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// Copyright 2019 The Dawn Authors
//
// 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.
#ifndef COMMON_SYSTEMUTILS_H_
#define COMMON_SYSTEMUTILS_H_
#include "common/Platform.h"
#include <string>
const char* GetPathSeparator();
std::string GetEnvironmentVar(const char* variableName);
bool SetEnvironmentVar(const char* variableName, const char* value);
std::string GetExecutableDirectory();
#ifdef DAWN_PLATFORM_MACOS
void GetMacOSVersion(int32_t* majorVersion, int32_t* minorVersion = nullptr);
bool IsMacOSVersionAtLeast(uint32_t majorVersion, uint32_t minorVersion = 0);
#endif
class ScopedEnvironmentVar {
public:
ScopedEnvironmentVar() = default;
ScopedEnvironmentVar(const char* variableName, const char* value);
~ScopedEnvironmentVar();
ScopedEnvironmentVar(const ScopedEnvironmentVar& rhs) = delete;
ScopedEnvironmentVar& operator=(const ScopedEnvironmentVar& rhs) = delete;
bool Set(const char* variableName, const char* value);
private:
std::string mName;
std::string mOriginalValue;
bool mIsSet = false;
};
#endif // COMMON_SYSTEMUTILS_H_