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66 lines
1.6 KiB
66 lines
1.6 KiB
4 months ago
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/*
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* Copyright (C) 2016 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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#ifndef OTAPREOPT_FILE_PARSING_H_
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#define OTAPREOPT_FILE_PARSING_H_
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#include <fstream>
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#include <functional>
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#include <string_view>
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#include "android-base/unique_fd.h"
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namespace android {
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namespace installd {
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template<typename Func>
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bool ParseFile(std::istream& input_stream, Func parse) {
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while (!input_stream.eof()) {
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// Read the next line.
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std::string line;
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getline(input_stream, line);
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// Is the line empty? Simplifies the next check.
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if (line.empty()) {
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continue;
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}
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// Is this a comment (starts with pound)?
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if (line[0] == '#') {
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continue;
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}
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if (!parse(line)) {
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return false;
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}
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}
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return true;
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}
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template<typename Func>
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bool ParseFile(std::string_view str_file, Func parse) {
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std::ifstream ifs(str_file);
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if (!ifs.is_open()) {
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return false;
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}
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return ParseFile(ifs, parse);
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}
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} // namespace installd
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} // namespace android
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#endif // OTAPREOPT_FILE_PARSING_H_
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