optimize<*>: remove deprecated apis (older than .NET 6)

src/Commands/Command.cs

@@ -85,11 +85,7 @@ namespace SourceGit.Commands {
                     isCancelled = true;
                     proc.CancelErrorRead();
                     proc.CancelOutputRead();
-#if NET48
-                    if (!proc.HasExited) proc.Kill();
-#else
                     if (!proc.HasExited) proc.Kill(true);
-#endif
                     return;
                 }
 
@@ -101,11 +97,7 @@ namespace SourceGit.Commands {
                     isCancelled = true;
                     proc.CancelErrorRead();
                     proc.CancelOutputRead();
-#if NET48
-                    if (!proc.HasExited) proc.Kill();
-#else
                     if (!proc.HasExited) proc.Kill(true);
-#endif
                     return;
                 }
 

src/Models/Version.cs

@@ -4,13 +4,7 @@ using System.Text.Json;
 using System.Text.Json.Serialization;
 using System.Text.RegularExpressions;
 using System.Threading.Tasks;
-
-#if NET6_0
 using System.Net.Http;
-#else
-using System.Net;
-using System.Text;
-#endif
 
 namespace SourceGit.Models {
 
@@ -50,16 +44,11 @@ namespace SourceGit.Models {
                 Preference.Instance.General.LastCheckDay = curDayOfYear;
                 Task.Run(async () => {
                     try {
-#if NET6_0
                         var req = new HttpClient();
                         var rsp = await req.GetAsync("https://api.github.com/repos/sourcegit-scm/sourcegit/releases/latest");
                         rsp.EnsureSuccessStatusCode();
 
                         var raw = await rsp.Content.ReadAsStringAsync();
-#else
-                        var web = new WebClient() { Encoding = Encoding.UTF8 };
-                        var raw = await web.DownloadStringTaskAsync("https://api.github.com/repos/sourcegit-scm/sourcegit/releases/latest");
-#endif
                         var ver = JsonSerializer.Deserialize<Version>(raw);
                         var cur = Assembly.GetExecutingAssembly().GetName().Version;
 

src/Views/About.xaml

@@ -72,7 +72,7 @@
                 Margin="0,0,0,8"
                 HorizontalAlignment="Center"
                 FontSize="11"
-                Text="VERSION: v1.0    .NET: v5.0"/>
+                Text="VERSION: v1.0"/>
 
             <DataGrid
                 x:Name="hotkeys"

src/Views/About.xaml.cs

@@ -21,10 +21,7 @@ namespace SourceGit.Views {
             InitializeComponent();
 
             var asm = Assembly.GetExecutingAssembly().GetName();
-            var framework = AppDomain.CurrentDomain.SetupInformation.TargetFrameworkName;
+            version.Text = $"VERSION : v{asm.Version.Major}.{asm.Version.Minor}";
-            var dotnetVer = framework.Substring(framework.IndexOf("=") + 1);
-
-            version.Text = $"VERSION : v{asm.Version.Major}.{asm.Version.Minor}   .NET : {dotnetVer}";
 
             hotkeys.ItemsSource = new List<Keymap>() {
                 new Keymap("CTRL + T", "NewTab"),
@@ -39,13 +36,9 @@ namespace SourceGit.Views {
         }
 
         private void OnRequestNavigate(object sender, System.Windows.Navigation.RequestNavigateEventArgs e) {
-#if NET48
-            Process.Start(e.Uri.AbsoluteUri);
-#else
             var info = new ProcessStartInfo("cmd", $"/c start {e.Uri.AbsoluteUri}");
             info.CreateNoWindow = true;
             Process.Start(info);
-#endif
         }
 
         private void Quit(object sender, RoutedEventArgs e) {

src/Views/Controls/Avatar.cs

@@ -10,10 +10,7 @@ using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Media;
 using System.Windows.Media.Imaging;
-
-#if NET6_0
 using System.Net.Http;
-#endif
 
 namespace SourceGit.Views.Controls {
 
@@ -196,7 +193,6 @@ namespace SourceGit.Views.Controls {
                 if (!requesting.ContainsKey(email)) return;
 
                 try {
-#if NET6_0
                     var req = new HttpClient().GetAsync(Models.Preference.Instance.General.AvatarServer + md5 + "?d=404");
                     req.Wait();
 
@@ -217,30 +213,6 @@ namespace SourceGit.Views.Controls {
                     } else {
                         if (!loaded.ContainsKey(email)) loaded.Add(email, null);
                     }
-#else
-                    HttpWebRequest req = WebRequest.CreateHttp(Models.Preference.Instance.General.AvatarServer + md5 + "?d=404");
-                    req.Timeout = 2000;
-                    req.Method = "GET";
-
-                    HttpWebResponse rsp = req.GetResponse() as HttpWebResponse;
-                    if (rsp.StatusCode == HttpStatusCode.OK) {
-                        using (Stream reader = rsp.GetResponseStream())
-                        using (FileStream writer = File.OpenWrite(filePath)) {
-                            reader.CopyTo(writer);
-                        }
-
-                        a.Dispatcher.Invoke(() => {
-                            var img = new BitmapImage(new Uri(filePath));
-                            loaded.Add(email, img);
-
-                            if (requesting.ContainsKey(email)) {
-                                foreach (var one in requesting[email]) one.Source = img;
-                            }
-                        });
-                    } else {
-                        if (!loaded.ContainsKey(email)) loaded.Add(email, null);
-                    }
-#endif
                 } catch {
                     if (!loaded.ContainsKey(email)) loaded.Add(email, null);
                 }

src/Views/Upgrade.xaml.cs

@@ -16,13 +16,9 @@ namespace SourceGit.Views {
 
         private void Download(object sender, RoutedEventArgs e) {
             var url = $"https://github.com/sourcegit-scm/sourcegit/releases/{Version.TagName}";
-#if NET48
-            Process.Start(url);
-#else
             var info = new ProcessStartInfo("cmd", $"/c start {url}");
             info.CreateNoWindow = true;
             Process.Start(info);
-#endif
         }
 
         private void Quit(object sender, RoutedEventArgs e) {

src/Views/Widgets/Histories.xaml.cs

@@ -72,15 +72,6 @@ namespace SourceGit.Views.Widgets {
             } else {
                 searching = true;
                 foreach (var c in cachedCommits) {
-#if NET48
-                    if (c.SHA.Contains(filter)
-                        || c.Subject.Contains(filter)
-                        || c.Message.Contains(filter)
-                        || c.Author.Name.Contains(filter)
-                        || c.Committer.Name.Contains(filter)) {
-                        visible.Add(c);
-                    }
-#else
                     if (c.SHA.Contains(filter, StringComparison.Ordinal)
                         || c.Subject.Contains(filter, StringComparison.Ordinal)
                         || c.Message.Contains(filter, StringComparison.Ordinal)
@@ -88,7 +79,6 @@ namespace SourceGit.Views.Widgets {
                         || c.Committer.Name.Contains(filter, StringComparison.Ordinal)) {
                         visible.Add(c);
                     }
-#endif
                 }
             }
 

src/Views/Widgets/WorkingCopyChanges.xaml.cs

@@ -215,11 +215,7 @@ namespace SourceGit.Views.Widgets {
 
                 if (!added) Changes.Add(c);
 
-#if NET48
-                int sepIdx = c.Path.IndexOf("/", StringComparison.Ordinal);
-#else
                 int sepIdx = c.Path.IndexOf('/', StringComparison.Ordinal);
-#endif
                 if (sepIdx < 0) {
                     GetOrAddTreeNode(Nodes, c.Path, c, false);
                 } else {