feat: delete zero length file

BilibiliLiveRecordDownLoader/Models/RoomStatus.cs

@@ -372,7 +372,7 @@ private async Task StartRecordAsync(CancellationToken cancellationToken)
 					{
 						_logger.LogInformation(@"录制结束");
 
-						recorder.WriteToFileTask?.ContinueWith(task => ConvertToMp4Async(task.Result).Forget(), CancellationToken.None, TaskContinuationOptions.OnlyOnRanToCompletion, TaskScheduler.Current).Forget();
+						recorder.WriteToFileTask?.ContinueWith(task => ProcessVideoAsync(task.Result).Forget(), CancellationToken.None, TaskContinuationOptions.OnlyOnRanToCompletion, TaskScheduler.Current).Forget();
 					}
 				}
 				catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested)
@@ -410,16 +410,23 @@ private async Task StartRecordAsync(CancellationToken cancellationToken)
 		}
 	}
 
-	private async Task ConvertToMp4Async(string file)
+	private async Task ProcessVideoAsync(string file)
 	{
 		try
 		{
-			if (!(IsAutoConvertMp4 ?? _config.IsAutoConvertMp4))
+			FileInfo fileInfo = new(file);
+			if (!fileInfo.Exists)
+			{
+				return;
+			}
+
+			if (fileInfo.Length is 0)
 			{
+				FileUtils.DeleteWithoutException(fileInfo.FullName);
 				return;
 			}
 
-			if (!File.Exists(file))
+			if (!(IsAutoConvertMp4 ?? _config.IsAutoConvertMp4))
 			{
 				return;
 			}

BilibiliLiveRecordDownLoader/Utils/FileUtils.cs

@@ -1,5 +1,6 @@
 using BilibiliLiveRecordDownLoader.Services;
 using Microsoft.Extensions.Logging;
+using System.Diagnostics;
 using System.IO;
 using System.Runtime.InteropServices;
 using Windows.Win32;
@@ -44,34 +45,51 @@ public static (ulong, ulong, ulong) GetDiskUsage(string path)
 
 	public static void DeleteWithoutException(string? path)
 	{
-		if (path is null || !File.Exists(path))
+		try
 		{
-			return;
+			if (path is null)
+			{
+				return;
+			}
+			File.Delete(path);
 		}
+		catch (Exception ex)
+		{
+			Logger.LogError(ex, $@"删除文件错误：{path}");
+		}
+	}
 
+	public static bool OpenUrl(string path)
+	{
 		try
 		{
-			File.Delete(path);
+			using Process process = new();
+			process.StartInfo.UseShellExecute = true;
+			process.StartInfo.FileName = path;
+			process.Start();
+			return true;
 		}
-		catch (Exception ex)
+		catch
 		{
-			Logger.LogWarning(ex, $@"删除文件错误：{path}");
+			return false;
 		}
 	}
 
-	public static void DeleteFilesWithoutException(string dirPath)
+	public static bool OpenDir(string dir)
 	{
+		if (!Directory.Exists(dir))
+		{
+			return false;
+		}
+
 		try
 		{
-			var di = new DirectoryInfo(dirPath);
-			if (di.Exists)
-			{
-				di.Delete(true);
-			}
+			return OpenUrl(dir);
 		}
 		catch
 		{
 			// ignored
 		}
+		return false;
 	}
 }

BilibiliLiveRecordDownLoader/Utils/Utils.cs

@@ -1,5 +1,3 @@
-using System.Diagnostics;
-using System.IO;
 using System.Reflection;
 using System.Runtime.Serialization;
 using System.Text.Json.Serialization;
@@ -36,40 +34,6 @@ public static string ToHumanBytesString(this ulong size)
 		return ToHumanBytesString((double)size);
 	}
 
