Merge pull request #27 from Kielek/activity-source-version

Set ActivitySource.Version to NuGet package version

src/MongoDB.Driver.Core.Extensions.DiagnosticSources/DiagnosticsActivityEventSubscriber.cs

@@ -12,8 +12,7 @@ public class DiagnosticsActivityEventSubscriber : IEventSubscriber
         private readonly InstrumentationOptions _options;
         internal static readonly AssemblyName AssemblyName = typeof(DiagnosticsActivityEventSubscriber).Assembly.GetName();
         internal static readonly string ActivitySourceName = AssemblyName.Name;
-        internal static readonly Version Version = AssemblyName.Version;
-        internal static readonly ActivitySource ActivitySource = new(ActivitySourceName, Version.ToString());
+        internal static readonly ActivitySource ActivitySource = new(ActivitySourceName, SignalVersionHelper.GetVersion<DiagnosticsActivityEventSubscriber>());
 
         public const string ActivityName = "MongoDB.Driver.Core.Events.Command";
 

src/MongoDB.Driver.Core.Extensions.DiagnosticSources/SignalVersionHelper.cs

@@ -0,0 +1,11 @@
+using System.Reflection;
+
+namespace MongoDB.Driver.Core.Extensions.DiagnosticSources;
+
+internal static class SignalVersionHelper
+{
+    public static string GetVersion<T>()
+    {
+        return typeof(T).Assembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>()!.InformationalVersion.Split('+')[0];
+    }
+}