diff --git a/eng/pipelines/templates/jobs/vmr-build.yml b/eng/pipelines/templates/jobs/vmr-build.yml
index 16d676186c87..b0dfd4a05a04 100644
--- a/eng/pipelines/templates/jobs/vmr-build.yml
+++ b/eng/pipelines/templates/jobs/vmr-build.yml
@@ -208,7 +208,7 @@ jobs:
exit 1
fi
displayName: Setup Previously Source-Built SDK
-
+
- ${{ if eq(parameters.targetOS, 'windows') }}:
- script: |
call $(sourcesPath)\build.cmd -ci -cleanWhileBuilding -prepareMachine ${{ parameters.extraProperties }}
@@ -305,7 +305,7 @@ jobs:
for envVar in $customEnvVars; do
customDockerRunArgs="$customDockerRunArgs -e $envVar"
done
-
+
if [[ '${{ parameters.runOnline }}' == 'False' ]]; then
customDockerRunArgs="$customDockerRunArgs --network none"
fi
@@ -342,10 +342,10 @@ jobs:
# Don't use CopyFiles@2 as it encounters permissions issues because it indexes all files in the source directory graph.
- powershell: |
function CopyWithRelativeFolders($sourcePath, $targetFolder, $filter) {
- Get-ChildItem -Path $sourcePath -Filter $filter -Recurse | ForEach-Object {
+ Get-ChildItem -Path $sourcePath -Filter $filter -Recurse | ForEach-Object {
$targetPath = Join-Path $targetFolder (Resolve-Path -Relative $_.FullName)
New-Item -ItemType Directory -Path (Split-Path -Parent $targetPath) -Force | Out-Null
- Copy-Item $_.FullName -Destination $targetPath -Force
+ Copy-Item $_.FullName -Destination $targetPath -Force
}
}
@@ -356,6 +356,7 @@ jobs:
CopyWithRelativeFolders "artifacts/" $targetFolder "*.binlog"
CopyWithRelativeFolders "artifacts/" $targetFolder "*.log"
+ CopyWithRelativeFolders "artifacts/" $targetFolder "*.diff"
CopyWithRelativeFolders "src/" $targetFolder "*.binlog"
CopyWithRelativeFolders "src/" $targetFolder "*.log"
CopyWithRelativeFolders "test/" $targetFolder "*.binlog"
@@ -382,6 +383,7 @@ jobs:
cd "$(sourcesPath)"
find artifacts/ -type f -name "*.binlog" -exec rsync -R {} -t ${targetFolder} \;
find artifacts/ -type f -name "*.log" -exec rsync -R {} -t ${targetFolder} \;
+ find artifacts/ -type f -name "*.diff" -exec rsync -R {} -t ${targetFolder} \;
if [[ "${{ parameters.buildSourceOnly }}" == "True" ]]; then
find artifacts/prebuilt-report/ -exec rsync -R {} -t ${targetFolder} \;
fi
diff --git a/src/SourceBuild/content/Directory.Build.props b/src/SourceBuild/content/Directory.Build.props
index 52bed083548c..216830039f4e 100644
--- a/src/SourceBuild/content/Directory.Build.props
+++ b/src/SourceBuild/content/Directory.Build.props
@@ -203,6 +203,7 @@
$([MSBuild]::NormalizePath('$(ArtifactsBinDir)', 'Microsoft.DotNet.SourceBuild.Tasks.XPlat', '$(Configuration)', 'Microsoft.DotNet.SourceBuild.Tasks.XPlat.dll'))
$([MSBuild]::NormalizePath('$(ArtifactsBinDir)', 'Microsoft.DotNet.SourceBuild.Tasks.LeakDetection', '$(Configuration)', 'Microsoft.DotNet.SourceBuild.Tasks.LeakDetection.dll'))
+ $([MSBuild]::NormalizePath('$(ArtifactsBinDir)', 'Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff', '$(Configuration)', 'Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff.dll'))
diff --git a/src/SourceBuild/content/build.proj b/src/SourceBuild/content/build.proj
index 04f6a25b6f6f..d18fb9a508a7 100644
--- a/src/SourceBuild/content/build.proj
+++ b/src/SourceBuild/content/build.proj
@@ -20,5 +20,7 @@
+
+
diff --git a/src/SourceBuild/content/eng/build.sourcebuild.targets b/src/SourceBuild/content/eng/build.sourcebuild.targets
index 00b1439ef7d6..a05905856cf0 100644
