Revert "Improve debugging experience: add global switch MSBuildDebugE…

…ngine; Inject binary logger from BuildManager; print static graph as .dot file (dotnet#6639)"

This reverts commit cdb5077.

Conflicts:
	documentation/wiki/ChangeWaves.md
	src/Build/BackEnd/Components/Scheduler/Scheduler.cs
	src/Shared/Traits.cs

documentation/wiki/ChangeWaves.md

@@ -31,7 +31,7 @@ A wave of features is set to "rotate out" (i.e. become standard functionality) t
 - [Scheduler should honor BuildParameters.DisableInprocNode](https://github.com/dotnet/msbuild/pull/6400)
 - [Don't compile globbing regexes on .NET Framework](https://github.com/dotnet/msbuild/pull/6632)
 - [Default to transitively copying content items](https://github.com/dotnet/msbuild/pull/6622)
-- [Improve debugging experience: add global switch MSBuildDebugEngine; Inject binary logger from BuildManager; print static graph as .dot file](https://github.com/dotnet/msbuild/pull/6639)
+- [Reference assemblies are now no longer placed in the `bin` directory by default](https://github.com/dotnet/msbuild/pull/6560)
 
 ## Change Waves No Longer In Rotation
 ### 16.8

src/Build.UnitTests/Graph/ProjectGraph_Tests.cs

@@ -1476,34 +1476,22 @@ public void DotNotationShouldRepresentGraph(Dictionary<int, int[]> edges)
             var graph = Helpers.CreateProjectGraph(
                 _env,
                 edges,
-                globalProperties: new Dictionary<string, string> {{"a", "b"}},
-                createProjectFile: (env, projectId, references, _, _, _) => Helpers.CreateProjectFile(
-                    env,
-                    projectId,
-                    references,
-                    projectReferenceTargets: new Dictionary<string, string[]>
-                    {
-                        {"Build", new[] {$"TargetFrom{projectId}", "Build"}}
-                    }));
+                new Dictionary<string, string> {{"a", "b"}});
 
-            var targetsPerNode = graph.GetTargetLists(new []{ "Build" });
 
             Func<ProjectGraphNode, string> nodeIdProvider = GetProjectFileName;
 
-            var dot = graph.ToDot(nodeIdProvider, targetsPerNode);
+            var dot = graph.ToDot(nodeIdProvider);
 
             var edgeCount = 0;
 
             foreach (var node in graph.ProjectNodes)
             {
                 var nodeId = nodeIdProvider(node);
 
-                var targets = string.Join(".*", targetsPerNode[node]);
-                targets.ShouldNotBeNullOrEmpty();
-
                 foreach (var globalProperty in node.ProjectInstance.GlobalProperties)
                 {
-                    dot.ShouldMatch($@"{nodeId}\s*\[.*{targets}.*{globalProperty.Key}.*{globalProperty.Value}.*\]");
+                    dot.ShouldMatch($@"{nodeId}\s*\[.*{globalProperty.Key}.*{globalProperty.Value}.*\]");
                 }
 
                 foreach (var reference in node.ProjectReferences)

src/Build/BackEnd/BuildManager/BuildManager.cs

@@ -30,9 +30,7 @@
 using Microsoft.Build.Internal;
 using Microsoft.Build.Logging;
 using Microsoft.Build.Shared;
-using Microsoft.Build.Shared.Debugging;
 using Microsoft.Build.Shared.FileSystem;
-using Microsoft.Build.Utilities;
 using ForwardingLoggerRecord = Microsoft.Build.Logging.ForwardingLoggerRecord;
 using LoggerDescription = Microsoft.Build.Logging.LoggerDescription;
 
@@ -488,7 +486,7 @@ public void BeginBuild(BuildParameters parameters)
             ILoggingService InitializeLoggingService()
             {
                 ILoggingService loggingService = CreateLoggingService(
-                    AppendDebuggingLoggers(_buildParameters.Loggers),
+                    _buildParameters.Loggers,
                     _buildParameters.ForwardingLoggers,
                     _buildParameters.WarningsAsErrors,
                     _buildParameters.WarningsAsMessages);
@@ -520,22 +518,6 @@ ILoggingService InitializeLoggingService()
                 return loggingService;
             }
 
