Read FileVersion from assembly metadata.

This works even when the assembly was not loaded directly from a file.
open-telemetry · Mar 23, 2021 · ce13790 · ce13790
1 parent 72da117
commit ce13790
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/OpenTelemetry/Resources/ResourceBuilderExtensions.cs b/src/OpenTelemetry/Resources/ResourceBuilderExtensions.cs
@@ -17,6 +17,7 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
+using System.Reflection;
 
 namespace OpenTelemetry.Resources
 {
@@ -126,7 +127,7 @@ private static string GetFileVersion()
         {
             try
             {
-                return FileVersionInfo.GetVersionInfo(typeof(Resource).Assembly.Location).FileVersion;
+                return typeof(Resource).Assembly.GetCustomAttribute<AssemblyFileVersionAttribute>()?.Version ?? string.Empty;
             }
             catch (Exception)
             {