--- a/src/SourceBuild/content/eng/build.sourcebuild.targets
+++ b/src/SourceBuild/content/eng/build.sourcebuild.targets
@@ -35,10 +35,6 @@
-
-
-
-
$(ArtifactsAssetsDir)dotnet-symbols-sdk-$(SourceBuiltSdkVersion)-$(TargetRid)$(ArchiveExtension)
diff --git a/src/SourceBuild/content/eng/sdkArchiveDiff.targets b/src/SourceBuild/content/eng/sdkArchiveDiff.targets
new file mode 100644
index 000000000000..c3bc8078763a
--- /dev/null
+++ b/src/SourceBuild/content/eng/sdkArchiveDiff.targets
@@ -0,0 +1,64 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ <_changedFiles Include="@(_ContentDifferences)" Condition="'%(_contentDifferences.Kind)' != 'Unchanged'" />
+ <_sdkFilesDiff Include="@(_ContentDifferences)" Condition="'%(_contentDifferences.Kind)' == 'Added'" >
+ +
+
+ <_sdkFilesDiff Include="@(_ContentDifferences)" Condition="'%(_contentDifferences.Kind)' == 'Removed'" >
+ -
+
+ <_sdkFilesDiff Include="@(_ContentDifferences)" Condition="'%(_contentDifferences.Kind)' == 'Unchanged'" >
+
+
+
+
+
+ $(ArtifactsLogDir)SdkArchiveContent.diff
+
+
+
+
+
+
+
+
+
+
+
diff --git a/src/SourceBuild/content/eng/tools/init-build.proj b/src/SourceBuild/content/eng/tools/init-build.proj
index 4d6b4d316651..a196b48cf9a8 100644
--- a/src/SourceBuild/content/eng/tools/init-build.proj
+++ b/src/SourceBuild/content/eng/tools/init-build.proj
@@ -15,6 +15,7 @@
UnpackTarballs;
BuildXPlatTasks;
BuildMSBuildSdkResolver;
+ BuildSdkArchiveDiff;
BuildLeakDetection;
ExtractToolPackage;
GenerateRootFs;
@@ -116,6 +117,15 @@
+
+
+
+
+
diff --git a/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/Archive.cs b/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/Archive.cs
new file mode 100644
index 000000000000..1417c88cad2c
--- /dev/null
+++ b/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/Archive.cs
@@ -0,0 +1,136 @@
+// 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.Formats.Tar;
+using System.IO;
+using System.IO.Compression;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+
+public abstract class Archive : IDisposable
+{
+ public static async Task Create(string path, CancellationToken cancellationToken = default)
+ {
+ if (path.EndsWith(".tar.gz"))
+ return await TarArchive.Create(path, cancellationToken);
+ else if (path.EndsWith(".zip"))
+ return ZipFileArchive.Create(path);
+ else
+ throw new NotSupportedException("Unsupported archive type");
+ }
+
+ public abstract string[] GetFileNames();
+
+ public abstract bool Contains(string relativePath);
+
+ public abstract void Dispose();
+
+ public class TarArchive : Archive
+ {
+ private string _extractedFolder;
+
+ private TarArchive(string extractedFolder)
+ {
+ _extractedFolder = extractedFolder;
+ }
+
+ public static new async Task Create(string path, CancellationToken cancellationToken = default)
+ {
+ var tmpFolder = Directory.CreateTempSubdirectory(nameof(FindArchiveDiffs));
+ using (var gzStream = File.OpenRead(path))
+ using (var gzipStream = new GZipStream(gzStream, CompressionMode.Decompress))
+ {
+ await TarFile.ExtractToDirectoryAsync(gzipStream, tmpFolder.FullName, true, cancellationToken);
+ }
+ return new TarArchive(tmpFolder.FullName);
+ }
+
+ public override bool Contains(string relativePath)
+ {
+ return File.Exists(Path.Combine(_extractedFolder, relativePath));
+ }
+
+ public override string[] GetFileNames()
+ {
+ return Directory.GetFiles(_extractedFolder, "*", SearchOption.AllDirectories).Select(f => f.Substring(_extractedFolder.Length + 1)).ToArray();
