Unity - Log Assembly Compilation times

AssemblyCompilationReporter.cs

namespace Editor {
  public class AssemblyCompilationReporter {
    
    [InitializeOnLoadMethod]
    private static void Init() {
      CompilationPipeline.assemblyCompilationStarted += CompilationPipelineOnAssemblyCompilationStarted;
      CompilationPipeline.assemblyCompilationFinished += CompilationPipelineOnAssemblyCompilationFinished;
    }

    private static void CompilationPipelineOnAssemblyCompilationFinished(string s, CompilerMessage[] compilerMessages) {
      var startTimeInTicks = PlayerPrefs.GetString($"CompileStartTime{s}");
      var startTime = new DateTime(Convert.ToInt64(startTimeInTicks));

      var compileTime = DateTime.Now - startTime;
      
      Debug.Log($"=== CompilationPipeline Assembly Finished {s} ({compileTime.ToString("s\\.fff")}s)");

      foreach (var compilerMessage in compilerMessages) {
        switch (compilerMessage.type) {
          case CompilerMessageType.Error:
            Debug.LogError($"==== {compilerMessage.file}[{compilerMessage.line}:{compilerMessage.column}] {compilerMessage.message}");
            break;
          case CompilerMessageType.Warning:
            Debug.LogWarning($"==== {compilerMessage.file}[{compilerMessage.line}:{compilerMessage.column}] {compilerMessage.message}");
            break;
          default:
            throw new ArgumentOutOfRangeException();
        }
      }
    }

    private static void CompilationPipelineOnAssemblyCompilationStarted(string s) {      
      PlayerPrefs.SetString($"CompileStartTime{s}", Convert.ToString(DateTime.Now.Ticks));
    }
  }
}