#!/bin/sh

test_description='test local clone'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME

. ./test-lib.sh

repo_is_hardlinked() {
	find "$1/objects" -type f -links 1 >output &&
	test_line_count = 0 output
}

if test_have_prereq MINGW,BUSYBOX
then
	# BusyBox' `find` does not support `-links`. Besides, BusyBox-w32's
	# lstat() does not report hard links, just like Git's mingw_lstat()
	# (from where BusyBox-w32 got its initial implementation).
	repo_is_hardlinked() {
		for f in $(find "$1/objects" -type f)
		do
			"$SYSTEMROOT"/system32/fsutil.exe \
				hardlink list $f >links &&
			test_line_count -gt 1 links || return 1
		done
	}
fi

test_expect_success 'preparing origin repository' '
	: >file && git add . && git commit -m1 &&
	git clone --bare . a.git &&
	git clone --bare . x &&
	echo true >expect &&
	git -C a.git config --bool core.bare >actual &&
	test_cmp expect actual &&
	echo true >expect &&
	git -C x config --bool core.bare >actual &&
	test_cmp expect actual &&
	git bundle create b1.bundle --all &&
	git bundle create b2.bundle main &&
	mkdir dir &&
	cp b1.bundle dir/b3 &&
	cp b1.bundle b4 &&
	git branch not-main main &&
	git bundle create b5.bundle not-main
'

test_expect_success 'local clone without .git suffix' '
	git clone -l -s a b &&
	(cd b &&
	echo false >expect &&
	git config --bool core.bare >actual &&
	test_cmp expect actual &&
	git fetch)
'

test_expect_success 'local clone with .git suffix' '
	git clone -l -s a.git c &&
	(cd c && git fetch)
'

test_expect_success 'local clone from x' '
	git clone -l -s x y &&
	(cd y && git fetch)
'

test_expect_success 'local clone from x.git that does not exist' '
	test_must_fail git clone -l -s x.git z
'

test_expect_success 'With -no-hardlinks, local will make a copy' '
	git clone --bare --no-hardlinks x w &&
	! repo_is_hardlinked w
'

test_expect_success 'Even without -l, local will make a hardlink' '
	rm -fr w &&
	git clone -l --bare x w &&
	repo_is_hardlinked w
'

test_expect_success 'local clone of repo with nonexistent ref in HEAD' '
	git -C a.git symbolic-ref HEAD refs/heads/nonexistent &&
	git clone a d &&
	(cd d &&
	git fetch &&
	test_ref_missing refs/remotes/origin/HEAD)
'

test_expect_success 'bundle clone without .bundle suffix' '
	git clone dir/b3 &&
	(cd b3 && git fetch)
'

test_expect_success 'bundle clone with .bundle suffix' '
	git clone b1.bundle &&
	(cd b1 && git fetch)
'

test_expect_success 'bundle clone from b4' '
	git clone b4 bdl &&
	(cd bdl && git fetch)
'

test_expect_success 'bundle clone from b4.bundle that does not exist' '
	test_must_fail git clone b4.bundle bb
'

test_expect_success 'bundle clone with nonexistent HEAD (match default)' '
	git clone b2.bundle b2 &&
	(cd b2 &&
	git fetch &&
	git rev-parse --verify refs/heads/main)
'

test_expect_success 'bundle clone with nonexistent HEAD (no match default)' '
	git clone b5.bundle b5 &&
	(cd b5 &&
	git fetch &&
	test_must_fail git rev-parse --verify refs/heads/main &&
	test_must_fail git rev-parse --verify refs/heads/not-main)
'

test_expect_success 'clone empty repository' '
	mkdir empty &&
	(cd empty &&
	 git init &&
	 git config receive.denyCurrentBranch warn) &&
	git clone empty empty-clone &&
	test_tick &&
	(cd empty-clone &&
	 echo "content" >> foo &&
	 git add foo &&
	 git commit -m "Initial commit" &&
	 git push origin main &&
	 expected=$(git rev-parse main) &&
	 actual=$(git --git-dir=../empty/.git rev-parse main) &&
	 test $actual = $expected)
'

test_expect_success 'clone empty repository, and then push should not segfault.' '
	rm -fr empty/ empty-clone/ &&
	mkdir empty &&
	(cd empty && git init) &&
	git clone empty empty-clone &&
	(cd empty-clone &&
	test_must_fail git push)
'

test_expect_success 'cloning non-existent directory fails' '
	rm -rf does-not-exist &&
	test_must_fail git clone does-not-exist
'

test_expect_success 'cloning non-git directory fails' '
	rm -rf not-a-git-repo not-a-git-repo-clone &&
	mkdir not-a-git-repo &&
	test_must_fail git clone not-a-git-repo not-a-git-repo-clone
'

test_expect_success 'cloning file:// does not hardlink' '
	git clone --bare file://"$(pwd)"/a non-local &&
	! repo_is_hardlinked non-local
'

test_expect_success 'cloning a local path with --no-local does not hardlink' '
	git clone --bare --no-local a force-nonlocal &&
	! repo_is_hardlinked force-nonlocal
'

test_expect_success 'cloning a local path with --no-local from a different user succeeds' '
	git clone --upload-pack="GIT_TEST_ASSUME_DIFFERENT_OWNER=true git-upload-pack" \
		--no-local a nonlocal-otheruser 2>err &&
	! repo_is_hardlinked nonlocal-otheruser/.git &&
	# Verify that this is a git repository.
	git -C nonlocal-otheruser rev-parse --show-toplevel &&
	test_grep ! "detected dubious ownership" err
'

test_expect_success 'cloning locally respects "-u" for fetching refs' '
	test_must_fail git clone --bare -u false a should_not_work.git
'

test_expect_success REFFILES 'local clone from repo with corrupt refs fails gracefully' '
	git init corrupt &&
	test_commit -C corrupt one &&
	echo a >corrupt/.git/refs/heads/topic &&

	test_must_fail git clone corrupt working 2>err &&
	grep "has neither a valid OID nor a target" err
'

test_done
