public static void makeHar(JobContext context, String dir, String harFile) throws IOException {
//    Configuration conf = context.getConfiguration();
//    Credentials creds = context.getCredentials();

//    HCatUtil.logAllTokens(LOG,context);

    int lastSep = harFile.lastIndexOf(Path.SEPARATOR_CHAR);
    Path archivePath = new Path(harFile.substring(0, lastSep));
    final String[] args = {
      "-archiveName",
      harFile.substring(lastSep + 1, harFile.length()),
      "-p",
      dir,
      "*",
      archivePath.toString()
    };
//    for (String arg : args){
//      LOG.info("Args to har : "+ arg);
//    }
    try {
      Configuration newConf = new Configuration();
      FileSystem fs = archivePath.getFileSystem(newConf);

      String hadoopTokenFileLocationEnvSetting = System.getenv(HCatConstants.SYSENV_HADOOP_TOKEN_FILE_LOCATION);
      if ((hadoopTokenFileLocationEnvSetting != null) && (!hadoopTokenFileLocationEnvSetting.isEmpty())) {
        newConf.set(HCatConstants.CONF_MAPREDUCE_JOB_CREDENTIALS_BINARY, hadoopTokenFileLocationEnvSetting);
//      LOG.info("System.getenv(\"HADOOP_TOKEN_FILE_LOCATION\") =["+  System.getenv("HADOOP_TOKEN_FILE_LOCATION")+"]");
      }
//      for (FileStatus ds : fs.globStatus(new Path(dir, "*"))){
//        LOG.info("src : "+ds.getPath().toUri().toString());
//      }

      final HadoopArchives har = new HadoopArchives(newConf);
      int rc = ToolRunner.run(har, args);
      if (rc != 0) {
        throw new Exception("Har returned error code " + rc);
      }

//      for (FileStatus hs : fs.globStatus(new Path(harFile, "*"))){
//        LOG.info("dest : "+hs.getPath().toUri().toString());
//      }
//      doHarCheck(fs,harFile);
//      LOG.info("Nuking " + dir);
      fs.delete(new Path(dir), true);
    } catch (Exception e) {
      throw new HCatException("Error creating Har [" + harFile + "] from [" + dir + "]", e);
    }
  }
Creates a har file from the contents of a given directory, using that as root.
@param dir Directory to archive
@param harFile The HAR file to create
hcatalog/core/src/main/java/org/apache/hive/hcatalog/har/HarOutputCommitterPostProcessor.java