separate logic into attachment summary func

src/Runner.Common/Constants.cs

@@ -9,6 +9,7 @@ namespace GitHub.Runner.Common
         Externals,
         Root,
         Actions,
+        StepSummary,
         Temp,
         Tools,
         Update,
@@ -196,6 +197,7 @@ namespace GitHub.Runner.Common
             public static readonly string DiagDirectory = "_diag";
             public static readonly string ExternalsDirectory = "externals";
             public static readonly string RunnerDiagnosticLogPrefix = "Runner_";
+            public static readonly string StepSummaryDirectory = "_step_summary";
             public static readonly string TempDirectory = "_temp";
             public static readonly string ToolDirectory = "_tool";
             public static readonly string UpdateDirectory = "_update";

src/Runner.Common/HostContext.cs

@@ -243,6 +243,12 @@ namespace GitHub.Runner.Common
                     path = new DirectoryInfo(GetDirectory(WellKnownDirectory.Bin)).Parent.FullName;
                     break;
 
+                case WellKnownDirectory.StepSummary:
+                    path = Path.Combine(
+                        GetDirectory(WellKnownDirectory.Temp),
+                        Constants.Path.StepSummaryDirectory);
+                    break;
+
                 case WellKnownDirectory.Temp:
                     path = Path.Combine(
                         GetDirectory(WellKnownDirectory.Work),

src/Runner.Worker/StepsRunner.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
@@ -103,6 +104,10 @@ namespace GitHub.Runner.Worker
                     // Set GITHUB_ACTION
                     step.ExecutionContext.SetGitHubContext("action", actionStep.Action.Name);
 
+                    var stepSummaryFilePath = CreateStepSummaryFile(step);
+                    step.ExecutionContext.SetGitHubContext("step_summary", stepSummaryFilePath);
+                    envContext["GITHUB_STEP_SUMMARY"] = new StringContextData(stepSummaryFilePath);
+
                     try
                     {
                         // Evaluate and merge step env
@@ -352,7 +357,52 @@ namespace GitHub.Runner.Worker
         {
             var executionContext = step.ExecutionContext;
 
+            CreateSummaryAttachment(step);
+
             executionContext.Complete(result, resultCode: resultCode);
         }
+
+        private string CreateStepSummaryFile(IStep step)
+        {
+            var stepSummaryDirectory = HostContext.GetDirectory(WellKnownDirectory.StepSummary);
+            if (!Directory.Exists(stepSummaryDirectory))
+            {
+              Trace.Info($"Creating step summary directory: {stepSummaryDirectory}");
+              Directory.CreateDirectory(stepSummaryDirectory);
+            }
+
+            var stepID = step.ExecutionContext.Id;
+            var stepSummaryFilePath = Path.Combine(stepSummaryDirectory, $"{stepID}.md");
+
+            Trace.Info($"Creating step summary file: {stepSummaryFilePath}");
+            File.Create(stepSummaryFilePath).Close();
+            return stepSummaryFilePath;
+        }
+
+        private void CreateSummaryAttachment(IStep step) {
+          var executionContext = step.ExecutionContext;
+          var parentContext = executionContext.Root;
+          var stepSummaryFilePath = executionContext.GetGitHubContext("step_summary");
+          var stepID = executionContext.Id;
+
+          Trace.Info($"Reading step summary data from {stepSummaryFilePath}");
+
+          var summaryExists = File.Exists(stepSummaryFilePath);
+          if (summaryExists)
+          {
+            Trace.Info($"File exists: {stepSummaryFilePath}");
+
+            var summaryFileIsEmpty = new FileInfo(stepSummaryFilePath).Length == 0;
+            if (summaryFileIsEmpty)
+            {
+              Trace.Info($"Summary file ({summaryFileIsEmpty}) is empty, skipping attachment upload");
+            }
+            else
+            {
+              Trace.Info($"Queueing file ({stepSummaryFilePath}) for attachment upload ({stepID})");
+              parentContext.QueueAttachFile(ChecksAttachmentType.StepSummary, stepID.ToString(), stepSummaryFilePath);
+            }
+          }
+        }
     }
 }

src/Sdk/DTWebApi/WebApi/TaskAttachment.cs

@@ -102,4 +102,10 @@ namespace GitHub.DistributedTask.WebApi
         public static readonly String FileAttachment = "DistributedTask.Core.FileAttachment";
         public static readonly String DiagnosticLog = "DistributedTask.Core.DiagnosticLog";
     }
+
+    [GenerateAllConstants]
+    public class ChecksAttachmentType
+    {
+        public static readonly String StepSummary = "Checks.Step.Summary";
+    }
 }

src/runnerversion

@@ -1 +1 @@
-2.286.0
+2.286.2