1 /*
2 * Copyright (C) 2020 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 #include <fcntl.h>
17 #include <google/protobuf/io/zero_copy_stream_impl.h>
18 #include <google/protobuf/text_format.h>
19
20 #include <filesystem>
21
22 #include "golddata.pb.h"
23
24 using namespace std;
25
ConvertPbtxtToPb(const filesystem::path & pbtxtFile,const filesystem::path & pbOutDir)26 bool ConvertPbtxtToPb(const filesystem::path& pbtxtFile, const filesystem::path& pbOutDir) {
27 // parse plain text from .pbtxt.
28 android::net::GoldTest goldTest;
29
30 int fd = open(pbtxtFile.c_str(), O_RDONLY);
31 if (fd < 0) {
32 cerr << "Failed to open " << pbtxtFile << ", " << strerror(errno) << endl;
33 return false;
34 }
35 {
36 google::protobuf::io::FileInputStream fileInput(fd);
37 fileInput.SetCloseOnDelete(true);
38 if (!google::protobuf::TextFormat::Parse(&fileInput, &goldTest)) {
39 cerr << "Failed to parse " << pbtxtFile << endl;
40 return false;
41 }
42 }
43
44 // write marshalled message into .pb file
45 filesystem::path pbFile = pbOutDir / pbtxtFile.filename();
46 pbFile.replace_extension(".pb");
47 fd = open(pbFile.c_str(), O_CREAT | O_WRONLY | O_TRUNC, 0660);
48 if (fd < 0) {
49 cerr << "Failed to open " << pbFile << ", " << strerror(errno) << endl;
50 return false;
51 }
52 {
53 google::protobuf::io::FileOutputStream fileOutputStream(fd);
54 fileOutputStream.SetCloseOnDelete(true);
55 if (!goldTest.SerializeToZeroCopyStream(&fileOutputStream)) {
56 cerr << "Failed to serialize " << pbFile << endl;
57 filesystem::remove(pbFile);
58 return false;
59 }
60 }
61
62 cout << "Generate " << pbFile << " successfully" << endl;
63 return true;
64 }
65
main(int argc,char const * const * argv)66 int main(int argc, char const* const* argv) {
67 filesystem::path pbtxtFile;
68 filesystem::path pbOutDir;
69 const string arg_in = "--in_file=";
70 const string arg_out = "--out_dir=";
71
72 for (int i = 1; i < argc; i++) {
73 std::string arg = argv[i];
74 if (arg.find(arg_in) == 0) {
75 pbtxtFile = filesystem::path(arg.substr(arg_in.size()));
76 } else if (arg.find(arg_out) == 0) {
77 pbOutDir = filesystem::path(arg.substr(arg_out.size()));
78 } else {
79 cerr << "Unknown argument: " << arg << endl;
80 exit(1);
81 }
82 }
83
84 if (pbtxtFile.empty() || pbOutDir.empty()) {
85 cerr << arg_in << " or " << arg_out << " is unassigned" << endl;
86 exit(1);
87 }
88 if (!ConvertPbtxtToPb(pbtxtFile, pbOutDir)) {
89 cerr << "Failed to convert " << pbtxtFile << endl;
90 exit(1);
91 }
92 }
93