A special target for testing local nuget builds (#14446)

* BuildToNuGetCache target

* Skip more stuff that's not required for quick local testing of apps

---------

Co-authored-by: Max Katz <maxkatz6@outlook.com>

nukebuild/Build.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Diagnostics;
 using System.IO;
+using System.IO.Compression;
 using System.Linq;
 using System.Runtime.InteropServices;
 using System.Threading.Tasks;
@@ -38,9 +39,12 @@ partial class Build : NukeBuild
     [PackageExecutable("Microsoft.DotNet.GenAPI.Tool", "Microsoft.DotNet.GenAPI.Tool.dll", Framework = "net8.0")]
     Tool ApiGenTool;
 
+
+    
     protected override void OnBuildInitialized()
     {
-        Parameters = new BuildParameters(this);
+        Parameters = new BuildParameters(this, ScheduledTargets.Contains(BuildToNuGetCache));
+
         Information("Building version {0} of Avalonia ({1}) using version {2} of Nuke.",
             Parameters.Version,
             Parameters.Configuration,
@@ -82,6 +86,12 @@ partial class Build : NukeBuild
         c.AddProperty("PackageVersion", Parameters.Version)
             .SetConfiguration(Parameters.Configuration)
             .SetVerbosity(DotNetVerbosity.Minimal);
+        if (Parameters.IsPackingToLocalCache)
+            c
+                .AddProperty("ForcePackAvaloniaNative", "True")
+                .AddProperty("SkipObscurePlatforms", "True")
+                .AddProperty("SkipBuildingSamples", "True")
+                .AddProperty("SkipBuildingTests", "True");
         return c;
     }
     DotNetBuildSettings ApplySetting(DotNetBuildSettings c, Configure<DotNetBuildSettings> configurator = null) =>
@@ -325,6 +335,39 @@ partial class Build : NukeBuild
         .DependsOn(Package)
         .DependsOn(ZipFiles);
 
+    Target BuildToNuGetCache => _ => _
+        .DependsOn(CreateNugetPackages)
+        .Executes(() =>
+        {
+            if (!Parameters.IsPackingToLocalCache)
+                throw new InvalidOperationException();
+            
+            foreach (var path in Parameters.NugetRoot.GlobFiles("*.nupkg"))
+            {
+                using var f = File.Open(path.ToString(), FileMode.Open, FileAccess.Read);
+                using var zip = new ZipArchive(f, ZipArchiveMode.Read);
+                var nuspecEntry = zip.Entries.First(e => e.FullName.EndsWith(".nuspec") && e.FullName == e.Name);
+                var packageId = XDocument.Load(nuspecEntry.Open()).Document.Root
+                    .Elements().First(x => x.Name.LocalName == "metadata")
+                    .Elements().First(x => x.Name.LocalName == "id").Value;
+
+                var packagePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile),
+                    ".nuget",
+                    "packages",
+                    packageId.ToLowerInvariant(),
+                    BuildParameters.LocalBuildVersion);
+                if (Directory.Exists(packagePath))
+                    Directory.Delete(packagePath, true);
+                Directory.CreateDirectory(packagePath);
+                zip.ExtractToDirectory(packagePath);
+                File.WriteAllText(Path.Combine(packagePath, ".nupkg.metadata"), @"{
+  ""version"": 2,
+  ""contentHash"": ""e900dFK7jHJ2WcprLcgJYQoOMc6ejRTwAAMi0VGOFbSczcF98ZDaqwoQIiyqpAwnja59FSbV+GUUXfc3vaQ2Jg=="",
+  ""source"": ""https://api.nuget.org/v3/index.json""
+}");
+            }
+        });
+
     Target GenerateCppHeaders => _ => _.Executes(() =>
     {
         var file = MicroComCodeGenerator.Parse(

nukebuild/BuildParameters.cs

@@ -53,7 +53,10 @@ public partial class Build
         public bool IsMyGetRelease { get; }
         public bool IsNuGetRelease { get; }
         public bool PublishTestResults { get; }
-        public string Version { get; }
+        public string Version { get; set; }
+        public const string LocalBuildVersion = "9999.0.0-localbuild";
+        public bool IsPackingToLocalCache { get; private set; }
+
         public AbsolutePath ArtifactsDir { get; }
         public AbsolutePath NugetIntermediateRoot { get; }
         public AbsolutePath NugetRoot { get; }
@@ -68,7 +71,7 @@ public partial class Build
         public bool UpdateApiValidationSuppression { get; }
         public AbsolutePath ApiValidationSuppressionFiles { get; }
 
-        public BuildParameters(Build b)
+        public BuildParameters(Build b, bool isPackingToLocalCache)
         {
             // ARGUMENTS
             Configuration = b.Configuration ?? "Release";
@@ -124,6 +127,12 @@ public partial class Build
 
                 PublishTestResults = true;
             }
+            
+            if (isPackingToLocalCache)
+            {
+                IsPackingToLocalCache = true;
+                Version = LocalBuildVersion;
+            }
 
             // DIRECTORIES
             ArtifactsDir = RootDirectory / "artifacts";

nukebuild/build-to-cache.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+dotnet run --project _build.csproj -- --target BuildToNuGetCache --skip CompileHtmlPreviewer Compile Clean