func displayUploadProgress()

in example/ecr-push/main.go [111:143]

• 29 lines of code
• 7 McCabe index (conditional complexity)

func displayUploadProgress(ctx context.Context, ongoing *pushjobs, errs chan error) error {
	var (
		ticker = time.NewTicker(100 * time.Millisecond)
		fw     = progress.NewWriter(os.Stdout)
		start  = time.Now()
		done   bool
	)
	defer ticker.Stop()

	for {
		select {
		case <-ticker.C:
			fw.Flush()

			tw := tabwriter.NewWriter(fw, 1, 8, 1, ' ', 0)

			display(tw, ongoing.status(), start)
			tw.Flush()

			if done {
				fw.Flush()
				return nil
			}
		case err := <-errs:
			if err != nil {
				return err
			}
			done = true
		case <-ctx.Done():
			done = true // allow ui to update once more
		}
	}
}