-	public static bool OpenUrl(string path)
-	{
-		try
-		{
-			using Process process = new();
-			process.StartInfo.UseShellExecute = true;
-			process.StartInfo.FileName = path;
-			process.Start();
-			return true;
-		}
-		catch
-		{
-			return false;
-		}
-	}
-
-	public static bool OpenDir(string dir)
-	{
-		if (!Directory.Exists(dir))
-		{
-			return false;
-		}
-
-		try
-		{
-			return OpenUrl(dir);
-		}
-		catch
-		{
-			// ignored
-		}
-		return false;
-	}
-
 	public static string? GetAppVersion()
 	{
 		return typeof(App).Assembly.GetName().Version?.ToString();

BilibiliLiveRecordDownLoader/Utils/XmlExtensions.cs

@@ -1,4 +1,4 @@
-using System.Text;
+using System.Runtime.CompilerServices;
 using System.Xml;
 
 namespace BilibiliLiveRecordDownLoader.Utils;
@@ -12,20 +12,27 @@ public static string EscapeXmlChars(this string? str)
 			return string.Empty;
 		}
 
-		var sb = new StringBuilder(str.Length);
-		foreach (var c in str)
+		try
 		{
-			if (XmlConvert.IsXmlChar(c))
-			{
-				sb.Append(c);
-			}
-			else
+			return XmlConvert.VerifyXmlChars(str);
+		}
+		catch (XmlException)
+		{
+			DefaultInterpolatedStringHandler handler = new(2, str.Length);
+			foreach (char c in str)
 			{
-				sb.Append(@"\u");
-				sb.Append($@"{(uint)c:x4}");
+				if (XmlConvert.IsXmlChar(c))
+				{
+					handler.AppendFormatted(c);
+				}
+				else
+				{
+					handler.AppendLiteral(@"\u");
+					handler.AppendFormatted((int)c, @"x4");
+				}
 			}
-		}
 
-		return sb.ToString();
+			return handler.ToStringAndClear();
+		}
 	}
 }

BilibiliLiveRecordDownLoader/ViewModels/SettingViewModel.cs

@@ -108,7 +108,7 @@ private IObservable<Unit> OpenDirectory()
 	{
 		return Observable.Start(() =>
 		{
-			Utils.Utils.OpenDir(Config.MainDir);
+			FileUtils.OpenDir(Config.MainDir);
 			return Unit.Default;
 		});
 	}
@@ -144,7 +144,7 @@ private async Task CheckUpdateAsync(CancellationToken token)
 				};
 				if (await dialog.SafeShowAsync() == ContentDialogResult.Primary)
 				{
-					Utils.Utils.OpenUrl(updateChecker.LatestVersionUrl);
+					FileUtils.OpenUrl(updateChecker.LatestVersionUrl);
 				}
 			}
 			else

BilibiliLiveRecordDownLoader/ViewModels/StreamRecordViewModel.cs

@@ -1,5 +1,6 @@
 using BilibiliLiveRecordDownLoader.Enums;
 using BilibiliLiveRecordDownLoader.Models;
+using BilibiliLiveRecordDownLoader.Utils;
 using BilibiliLiveRecordDownLoader.Views.Dialogs;
 using DynamicData;
 using Microsoft.Extensions.Logging;
@@ -304,7 +305,7 @@ private IObservable<Unit> OpenDir(object? data)
 
 				string path = Path.Combine(_config.MainDir, $@"{room.RoomId}");
 				Directory.CreateDirectory(path);
-				Utils.Utils.OpenDir(path);
+				FileUtils.OpenDir(path);
 			}
 			catch (Exception ex)
 			{
@@ -329,7 +330,7 @@ private IObservable<Unit> OpenLiveUrl(object? data)
 					{
 						continue;
 					}
-					Utils.Utils.OpenUrl($@"https://live.bilibili.com/{room.RoomId}");
+					FileUtils.OpenUrl($@"https://live.bilibili.com/{room.RoomId}");
 				}
 			}
 			catch (Exception ex)