code_style: command cancellation

Signed-off-by: leo <longshuang@msn.cn>

Author: love-linger

src/App.Extensions.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Text;
+using System.Threading;
 using Avalonia.Media;
 
 namespace SourceGit
@@ -79,6 +80,12 @@ public static T Use<T>(this T cmd, Models.ICommandLog log) where T : Commands.Co
             cmd.Log = log;
             return cmd;
         }
+
+        public static T WithCancellation<T>(this T cmd, CancellationToken token) where T : Commands.Command
+        {
+            cmd.CancellationToken = token;
+            return cmd;
+        }
     }
 
     public static class DirectoryInfoExtension

src/Commands/Command.cs

@@ -62,7 +62,7 @@ public async Task<bool> ExecAsync()
                         lock (capturedLock)
                         {
                             if (captured is { Process: { HasExited: false } })
-                                captured.Process.Kill();
+                                captured.Process.Kill(true);
                         }
                     });
                 }

src/ViewModels/CommitDetail.cs

@@ -523,17 +523,22 @@ private void Refresh()
                 Task.Run(async () =>
                 {
                     var max = Preferences.Instance.MaxHistoryCommits;
-                    var cmd = new Commands.QueryCommitChildren(_repo.FullPath, _commit.SHA, max) { CancellationToken = token };
-                    var children = await cmd.GetResultAsync().ConfigureAwait(false);
+                    var children = await new Commands.QueryCommitChildren(_repo.FullPath, _commit.SHA, max)
+                        .WithCancellation(token)
+                        .GetResultAsync()
+                        .ConfigureAwait(false);
                     if (!token.IsCancellationRequested)
                         Dispatcher.UIThread.Post(() => Children = children);
                 }, token);
             }
 
             Task.Run(async () =>
             {
-                var cmd = new Commands.CompareRevisions(_repo.FullPath, _commit.FirstParentToCompare, _commit.SHA) { CancellationToken = token };
-                var changes = await cmd.ReadAsync().ConfigureAwait(false);
+                var changes = await new Commands.CompareRevisions(_repo.FullPath, _commit.FirstParentToCompare, _commit.SHA)
+                    .WithCancellation(token)
+                    .ReadAsync()
+                    .ConfigureAwait(false);
+
                 var visible = changes;
                 if (!string.IsNullOrWhiteSpace(_searchChangeFilter))
                 {