Ooui-tws-port/Ooui.Wasm.Build.Tasks/BuildDistTask.cs

374 lines
14 KiB
C#

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