blob: b195e82467e8991a3fabebb3f4d797421fbdb7a6 [file] [log] [blame]
/*
* Copyright (C) 2019 The Android Open Source Project
*
* 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 "linkerconfig/variables.h"
#include <android-base/properties.h>
#include "linkerconfig/log.h"
namespace android {
namespace linkerconfig {
namespace modules {
std::map<std::string, std::string> Variables::variables_;
std::optional<std::string> Variables::GetValue(const std::string& variable) {
// If variable is in predefined key-value pair, use this value
if (variables_.find(variable) != variables_.end() &&
!variables_[variable].empty()) {
return {variables_[variable]};
}
// If variable is defined as property, use this value
std::string prop_value = android::base::GetProperty(variable, "");
if (!prop_value.empty()) {
return {prop_value};
}
// If cannot find variable, return default value
return std::nullopt;
}
void Variables::AddValue(const std::string& key, const std::string& value) {
variables_[key] = value;
}
void Variables::Load(std::map<std::string, std::string> predefined_variables) {
variables_.merge(predefined_variables);
}
} // namespace modules
} // namespace linkerconfig
} // namespace android