merge(third_party/git): Merge squashed git subtree at v2.23.0 r/373

Merge commit '1b593e1ea4d2af0f6444d9a7788d5d99abd6fde5' as 'third_party/git'

1 files changed, 110 insertions, 0 deletions

diff --git a/third_party/git/t/t1302-repo-version.sh b/third_party/git/t/t1302-repo-version.sh
new file mode 100755
index 000000000000..ce4cff13bbce
--- /dev/null
+++ b/third_party/git/t/t1302-repo-version.sh
@@ -0,0 +1,110 @@
+#!/bin/sh
+#
+# Copyright (c) 2007 Nguyễn Thái Ngọc Duy
+#
+
+test_description='Test repository version check'
+
+. ./test-lib.sh
+
+test_expect_success 'setup' '
+	cat >test.patch <<-\EOF &&
+	diff --git a/test.txt b/test.txt
+	new file mode 100644
+	--- /dev/null
+	+++ b/test.txt
+	@@ -0,0 +1 @@
+	+123
+	EOF
+
+	test_create_repo "test" &&
+	test_create_repo "test2" &&
+	git config --file=test2/.git/config core.repositoryformatversion 99
+'
+
+test_expect_success 'gitdir selection on normal repos' '
+	echo 0 >expect &&
+	git config core.repositoryformatversion >actual &&
+	git -C test config core.repositoryformatversion >actual2 &&
+	test_cmp expect actual &&
+	test_cmp expect actual2
+'
+
+test_expect_success 'gitdir selection on unsupported repo' '
+	# Make sure it would stop at test2, not trash
+	test_expect_code 1 git -C test2 config core.repositoryformatversion >actual
+'
+
+test_expect_success 'gitdir not required mode' '
+	git apply --stat test.patch &&
+	git -C test apply --stat ../test.patch &&
+	git -C test2 apply --stat ../test.patch
+'
+
+test_expect_success 'gitdir required mode' '
+	git apply --check --index test.patch &&
+	git -C test apply --check --index ../test.patch &&
+	test_must_fail git -C test2 apply --check --index ../test.patch
+'
+
+check_allow () {
+	git rev-parse --git-dir >actual &&
+	echo .git >expect &&
+	test_cmp expect actual
+}
+
+check_abort () {
+	test_must_fail git rev-parse --git-dir
+}
+
+# avoid git-config, since it cannot be trusted to run
+# in a repository with a broken version
+mkconfig () {
+	echo '[core]' &&
+	echo "repositoryformatversion = $1" &&
+	shift &&
+
+	if test $# -gt 0; then
+		echo '[extensions]' &&
+		for i in "$@"; do
+			echo "$i"
+		done
+	fi
+}
+
+while read outcome version extensions; do
+	test_expect_success "$outcome version=$version $extensions" "
+		mkconfig $version $extensions >.git/config &&
+		check_${outcome}
+	"
+done <<\EOF
+allow 0
+allow 1
+allow 1 noop
+abort 1 no-such-extension
+allow 0 no-such-extension
+EOF
+
+test_expect_success 'precious-objects allowed' '
+	mkconfig 1 preciousObjects >.git/config &&
+	check_allow
+'
+
+test_expect_success 'precious-objects blocks destructive repack' '
+	test_must_fail git repack -ad
+'
+
+test_expect_success 'other repacks are OK' '
+	test_commit foo &&
+	git repack
+'
+
+test_expect_success 'precious-objects blocks prune' '
+	test_must_fail git prune
+'
+
+test_expect_success 'gc runs without complaint' '
+	git gc
+'
+
+test_done