tests: Add proper quoting when system calling the shell

1 files changed, 34 insertions, 0 deletions

diff --git a/test/utils/shell_quoting.hpp b/test/utils/shell_quoting.hpp
new file mode 100644
index 00000000..16866b8a
--- /dev/null
+++ b/test/utils/shell_quoting.hpp
@@ -0,0 +1,34 @@
+// Copyright 2023 Huawei Cloud Computing Technology Co., Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <string>
+
+[[nodiscard]] static inline auto QuoteForShell(std::string const& input)
+    -> std::string {
+    // To correctly quote a string for shell, replace ever ~'~ char with ~'\''~
+    // and then put the resulting inside a pair of ~'~s.
+    auto output = std::string(R"(')");
+    auto start = input.begin();
+    auto pos = input.find('\'');
+    while (pos != std::string::npos) {
+        output.append(
+            start, start + static_cast<std::string::difference_type>(pos + 1));
+        output += R"(\'')";
+        start += static_cast<std::string::difference_type>(pos + 1);
+        pos = input.find('\'', pos + 1);
+    }
+    output.append(start, input.end());
+    output += R"(')";
+    return output;
+}