+ }
+
+ public override void Dispose()
+ {
+ if (Directory.Exists(_extractedFolder))
+ Directory.Delete(_extractedFolder, true);
+ }
+ }
+
+ public class ZipFileArchive : Archive
+ {
+ private ZipArchive _archive;
+
+ private ZipFileArchive(ZipArchive archive)
+ {
+ _archive = archive;
+ }
+
+ public static ZipFileArchive Create(string path)
+ {
+ return new ZipFileArchive(new ZipArchive(File.OpenRead(path)));
+ }
+
+ public override bool Contains(string relativePath)
+ {
+ return _archive.GetEntry(relativePath) != null;
+ }
+
+ public override string[] GetFileNames()
+ {
+ return _archive.Entries.Select(e => e.FullName).ToArray();
+ }
+
+ public override void Dispose()
+ {
+ _archive.Dispose();
+ }
+ }
+
+ private static string GetArchiveExtension(string path)
+ {
+ if (path.EndsWith(".tar.gz"))
+ {
+ return ".tar.gz";
+ }
+ else if (path.EndsWith(".zip"))
+ {
+ return ".zip";
+ }
+ else
+ {
+ throw new ArgumentException($"Invalid archive extension '{path}': must end with .tar.gz or .zip");
+ }
+ }
+
+ public static (string Version, string Rid, string extension) GetInfoFromFileName(string filename, string packageName)
+ {
+ var extension = GetArchiveExtension(filename);
+ var Version = VersionIdentifier.GetVersion(filename);
+ if (Version is null)
+ throw new ArgumentException("Invalid archive file name '{filename}': No valid version found in file name.");
+ // Once we've removed the version, package name, and extension, we should be left with the RID
+ var Rid = filename
+ .Replace(extension, "")
+ .Replace(Version, "")
+ .Replace(packageName, "")
+ .Trim('-', '.', '_');
+
+ // A RID with '.' must have a version number after the first '.' in each part of the RID. For example, alpine.3.10-arm64.
+ // Otherwise, it's likely an archive of another type of file that we don't handle here, for example, .msi.wixpack.zip.
+ var ridParts = Rid.Split('-');
+ foreach(var item in ridParts.SelectMany(p => p.Split('.').Skip(1)))
+ {
+ if (!int.TryParse(item, out _))
+ throw new ArgumentException($"Invalid Rid '{Rid}' in archive file name '{filename}'. Expected RID with '.' to be part of a version. This likely means the file is an archive of a different file type.");
+ }
+ return (Version, Rid, extension);
+ }
+}
diff --git a/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/Diff.cs b/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/Diff.cs
new file mode 100644
index 000000000000..008fe67f0e16
--- /dev/null
+++ b/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/Diff.cs
@@ -0,0 +1,126 @@
+// 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.Diagnostics;
+using System.Threading;
+using Microsoft.Build.Framework;
+using Microsoft.Build.Utilities;
+
+static class Diff
+{
+ public static ITaskItem TaskItemFromDiff((string, DifferenceKind) diff)
+ {
+ var item = new TaskItem(diff.Item1);
+ item.SetMetadata("Kind", Enum.GetName(diff.Item2));
+ return item;
+ }
+
+ public enum DifferenceKind
+ {
+ ///
+ /// Present in the test but not in the baseline
+ ///
+ Added,
+
+ ///
+ /// Present in the baseline but not in the test
+ ///
+ Removed,
+
+ ///
+ /// Present in both the baseline and test
+ ///
+ Unchanged
+ }
+
+ ///
+ /// Uses the Longest Common Subsequence algorithm (as used in 'git diff') to find the differences between two lists of strings.
+ /// Returns a list of the joined lists with the differences marked as either added or removed.
