#!/bin/sh

test_description='test config file include directives'
. ./test-lib.sh

# Force setup_explicit_git_dir() to run until the end. This is needed
# by some tests to make sure real_path() is called on $GIT_DIR. The
# caller needs to make sure git commands are run from a subdirectory
# though or real_path() will not be called.
force_setup_explicit_git_dir() {
    GIT_DIR="$(pwd)/.git"
    GIT_WORK_TREE="$(pwd)"
    export GIT_DIR GIT_WORK_TREE
}

test_expect_success 'include file by absolute path' '
	echo "[test]one = 1" >one &&
	echo "[include]path = \"$(pwd)/one\"" >.gitconfig &&
	echo 1 >expect &&
	git config test.one >actual &&
	test_cmp expect actual
'

test_expect_success 'include file by relative path' '
	echo "[test]one = 1" >one &&
	echo "[include]path = one" >.gitconfig &&
	echo 1 >expect &&
	git config test.one >actual &&
	test_cmp expect actual
'

test_expect_success 'chained relative paths' '
	mkdir subdir &&
	echo "[test]three = 3" >subdir/three &&
	echo "[include]path = three" >subdir/two &&
	echo "[include]path = subdir/two" >.gitconfig &&
	echo 3 >expect &&
	git config test.three >actual &&
	test_cmp expect actual
'

test_expect_success 'include paths get tilde-expansion' '
	echo "[test]one = 1" >one &&
	echo "[include]path = ~/one" >.gitconfig &&
	echo 1 >expect &&
	git config test.one >actual &&
	test_cmp expect actual
'

test_expect_success 'include options can still be examined' '
	echo "[test]one = 1" >one &&
	echo "[include]path = one" >.gitconfig &&
	echo one >expect &&
	git config include.path >actual &&
	test_cmp expect actual
'

test_expect_success 'listing includes option and expansion' '
	echo "[test]one = 1" >one &&
	echo "[include]path = one" >.gitconfig &&
	cat >expect <<-\EOF &&
	include.path=one
	test.one=1
	EOF
	git config --list >actual.full &&
	grep -v ^core actual.full >actual &&
	test_cmp expect actual
'

test_expect_success 'single file lookup does not expand includes by default' '
	echo "[test]one = 1" >one &&
	echo "[include]path = one" >.gitconfig &&
	test_must_fail git config -f .gitconfig test.one &&
	test_must_fail git config --global test.one &&
	echo 1 >expect &&
	git config --includes -f .gitconfig test.one >actual &&
	test_cmp expect actual
'

test_expect_success 'single file list does not expand includes by default' '
	echo "[test]one = 1" >one &&
	echo "[include]path = one" >.gitconfig &&
	echo "include.path=one" >expect &&
	git config -f .gitconfig --list >actual &&
	test_cmp expect actual
'

test_expect_success 'writing config file does not expand includes' '
	echo "[test]one = 1" >one &&
	echo "[include]path = one" >.gitconfig &&
	git config test.two 2 &&
	echo 2 >expect &&
	git config --no-includes test.two >actual &&
	test_cmp expect actual &&
	test_must_fail git config --no-includes test.one
'

test_expect_success 'config modification does not affect includes' '
	echo "[test]one = 1" >one &&
	echo "[include]path = one" >.gitconfig &&
	git config test.one 2 &&
	echo 1 >expect &&
	git config -f one test.one >actual &&
	test_cmp expect actual &&
	cat >expect <<-\EOF &&
	1
	2
	EOF
	git config --get-all test.one >actual &&
	test_cmp expect actual
'

test_expect_success 'missing include files are ignored' '
	cat >.gitconfig <<-\EOF &&
	[include]path = non-existent
	[test]value = yes
	EOF
	echo yes >expect &&
	git config test.value >actual &&
	test_cmp expect actual
'

test_expect_success 'absolute includes from command line work' '
	echo "[test]one = 1" >one &&
	echo 1 >expect &&
	git -c include.path="$(pwd)/one" config test.one >actual &&
	test_cmp expect actual
'

test_expect_success 'relative includes from command line fail' '
	echo "[test]one = 1" >one &&
	test_must_fail git -c include.path=one config test.one
'

test_expect_success 'absolute includes from blobs work' '
	echo "[test]one = 1" >one &&
	echo "[include]path=$(pwd)/one" >blob &&
	blob=$(git hash-object -w blob) &&
	echo 1 >expect &&
	git config --blob=$blob test.one >actual &&
	test_cmp expect actual
'

