#!/bin/sh

test_description='sparse checkout tests'

. ./test-lib.sh

cat >expected <<EOF
100644 77f0ba1734ed79d12881f81b36ee134de6a3327b 0	init.t
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0	sub/added
EOF
test_expect_success 'setup' '
	test_commit init &&
	echo modified >> init.t &&
	mkdir sub &&
	touch sub/added &&
	git add init.t sub/added &&
	git commit -m "modified and added" &&
	git tag top &&
	git rm sub/added &&
	git commit -m removed &&
	git tag removed &&
	git checkout top &&
	git ls-files --stage > result &&
	test_cmp expected result
'

cat >expected.swt <<EOF
H init.t
H sub/added
EOF
test_expect_success 'read-tree without .git/info/sparse-checkout' '
	git read-tree -m -u HEAD &&
	git ls-files --stage > result &&
	test_cmp expected result &&
	git ls-files -t > result &&
	test_cmp expected.swt result
'

test_expect_success 'read-tree with .git/info/sparse-checkout but disabled' '
	echo > .git/info/sparse-checkout
	git read-tree -m -u HEAD &&
	git ls-files -t > result &&
	test_cmp expected.swt result &&
	test -f init.t &&
	test -f sub/added
'

test_expect_success 'read-tree --no-sparse-checkout with empty .git/info/sparse-checkout and enabled' '
	git config core.sparsecheckout true &&
	echo > .git/info/sparse-checkout &&
	git read-tree --no-sparse-checkout -m -u HEAD &&
	git ls-files -t > result &&
	test_cmp expected.swt result &&
	test -f init.t &&
	test -f sub/added
'

test_expect_success 'read-tree with empty .git/info/sparse-checkout' '
	git config core.sparsecheckout true &&
	echo > .git/info/sparse-checkout &&
	test_must_fail git read-tree -m -u HEAD &&
	git ls-files --stage > result &&
	test_cmp expected result &&
	git ls-files -t > result &&
	test_cmp expected.swt result &&
	test -f init.t &&
	test -f sub/added
'

cat >expected.swt <<EOF
S init.t
H sub/added
EOF
test_expect_success 'match directories with trailing slash' '
	echo sub/ > .git/info/sparse-checkout &&
	git read-tree -m -u HEAD &&
	git ls-files -t > result &&
	test_cmp expected.swt result &&
	test ! -f init.t &&
	test -f sub/added
'

cat >expected.swt <<EOF
H init.t
H sub/added
EOF
test_expect_failure 'match directories without trailing slash' '
	echo init.t > .git/info/sparse-checkout &&
	echo sub >> .git/info/sparse-checkout &&
	git read-tree -m -u HEAD &&
	git ls-files -t > result &&
	test_cmp expected.swt result &&
	test ! -f init.t &&
	test -f sub/added
'

cat >expected.swt <<EOF
H init.t
S sub/added
EOF
test_expect_success 'checkout area changes' '
	echo init.t > .git/info/sparse-checkout &&
	git read-tree -m -u HEAD &&
	git ls-files -t > result &&
	test_cmp expected.swt result &&
	test -f init.t &&
	test ! -f sub/added
'

test_expect_success 'read-tree updates worktree, absent case' '
	echo sub/added > .git/info/sparse-checkout &&
	git checkout -f top &&
	git read-tree -m -u HEAD^ &&
	test ! -f init.t
'

test_expect_success 'read-tree updates worktree, dirty case' '
	echo sub/added > .git/info/sparse-checkout &&
	git checkout -f top &&
	echo dirty > init.t &&
	git read-tree -m -u HEAD^ &&
	grep -q dirty init.t &&
	rm init.t
'

test_expect_success 'read-tree removes worktree, dirty case' '
	echo init.t > .git/info/sparse-checkout &&
	git checkout -f top &&
	echo dirty > added &&
	git read-tree -m -u HEAD^ &&
	grep -q dirty added
'

test_expect_success 'read-tree adds to worktree, absent case' '
	echo init.t > .git/info/sparse-checkout &&
	git checkout -f removed &&
	git read-tree -u -m HEAD^ &&
	test ! -f sub/added
'

test_expect_success 'read-tree adds to worktree, dirty case' '
	echo init.t > .git/info/sparse-checkout &&
	git checkout -f removed &&
	mkdir sub &&
	echo dirty > sub/added &&
	git read-tree -u -m HEAD^ &&
	grep -q dirty sub/added
'

test_done