public void Attach()
{
try
{
_projectsLookup.Clear();
const BindingFlags InterfacePropertyFlags = BindingFlags.GetProperty
| BindingFlags.Public
| BindingFlags.Instance;
var buildManager = Microsoft.Build.Execution.BuildManager.DefaultBuildManager;
var buildHostType = buildManager.GetType().Assembly.GetType("Microsoft.Build.BackEnd.IBuildComponentHost");
var loggingSeviceProperty = buildHostType.GetProperty("LoggingService", InterfacePropertyFlags);
object loggingServiceObj;
try
{
// Microsoft.Build.BackEnd.ILoggingService
loggingServiceObj = loggingSeviceProperty.GetValue(buildManager, null);
}
catch (TargetInvocationException ex)
{
_logger.Error(ex, "Microsoft.Build.BackEnd.ILoggingService is not available.");
LoggerState = RegisterLoggerResult.FatalError;
return;
}
var loggersProperty = loggingServiceObj.GetType().GetProperty("Loggers", InterfacePropertyFlags);
var loggers = (ICollection <ILogger>)loggersProperty.GetValue(loggingServiceObj, null);
var logger = loggers.FirstOrDefault(x => x is BuildOutputLogger && ((BuildOutputLogger)x)._loggerId.Equals(_loggerId));
if (logger != null)
{
LoggerState = RegisterLoggerResult.AlreadyExists;
return;
}
var registerLoggerMethod = loggingServiceObj.GetType().GetMethod("RegisterLogger");
var registerResult = (bool)registerLoggerMethod.Invoke(loggingServiceObj, new object[] { this });
LoggerState = registerResult ? RegisterLoggerResult.RegisterSuccess : RegisterLoggerResult.RegisterFailed;
}
catch (Exception ex)
{
_logger.Error(ex, "Error registering MSBuild Logger");
LoggerState = RegisterLoggerResult.FatalError;
}
}
private void RegisterLogger()
{
_buildLogger = null;
// Same Verbosity as in the Error List.
const LoggerVerbosity LoggerVerbosity = LoggerVerbosity.Quiet;
RegisterLoggerResult result = BuildOutputLogger.Register(_parsingErrorsLoggerId, LoggerVerbosity, out _buildLogger);
if (result == RegisterLoggerResult.RegisterSuccess)
{
var eventSource = _buildLogger.EventSource;
eventSource.MessageRaised += (s, e) => EventSource_ErrorRaised(_buildLogger, e, ErrorLevel.Message);
eventSource.WarningRaised += (s, e) => EventSource_ErrorRaised(_buildLogger, e, ErrorLevel.Warning);
eventSource.ErrorRaised += (s, e) => EventSource_ErrorRaised(_buildLogger, e, ErrorLevel.Error);
}
else if (result == RegisterLoggerResult.AlreadyExists)
{
_buildLogger.Projects?.Clear();
}
}
