475 lines
18 KiB
C#
475 lines
18 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.IO.Compression;
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using System.Linq;
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using System.Net;
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using System.Text;
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using Microsoft.Build.Framework;
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using Microsoft.Build.Utilities;
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using Mono.Cecil;
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using Mono.Linker;
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using Mono.Linker.Steps;
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namespace Ooui.Wasm.Build.Tasks
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{
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public class BuildDistTask : Task
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{
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const string SdkUrl = "https://xamjenkinsartifact.azureedge.net/test-mono-mainline-webassembly/108/highsierra/sdks/wasm/mono-wasm-a14f41ca260.zip";
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const string AssemblyExtension = ".bin";
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[Required]
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public string Assembly { get; set; }
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[Required]
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public string OutputPath { get; set; }
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public string ReferencePath { get; set; }
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bool ok = false;
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public override bool Execute ()
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{
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try {
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ok = true;
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InstallSdk ();
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GetBcl ();
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CreateDist ();
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DeleteOldAssemblies ();
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CopyRuntime ();
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LinkAssemblies ();
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RenameAssemblies ();
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ExtractClientJs ();
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DiscoverEntryPoint ();
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GenerateHtml ();
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return ok;
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}
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catch (Exception ex) {
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//Console.WriteLine (ex);
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Log.LogErrorFromException (ex);
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return false;
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}
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}
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string sdkPath;
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void InstallSdk ()
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{
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var sdkName = Path.GetFileNameWithoutExtension (new Uri (SdkUrl).AbsolutePath.Replace ('/', Path.DirectorySeparatorChar));
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Log.LogMessage ("SDK: " + sdkName);
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string tmpDir = Path.GetTempPath ();
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sdkPath = Path.Combine (tmpDir, sdkName);
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Log.LogMessage ("SDK Path: " + sdkPath);
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if (Directory.Exists (sdkPath)
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&& Directory.Exists (Path.Combine (sdkPath, "release")))
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return;
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var client = new WebClient ();
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var zipPath = sdkPath + ".zip";
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Log.LogMessage ($"Downloading {sdkName} to {zipPath}");
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if (File.Exists (zipPath))
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File.Delete (zipPath);
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client.DownloadFile (SdkUrl, zipPath);
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var sdkTempPath = Path.Combine (tmpDir, Guid.NewGuid ().ToString ());
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ZipFile.ExtractToDirectory (zipPath, sdkTempPath);
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if (Directory.Exists (sdkPath))
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Directory.Delete (sdkPath, true);
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Directory.Move (sdkTempPath, sdkPath);
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Log.LogMessage ($"Extracted {sdkName} to {sdkPath}");
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}
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string bclPath;
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Dictionary<string, string> bclAssemblies;
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void GetBcl ()
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{
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bclPath = Path.Combine (sdkPath, "bcl");
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var reals = Directory.GetFiles (bclPath, "*.dll");
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var facades = Directory.GetFiles (Path.Combine (bclPath, "Facades"), "*.dll");
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var allFiles = reals.Concat (facades);
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bclAssemblies = allFiles.ToDictionary (x => Path.GetFileName (x));
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}
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string distPath;
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string managedPath;
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void CreateDist ()
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{
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var outputPath = Path.GetFullPath (OutputPath);
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distPath = Path.Combine (outputPath, "dist");
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managedPath = Path.Combine (distPath, "managed");
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Directory.CreateDirectory (managedPath);
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}
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void DeleteOldAssemblies ()
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{
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foreach (var dll in Directory.GetFiles (managedPath, "*.dll")) {
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File.Delete (dll);
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}
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foreach (var dll in Directory.GetFiles (managedPath, "*" + AssemblyExtension)) {
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File.Delete (dll);
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}
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}
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void CopyRuntime ()
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{
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var rtPath = Path.Combine (sdkPath, "release");
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var files = new[] { "mono.wasm", "mono.js" };
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foreach (var f in files) {
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var src = Path.Combine (rtPath, f);
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var dest = Path.Combine (distPath, f);
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Log.LogMessage ($"Runtime {src} -> {dest}");
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File.Copy (src, dest, true);
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}
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File.Copy (Path.Combine (sdkPath, "server.py"), Path.Combine (distPath, "server.py"), true);
