1 /*
2  * Copyright (C) 2019 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 #define LOG_TAG "sysprop_api_checker_main"
18 
19 #include <android-base/logging.h>
20 #include <cstdio>
21 #include <cstdlib>
22 #include <string>
23 
24 #include <getopt.h>
25 
26 #include "ApiChecker.h"
27 #include "Common.h"
28 
29 namespace {
30 
PrintUsage(const char * exe_name)31 [[noreturn]] void PrintUsage(const char* exe_name) {
32   std::printf("Usage: %s latest-file current-file\n", exe_name);
33   std::exit(EXIT_FAILURE);
34 }
35 
36 }  // namespace
37 
main(int argc,char * argv[])38 int main(int argc, char* argv[]) {
39   if (argc != 3) {
40     std::fprintf(stderr, "%s needs 2 arguments\n", argv[0]);
41     PrintUsage(argv[0]);
42   }
43 
44   sysprop::SyspropLibraryApis latest, current;
45 
46   if (auto res = ParseApiFile(argv[1]); res.ok()) {
47     latest = std::move(*res);
48   } else {
49     LOG(FATAL) << "parsing sysprop_library API file " << argv[1]
50                << " failed: " << res.error();
51   }
52 
53   if (auto res = ParseApiFile(argv[2]); res.ok()) {
54     current = std::move(*res);
55   } else {
56     LOG(FATAL) << "parsing sysprop_library API file " << argv[2]
57                << " failed: " << res.error();
58   }
59 
60   if (auto res = CompareApis(latest, current); !res.ok()) {
61     LOG(ERROR) << "sysprop_library API check failed:\n" << res.error();
62     return EXIT_FAILURE;
63   }
64 }
65