-            // VS builds discard many msbuild events so attach a binlogger to capture them all.
-            IEnumerable<ILogger> AppendDebuggingLoggers(IEnumerable<ILogger> loggers)
-            {
-                if (DebugUtils.ShouldDebugCurrentProcess is false ||
-                    Traits.Instance.DebugEngine is false)
-                {
-                    return loggers;
-                }
-
-                var binlogPath = DebugUtils.FindNextAvailableDebugFilePath($"{DebugUtils.ProcessInfoString}_BuildManager_{_hostName}.binlog");
-
-                var logger = new BinaryLogger { Parameters = binlogPath };
-
-                return (loggers ?? Enumerable.Empty<ILogger>()).Concat(new[] { logger });
-            }
-
             void InitializeCaches()
             {
                 Debug.Assert(Monitor.IsEntered(_syncLock));
@@ -579,14 +561,17 @@ void InitializeCaches()
             }
         }
 
-        private static void AttachDebugger()
+        private void AttachDebugger()
         {
             if (Debugger.IsAttached)
             {
                 return;
             }
 
-            if (!DebugUtils.ShouldDebugCurrentProcess)
+            var processNameToBreakInto = Environment.GetEnvironmentVariable("MSBuildDebugBuildManagerOnStartProcessName");
+            var thisProcessMatchesName = string.IsNullOrWhiteSpace(processNameToBreakInto) || Process.GetCurrentProcess().ProcessName.Contains(processNameToBreakInto);
+
+            if (!thisProcessMatchesName)
             {
                 return;
             }
@@ -1818,17 +1803,11 @@ private void ExecuteGraphBuildScheduler(GraphBuildSubmission submission)
                 if (submission.BuildRequestData.GraphBuildOptions.Build)
                 {
                     var cacheServiceTask = Task.Run(() => SearchAndInitializeProjectCachePluginFromGraph(projectGraph));
-                    var targetListTask = projectGraph.GetTargetLists(submission.BuildRequestData.TargetNames);
-
-                    DumpGraph(projectGraph, targetListTask);
+                    var targetListTask = Task.Run(() => projectGraph.GetTargetLists(submission.BuildRequestData.TargetNames));
 
                     using DisposablePluginService cacheService = cacheServiceTask.Result;
 
-                    resultsPerNode = BuildGraph(projectGraph, targetListTask, submission.BuildRequestData);
-                }
-                else
-                {
-                    DumpGraph(projectGraph);
+                    resultsPerNode = BuildGraph(projectGraph, targetListTask.Result, submission.BuildRequestData);
                 }
 
                 ErrorUtilities.VerifyThrow(
@@ -1892,18 +1871,6 @@ private void ExecuteGraphBuildScheduler(GraphBuildSubmission submission)
                     _overallBuildSuccess = false;
                 }
             }
-
-            static void DumpGraph(ProjectGraph graph, IReadOnlyDictionary<ProjectGraphNode, ImmutableList<string>> targetList = null)
-            {
-                if (Traits.Instance.DebugEngine is false)
-                {
-                    return;
-                }
-
-                var logPath = DebugUtils.FindNextAvailableDebugFilePath($"{DebugUtils.ProcessInfoString}_ProjectGraph.dot");
-
-                File.WriteAllText(logPath, graph.ToDot(targetList));
-            }
         }
 
         private Dictionary<ProjectGraphNode, BuildResult> BuildGraph(

src/Build/BackEnd/Components/BuildRequestEngine/BuildRequestEngine.cs

@@ -12,8 +12,6 @@
 using Microsoft.Build.BackEnd.Logging;
 using Microsoft.Build.Execution;
 using Microsoft.Build.Shared;
-using Microsoft.Build.Shared.Debugging;
-using Microsoft.Build.Utilities;
 using BuildAbortedException = Microsoft.Build.Exceptions.BuildAbortedException;
 
 namespace Microsoft.Build.BackEnd
@@ -117,10 +115,8 @@ internal class BuildRequestEngine : IBuildRequestEngine, IBuildComponent
         /// </summary>
         internal BuildRequestEngine()
         {
-            _debugDumpState = Traits.Instance.DebugScheduler;
-            _debugDumpPath = ChangeWaves.AreFeaturesEnabled(ChangeWaves.Wave17_0)
-                ? DebugUtils.DebugPath
-                : Environment.GetEnvironmentVariable("MSBUILDDEBUGPATH");
+            _debugDumpState = Environment.GetEnvironmentVariable("MSBUILDDEBUGSCHEDULER") == "1";
+            _debugDumpPath = Environment.GetEnvironmentVariable("MSBUILDDEBUGPATH");
             _debugForceCaching = Environment.GetEnvironmentVariable("MSBUILDDEBUGFORCECACHING") == "1";
 
             if (String.IsNullOrEmpty(_debugDumpPath))