-id --stat --root HEAD^) &&
	printf "add bar\n$stat0_part\n\0$(commit_msg)\n$stat1_part\n0" >expected &&
	git log -z --stat --pretty="tformat:%s" >actual &&
	test_i18ncmp expected actual
'

test_expect_success 'setup more commits' '
	test_commit "message one" one one message-one &&
	test_commit "message two" two two message-two &&
	head1=$(git rev-parse --verify --short HEAD~0) &&
	head2=$(git rev-parse --verify --short HEAD~1) &&
	head3=$(git rev-parse --verify --short HEAD~2) &&
	head4=$(git rev-parse --verify --short HEAD~3)
'

test_expect_failure 'left alignment formatting' "
	git log --pretty='format:%<(40)%s' >actual &&
	# complete the incomplete line at the end
	echo >>actual &&
	qz_to_tab_space <<\EOF >expected &&
message two                            Z
message one                            Z
add bar                                Z
$(commit_msg)                    Z
EOF
	test_cmp expected actual
"

test_expect_failure 'left alignment formatting at the nth column' "
	git log --pretty='format:%h %<|(40)%s' >actual &&
	# complete the incomplete line at the end
	echo >>actual &&
	qz_to_tab_space <<\EOF >expected &&
$head1 message two                    Z
$head2 message one                    Z
$head3 add bar                        Z
$head4 $(commit_msg)            Z
EOF
	test_cmp expected actual
"

test_expect_failure 'left alignment formatting with no padding' "
	git log --pretty='format:%<(1)%s' >actual &&
	# complete the incomplete line at the end
	echo >>actual &&
	cat <<\EOF >expected &&
message two
message one
add bar
$(commit_msg)
EOF
	test_cmp expected actual
"

test_expect_failure 'left alignment formatting with trunc' "
	git log --pretty='format:%<(10,trunc)%s' >actual &&
	# complete the incomplete line at the end
	echo >>actual &&
	qz_to_tab_space <<\EOF >expected &&
message ..
message ..
add bar  Z
$(commit_msg "" "8" ".\+$")
EOF
	test_cmp expected actual
"

test_expect_failure 'left alignment formatting with ltrunc' "
	git log --pretty='format:%<(10,ltrunc)%s' >actual &&
	# complete the incomplete line at the end
	echo >>actual &&
	qz_to_tab_space <<\EOF >expected &&
..sage two
..sage one
add bar  Z
$(commit_msg "" "0" ".\{11\}")
EOF
	test_cmp expected actual
"

test_expect_failure 'left alignment formatting with mtrunc' "
	git log --pretty='format:%<(10,mtrunc)%s' >actual &&
	# complete the incomplete line at the end
	echo >>actual &&
	qz_to_tab_space <<\EOF >expected &&
mess.. two
mess.. one
add bar  Z
$(commit_msg "" "4" ".\{11\}")
EOF
	test_cmp expected actual
"

test_expect_failure 'right alignment formatting' "
	git log --pretty='format:%>(40)%s' >actual &&
	# complete the incomplete line at the end
	echo >>actual &&
	qz_to_tab_space <<\EOF >expected &&
Z                            message two
Z                            message one
Z                                add bar
Z                    $(commit_msg)
EOF
	test_cmp expected actual
"

test_expect_failure 'right alignment formatting at the nth column' "
	git log --pretty='format:%h %>|(40)%s' >actual &&
	# complete the incomplete line at the end
	echo >>actual &&
	qz_to_tab_space <<\EOF >expected &&
$head1                      message two
$head2                      message one
$head3                          add bar
$head4              $(commit_msg)
EOF
	test_cmp expected actual
"

test_expect_failure 'right alignment formatting with no padding' "
	git log --pretty='format:%>(1)%s' >actual &&
	# complete the incomplete line at the end
	echo >>actual &&
	cat <<\EOF >expected &&
message two
message one
add bar
$(commit_msg)
EOF
	test_cmp expected actual
"

test_expect_failure 'center alignment formatting' "
	git log --pretty='format:%><(40)%s' >actual &&
	# complete the incomplete line at the end
	echo >>actual &&
	qz_to_tab_space <<\EOF >expected &&
Z             message two              Z
Z             message one              Z
Z               add bar                Z
Z         $(commit_msg)          Z
EOF
	test_cmp expected actual
"

test_expect_failure 'center alignment formatting at the nth column' "
	git log --pretty='format:%h %><|(40)%s' >actual &&
	# complete the incomplete line at the end
	echo >>actual &&
	qz_to_tab_space <<\EOF >expected &&
$head1           message two          Z
$head2           message one          Z
$head3             add bar            Z
$head4       $(commit_msg)      Z
EOF
	test_cmp expected actual
"

test_expect_failure 'center alignment formatting with no padding' "
	git log --pretty='format:%><(1)%s' >actual &&
	# complete the incomplete line at the end
	echo >>actual &&
	cat <<\EOF >expected &&
message two
message one
add bar
$(commit_msg)
EOF
	test_cmp expected actual
"

test_expect_failure 'left/right alignment formatting with stealing' "
	git commit --amend -m short --author 'long long long <long@me.com>' &&
	git log --pretty='format:%<(10,trunc)%s%>>(10,ltrunc)% an' >actual &&
	# complete the incomplete line at the end
	echo >>actual &&
	cat <<\EOF >expected &&
short long  long long
message ..   A U Thor
add bar      A U Thor
$(commit_msg "" "8" ".\+$")   A U Thor
EOF
	test_cmp expected actual
"

test_done