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}
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List<string> linkedAsmPaths;
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List<string> refpaths;
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void LinkAssemblies ()
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{
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var references = ReferencePath.Split (';').Select (x => x.Trim ()).Where (x => x.Length > 0).ToList ();
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refpaths = new List<string> ();
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foreach (var r in references) {
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var name = Path.GetFileName (r);
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if (bclAssemblies.ContainsKey (name)) {
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refpaths.Add (bclAssemblies[name]);
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//Console.WriteLine ($"+ {name}");
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}
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else {
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refpaths.Add (r);
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//Console.WriteLine ($"- {r}");
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}
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}
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var asmPath = Path.GetFullPath (Assembly);
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var pipeline = GetLinkerPipeline ();
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var resolver = new LinkerAssemblyResolver (this);
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var asmParameters = new ReaderParameters {
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AssemblyResolver = resolver,
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MetadataResolver = new LinkerMetadataResolver (resolver)
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};
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using (var context = new LinkContext (pipeline, resolver, asmParameters, new UnintializedContextFactory ())) {
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context.CoreAction = AssemblyAction.CopyUsed;
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context.UserAction = AssemblyAction.CopyUsed;
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context.OutputDirectory = managedPath;
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context.IgnoreUnresolved = false;
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pipeline.PrependStep (new ResolveFromAssemblyStep (asmPath, ResolveFromAssemblyStep.RootVisibility.Any));
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var refdirs = refpaths.Select (x => Path.GetDirectoryName (x)).Distinct ().ToList ();
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refdirs.Insert (0, Path.Combine (bclPath, "Facades"));
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refdirs.Insert (0, bclPath);
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foreach (var d in refdirs.Distinct ()) {
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context.Resolver.AddSearchDirectory (d);
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}
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pipeline.AddStepAfter (typeof (LoadReferencesStep), new LoadI18nAssemblies (I18nAssemblies.None));
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DeleteOldAssemblies ();
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pipeline.Process (context);
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}
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linkedAsmPaths = Directory.GetFiles (managedPath, "*.dll").OrderBy (x => Path.GetFileName (x)).ToList ();
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}
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class PreserveUsingAttributesStep : ResolveStep
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{
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readonly HashSet<string> ignoreAsmNames;
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public PreserveUsingAttributesStep (IEnumerable<string> ignoreAsmNames)
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{
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this.ignoreAsmNames = new HashSet<string> (ignoreAsmNames);
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}
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protected override void Process ()
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{
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var asms = Context.GetAssemblies ();
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foreach (var a in asms.Where (x => !ignoreAsmNames.Contains (x.Name.Name))) {
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foreach (var m in a.Modules) {
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foreach (var t in m.Types) {
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PreserveTypeIfRequested (t);
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}
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}
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}
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}
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void PreserveTypeIfRequested (TypeDefinition type)
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{
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var typePreserved = IsTypePreserved (type);
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if (IsTypePreserved (type)) {
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MarkAndPreserveAll (type);
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}
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else {
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foreach (var m in type.Methods.Where (IsMethodPreserved)) {
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Annotations.AddPreservedMethod (type, m);
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}
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foreach (var t in type.NestedTypes) {
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PreserveTypeIfRequested (t);
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}
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}
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}
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static bool IsTypePreserved (TypeDefinition m)
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{
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return m.CustomAttributes.FirstOrDefault (x => x.AttributeType.Name.StartsWith ("Preserve", StringComparison.Ordinal)) != null;
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}
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static bool IsMethodPreserved (MethodDefinition m)
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{
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return m.CustomAttributes.FirstOrDefault (x => x.AttributeType.Name.StartsWith ("Preserve", StringComparison.Ordinal)) != null;
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}
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void MarkAndPreserveAll (TypeDefinition type)
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{
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Annotations.MarkAndPush (type);
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Annotations.SetPreserve (type, TypePreserve.All);
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if (!type.HasNestedTypes) {
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Tracer.Pop ();
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return;
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}
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foreach (TypeDefinition nested in type.NestedTypes)
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MarkAndPreserveAll (nested);
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Tracer.Pop ();
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}
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}
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Pipeline GetLinkerPipeline ()
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{
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IEnumerable<string> bclNames = bclAssemblies.Values.Select (Path.GetFileNameWithoutExtension);
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var p = new Pipeline ();
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p.AppendStep (new DontLinkExeStep ());
