Add alpine source build CI leg

Author: MichaelSimons

eng/pipelines/templates/stages/vmr-build.yml

@@ -13,6 +13,7 @@ parameters:
 
   # The following parameters aren't expected to be passed in rather they are used for encapsulation
   # -----------------------------------------------------------------------------------------------
+  alpine317Container: mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.17
   centOSStream8Container: mcr.microsoft.com/dotnet-buildtools/prereqs:centos-stream8
   centOSStream9Container: mcr.microsoft.com/dotnet-buildtools/prereqs:centos-stream9
   debian11Arm64Container: mcr.microsoft.com/dotnet-buildtools/prereqs:debian-11-arm64v8
@@ -82,6 +83,24 @@ stages:
       runOnline: true                    # ✅
       withPreviousSDK: false             # 🚫
 
+  # TODO:  Move within ne(variables['Build.Reason'], 'PullRequest') block after tested in PR validation
+  - template: ../jobs/vmr-build.yml
+    parameters:
+      buildName: Alpine317-Offline_MsftSdk
+      isBuiltFromVmr: ${{ parameters.isBuiltFromVmr }}
+      vmrBranch: ${{ variables.VmrBranch }}
+      architecture: x64
+      pool:
+        name: ${{ variables.defaultPoolName }}
+        demands: ${{ variables.defaultPoolDemands }}
+      container: ${{ parameters.alpine317Container }}
+      buildFromArchive: true             # ✅
+      enablePoison: false                # 🚫
+      excludeOmniSharpTests: true        # ✅
+      overrideDistroDisablingSha1: false # 🚫
+      runOnline: false                   # 🚫
+      withPreviousSDK: false             # 🚫
+
   - ${{ if ne(variables['Build.Reason'], 'PullRequest') }}:
     - template: ../jobs/vmr-build.yml
       parameters:

src/SourceBuild/content/eng/bootstrap/buildBootstrapPreviouslySB.csproj

@@ -15,9 +15,13 @@
   <ItemGroup>
     <!-- These packages will be replaced with ms-built packages downloaded from official package feeds-->
     <PackageDownload Include="Microsoft.Aspnetcore.App.Runtime.linux-x64" Version="[$(MicrosoftAspNetCoreAppRuntimeVersion)]" />
+    <PackageDownload Include="Microsoft.AspNetCore.App.Runtime.linux-musl-x64" Version="[$(MicrosoftAspNetCoreAppRuntimeVersion)]" />
     <PackageDownload Include="Microsoft.NETCore.App.Crossgen2.linux-x64" Version="[$(MicrosoftNETCoreAppCrossgen2Version)]" />
+    <PackageDownload Include="Microsoft.NETCore.App.Crossgen2.linux-musl-x64" Version="[$(MicrosoftNETCoreAppCrossgen2Version)]" />
     <PackageDownload Include="Microsoft.NETCore.App.Host.linux-x64" Version="[$(MicrosoftNETCoreAppHostPackageVersion)]" />
+    <PackageDownload Include="Microsoft.NETCore.App.Host.linux-musl-x64" Version="[$(MicrosoftNETCoreAppHostPackageVersion)]" />
     <PackageDownload Include="Microsoft.NETCore.App.Runtime.linux-x64" Version="[$(MicrosoftNETCoreAppRuntimeVersion)]" />
+    <PackageDownload Include="Microsoft.NETCore.App.Runtime.linux-musl-x64" Version="[$(MicrosoftNETCoreAppRuntimeVersion)]" />
     <PackageDownload Include="Microsoft.NET.HostModel" Version="[$(MicrosoftNETHostModelVersion)]" />
     <PackageDownload Include="Microsoft.NET.Sdk.IL" Version="[$(MicrosoftNETSdkILVersion)]" />
     <PackageDownload Include="Microsoft.NETCore.ILAsm" Version="[$(MicrosoftNETCoreILAsmVersion)]" />

src/SourceBuild/content/test/Microsoft.DotNet.SourceBuild.SmokeTests/Microsoft.DotNet.SourceBuild.SmokeTests.csproj

@@ -9,6 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.FileSystemGlobbing" Version="7.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">

src/SourceBuild/content/test/Microsoft.DotNet.SourceBuild.SmokeTests/SourceBuiltArtifactsTests.cs

@@ -1,4 +1,8 @@
-using System;
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
@@ -21,7 +25,7 @@ public void VerifyVersionFile()
         try
         {
             // Extract the .version file
-            ExtractFileFromTarball(Config.SourceBuiltArtifactsPath, ".version", outputDir);
+            Utilities.ExtractFileFromTarball(Config.SourceBuiltArtifactsPath, ".version", outputDir);
 
             string[] versionLines = File.ReadAllLines(Path.Combine(outputDir, ".version"));
             Assert.Equal(2, versionLines.Length);
@@ -47,7 +51,7 @@ public void VerifyVersionFile()
             string sdkVersion = versionLines[1];
 
             // Find the expected SDK version by getting it from the SDK tarball
-            ExtractFileFromTarball(Config.SdkTarballPath, "./sdk/*/.version", outputDir);
+            Utilities.ExtractFileFromTarball(Config.SdkTarballPath, "./sdk/*/.version", outputDir);
             DirectoryInfo sdkDir = new DirectoryInfo(Path.Combine(outputDir, "sdk"));
             string sdkVersionPath = sdkDir.GetFiles(".version", SearchOption.AllDirectories).Single().FullName;
             string[] sdkVersionLines = File.ReadAllLines(Path.Combine(outputDir, sdkVersionPath));
@@ -60,9 +64,4 @@ public void VerifyVersionFile()
             Directory.Delete(outputDir, recursive: true);
         }
     }
-
-    private void ExtractFileFromTarball(string tarballPath, string filePath, string outputDir)
-    {
-        ExecuteHelper.ExecuteProcessValidateExitCode("tar", $"--wildcards -xzf {tarballPath} -C {outputDir} {filePath}", OutputHelper);
-    }
 }

src/SourceBuild/content/test/Microsoft.DotNet.SourceBuild.SmokeTests/Utilities.cs

@@ -2,7 +2,11 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+using Microsoft.Extensions.FileSystemGlobbing;
 using System;
+using System.Formats.Tar;
+using System.IO;
+using System.IO.Compression;
 using System.Threading;
 using System.Threading.Tasks;
 using Xunit.Abstractions;
@@ -11,6 +15,30 @@ namespace Microsoft.DotNet.SourceBuild.SmokeTests;
 
 public static class Utilities
 {
+    public static void ExtractFileFromTarball(string tarballPath, string filePath, string outputDir)
+    {
+        Matcher matcher = new();
+        matcher.AddInclude(filePath);
+
+        using FileStream fileStream = File.OpenRead(tarballPath);
+        using GZipStream decompressorStream = new(fileStream, CompressionMode.Decompress);
+        using TarReader reader = new(decompressorStream);
+
+        TarEntry entry;
+        while ((entry = reader.GetNextEntry()) is not null)
+        {
+            if (matcher.Match(entry.Name).HasMatches)
+            {
+                string outputPath = Path.Join(outputDir, entry.Name);
+                Directory.CreateDirectory(Path.GetDirectoryName(outputPath));
+
+                using FileStream outputFileStream = File.Create(outputPath);
+                entry.DataStream.CopyTo(outputFileStream);
+                break;
+            }
+        }
+    }
+
     public static async Task RetryAsync(Func<Task> executor, ITestOutputHelper outputHelper)
     {
         await Utilities.RetryAsync(