sparse-checkout: use C-style quotes in 'list' subcommand

When in cone mode, the 'git sparse-checkout list' subcommand lists
the directories included in the sparse cone. When these directories
contain odd characters, such as a backslash, then we need to use
C-style quotes similar to 'git ls-tree'.

Signed-off-by: Derrick Stolee <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: derrickstolee

builtin/sparse-checkout.c

@@ -78,8 +78,10 @@ static int sparse_checkout_list(int argc, const char **argv)
 
 		string_list_sort(&sl);
 
-		for (i = 0; i < sl.nr; i++)
-			printf("%s\n", sl.items[i].string);
+		for (i = 0; i < sl.nr; i++) {
+			quote_c_style(sl.items[i].string, NULL, stdout, 0);
+			printf("\n");
+		}
 
 		return 0;
 	}

t/t1091-sparse-checkout-builtin.sh

@@ -406,7 +406,8 @@ test_expect_success BSLASHPSPEC 'pattern-checks: escaped "*"' '
 	EOF
 	test_cmp expect escaped/.git/info/sparse-checkout &&
 	check_read_tree_errors escaped "a zbad\\dir zdoes*exist" &&
-	git -C escaped ls-tree -d --name-only HEAD | git -C escaped sparse-checkout set --stdin &&
+	git -C escaped ls-tree -d --name-only HEAD >list-expect &&
+	git -C escaped sparse-checkout set --stdin <list-expect &&
 	cat >expect <<-\EOF &&
 	/*
 	!/*/
@@ -417,7 +418,9 @@ test_expect_success BSLASHPSPEC 'pattern-checks: escaped "*"' '
 	/zdoes\*exist/
 	EOF
 	test_cmp expect escaped/.git/info/sparse-checkout &&
-	check_files escaped "a deep folder1 folder2 zbad\\dir zdoes*exist"
+	check_files escaped "a deep folder1 folder2 zbad\\dir zdoes*exist" &&
+	git -C escaped sparse-checkout list >list-actual &&
+	test_cmp list-expect list-actual
 '
 
 test_done