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p.AppendStep (new LoadReferencesStep ());
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p.AppendStep (new PreserveUsingAttributesStep (bclNames));
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p.AppendStep (new BlacklistStep ());
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p.AppendStep (new LinkBclStep (bclNames));
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p.AppendStep (new TypeMapStep ());
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p.AppendStep (new MarkStepWithUnresolvedLogging (this));
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p.AppendStep (new SweepStep ());
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p.AppendStep (new CleanStep ());
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p.AppendStep (new RegenerateGuidStep ());
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p.AppendStep (new OutputStep ());
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return p;
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}
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class DontLinkExeStep : BaseStep
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{
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protected override void Process ()
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{
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foreach (var a in Context.GetAssemblies ()) {
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Annotations.SetAction (a, AssemblyAction.Copy);
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}
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}
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}
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class LinkBclStep : BaseStep
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{
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HashSet<string> bclNames;
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List<Tuple<string, string>> preserveTypeNames;
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public LinkBclStep (IEnumerable<string> bclNames)
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{
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// CSLA cannot tolerate mscorlib being linked (uses reflection over types it doesn't reference)
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this.bclNames = new HashSet<string> (bclNames.Where(x => x != "mscorlib"));
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preserveTypeNames = new List<Tuple<string, string>> {
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Tuple.Create ("System", "System.ComponentModel.IEditableObject"),
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Tuple.Create ("System", "System.ComponentModel.IDataErrorInfo"),
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};
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}
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protected override void Process ()
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{
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var asms = Context.GetAssemblies ();
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foreach (var a in asms) {
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if (bclNames.Contains (a.Name.Name)) {
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Annotations.SetAction (a, AssemblyAction.Link);
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}
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}
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foreach (var p in preserveTypeNames) {
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var asm = asms.FirstOrDefault (x => x.Name.Name == p.Item1);
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if (asm == null)
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throw new Exception ($"Could not find assembly {p.Item1}");
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var t = asm.MainModule.GetType (p.Item2);
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if (t == null)
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throw new Exception ($"Could not find type {p.Item2} in {p.Item1}");
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Annotations.SetPreserve (t, TypePreserve.All);
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}
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//foreach (var a in asms) {
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// var act = Annotations.GetAction (a);
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// Console.WriteLine ($"{act} {a.Name.Name}");
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//}
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}
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}
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class MarkStepWithUnresolvedLogging : MarkStep
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{
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BuildDistTask task;
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public MarkStepWithUnresolvedLogging (BuildDistTask task)
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{
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this.task = task;
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}
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protected override void HandleUnresolvedType (TypeReference reference)
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{
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task.ok = false;
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task.Log.LogError ($"Linker failed to resolve type {reference} in {reference.Scope}");
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}
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protected override void HandleUnresolvedMethod (MethodReference reference)
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{
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task.ok = false;
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task.Log.LogError ($"Linker failed to resolve method {reference}");
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}
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}
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void RenameAssemblies ()
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{
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for (int i = 0; i < linkedAsmPaths.Count; i++) {
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var path = linkedAsmPaths[i];
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var newPath = Path.ChangeExtension(path, AssemblyExtension);
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File.Move (path, newPath);
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linkedAsmPaths[i] = newPath;
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}
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}
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void ExtractClientJs ()
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{
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var oouiPath = refpaths.FirstOrDefault (x => Path.GetFileName (x).Equals ("Ooui.dll", StringComparison.InvariantCultureIgnoreCase));
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if (oouiPath == null) {
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Log.LogError ("Ooui.dll not included in the project");
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return;
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}
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var oouiAsm = AssemblyDefinition.ReadAssembly (oouiPath);
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var clientJs = oouiAsm.MainModule.Resources.FirstOrDefault (x => x.Name.EndsWith ("Client.js", StringComparison.InvariantCultureIgnoreCase)) as EmbeddedResource;
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if (clientJs == null) {
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Log.LogError ("Ooui.dll missing client javascript");
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return;
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}
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var dest = Path.Combine (distPath, "ooui.js");
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using (var srcs = clientJs.GetResourceStream ()) {
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using (var dests = new FileStream (dest, FileMode.Create, FileAccess.Write)) {
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srcs.CopyTo (dests);
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}