+ ///
+ public static List<(string, DifferenceKind DifferenceKind)> GetDiffs(
+ Span baselineSequence,
+ Span testSequence,
+ Func equalityComparer,
+ Func? formatter = null,
+ CancellationToken cancellationToken = default)
+ {
+ // Edit distance algorithm: https://en.wikipedia.org/wiki/Longest_common_subsequence
+ // cancellationToken.ThrowIfCancellationRequested();
+ formatter ??= static s => s;
+
+ // Optimization: remove common prefix
+ int i = 0;
+ List<(string, DifferenceKind)> prefix = [];
+ while (i < baselineSequence.Length && i < testSequence.Length && equalityComparer(baselineSequence[i], testSequence[i]))
+ {
+ prefix.Add((formatter(baselineSequence[i]), DifferenceKind.Unchanged));
+ i++;
+ }
+
+ baselineSequence = baselineSequence[i..];
+ testSequence = testSequence[i..];
+
+ // Initialize first row and column
+ int[,] m = new int[baselineSequence.Length + 1, testSequence.Length + 1];
+ for (i = 0; i <= baselineSequence.Length; i++)
+ {
+ m[i, 0] = i;
+ }
+ for (i = 0; i <= testSequence.Length; i++)
+ {
+ m[0, i] = i;
+ }
+
+ // Compute edit distance
+ for (i = 1; i <= baselineSequence.Length; i++)
+ {
+ cancellationToken.ThrowIfCancellationRequested();
+ for (int j = 1; j <= testSequence.Length; j++)
+ {
+ if (equalityComparer(baselineSequence[i - 1], testSequence[j - 1]))
+ {
+ m[i, j] = m[i - 1, j - 1];
+ }
+ else
+ {
+ m[i, j] = 1 + Math.Min(m[i - 1, j], m[i, j - 1]);
+ }
+ }
+ }
+
+ // Trace back the edits
+ int row = baselineSequence.Length;
+ int col = testSequence.Length;
+ List<(string, DifferenceKind)> diff = [];
+ while (row > 0 || col > 0)
+ {
+ cancellationToken.ThrowIfCancellationRequested();
+ if (row > 0 && col > 0 && equalityComparer(baselineSequence[row - 1], testSequence[col - 1]))
+ {
+ diff.Add((formatter(baselineSequence[row - 1]), DifferenceKind.Unchanged));
+ row--;
+ col--;
+ }
+ else if (col > 0 && (row == 0 || m[row, col - 1] <= m[row - 1, col]))
+ {
+ diff.Add((formatter(testSequence[col - 1]), DifferenceKind.Added));
+ col--;
+ }
+ else if (row > 0 && (col == 0 || m[row, col - 1] > m[row - 1, col]))
+ {
+ diff.Add((formatter(baselineSequence[row - 1]), DifferenceKind.Removed));
+ row--;
+ }
+ else
+ {
+ throw new UnreachableException();
+ }
+ }
+ diff.Reverse();
+ prefix.AddRange(diff);
+ return prefix;
+ }
+
+}
diff --git a/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/FindArchiveDiffs.cs b/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/FindArchiveDiffs.cs
new file mode 100644
index 000000000000..9fc19a7385c0
--- /dev/null
+++ b/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/FindArchiveDiffs.cs
@@ -0,0 +1,49 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.Build.Framework;
+using Task = System.Threading.Tasks.Task;
+
+public class FindArchiveDiffs : Microsoft.Build.Utilities.Task, ICancelableTask
+{
+ [Required]
+ public required ITaskItem BaselineArchive { get; init; }
+
+ [Required]
+ public required ITaskItem TestArchive { get; init; }
+
+ [Output]
+ public ITaskItem[] ContentDifferences { get; set; } = [];
+
+ private CancellationTokenSource _cancellationTokenSource = new();
+ private CancellationToken cancellationToken => _cancellationTokenSource.Token;
+
+ public override bool Execute()
+ {
+ return Task.Run(ExecuteAsync).Result;
+ }
+
+ public async Task ExecuteAsync()
+ {
+ var baselineTask = Archive.Create(BaselineArchive.ItemSpec);
+ var testTask = Archive.Create(TestArchive.ItemSpec);
+ Task.WaitAll([baselineTask, testTask], cancellationToken);
+ using var baseline = await baselineTask;
+ using var test = await testTask;
+ var baselineFiles = baseline.GetFileNames();
+ var testFiles = test.GetFileNames();
+ ContentDifferences =
+ Diff.GetDiffs(baselineFiles, testFiles, VersionIdentifier.AreVersionlessEqual, static p => VersionIdentifier.RemoveVersions(p, "{VERSION}"), cancellationToken)
+ .Select(Diff.TaskItemFromDiff)
+ .ToArray();
+ return true;
+ }
+
+ public void Cancel()
+ {
+ _cancellationTokenSource.Cancel();
+ }
+}
diff --git a/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/GetClosestArchive.cs b/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/GetClosestArchive.cs
new file mode 100644
index 000000000000..85592191d0b4
--- /dev/null
+++ b/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/GetClosestArchive.cs
@@ -0,0 +1,94 @@
+// 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.IO;
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.Build.Framework;
+
+public abstract class GetClosestArchive : Microsoft.Build.Utilities.Task, ICancelableTask
+{
+ [Required]
+ public required string BuiltArchivePath { get; init; }
+
+ [Output]
+ public string ClosestOfficialArchivePath { get; set; } = "";
+
+ private string? _builtVersion;
+ protected string BuiltVersion
+ {
+ get => _builtVersion ?? throw new InvalidOperationException();
+ private set => _builtVersion = value;
+ }
+
+ private string? _builtRid;
+ protected string BuiltRid
+ {
+ get => _builtRid ?? throw new InvalidOperationException();
+ private set => _builtRid = value;
+ }
+
+ private string? _archiveExtension;
+ protected string ArchiveExtension
+ {
+ get => _archiveExtension ?? throw new InvalidOperationException();
+ private set => _archiveExtension = value;
+ }
+
+ ///
+ /// The name of the package to find the closest official archive for. For example, "dotnet-sdk" or "aspnetcore-runtime".
