Add System.Diagnostics.Activities for early data collection

- Added System.Diagnostics.DiagnosticSource package reference
- Created ActivitySource for Microsoft.Dotnet.Installer library
- Added Activity for DotnetInstaller.Install with tags for install root, arch, component, and version
- Added sub-activities for Prepare and Commit stages in ArchiveDotnetExtractor

Co-authored-by: baronfel <[email protected]>

Author: Copilot

src/Installer/Microsoft.Dotnet.Installation/DotnetInstallRoot.cs

@@ -6,6 +6,7 @@
 using System.Text;
 
 namespace Microsoft.Dotnet.Installation;
+
 public record DotnetInstallRoot(
     string Path,
     InstallArchitecture Architecture);

src/Installer/Microsoft.Dotnet.Installation/Internal/ArchiveDotnetExtractor.cs

@@ -3,6 +3,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Formats.Tar;
 using System.IO;
 using System.IO.Compression;
@@ -30,6 +31,8 @@ public ArchiveDotnetExtractor(DotnetInstallRequest request, ReleaseVersion resol
 
     public void Prepare()
     {
+        using var activity = InstallationActivitySource.ActivitySource.StartActivity("DotnetInstaller.Prepare");
+
         using var releaseManifest = new ReleaseManifest();
         var archiveName = $"dotnet-{Guid.NewGuid()}";
         _archivePath = Path.Combine(scratchDownloadDirectory, archiveName + DnupUtilities.GetArchiveFileExtensionForPlatform());
@@ -90,6 +93,8 @@ public void Commit()
 
     public void Commit(IEnumerable<ReleaseVersion> existingSdkVersions)
     {
+        using var activity = InstallationActivitySource.ActivitySource.StartActivity("DotnetInstaller.Commit");
+
         if (_archivePath == null || !File.Exists(_archivePath))
         {
             throw new InvalidOperationException("Archive not found. Make sure Prepare() was called successfully.");

src/Installer/Microsoft.Dotnet.Installation/Internal/DotnetInstaller.cs

@@ -3,6 +3,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Text;
 using Microsoft.Deployment.DotNet.Releases;
 
@@ -19,6 +20,12 @@ public DotnetInstaller(IProgressTarget progressTarget)
 
         public void Install(DotnetInstallRoot dotnetRoot, InstallComponent component, ReleaseVersion version)
         {
+            using var activity = InstallationActivitySource.ActivitySource.StartActivity("DotnetInstaller.Install");
+            activity?.SetTag("install.root", dotnetRoot.Path);
+            activity?.SetTag("install.arch", dotnetRoot.Architecture.ToString());
+            activity?.SetTag("install.component", component.ToString());
+            activity?.SetTag("install.version", version.ToString());
+
             var installRequest = new DotnetInstallRequest(dotnetRoot, new UpdateChannel(version.ToString()), component, new InstallRequestOptions());
 
             using ArchiveDotnetExtractor installer = new(installRequest, version, _progressTarget);

src/Installer/Microsoft.Dotnet.Installation/Internal/InstallationActivitySource.cs

@@ -0,0 +1,13 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System.Diagnostics;
+
+namespace Microsoft.Dotnet.Installation.Internal;
+
+internal static class InstallationActivitySource
+{
+    private static readonly ActivitySource s_activitySource = new("Microsoft.Dotnet.Installer", "1.0.0");
+
+    public static ActivitySource ActivitySource => s_activitySource;
+}

src/Installer/Microsoft.Dotnet.Installation/Internal/ReleaseManifest.cs

@@ -74,7 +74,7 @@ static IEnumerable<string> GetChannelsForProduct(Product product)
                     .Select(v => $"{v.Major}.{v.Minor}.{(v.Patch / 100)}xx")
                     .Distinct()
                     .ToList()
-                ];                
+                ];
         }
 
     }

src/Installer/Microsoft.Dotnet.Installation/Microsoft.Dotnet.Installation.csproj

@@ -19,6 +19,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Deployment.DotNet.Releases" />
+    <PackageReference Include="System.Diagnostics.DiagnosticSource" />
   </ItemGroup>
 
 </Project>