54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "linkerconfig/stringutil.h"
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#include <set>
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#include <sstream>
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#include <vector>
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#include <android-base/strings.h>
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namespace android {
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namespace linkerconfig {
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namespace modules {
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std::string TrimPrefix(const std::string& s, const std::string& prefix) {
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if (android::base::StartsWith(s, prefix)) {
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return s.substr(prefix.size());
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}
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return s;
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}
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// merge a list of libs into a single value (concat with ":")
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std::string MergeLibs(const std::vector<std::string>& libs) {
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std::set<std::string> seen;
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std::ostringstream oss;
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for (const auto& part : libs) {
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std::istringstream iss(part);
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std::string lib;
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while (std::getline(iss, lib, ':')) {
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if (!lib.empty() && seen.insert(lib).second) { // for a new lib
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if (oss.tellp() > 0) {
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oss << ':';
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}
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oss << lib;
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}
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}
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}
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return oss.str();
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}
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} // namespace modules
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} // namespace linkerconfig
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} // namespace android
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