+ ///
+ protected abstract string ArchiveName { get; }
+
+ private CancellationTokenSource _cancellationTokenSource = new();
+ protected CancellationToken CancellationToken => _cancellationTokenSource.Token;
+ public void Cancel()
+ {
+ _cancellationTokenSource.Cancel();
+ }
+
+ ///
+ /// Get the URL of the latest official archive for the given version string and RID.
+ ///
+ public abstract Task GetClosestOfficialArchiveUrl();
+
+ public abstract Task GetClosestOfficialArchiveVersion();
+
+ public override bool Execute()
+ {
+ return Task.Run(ExecuteAsync).Result;
+ }
+
+ public async Task ExecuteAsync()
+ {
+ CancellationToken.ThrowIfCancellationRequested();
+ var filename = Path.GetFileName(BuiltArchivePath);
+ (BuiltVersion, BuiltRid, ArchiveExtension) = Archive.GetInfoFromFileName(filename, ArchiveName);
+ Log.LogMessage($"Finding closest official archive for '{ArchiveName}' version '{BuiltVersion}' RID '{BuiltRid}'");
+
+ string? downloadUrl = await GetClosestOfficialArchiveUrl();
+ if (downloadUrl == null)
+ {
+ Log.LogError($"Failed to find a download URL for '{ArchiveName}' version '{BuiltVersion}' RID '{BuiltRid}'");
+ return false;
+ }
+
+ HttpClient client = new HttpClient();
+
+ Log.LogMessage(MessageImportance.High, $"Downloading {downloadUrl}");
+ HttpResponseMessage packageResponse = await client.GetAsync(downloadUrl, CancellationToken);
+
+ var packageUriPath = packageResponse.RequestMessage!.RequestUri!.LocalPath;
+
+ ClosestOfficialArchivePath = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName() + "." + Path.GetFileName(packageUriPath));
+ Log.LogMessage($"Copying {packageUriPath} to {ClosestOfficialArchivePath}");
+ using (var file = File.Create(ClosestOfficialArchivePath))
+ {
+ await packageResponse.Content.CopyToAsync(file, CancellationToken);
+ }
+
+ return true;
+ }
+}
diff --git a/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/GetClosestOfficialSdk.cs b/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/GetClosestOfficialSdk.cs
new file mode 100644
index 000000000000..bb038516c434
--- /dev/null
+++ b/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/GetClosestOfficialSdk.cs
@@ -0,0 +1,44 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System.Net;
+using System.Net.Http;
+using System.Threading.Tasks;
+using Microsoft.Build.Framework;
+
+public class GetClosestOfficialSdk : GetClosestArchive
+{
+ protected override string ArchiveName => "dotnet-sdk";
+
+ HttpClient client = new HttpClient(new HttpClientHandler() { AllowAutoRedirect = false });
+
+ private string? closestVersion;
+ private string? closestUrl;
+
+ public override async Task GetClosestOfficialArchiveUrl()
+ {
+ // Channel in the form of 9.0.1xx
+ var channel = BuiltVersion[..5] + "xx";
+ var akaMsUrl = $"https://aka.ms/dotnet/{channel}/daily/{ArchiveName}-{BuiltRid}{ArchiveExtension}";
+ var redirectResponse = await client.GetAsync(akaMsUrl, CancellationToken);
+ // aka.ms returns a 301 for valid redirects and a 302 to Bing for invalid URLs
+ if (redirectResponse.StatusCode != HttpStatusCode.Moved)
+ {
+ Log.LogMessage(MessageImportance.High, $"Failed to find package at '{akaMsUrl}': invalid aka.ms URL");
+ return null;
+ }
+ closestUrl = redirectResponse.Headers.Location!.ToString();
+ closestVersion = VersionIdentifier.GetVersion(closestUrl);
+ return closestUrl;
+ }
+
+ public override async Task GetClosestOfficialArchiveVersion()
+ {
+ if (closestUrl is not null)
+ {
+ return closestVersion;
+ }
+ _ = await GetClosestOfficialArchiveUrl();
+ return closestVersion;
+ }
+}
diff --git a/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/GetValidArchiveItems.cs b/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/GetValidArchiveItems.cs
new file mode 100644
index 000000000000..bd27213b80b3
--- /dev/null
+++ b/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/GetValidArchiveItems.cs
