Lazy plugs (#596)

* Manifest caching and lazy loading of plug workers
* Fixes #546 Plug unloading after time out

plugs/markdown/markdown_render.test.ts

@@ -5,16 +5,19 @@ import { System } from "../../plugos/system.ts";
 import { createSandbox } from "../../plugos/environments/deno_sandbox.ts";
 import { loadMarkdownExtensions } from "../../common/markdown_parser/markdown_ext.ts";
 import { renderMarkdownToHtml } from "./markdown_render.ts";
-import { assertEquals } from "../../test_deps.ts";
 
 Deno.test("Markdown render", async () => {
   const system = new System<any>("server");
   await system.load(
     new URL("../../dist_plug_bundle/_plug/editor.plug.js", import.meta.url),
+    "editor",
+    0,
     createSandbox,
   );
   await system.load(
     new URL("../../dist_plug_bundle/_plug/tasks.plug.js", import.meta.url),
+    "tasks",
+    0,
     createSandbox,
   );
   const lang = buildMarkdown(loadMarkdownExtensions(system));

plugs/plug-manager/plugmanager.ts

@@ -68,7 +68,7 @@ export async function updatePlugsCommand() {
 
     const allPlugNames = [...builtinPlugNames, ...allCustomPlugNames];
     // And delete extra ones
-    for (const existingPlug of await space.listPlugs()) {
+    for (const { name: existingPlug } of await space.listPlugs()) {
       const plugName = existingPlug.substring(
         "_plug/".length,
         existingPlug.length - ".plug.js".length,