generate build timestamp at compile time for about box (#75)

ACEmulator · Sep 3, 2023 · 37031dd · 37031dd
1 parent 3fcb327
commit 37031dd
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Showing 3 changed files with 34 additions and 2 deletions.
diff --git a/ACViewer/ACViewer.csproj b/ACViewer/ACViewer.csproj
@@ -117,4 +117,8 @@
 			exit 0
 		</PostBuildEvent>
 	</PropertyGroup>
+
+	<PropertyGroup>
+		<SourceRevisionId>build$([System.DateTime]::UtcNow.ToString("yyyyMMddHHmmss"))</SourceRevisionId>
+	</PropertyGroup>	
 </Project>
diff --git a/ACViewer/View/About.xaml b/ACViewer/View/About.xaml
@@ -8,7 +8,7 @@
         Title="About" Height="170" Width="280" ResizeMode="NoResize" Icon="../Icons/Question_16x.png">
     <Grid>
         <TextBlock HorizontalAlignment="Left" Margin="7.5,10,0,0" TextWrapping="Wrap" VerticalAlignment="Top">
-            <Run FontWeight="Bold">ACViewer - build 2022.02.18</Run><LineBreak /><LineBreak />
+            <Run FontWeight="Bold" Text="{Binding RunText, Mode=OneWay}"></Run><LineBreak /><LineBreak />
             Much thanks: the emulator teams, Pea, parad0x, OptimShi, and the AC community!<LineBreak />
         </TextBlock>
         <Button Content="OK" HorizontalAlignment="Center" Margin="0,100,0,0" VerticalAlignment="Top" Width="75" Click="OK_Click" IsCancel="true"/>

diff --git a/ACViewer/View/About.xaml.cs b/ACViewer/View/About.xaml.cs
@@ -1,4 +1,7 @@
-using System.Windows;
+using System;
+using System.Globalization;
+using System.Reflection;
+using System.Windows;
 
 namespace ACViewer.View
 {
@@ -7,14 +10,39 @@ namespace ACViewer.View
     /// </summary>
     public partial class About : Window
     {
+        public string RunText => "ACViewer - build " + GetBuildDate(Assembly.GetExecutingAssembly()).ToString("yyyy.MM.dd");
+
         public About()
         {
             InitializeComponent();
+            DataContext = this;
         }
 
         private void OK_Click(object sender, RoutedEventArgs e)
         {
             Close();   
         }
+
+        // https://www.meziantou.net/getting-the-date-of-build-of-a-dotnet-assembly-at-runtime.htm
+        private static DateTime GetBuildDate(Assembly assembly)
+        {
+            const string BuildVersionMetadataPrefix = "+build";
+
+            var attribute = assembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>();
+            if (attribute?.InformationalVersion != null)
+            {
+                var value = attribute.InformationalVersion;
+                var index = value.IndexOf(BuildVersionMetadataPrefix);
+                if (index > 0)
+                {
+                    value = value.Substring(index + BuildVersionMetadataPrefix.Length);
+                    if (DateTime.TryParseExact(value, "yyyyMMddHHmmss", CultureInfo.InvariantCulture, DateTimeStyles.AssumeUniversal, out var result))
+                    {
+                        return result;
+                    }
+                }
+            }
+            return default;
+        }
     }
 }