1 /*
2 * Copyright (C) 2018 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_cpp"
18
19 #include <android-base/logging.h>
20 #include <android-base/result.h>
21 #include <cstdio>
22 #include <cstdlib>
23 #include <string>
24
25 #include <getopt.h>
26
27 #include "CppGen.h"
28
29 using android::base::Result;
30
31 namespace {
32
33 struct Arguments {
34 std::string input_file_path;
35 std::string header_dir;
36 std::string public_header_dir;
37 std::string source_dir;
38 std::string include_name;
39 };
40
PrintUsage(const char * exe_name)41 [[noreturn]] void PrintUsage(const char* exe_name) {
42 std::printf(
43 "Usage: %s --header-dir dir --source-dir dir "
44 "--include-name name --public-header-dir dir "
45 "sysprop_file\n",
46 exe_name);
47 std::exit(EXIT_FAILURE);
48 }
49
ParseArgs(int argc,char * argv[])50 Result<Arguments> ParseArgs(int argc, char* argv[]) {
51 Arguments ret;
52 for (;;) {
53 static struct option long_options[] = {
54 {"header-dir", required_argument, 0, 'h'},
55 {"public-header-dir", required_argument, 0, 'p'},
56 {"source-dir", required_argument, 0, 'c'},
57 {"include-name", required_argument, 0, 'n'},
58 };
59
60 int opt = getopt_long_only(argc, argv, "", long_options, nullptr);
61 if (opt == -1) break;
62
63 switch (opt) {
64 case 'h':
65 ret.header_dir = optarg;
66 break;
67 case 'p':
68 ret.public_header_dir = optarg;
69 break;
70 case 'c':
71 ret.source_dir = optarg;
72 break;
73 case 'n':
74 ret.include_name = optarg;
75 break;
76 default:
77 PrintUsage(argv[0]);
78 }
79 }
80
81 if (optind >= argc) {
82 return Errorf("No input file specified");
83 }
84
85 if (optind + 1 < argc) {
86 return Errorf("More than one input file");
87 }
88
89 if (ret.header_dir.empty() || ret.public_header_dir.empty() ||
90 ret.source_dir.empty() || ret.include_name.empty()) {
91 PrintUsage(argv[0]);
92 }
93
94 ret.input_file_path = argv[optind];
95
96 return ret;
97 }
98
99 } // namespace
100
main(int argc,char * argv[])101 int main(int argc, char* argv[]) {
102 Arguments args;
103 if (auto res = ParseArgs(argc, argv); res.ok()) {
104 args = std::move(*res);
105 } else {
106 LOG(ERROR) << argv[0] << ": " << res.error();
107 PrintUsage(argv[0]);
108 }
109
110 if (auto res = GenerateCppFiles(args.input_file_path, args.header_dir,
111 args.public_header_dir, args.source_dir,
112 args.include_name);
113 !res.ok()) {
114 LOG(FATAL) << "Error during generating cpp sysprop from "
115 << args.input_file_path << ": " << res.error();
116 }
117 }
118