private static string? DiscoverServiceVersion()

in src/Elastic.CommonSchema/EcsDocument.DefaultService.cs [65:89]

• 21 lines of code
• 7 McCabe index (conditional complexity)

	private static string? DiscoverServiceVersion(Assembly? entryAssembly) =>
		entryAssembly is not null && !IsMsOrElastic(entryAssembly.GetName().GetPublicKeyToken())
			? entryAssembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>()?.InformationalVersion
			: null;

	private static Assembly? GetEntryAssembly()
	{
		var entryAssembly = Assembly.GetEntryAssembly();
		var entryAssemblyName = entryAssembly?.GetName();
		if (entryAssemblyName != null && !IsMsOrElastic(entryAssemblyName.GetPublicKeyToken()))
			return entryAssembly;

		var stackFrames = new StackTrace().GetFrames();
		if (stackFrames == null) return null;

		var assemblies =
			from frame in stackFrames
			let assembly = frame?.GetMethod()?.DeclaringType?.Assembly
			where assembly != null
			let bytes = assembly.GetName()?.GetPublicKeyToken()
			where bytes != null && !IsMsOrElastic(bytes)
			select assembly;

		return assemblies.FirstOrDefault();
	}