content: /*
   * Copyright 2021 4Paradigm
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com._4paradigm.openmldb.taskmanager.utils;
  
  import java.io.BufferedInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.InputStream;
  import java.io.IOException;
  import java.util.Arrays;
  import java.util.List;
  
  public class VersionCli {
  
      public static void main(String[] argv) {
          try {
              System.out.println(VersionCli.getVersion());
          } catch (Exception e) {
              e.printStackTrace();
          }
      }
  
      public static String readInputStreamAsString(InputStream in) throws IOException {
          BufferedInputStream bis = new BufferedInputStream(in);
          ByteArrayOutputStream buf = new ByteArrayOutputStream();
          int result = bis.read();
          while(result != -1) {
              byte b = (byte)result;
              buf.write(b);
              result = bis.read();
          }
          return buf.toString();
      }
      
      public static String getVersion() throws Exception {
          InputStream stream = VersionCli.class.getClassLoader().getResourceAsStream("git.properties");
          if (stream == null) {
              throw new Exception("Fail to get TaskManager version from file of git.properties");
          }
          // Do not use apache IOUtils to get rid of the dependency
          //List<String> gitVersionStrList = IOUtils.readLines(stream, "UTF-8");
          String versionStr = readInputStreamAsString(stream);
          List<String> gitVersionStrList = Arrays.asList(versionStr.split("\n"));
  
          // Only get build version and git commit abbrev
          String version = "";
          String gitCommit = "";
          for (String line : gitVersionStrList) {
              if (line.startsWith("git.build.version=")) {
                  version = line.split("=")[1];
              }
              if (line.startsWith("git.commit.id.abbrev=")) {
                  gitCommit = line.split("=")[1];
              }
          }
  
          return version + "-" + gitCommit;
      }
  }
  