src/SSCMS.Cli/Core/ProgressBar.cs

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

using System;
using System.Text;
using System.Threading;

namespace SSCMS.Cli.Core
{
    /// <summary>
    /// https://gist.github.com/DanielSWolf/0ab6a96899cc5377bf54
    /// </summary>
    public class ProgressBar : IDisposable, IProgress<double>
    {
        private const int blockCount = 67;
        private readonly TimeSpan animationInterval = TimeSpan.FromSeconds(1.0 / 8);
        private const string animation = @"|/-\";

        private readonly Timer timer;

        private double currentProgress = 0;
        private string currentText = string.Empty;
        private bool disposed = false;
        private int animationIndex = 0;

        public ProgressBar()
        {
            timer = new Timer(TimerHandler);

            // A progress bar is only for temporary display in a console window.
            // If the console output is redirected to a file, draw nothing.
            // Otherwise, we'll end up with a lot of garbage in the target file.
            if (!Console.IsOutputRedirected)
            {
                ResetTimer();
            }
        }

        public void Report(double value)
        {
            // Make sure value is in [0..1] range
            value = Math.Max(0, Math.Min(1, value));
            Interlocked.Exchange(ref currentProgress, value);
        }

        private void TimerHandler(object state)
        {
            lock (timer)
            {
                if (disposed) return;

                int progressBlockCount = (int) (currentProgress * blockCount);
                int percent = (int) (currentProgress * 100);
                string text = string.Format("[{0}{1}] {2,3}% {3}",
                    new string('#', progressBlockCount), new string('-', blockCount - progressBlockCount),
                    percent,
                    animation[animationIndex++ % animation.Length]);
                UpdateText(text);

                ResetTimer();
            }
        }