Create explicit logger forwarder for buildcheck

src/Build/BackEnd/BuildManager/BuildManager.cs

@@ -2989,10 +2989,22 @@ private void OnProjectStarted(object sender, ProjectStartedEventArgs e)
                     ((IBuildComponentHost)this).GetComponent(BuildComponentType.BuildCheckManagerProvider) as IBuildCheckManagerProvider;
                 buildCheckManagerProvider!.Instance.SetDataSource(BuildCheckDataSource.EventArgs);
 
-                loggers = (loggers ?? Enumerable.Empty<ILogger>()).Concat(new[]
-                {
-                    new BuildCheckConnectorLogger(new AnalyzerLoggingContextFactory(loggingService), buildCheckManagerProvider.Instance)
-                });
+                // We do want to dictate our own forwarding logger (otherwise CentralForwardingLogger with minimum transferred importance MessageImportnace.Low is used)
+                // In the future we might optimize for single, in-node build scenario - where forwarding logger is not needed (but it's just quick pass-through)
+                LoggerDescription forwardingLoggerDescription = new LoggerDescription(
+                    loggerClassName: typeof(BuildCheckForwardingLogger).FullName,
+                    loggerAssemblyName: typeof(BuildCheckForwardingLogger).GetTypeInfo().Assembly.GetName().FullName,
+                    loggerAssemblyFile: null,
+                    loggerSwitchParameters: null,
+                    verbosity: LoggerVerbosity.Quiet);
+
+                ILogger buildCheckLogger =
+                    new BuildCheckConnectorLogger(new AnalyzerLoggingContextFactory(loggingService),
+                        buildCheckManagerProvider.Instance);
+
+                ForwardingLoggerRecord[] forwardingLogger = { new ForwardingLoggerRecord(buildCheckLogger, forwardingLoggerDescription) };
+
+                forwardingLoggers = forwardingLoggers?.Concat(forwardingLogger) ?? forwardingLogger;
             }
 
             try

src/Build/BackEnd/Components/Logging/LoggingService.cs

@@ -9,6 +9,7 @@
 using System.Reflection;
 using System.Threading;
 using Microsoft.Build.BackEnd.Components.RequestBuilder;
+using Microsoft.Build.BuildCheck.Infrastructure;
 using Microsoft.Build.Evaluation;
 using Microsoft.Build.Framework;
 using Microsoft.Build.Shared;
@@ -1758,6 +1759,10 @@ private void UpdateMinimumMessageImportance(ILogger logger)
                 Build.Logging.ConsoleLogger consoleLogger => consoleLogger.GetMinimumMessageImportance(),
                 Build.Logging.ConfigurableForwardingLogger forwardingLogger => forwardingLogger.GetMinimumMessageImportance(),
 
+                // The BuildCheck connector logger consumes only high priority messages.
+                BuildCheckForwardingLogger => MessageImportance.High,
+                BuildCheck.Infrastructure.BuildCheckConnectorLogger => MessageImportance.High,
+
                 // Central forwarding loggers are used in worker nodes if logging verbosity could not be optimized, i.e. in cases
                 // where we must log everything. They can be ignored in inproc nodes.
                 CentralForwardingLogger => (_nodeId > 1 ? MessageImportance.Low : null),

src/Build/BuildCheck/Infrastructure/BuildCheckForwardingLogger.cs

@@ -0,0 +1,19 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Microsoft.Build.BackEnd.Logging;
+
+namespace Microsoft.Build.BuildCheck.Infrastructure;
+
+/// <summary>
+/// Forwarding logger for the build check infrastructure.
+/// For now we jus want to forward all events, while disable verbose logging of tasks.
+/// In the future we may need more specific behavior.
+/// </summary>
+internal class BuildCheckForwardingLogger : CentralForwardingLogger
+{ }

src/Build/Microsoft.Build.csproj

@@ -161,6 +161,7 @@
     <Compile Include="BuildCheck\Acquisition\IBuildCheckAcquisitionModule.cs" />
     <Compile Include="BuildCheck\Analyzers\SharedOutputPathAnalyzer.cs" />
     <Compile Include="BuildCheck\Infrastructure\BuildCheckConfigurationException.cs" />
+    <Compile Include="BuildCheck\Infrastructure\BuildCheckForwardingLogger.cs" />
     <Compile Include="BuildCheck\Infrastructure\BuildEventsProcessor.cs" />
     <Compile Include="BuildCheck\Infrastructure\IBuildCheckManagerProvider.cs" />
     <Compile Include="BuildCheck\Infrastructure\NullBuildCheckManager.cs" />

src/MSBuild.UnitTests/XMake_Tests.cs

@@ -2626,16 +2626,24 @@ public void EndToEndVersionMessage(string arguments, bool shouldContainVersionMe
         [InlineData("/v:normal", MessageImportance.Normal)]
         [InlineData("/v:minimal", MessageImportance.High)]
         [InlineData("/v:quiet", MessageImportance.High - 1)]
+
         [InlineData("/v:diagnostic /bl", MessageImportance.Low)]
         [InlineData("/v:detailed /bl", MessageImportance.Low)]
         [InlineData("/v:normal /bl", MessageImportance.Low)] // v:normal but with binary logger so everything must be logged
         [InlineData("/v:minimal /bl", MessageImportance.Low)] // v:minimal but with binary logger so everything must be logged
         [InlineData("/v:quiet /bl", MessageImportance.Low)] // v:quiet but with binary logger so everything must be logged
+
         [InlineData("/v:diagnostic /analyze", MessageImportance.Low)]
         [InlineData("/v:detailed /analyze", MessageImportance.Low)]
-        [InlineData("/v:normal /analyze", MessageImportance.Low)] // v:normal but with analyzers so everything must be logged
-        [InlineData("/v:minimal /analyze", MessageImportance.Low)] // v:minimal but with analyzers so everything must be logged
-        [InlineData("/v:quiet /analyze", MessageImportance.Low)] // v:quiet but with analyzers so everything must be logged
+        [InlineData("/v:normal /analyze", MessageImportance.Normal)]
+        [InlineData("/v:minimal /analyze", MessageImportance.High)]
+        [InlineData("/v:quiet /analyze", MessageImportance.High)]
+
+        [InlineData("/v:diagnostic /tl", MessageImportance.Low)]
+        [InlineData("/v:detailed /tl", MessageImportance.Low)]
+        [InlineData("/v:normal /tl", MessageImportance.Normal)]
+        [InlineData("/v:minimal /tl", MessageImportance.High)]
+        [InlineData("/v:quiet /tl", MessageImportance.High - 1)]
         public void EndToEndMinimumMessageImportance(string arguments, MessageImportance expectedMinimumMessageImportance)
         {
             using TestEnvironment testEnvironment = UnitTests.TestEnvironment.Create();