[CLI][videodownload] Add options -k and -K to keep cache folder

TwitchDownloaderCLI/Modes/Arguments/VideoDownloadArgs.cs

@@ -1,4 +1,4 @@
-using CommandLine;
+using CommandLine;
 
 namespace TwitchDownloaderCLI.Modes.Arguments
 {
@@ -14,6 +14,12 @@ public class VideoDownloadArgs : ITwitchDownloaderArgs
         [Option('q', "quality", HelpText = "The quality the program will attempt to download.")]
         public string Quality { get; set; }
 
+        [Option('K', "keepcache", Required = false, HelpText = "Keep entire cache folder. Overrides \"-k\".")]
+        public bool KeepCache { get; set; }
+
+        [Option('k', "keepcachenoparts", Required = false, HelpText = "Keep cache folder except .ts parts.")]
+        public bool KeepCacheNoParts { get; set; }
+
         [Option('b', "beginning", HelpText = "Time in seconds to crop beginning.")]
         public int CropBeginningTime { get; set; }
 

TwitchDownloaderCLI/Modes/DownloadVideo.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.IO;
 using System.Threading;
 using TwitchDownloaderCLI.Modes.Arguments;
@@ -70,6 +70,8 @@ private static VideoDownloadOptions GetDownloadOptions(VideoDownloadArgs inputOp
                     ".m4a" => "Audio",
                     _ => throw new ArgumentException("Only MP4 and M4A audio files are supported.")
                 },
+                KeepCache = inputOptions.KeepCache,
+                KeepCacheNoParts = inputOptions.KeepCacheNoParts,
                 CropBeginning = inputOptions.CropBeginningTime > 0.0,
                 CropBeginningTime = inputOptions.CropBeginningTime,
                 CropEnding = inputOptions.CropEndingTime > 0.0,
@@ -81,4 +83,4 @@ private static VideoDownloadOptions GetDownloadOptions(VideoDownloadArgs inputOp
             return downloadOptions;
         }
     }
-}
+}

TwitchDownloaderCLI/README.md

@@ -28,6 +28,12 @@ File the program will output to. File extension will be used to determine downlo
 **-q / --quality**
 The quality the program will attempt to download, for example "1080p60", if not found will download highest quality stream.
 
+**-K / --keepcache**
+Keep entire cache folder. Overrides "-k".
+
+**-k / --keepcachenoparts**
+Keep cache folder except .ts parts.
+
 **-b / --beginning**
 Time in seconds to crop beginning. For example if I had a 10 second stream but only wanted the last 7 seconds of it I would use `-b 3` to skip the first 3 seconds.
 
@@ -435,4 +441,4 @@ For Linux users, ensure both `fontconfig` and `libfontconfig1` are installed. `a
 Some distros, like Linux Alpine, lack fonts for some languages (Arabic, Persian, Thai, etc.) If this is the case for you, install additional fonts families such as [Noto](https://fonts.google.com/noto/specimen/Noto+Sans) or check your distro's wiki page on fonts as it may have an install command for this specific scenario, such as the [Linux Alpine](https://wiki.alpinelinux.org/wiki/Fonts) font page.
 
 The list file for `tsmerge` may contain relative or absolute paths, with one path per line.
-Alternatively, the list file may also be an M3U8 playlist file.
+Alternatively, the list file may also be an M3U8 playlist file.

TwitchDownloaderCore/Options/VideoDownloadOptions.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.IO;
 
 namespace TwitchDownloaderCore.Options
@@ -8,6 +8,8 @@ public class VideoDownloadOptions
         public int Id { get; set; }
         public string Quality { get; set; }
         public string Filename { get; set; }
+        public bool KeepCache { get; set; }
+        public bool KeepCacheNoParts { get; set; }
         public bool CropBeginning { get; set; }
         public double CropBeginningTime { get; set; }
         public bool CropEnding { get; set; }

TwitchDownloaderCore/VideoDownloader.cs

@@ -32,6 +32,8 @@ public VideoDownloader(VideoDownloadOptions videoDownloadOptions, IProgress<Prog
                 string.IsNullOrWhiteSpace(downloadOptions.TempFolder) ? Path.GetTempPath() : downloadOptions.TempFolder,
                 "TwitchDownloader");
             _progress = progress;
+
+            _shouldClearCache = !(downloadOptions.KeepCacheNoParts || downloadOptions.KeepCache);
         }
 
         public async Task DownloadAsync(CancellationToken cancellationToken)
@@ -669,11 +671,14 @@ private async Task CombineVideoParts(string downloadFolder, IEnumerable<M3U8.Str
                         await fs.CopyToAsync(outputStream, cancellationToken).ConfigureAwait(false);
                     }
 
-                    try
+                    if (!downloadOptions.KeepCache && downloadOptions.KeepCacheNoParts)
                     {
-                        File.Delete(partFile);
+                        try
+                        {
+                            File.Delete(partFile);
+                        }
+                        catch { /* If we can't delete, oh well. It could get cleanup up later anyways */ }
                     }
-                    catch { /* If we can't delete, oh well. It should get cleanup up later anyways */ }
                 }
 
                 doneCount++;
@@ -709,4 +714,4 @@ private static void Cleanup(string downloadFolder)
             catch (IOException) { } // Directory is probably being used by another process
         }
     }
-}
+}