@@ -0,0 +1,57 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using Microsoft.Build.Framework;
+
+public class GetValidArchiveItems : Microsoft.Build.Utilities.Task
+{
+ [Required]
+ public required ITaskItem[] ArchiveItems { get; init; }
+
+ [Required]
+ public required string ArchiveName { get; init; }
+
+ [Output]
+ public ITaskItem[] ValidArchiveItems { get; set; } = [];
+
+ public override bool Execute()
+ {
+ List archiveItems = new();
+ foreach (var item in ArchiveItems)
+ {
+ var filename = Path.GetFileName(item.ItemSpec);
+ try
+ {
+ // Ensure the version and RID info can be parsed from the item
+ _ = Archive.GetInfoFromFileName(filename, ArchiveName);
+ archiveItems.Add(item);
+ }
+ catch (ArgumentException e)
+ {
+ Log.LogMessage($"'{item.ItemSpec}' is not a valid archive name: '{e.Message}'");
+ continue;
+ }
+ }
+ switch (archiveItems.Count)
+ {
+ case 0:
+ Log.LogMessage(MessageImportance.High, "No valid archive items found");
+ ValidArchiveItems = [];
+ return false;
+ case 1:
+ Log.LogMessage(MessageImportance.High, $"{archiveItems[0]} is the only valid archive item found");
+ ValidArchiveItems = archiveItems.ToArray();
+ break;
+ default:
+ archiveItems.Sort((a, b) => a.ItemSpec.Length - b.ItemSpec.Length);
+ Log.LogMessage(MessageImportance.High, $"Multiple valid archive items found: '{string.Join("', '", archiveItems)}'");
+ ValidArchiveItems = archiveItems.ToArray();
+ break;
+ }
+ return true;
+ }
+
+}
diff --git a/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff.csproj b/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff.csproj
new file mode 100644
index 000000000000..ff3bf2402a01
--- /dev/null
+++ b/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff.csproj
@@ -0,0 +1,12 @@
+
+
+
+ $(NetCurrent)
+ enable
+
+
+
+
+
+
+
diff --git a/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/VersionIdentifier.cs b/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/VersionIdentifier.cs
new file mode 100644
index 000000000000..2150a721197f
--- /dev/null
+++ b/src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.SdkArchiveDiff/VersionIdentifier.cs
@@ -0,0 +1,257 @@
+// 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;
+
+// Copied from https://github.com/dotnet/arcade/blob/db45698020f58f88eef75b23b2598a59872918f6/src/Microsoft.DotNet.VersionTools/lib/src/BuildManifest/VersionIdentifier.cs
+// Conflicting MSBuild versions and some customizations make it difficult to use the Arcade assembly.
+public static class VersionIdentifier
+{
+ private static readonly HashSet _knownTags = new HashSet
+ {
+ "alpha",
+ "beta",
+ "preview",
+ "prerelease",
+ "servicing",
+ "rtm",
+ "rc"
+ };
+
+ private static readonly SortedDictionary _sequencesToReplace =
+ new SortedDictionary
+ {
+ { "-.", "." },
+ { "..", "." },
+ { "--", "-" },
+ { "//", "/" },
+ { "_.", "." }
+ };
+
+ private const string _finalSuffix = "final";
+
+ private static readonly char[] _delimiters = new char[] { '.', '-', '_' };
+
+ ///
+ /// Identify the version of an asset.
+ ///
+ /// Asset names can come in two forms:
+ /// - Blobs that include the full path
+ /// - Packages that do not include any path elements.
+ ///
+ /// There may be multiple different version numbers in a blob path.
+ /// This method starts at the last segment of the path and works backward to find a version number.
+ ///
+ /// Asset name
+ /// Version, or null if none is found.
+ public static string? GetVersion(string assetName)
+ {
+ string[] pathSegments = assetName.Split(new char[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
+ string? potentialVersion = null;
+ for (int i = pathSegments.Length - 1; i >= 0; i--)
+ {
+ potentialVersion = GetVersionForSingleSegment(pathSegments[i]);
+ if (potentialVersion != null)
+ {
+ return potentialVersion;
+ }
+ }
+
+ return potentialVersion;
+ }
+
+ ///
+ /// Identify the version number of an asset segment.
