feature: show the git source revision in About dialog (#2308)

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

Author: love-linger

src/Resources/Locales/en_US.axaml

@@ -1,5 +1,6 @@
 <ResourceDictionary xmlns="https://github.com/avaloniaui" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
   <x:String x:Key="Text.About" xml:space="preserve">About</x:String>
+  <x:String x:Key="Text.About.GitSourceRevision" xml:space="preserve">Git Source Revision:</x:String>
   <x:String x:Key="Text.About.Menu" xml:space="preserve">About SourceGit</x:String>
   <x:String x:Key="Text.About.ReleaseDate" xml:space="preserve">Release Date: {0}</x:String>
   <x:String x:Key="Text.About.ReleaseNotes" xml:space="preserve">Release Notes</x:String>

src/Resources/Locales/zh_CN.axaml

@@ -4,6 +4,7 @@
   </ResourceDictionary.MergedDictionaries>
 
   <x:String x:Key="Text.About" xml:space="preserve">关于软件</x:String>
+  <x:String x:Key="Text.About.GitSourceRevision" xml:space="preserve">基于GIT代码版本: </x:String>
   <x:String x:Key="Text.About.Menu" xml:space="preserve">关于本软件</x:String>
   <x:String x:Key="Text.About.ReleaseDate" xml:space="preserve">发布日期：{0}</x:String>
   <x:String x:Key="Text.About.ReleaseNotes" xml:space="preserve">浏览版本更新说明</x:String>

src/Resources/Locales/zh_TW.axaml

@@ -4,6 +4,7 @@
   </ResourceDictionary.MergedDictionaries>
 
   <x:String x:Key="Text.About" xml:space="preserve">關於</x:String>
+  <x:String x:Key="Text.About.GitSourceRevision" xml:space="preserve">構建於 GIT 源代碼修訂版: </x:String>
   <x:String x:Key="Text.About.Menu" xml:space="preserve">關於 SourceGit</x:String>
   <x:String x:Key="Text.About.ReleaseDate" xml:space="preserve">發行日期: {0}</x:String>
   <x:String x:Key="Text.About.ReleaseNotes" xml:space="preserve">版本說明</x:String>

src/Views/About.axaml

@@ -71,6 +71,12 @@
         </StackPanel>
 
         <TextBlock x:Name="TxtReleaseDate" Margin="0,28,0,0" Foreground="{DynamicResource Brush.FG2}"/>
+        
+        <StackPanel x:Name="PnlGitSourceRevision" Orientation="Horizontal" Margin="0,2,0,0" IsVisible="False">
+          <TextBlock Foreground="{DynamicResource Brush.FG2}" Text="{DynamicResource Text.About.GitSourceRevision}"/>
+          <SelectableTextBlock x:Name="TxtGitSourceRevision" Margin="4,0,0,0" Foreground="{DynamicResource Brush.FG2}"/>
+        </StackPanel>
+
         <TextBlock x:Name="TxtCopyright" Margin="0,2,0,0" Foreground="{DynamicResource Brush.FG2}"/>
       </StackPanel>
     </StackPanel>

src/Views/About.axaml.cs

@@ -27,6 +27,18 @@ public About()
                 }
             }
 
+            var informationVersion = assembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>();
+            if (informationVersion != null)
+            {
+                var infoVer = informationVersion.InformationalVersion;
+                var idx = infoVer.IndexOf('+');
+                if (idx > 0 && infoVer.Length > idx + 11)
+                {
+                    TxtGitSourceRevision.Text = infoVer.Substring(idx + 1, 10);
+                    PnlGitSourceRevision.IsVisible = true;
+                }
+            }
+
             var copyright = assembly.GetCustomAttribute<AssemblyCopyrightAttribute>();
             if (copyright != null)
                 TxtCopyright.Text = copyright.Copyright;