tests: don't assume a .git/info for .git/info/sparse-checkout

Change those tests that assumed that a .git/info directory would be
created for them when writing .git/info/sparse-checkout to explicitly
create the directory by setting "TEST_CREATE_REPO_NO_TEMPLATE=1"
before sourcing test-lib.sh, and using the "--template=" argument to
"git clone".

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t1011-read-tree-sparse-checkout.sh

@@ -11,6 +11,7 @@ test_description='sparse checkout tests
   A	init.t
 '
 
+TEST_CREATE_REPO_NO_TEMPLATE=1
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/lib-read-tree.sh
 
@@ -53,6 +54,7 @@ test_expect_success 'read-tree without .git/info/sparse-checkout' '
 '
 
 test_expect_success 'read-tree with .git/info/sparse-checkout but disabled' '
+	mkdir .git/info &&
 	echo >.git/info/sparse-checkout &&
 	read_tree_u_must_succeed -m -u HEAD &&
 	git ls-files -t >result &&

t/t1090-sparse-checkout-scope.sh

@@ -5,6 +5,7 @@ test_description='sparse checkout scope tests'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_CREATE_REPO_NO_TEMPLATE=1
 . ./test-lib.sh
 
 test_expect_success 'setup' '
@@ -25,6 +26,7 @@ test_expect_success 'create feature branch' '
 
 test_expect_success 'perform sparse checkout of main' '
 	git config --local --bool core.sparsecheckout true &&
+	mkdir .git/info &&
 	echo "!/*" >.git/info/sparse-checkout &&
 	echo "/a" >>.git/info/sparse-checkout &&
 	echo "/c" >>.git/info/sparse-checkout &&
@@ -73,7 +75,7 @@ test_expect_success 'skip-worktree on files outside sparse patterns' '
 
 test_expect_success 'in partial clone, sparse checkout only fetches needed blobs' '
 	test_create_repo server &&
-	git clone "file://$(pwd)/server" client &&
+	git clone --template= "file://$(pwd)/server" client &&
 
 	test_config -C server uploadpack.allowfilter 1 &&
 	test_config -C server uploadpack.allowanysha1inwant 1 &&
@@ -85,6 +87,7 @@ test_expect_success 'in partial clone, sparse checkout only fetches needed blobs
 	git -C server commit -m message &&
 
 	test_config -C client core.sparsecheckout 1 &&
+	mkdir client/.git/info &&
 	echo "!/*" >client/.git/info/sparse-checkout &&
 	echo "/a" >>client/.git/info/sparse-checkout &&
 	git -C client fetch --filter=blob:none origin &&

t/t2018-checkout-branch.sh

@@ -2,6 +2,7 @@
 
 test_description='checkout'
 
+TEST_CREATE_REPO_NO_TEMPLATE=1
 . ./test-lib.sh
 
 # Arguments: [!] <branch> <oid> [<checkout options>]
@@ -257,11 +258,12 @@ test_expect_success 'checkout -b to a new branch preserves mergeable changes des
 		git checkout branch1-scratch &&
 		test_might_fail git branch -D branch3 &&
 		git config core.sparseCheckout false &&
-		rm .git/info/sparse-checkout" &&
+		rm -rf .git/info" &&
 
 	test_commit file2 &&
 
 	echo stuff >>file1 &&
+	mkdir .git/info &&
 	echo file2 >.git/info/sparse-checkout &&
 	git config core.sparseCheckout true &&
 

t/t3507-cherry-pick-conflict.sh

@@ -12,6 +12,7 @@ test_description='test cherry-pick and revert with conflicts
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_CREATE_REPO_NO_TEMPLATE=1
 . ./test-lib.sh
 
 pristine_detach () {
@@ -558,6 +559,7 @@ test_expect_success 'cherry-pick preserves sparse-checkout' '
 		echo \"/*\" >.git/info/sparse-checkout
 		git read-tree --reset -u HEAD
 		rm .git/info/sparse-checkout" &&
+	mkdir .git/info &&
 	echo /unrelated >.git/info/sparse-checkout &&
 	git read-tree --reset -u HEAD &&
 	test_must_fail git cherry-pick -Xours picked>actual &&

t/t6435-merge-sparse.sh

@@ -2,6 +2,7 @@
 
 test_description='merge with sparse files'
 
+TEST_CREATE_REPO_NO_TEMPLATE=1
 . ./test-lib.sh
 
 # test_file $filename $content
@@ -26,6 +27,7 @@ test_expect_success 'setup' '
 	git rm modify_delete &&
 	test_commit_this ours &&
 	git config core.sparseCheckout true &&
+	mkdir .git/info &&
 	echo "/checked-out" >.git/info/sparse-checkout &&
 	git reset --hard &&
 	test_must_fail git merge theirs

t/t7418-submodule-sparse-gitmodules.sh

@@ -31,8 +31,9 @@ test_expect_success 'sparse checkout setup which hides .gitmodules' '
 		test_tick &&
 		git commit -m "Add submodule"
 	) &&
-	git clone upstream super &&
+	git clone --template= upstream super &&
 	(cd super &&
+		mkdir .git/info &&
 		cat >.git/info/sparse-checkout <<-\EOF &&
 		/*
 		!/.gitmodules