! test -d bar
'
+test_expect_success 'should clean things that almost look like git but are not' '
+ rm -fr almost_git almost_bare_git almost_submodule &&
+ mkdir -p almost_git/.git/objects &&
+ mkdir -p almost_git/.git/refs &&
+ cat >almost_git/.git/HEAD <<-\EOF &&
+ garbage
+ EOF
+ cp -r almost_git/.git/ almost_bare_git &&
+ mkdir almost_submodule/ &&
+ cat >almost_submodule/.git <<-\EOF &&
+ garbage
+ EOF
+ test_when_finished "rm -rf almost_*" &&
+ git clean -f -d &&
+ test_path_is_missing almost_git &&
+ test_path_is_missing almost_bare_git &&
+ test_path_is_missing almost_submodule
+'
+
+test_expect_success 'should not clean submodules' '
+ rm -fr repo to_clean sub1 sub2 &&
+ mkdir repo to_clean &&
+ (
+ cd repo &&
+ git init &&
+ test_commit msg hello.world
+ ) &&
+ git submodule add ./repo/.git sub1 &&
+ git commit -m "sub1" &&
+ git branch before_sub2 &&
+ git submodule add ./repo/.git sub2 &&
+ git commit -m "sub2" &&
+ git checkout before_sub2 &&
+ >to_clean/should_clean.this &&
+ git clean -f -d &&
+ test_path_is_file repo/.git/index &&
+ test_path_is_file repo/hello.world &&
+ test_path_is_file sub1/.git &&
+ test_path_is_file sub1/hello.world &&
+ test_path_is_file sub2/.git &&
+ test_path_is_file sub2/hello.world &&
+ test_path_is_missing to_clean
+'
+
+test_expect_success POSIXPERM 'should avoid cleaning possible submodules' '
+ rm -fr to_clean possible_sub1 &&
+ mkdir to_clean possible_sub1 &&
+ test_when_finished "rm -rf possible_sub*" &&
+ echo "gitdir: foo" >possible_sub1/.git &&
+ >possible_sub1/hello.world &&
+ chmod 0 possible_sub1/.git &&
+ >to_clean/should_clean.this &&
+ git clean -f -d &&
+ test_path_is_file possible_sub1/.git &&
+ test_path_is_file possible_sub1/hello.world &&
+ test_path_is_missing to_clean
+'
+
+test_expect_success 'nested (empty) git should be kept' '
+ rm -fr empty_repo to_clean &&
+ git init empty_repo &&
+ mkdir to_clean &&
+ >to_clean/should_clean.this &&
+ git clean -f -d &&
+ test_path_is_file empty_repo/.git/HEAD &&
+ test_path_is_missing to_clean
+'
+
+test_expect_success 'nested bare repositories should be cleaned' '
+ rm -fr bare1 bare2 subdir &&
+ git init --bare bare1 &&
+ git clone --local --bare . bare2 &&
+ mkdir subdir &&
+ cp -r bare2 subdir/bare3 &&
+ git clean -f -d &&
+ test_path_is_missing bare1 &&
+ test_path_is_missing bare2 &&
+ test_path_is_missing subdir
+'
+
+test_expect_failure 'nested (empty) bare repositories should be cleaned even when in .git' '
+ rm -fr strange_bare &&
+ mkdir strange_bare &&
+ git init --bare strange_bare/.git &&
+ git clean -f -d &&
+ test_path_is_missing strange_bare
+'
+
+test_expect_failure 'nested (non-empty) bare repositories should be cleaned even when in .git' '
+ rm -fr strange_bare &&
+ mkdir strange_bare &&
+ git clone --local --bare . strange_bare/.git &&
+ git clean -f -d &&
+ test_path_is_missing strange_bare
+'
+
+test_expect_success 'giving path in nested git work tree will remove it' '
+ rm -fr repo &&
+ mkdir repo &&
+ (
+ cd repo &&
+ git init &&
+ mkdir -p bar/baz &&
+ test_commit msg bar/baz/hello.world
+ ) &&
+ git clean -f -d repo/bar/baz &&
+ test_path_is_file repo/.git/HEAD &&
+ test_path_is_dir repo/bar/ &&
+ test_path_is_missing repo/bar/baz
+'
+
+test_expect_success 'giving path to nested .git will not remove it' '
+ rm -fr repo &&
+ mkdir repo untracked &&
+ (
+ cd repo &&
+ git init &&
+ test_commit msg hello.world
+ ) &&
+ git clean -f -d repo/.git &&
+ test_path_is_file repo/.git/HEAD &&
+ test_path_is_dir repo/.git/refs &&
+ test_path_is_dir repo/.git/objects &&
+ test_path_is_dir untracked/
+'
+
+test_expect_success 'giving path to nested .git/ will remove contents' '
+ rm -fr repo untracked &&
+ mkdir repo untracked &&
+ (
+ cd repo &&
+ git init &&
+ test_commit msg hello.world
+ ) &&
+ git clean -f -d repo/.git/ &&
+ test_path_is_dir repo/.git &&
+ test_dir_is_empty repo/.git &&
+ test_path_is_dir untracked/
+'
+
test_expect_success 'force removal of nested git work tree' '
rm -fr foo bar baz &&
mkdir -p foo bar baz/boo &&