code: public function writeLogLine(Tick $tick)
      {
          // Line segments
          $lineSegs = array();
  
          // 1st Segment is a star
          switch ($tick->getStatus()) {
              case Tick::SUCCESS:
                  $lineSegs[] = sprintf("<fg=green>%s</fg=green>", $this->linePrefixMap[Tick::SUCCESS]);
                  break;
              case Tick::FAIL:
                  $lineSegs[] = sprintf("<fg=red>%s</fg=red>", $this->linePrefixMap[Tick::FAIL]);
                  break;
              case Tick::SKIP:
              default:
                  $lineSegs[] = $this->linePrefixMap[Tick::SKIP];
          }
  
          // Item Progress
          $lineSegs[] = sprintf(
              "[%s%s]",
              $tick->getReport()->getNumItemsProcessed(),
              $tick->getReport()->getTotalItemCount() != Tracker::UNKNOWN ? "/" . $tick->getReport()->getTotalItemCount() : ''
          );
  
          // If verbose, add walltime and item counts
          if ($this->output->getVerbosity() >= OutputInterface::VERBOSITY_VERBOSE) {
              $lineSegs[] = $this->formatSeconds($tick->getReport()->getTimeElapsed());
  
              $lineSegs[] = sprintf(
                  '(<fg=green>%s</fg=green>/%s/<fg=red>%s</fg=red>)',
                  $tick->getReport()->getNumItemsSuccess(),
                  $tick->getReport()->getNumItemsSkip(),
                  $tick->getReport()->getNumItemsFail()
              );
          }
  
          // If very verbose, add memory usage
          if ($this->output->getVerbosity() >= OutputInterface::VERBOSITY_VERY_VERBOSE) {
              $lineSegs[] = sprintf("{%s/%s}",
                  $this->bytesToHuman($tick->getReport()->getMemUsage()),
                  $this->bytesToHuman($tick->getReport()->getMemPeakUsage())
              );
          }
  
          // Add message
          $lineSegs[] = $tick->getMessage() ?: sprintf(
              "Processing item %s",
              number_format($tick->getReport()->getNumItemsProcessed(), 0)
          );
  
          // Output it!
          $this->output->writeln(implode(' ', $lineSegs));
      }
docs: Write Log Line
  
  @param Tick $tick