test_expect_success 'relative includes from blobs fail' '
	echo "[test]one = 1" >one &&
	echo "[include]path=one" >blob &&
	blob=$(git hash-object -w blob) &&
	test_must_fail git config --blob=$blob test.one
'

test_expect_success 'absolute includes from stdin work' '
	echo "[test]one = 1" >one &&
	echo 1 >expect &&
	echo "[include]path=\"$(pwd)/one\"" |
	git config --file - test.one >actual &&
	test_cmp expect actual
'

test_expect_success 'relative includes from stdin line fail' '
	echo "[test]one = 1" >one &&
	echo "[include]path=one" |
	test_must_fail git config --file - test.one
'

test_expect_success 'conditional include, both unanchored' '
	git init foo &&
	(
		cd foo &&
		echo "[includeIf \"gitdir:foo/\"]path=bar" >>.git/config &&
		echo "[test]one=1" >.git/bar &&
		echo 1 >expect &&
		git config test.one >actual &&
		test_cmp expect actual
	)
'

test_expect_success 'conditional include, $HOME expansion' '
	(
		cd foo &&
		echo "[includeIf \"gitdir:~/foo/\"]path=bar2" >>.git/config &&
		echo "[test]two=2" >.git/bar2 &&
		echo 2 >expect &&
		git config test.two >actual &&
		test_cmp expect actual
	)
'

test_expect_success 'conditional include, full pattern' '
	(
		cd foo &&
		echo "[includeIf \"gitdir:**/foo/**\"]path=bar3" >>.git/config &&
		echo "[test]three=3" >.git/bar3 &&
		echo 3 >expect &&
		git config test.three >actual &&
		test_cmp expect actual
	)
'

test_expect_success 'conditional include, relative path' '
	echo "[includeIf \"gitdir:./foo/.git\"]path=bar4" >>.gitconfig &&
	echo "[test]four=4" >bar4 &&
	(
		cd foo &&
		echo 4 >expect &&
		git config test.four >actual &&
		test_cmp expect actual
	)
'

test_expect_success 'conditional include, both unanchored, icase' '
	(
		cd foo &&
		echo "[includeIf \"gitdir/i:FOO/\"]path=bar5" >>.git/config &&
		echo "[test]five=5" >.git/bar5 &&
		echo 5 >expect &&
		git config test.five >actual &&
		test_cmp expect actual
	)
'

test_expect_success 'conditional include, early config reading' '
	(
		cd foo &&
		echo "[includeIf \"gitdir:foo/\"]path=bar6" >>.git/config &&
		echo "[test]six=6" >.git/bar6 &&
		echo 6 >expect &&
		test-config read_early_config test.six >actual &&
		test_cmp expect actual
	)
'

test_expect_success SYMLINKS 'conditional include, set up symlinked $HOME' '
	mkdir real-home &&
	ln -s real-home home &&
	(
		HOME="$TRASH_DIRECTORY/home" &&
		export HOME &&
		cd "$HOME" &&

		git init foo &&
		cd foo &&
		mkdir sub
	)
'

test_expect_success SYMLINKS 'conditional include, $HOME expansion with symlinks' '
	(
		HOME="$TRASH_DIRECTORY/home" &&
		export HOME &&
		cd "$HOME"/foo &&

		echo "[includeIf \"gitdir:~/foo/\"]path=bar2" >>.git/config &&
		echo "[test]two=2" >.git/bar2 &&
		echo 2 >expect &&
		force_setup_explicit_git_dir &&
		git -C sub config test.two >actual &&
		test_cmp expect actual
	)
'

test_expect_success SYMLINKS 'conditional include, relative path with symlinks' '
	echo "[includeIf \"gitdir:./foo/.git\"]path=bar4" >home/.gitconfig &&
	echo "[test]four=4" >home/bar4 &&
	(
		HOME="$TRASH_DIRECTORY/home" &&
		export HOME &&
		cd "$HOME"/foo &&

		echo 4 >expect &&
		force_setup_explicit_git_dir &&
		git -C sub config test.four >actual &&
		test_cmp expect actual
	)
'

test_expect_success 'include cycles are detected' '
	cat >.gitconfig <<-\EOF &&
	[test]value = gitconfig
	[include]path = cycle
	EOF
	cat >cycle <<-\EOF &&
	[test]value = cycle
	[include]path = .gitconfig
	EOF
	cat >expect <<-\EOF &&
	gitconfig
	cycle
	EOF
	test_must_fail git config --get-all test.value 2>stderr &&
	grep "exceeded maximum include depth" stderr
'

test_done