1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef OTAPREOPT_FILE_PARSING_H_
18#define OTAPREOPT_FILE_PARSING_H_
19
20#include <fstream>
21#include <functional>
22#include <string>
23
24namespace android {
25namespace installd {
26
27bool ParseFile(const std::string& strFile, std::function<bool (const std::string&)> parse) {
28    std::ifstream input_stream(strFile);
29
30    if (!input_stream.is_open()) {
31        return false;
32    }
33
34    while (!input_stream.eof()) {
35        // Read the next line.
36        std::string line;
37        getline(input_stream, line);
38
39        // Is the line empty? Simplifies the next check.
40        if (line.empty()) {
41            continue;
42        }
43
44        // Is this a comment (starts with pound)?
45        if (line[0] == '#') {
46            continue;
47        }
48
49        if (!parse(line)) {
50            return false;
51        }
52    }
53
54    return true;
55}
56
57}  // namespace installd
58}  // namespace android
59
60#endif  // OTAPREOPT_FILE_PARSING_H_
61