merge(third_party/git): Merge squashed git subtree at v2.23.0

Merge commit '1b593e1ea4' as 'third_party/git'

third_party/git/t/t7103-reset-bare.sh

@@ -0,0 +1,69 @@
+#!/bin/sh
+
+test_description='git reset in a bare repository'
+. ./test-lib.sh
+
+test_expect_success 'setup non-bare' '
+	echo one >file &&
+	git add file &&
+	git commit -m one &&
+	echo two >file &&
+	git commit -a -m two
+'
+
+test_expect_success '"hard" reset requires a worktree' '
+	(cd .git &&
+	 test_must_fail git reset --hard)
+'
+
+test_expect_success '"merge" reset requires a worktree' '
+	(cd .git &&
+	 test_must_fail git reset --merge)
+'
+
+test_expect_success '"keep" reset requires a worktree' '
+	(cd .git &&
+	 test_must_fail git reset --keep)
+'
+
+test_expect_success '"mixed" reset is ok' '
+	(cd .git && git reset)
+'
+
+test_expect_success '"soft" reset is ok' '
+	(cd .git && git reset --soft)
+'
+
+test_expect_success 'hard reset works with GIT_WORK_TREE' '
+	mkdir worktree &&
+	GIT_WORK_TREE=$PWD/worktree GIT_DIR=$PWD/.git git reset --hard &&
+	test_cmp file worktree/file
+'
+
+test_expect_success 'setup bare' '
+	git clone --bare . bare.git &&
+	cd bare.git
+'
+
+test_expect_success '"hard" reset is not allowed in bare' '
+	test_must_fail git reset --hard HEAD^
+'
+
+test_expect_success '"merge" reset is not allowed in bare' '
+	test_must_fail git reset --merge HEAD^
+'
+
+test_expect_success '"keep" reset is not allowed in bare' '
+	test_must_fail git reset --keep HEAD^
+'
+
+test_expect_success '"mixed" reset is not allowed in bare' '
+	test_must_fail git reset --mixed HEAD^
+'
+
+test_expect_success '"soft" reset is allowed in bare' '
+	git reset --soft HEAD^ &&
+	test "$(git show --pretty=format:%s | head -n 1)" = "one"
+'
+
+test_done