Monorepo with yarn workspaces requires yarn 3.2

2022-04-21 13:57:45 +02:00
parent 32f3501773
commit 1f842ec1d6
167 changed files with 10424 additions and 8263 deletions
@@ -0,0 +1,71 @@
+import fs from "fs/promises";
+import watch from "node-watch";
+import path from "path";
+import { createSandbox } from "./environments/node_sandbox";
+import { System } from "./system";
+
+function extractPlugName(localPath: string): string {
+  const baseName = path.basename(localPath);
+  return baseName.substring(0, baseName.length - ".plug.json".length);
+}
+
+export class DiskPlugLoader<HookT> {
+  private system: System<HookT>;
+  private plugPath: string;
+
+  constructor(system: System<HookT>, plugPath: string) {
+    this.system = system;
+    this.plugPath = plugPath;
+  }
+
+  watcher() {
+    watch(this.plugPath, (eventType, localPath) => {
+      if (!localPath.endsWith(".plug.json")) {
+        return;
+      }
+      Promise.resolve()
+        .then(async () => {
+          try {
+            // let localPath = path.join(this.plugPath, filename);
+            const plugName = extractPlugName(localPath);
+            console.log("Change detected for", plugName);
+            try {
+              await fs.stat(localPath);
+            } catch (e) {
+              // Likely removed
+              await this.system.unload(plugName);
+            }
+            const plugDef = await this.loadPlugFromFile(localPath);
+          } catch (e) {
+            console.log("Ignoring something FYI", e);
+            // ignore, error handled by loadPlug
+          }
+        })
+        .catch(console.error);
+    });
+  }
+
+  private async loadPlugFromFile(localPath: string) {
+    const plug = await fs.readFile(localPath, "utf8");
+    const plugName = extractPlugName(localPath);
+
+    console.log("Now loading plug", plugName);
+    try {
+      const plugDef = JSON.parse(plug);
+      await this.system.load(plugName, plugDef, createSandbox);
+      return plugDef;
+    } catch (e) {
+      console.error("Could not parse plugin file", e);
+      throw e;
+    }
+  }
+
+  async loadPlugs() {
+    for (let filename of await fs.readdir(this.plugPath)) {
+      if (filename.endsWith(".plug.json")) {
+        let localPath = path.join(this.plugPath, filename);
+        await this.loadPlugFromFile(localPath);
+      }
+    }
+  }
+}