Modernize Benchmarks CI

ts/CI.ts

@@ -0,0 +1,77 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { ipcRenderer } from 'electron';
+
+import { explodePromise } from './util/explodePromise';
+
+type ResolveType = (data: unknown) => void;
+
+export const electronRequire = require;
+
+export class CI {
+  private readonly eventListeners = new Map<string, Array<ResolveType>>();
+
+  private readonly completedEvents = new Map<string, Array<unknown>>();
+
+  constructor(public readonly deviceName: string) {
+    ipcRenderer.on('ci:event', (_, event, data) => {
+      this.handleEvent(event, data);
+    });
+  }
+
+  public async waitForEvent(event: string): Promise<unknown> {
+    const pendingCompleted = this.completedEvents.get(event) || [];
+    const pending = pendingCompleted.shift();
+    if (pending) {
+      window.log.info(`CI: resolving pending result for ${event}`, pending);
+
+      if (pendingCompleted.length === 0) {
+        this.completedEvents.delete(event);
+      }
+
+      return pending;
+    }
+
+    window.log.info(`CI: waiting for event ${event}`);
+    const { resolve, promise } = explodePromise();
+
+    let list = this.eventListeners.get(event);
+    if (!list) {
+      list = [];
+      this.eventListeners.set(event, list);
+    }
+
+    list.push(resolve);
+
+    return promise;
+  }
+
+  public setProvisioningURL(url: string): void {
+    this.handleEvent('provisioning-url', url);
+  }
+
+  public handleEvent(event: string, data: unknown): void {
+    const list = this.eventListeners.get(event) || [];
+    const resolve = list.shift();
+
+    if (resolve) {
+      if (list.length === 0) {
+        this.eventListeners.delete(event);
+      }
+
+      window.log.info(`CI: got event ${event} with data`, data);
+      resolve(data);
+      return;
+    }
+
+    window.log.info(`CI: postponing event ${event}`);
+
+    let resultList = this.completedEvents.get(event);
+    if (!resultList) {
+      resultList = [];
+      this.completedEvents.set(event, resultList);
+    }
+    resultList.push(data);
+  }
+}