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}
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Log.LogMessage ($"Client JS {dest}");
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}
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MethodDefinition entryPoint;
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void DiscoverEntryPoint ()
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{
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var asm = AssemblyDefinition.ReadAssembly (Assembly);
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entryPoint = asm.EntryPoint;
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if (entryPoint == null) {
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throw new Exception ($"{Path.GetFileName (Assembly)} is missing an entry point");
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}
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}
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void GenerateHtml ()
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{
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var htmlPath = Path.Combine (distPath, "index.html");
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using (var w = new StreamWriter (htmlPath, false, new UTF8Encoding (false))) {
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w.Write (@"<!DOCTYPE html>
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<html>
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<head>
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<meta charset=""utf-8"" />
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<meta name=""viewport"" content=""width=device-width, initial-scale=1"" />
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<link rel=""stylesheet"" href=""https://ajax.aspnetcdn.com/ajax/bootstrap/3.3.7/css/bootstrap.min.css"" />
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<link rel=""stylesheet"" href=""https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css"">
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</head>
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<body>
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<div id=""ooui-body"" class=""container-fluid"">
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<p id=""loading""><i class=""fa fa-refresh fa-spin"" style=""font-size:14px;margin-right:0.5em;""></i> Loading...</p>
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</div>
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<script defer type=""text/javascript"" src=""ooui.js""></script>
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<script type=""text/javascript"">
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var assemblies = [");
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var head = "";
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foreach (var l in linkedAsmPaths.Select (x => Path.GetFileName (x))) {
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w.Write (head);
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w.Write ('\"');
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w.Write (l);
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w.Write ('\"');
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head = ",";
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}
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w.WriteLine ($@"];
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document.addEventListener(""DOMContentLoaded"", function(event) {{
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oouiWasm(""{entryPoint.DeclaringType.Module.Assembly.Name.Name}"", ""{entryPoint.DeclaringType.Namespace}"", ""{entryPoint.DeclaringType.Name}"", ""{entryPoint.Name}"", assemblies);
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}});
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</script>
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<script defer type=""text/javascript"" src=""mono.js""></script>
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</body>
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</html>");
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}
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Log.LogMessage ($"HTML {htmlPath}");
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}
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class LinkerAssemblyResolver : Mono.Linker.AssemblyResolver
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{
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BuildDistTask task;
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public LinkerAssemblyResolver (BuildDistTask buildDistTask)
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{
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task = buildDistTask;
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}
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public override AssemblyDefinition Resolve (AssemblyNameReference name, ReaderParameters parameters)
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{
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AssemblyDefinition asm = null;
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if (!AssemblyCache.TryGetValue (name.Name, out asm)) {
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var path = task.refpaths.FirstOrDefault (x => {
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var rname = Path.GetFileNameWithoutExtension (x);
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var eq = rname.Equals (name.Name, StringComparison.InvariantCultureIgnoreCase);
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return eq;
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});
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if (path != null) {
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//Console.WriteLine ($"SUCCESS {path}");
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asm = ModuleDefinition.ReadModule (path, parameters).Assembly;
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CacheAssembly (asm);
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}
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return base.Resolve (name, parameters);
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}
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return asm;
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}
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}
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class LinkerMetadataResolver : MetadataResolver
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{
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readonly AssemblyNameReference mscorlibScope = new AssemblyNameReference ("mscorlib", new Version (1, 0));
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public LinkerMetadataResolver (LinkerAssemblyResolver asmResolver)
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: base (asmResolver)
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{
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}
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public override TypeDefinition Resolve (TypeReference type)
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{
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var def = base.Resolve (type);
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if (def != null) return def;
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var scope = type.Scope;
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if (scope == null) return null;
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switch (scope.MetadataScopeType) {
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case MetadataScopeType.AssemblyNameReference: {
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AssemblyNameReference asmRef = (AssemblyNameReference)scope;
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if (asmRef.Name == "System.Runtime") {
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return base.Resolve (new TypeReference (type.Namespace, type.Name, type.Module, mscorlibScope));
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}
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}
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break;
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}
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return def;
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}
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}
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}
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}
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