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

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

third_party/git/t/t2107-update-index-basic.sh

@@ -0,0 +1,96 @@
+#!/bin/sh
+
+test_description='basic update-index tests
+
+Tests for command-line parsing and basic operation.
+'
+
+. ./test-lib.sh
+
+test_expect_success 'update-index --nonsense fails' '
+	test_must_fail git update-index --nonsense 2>msg &&
+	cat msg &&
+	test -s msg
+'
+
+test_expect_success 'update-index --nonsense dumps usage' '
+	test_expect_code 129 git update-index --nonsense 2>err &&
+	test_i18ngrep "[Uu]sage: git update-index" err
+'
+
+test_expect_success 'update-index -h with corrupt index' '
+	mkdir broken &&
+	(
+		cd broken &&
+		git init &&
+		>.git/index &&
+		test_expect_code 129 git update-index -h >usage 2>&1
+	) &&
+	test_i18ngrep "[Uu]sage: git update-index" broken/usage
+'
+
+test_expect_success '--cacheinfo complains of missing arguments' '
+	test_must_fail git update-index --cacheinfo
+'
+
+test_expect_success '--cacheinfo does not accept blob null sha1' '
+	echo content >file &&
+	git add file &&
+	git rev-parse :file >expect &&
+	test_must_fail git update-index --cacheinfo 100644 $ZERO_OID file &&
+	git rev-parse :file >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success '--cacheinfo does not accept gitlink null sha1' '
+	git init submodule &&
+	(cd submodule && test_commit foo) &&
+	git add submodule &&
+	git rev-parse :submodule >expect &&
+	test_must_fail git update-index --cacheinfo 160000 $ZERO_OID submodule &&
+	git rev-parse :submodule >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success '--cacheinfo mode,sha1,path (new syntax)' '
+	echo content >file &&
+	git hash-object -w --stdin <file >expect &&
+
+	git update-index --add --cacheinfo 100644 "$(cat expect)" file &&
+	git rev-parse :file >actual &&
+	test_cmp expect actual &&
+
+	git update-index --add --cacheinfo "100644,$(cat expect),elif" &&
+	git rev-parse :elif >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success '.lock files cleaned up' '
+	mkdir cleanup &&
+	(
+	cd cleanup &&
+	mkdir worktree &&
+	git init repo &&
+	cd repo &&
+	git config core.worktree ../../worktree &&
+	# --refresh triggers late setup_work_tree,
+	# active_cache_changed is zero, rollback_lock_file fails
+	git update-index --refresh &&
+	! test -f .git/index.lock
+	)
+'
+
+test_expect_success '--chmod=+x and chmod=-x in the same argument list' '
+	>A &&
+	>B &&
+	git add A B &&
+	git update-index --chmod=+x A --chmod=-x B &&
+	cat >expect <<-EOF &&
+	100755 $EMPTY_BLOB 0	A
+	100644 $EMPTY_BLOB 0	B
+	EOF
+	git ls-files --stage A B >actual &&
+	test_cmp expect actual
+'
+
+test_done