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      1 /*
      2  * Copyright (C) 2015 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 #include <string.h>
     18 
     19 #include <string>
     20 #include <vector>
     21 
     22 #include <android-base/logging.h>
     23 
     24 #include "command.h"
     25 #include "utils.h"
     26 
     27 int main(int argc, char** argv) {
     28   InitLogging(argv, android::base::StderrLogger);
     29   std::vector<std::string> args;
     30   android::base::LogSeverity log_severity = android::base::WARNING;
     31 
     32   for (int i = 1; i < argc; ++i) {
     33     if (strcmp(argv[i], "--help") == 0 || strcmp(argv[i], "-h") == 0) {
     34       args.insert(args.begin(), "help");
     35     } else if (strcmp(argv[i], "--log") == 0) {
     36       if (i + 1 < argc) {
     37         ++i;
     38         if (!GetLogSeverity(argv[i], &log_severity)) {
     39           LOG(ERROR) << "Unknown log severity: " << argv[i];
     40           return 1;
     41         }
     42       } else {
     43         LOG(ERROR) << "Missing argument for --log option.\n";
     44         return 1;
     45       }
     46     } else {
     47       args.push_back(argv[i]);
     48     }
     49   }
     50   android::base::ScopedLogSeverity severity(log_severity);
     51 
     52   if (args.empty()) {
     53     args.push_back("help");
     54   }
     55   std::unique_ptr<Command> command = CreateCommandInstance(args[0]);
     56   if (command == nullptr) {
     57     LOG(ERROR) << "malformed command line: unknown command " << args[0];
     58     return 1;
     59   }
     60   std::string command_name = args[0];
     61   args.erase(args.begin());
     62 
     63   LOG(DEBUG) << "command '" << command_name << "' starts running";
     64   bool result = command->Run(args);
     65   LOG(DEBUG) << "command '" << command_name << "' "
     66              << (result ? "finished successfully" : "failed");
     67   return result ? 0 : 1;
     68 }
     69