+ ///
+ /// Asset segment
+ /// Version number, or null if none was found
+ ///
+ /// Identifying versions is not particularly easy. To constrain the problem,
+ /// we apply the following assumptions which are generally valid for .NET Core.
+ /// - We always have major.minor.patch, and it always begins the version string.
+ /// - The only pre-release or build metadata labels we use begin with the _knownTags shown above.
+ /// - We use additional numbers in our version numbers after the initial
+ /// major.minor.patch-prereleaselabel.prereleaseiteration segment,
+ /// but any non-numeric element will end the version string.
+ /// - The we use in versions and file names are ., -, and _.
+ ///
+ private static string? GetVersionForSingleSegment(string assetPathSegment)
+ {
+
+ // Find the start of the version number by finding the major.minor.patch.
+ // Scan the string forward looking for a digit preceded by one of the delimiters,
+ // then look for a minor.patch, completing the major.minor.patch. Continue to do so until we get
+ // to something that is NOT major.minor.patch (this is necessary because we sometimes see things like:
+ // VS.Redist.Common.NetCore.Templates.x86.2.2.3.0.101-servicing-014320.nupkg
+ // Continue iterating until we find ALL potential versions. Return the one that is the latest in the segment
+ // This is to deal with files with multiple major.minor.patchs in the file name, for example:
+ // Microsoft.NET.Workload.Mono.ToolChain.Manifest-6.0.100.Msi.x64.6.0.0-rc.1.21380.2.symbols.nupkg
+
+ int currentIndex = 0;
+ // Stack of major.minor.patch.
+ Stack<(int versionNumber, int index)> majorMinorPatchStack = new Stack<(int, int)>(3);
+ string? majorMinorPatch = null;
+ int majorMinorPatchIndex = 0;
+ StringBuilder versionSuffix = new StringBuilder();
+ char prevDelimiterCharacter = char.MinValue;
+ char nextDelimiterCharacter = char.MinValue;
+ Dictionary majorMinorPatchDictionary = new Dictionary();
+ while (true)
+ {
+ string nextSegment;
+ prevDelimiterCharacter = nextDelimiterCharacter;
+ int nextDelimiterIndex = assetPathSegment.IndexOfAny(_delimiters, currentIndex);
+ if (nextDelimiterIndex != -1)
+ {
+ nextDelimiterCharacter = assetPathSegment[nextDelimiterIndex];
+ nextSegment = assetPathSegment.Substring(currentIndex, nextDelimiterIndex - currentIndex);
+ }
+ else
+ {
+ nextSegment = assetPathSegment.Substring(currentIndex);
+ }
+
+ // If we have not yet found the major/minor/patch, then there are four cases:
+ // - There have been no potential major/minor/patch numbers found and the current segment is a number. Push onto the majorMinorPatch stack
+ // and continue.
+ // - There has been at least one number found, but less than 3, and the current segment not a number or not preceded by '.'. In this case,
+ // we should clear out the stack and continue the search.
+ // - There have been at least 2 numbers found and the current segment is a number and preceded by '.'. Push onto the majorMinorPatch stack and continue
+ // - There have been at least 3 numbers found and the current segment is not a number or not preceded by '-'. In this case, we can call this the major minor
+ // patch number and no longer need to continue searching
+ if (majorMinorPatch == null)
+ {
+ bool isNumber = int.TryParse(nextSegment, out int potentialVersionSegment);
+ if ((majorMinorPatchStack.Count == 0 && isNumber) ||
+ (majorMinorPatchStack.Count > 0 && prevDelimiterCharacter == '.' && isNumber))
+ {
+ majorMinorPatchStack.Push((potentialVersionSegment, currentIndex));
+ }
+ // Check for partial major.minor.patch cases, like: 2.2.bar or 2.2-100.bleh
+ else if (majorMinorPatchStack.Count > 0 && majorMinorPatchStack.Count < 3 &&
+ (prevDelimiterCharacter != '.' || !isNumber))
+ {
+ majorMinorPatchStack.Clear();
+ }
+
+ // Determine whether we are done with major.minor.patch after this update.
+ if (majorMinorPatchStack.Count >= 3 && (prevDelimiterCharacter != '.' || !isNumber || nextDelimiterIndex == -1))
+ {
+ // Done with major.minor.patch, found. Pop the top 3 elements off the stack.
+ (int patch, int patchIndex) = majorMinorPatchStack.Pop();
+ (int minor, int minorIndex) = majorMinorPatchStack.Pop();
+ (int major, int majorIndex) = majorMinorPatchStack.Pop();
+ majorMinorPatch = $"{major}.{minor}.{patch}";
+ majorMinorPatchIndex = majorIndex;
+ }
+ }
+
+ // Don't use else, so that we don't miss segments
+ // in case we are just deciding that we've finished major minor patch.
+ if (majorMinorPatch != null)
+ {
+ // Now look at the next segment. If it looks like it could be part of a version, append to what we have
+ // and continue. If it can't, then we're done.
+ //
+ // Cases where we should break out and be done:
+ // - We have an empty pre-release label and the delimiter is not '-'.
+ // - We have an empty pre-release label and the next segment does not start with a known tag.
+ // - We have a non-empty pre-release label and the current segment is not a number and also not 'final'
+ // A corner case of versioning uses .final to represent a non-date suffixed final pre-release version:
+ // 3.1.0-preview.10.final
+ if (versionSuffix.Length == 0 &&
+ (prevDelimiterCharacter != '-' || !_knownTags.Any(tag => nextSegment.StartsWith(tag, StringComparison.OrdinalIgnoreCase))))
+ {
+ majorMinorPatchDictionary.Add(majorMinorPatchIndex, majorMinorPatch);
+ majorMinorPatch = null;
+ versionSuffix = new StringBuilder();
+ }
+ else if (versionSuffix.Length != 0 && !int.TryParse(nextSegment, out int potentialVersionSegment) && nextSegment != _finalSuffix)
+ {
+ majorMinorPatchDictionary.Add(majorMinorPatchIndex, $"{majorMinorPatch}{versionSuffix.ToString()}");
+ majorMinorPatch = null;
+ versionSuffix = new StringBuilder();
+ }
+ else
+ {
+ // Append the delimiter character and then the current segment
+ versionSuffix.Append(prevDelimiterCharacter);
+ versionSuffix.Append(nextSegment);
+ }
+ }
+
+ if (nextDelimiterIndex != -1)
+ {
+ currentIndex = nextDelimiterIndex + 1;
+ }
+ else
+ {
+ break;
+ }
+ }
+
+ if (majorMinorPatch != null)
+ {
+ majorMinorPatchDictionary.Add(majorMinorPatchIndex, $"{majorMinorPatch}{versionSuffix.ToString()}");
+ }
+
+ if (!majorMinorPatchDictionary.Any())
+ {
+ return null;
+ }
+
+ int maxKey = majorMinorPatchDictionary.Keys.Max();
+ return majorMinorPatchDictionary[maxKey];
+ }
+
+ ///
+ /// Given an asset name, remove all .NET Core version numbers (as defined by GetVersionForSingleSegment)
+ /// from the string
+ ///
+ /// Asset
+ /// Asset name without versions
+ public static string RemoveVersions(string assetName, string replacement = "")
+ {
+ string[] pathSegments = assetName.Split('/');
+
+ // Remove the version number from each segment, then join back together and
+ // remove any useless character sequences.
+
+ for (int i = 0; i < pathSegments.Length; i++)
+ {
+ if (!string.IsNullOrEmpty(pathSegments[i]))
+ {
+ string? versionForSegment = GetVersionForSingleSegment(pathSegments[i]);
+ if (versionForSegment != null)
+ {
+ pathSegments[i] = pathSegments[i].Replace(versionForSegment, replacement);
+ }
+ }
+ }
+
+ // Continue replacing things until there is nothing left to replace.
+ string assetWithoutVersions = string.Join("/", pathSegments);
+ bool anyReplacements = true;
+ while (anyReplacements)
+ {
+ string replacementIterationResult = assetWithoutVersions;
+ foreach (var sequence in _sequencesToReplace)
+ {
+ replacementIterationResult = replacementIterationResult.Replace(sequence.Key, sequence.Value);
+ }
+ anyReplacements = replacementIterationResult != assetWithoutVersions;
+ assetWithoutVersions = replacementIterationResult;
+ }
+
+ return assetWithoutVersions;
+ }
+
+
+ public static bool AreVersionlessEqual(string assetName1, string assetName2)
+ {
+ return RemoveVersions(assetName1) == RemoveVersions(assetName2);
+ }
+}