OctoLauncher 1.3.1

Manifest-based CDN updater and mod manager for the OctoWoW 1.12.1 client:
launcher-owned realmlist, torrent-backed content sync with bundled aria2c,
antivirus and Defender exclusion handling, hardware-aware render distance,
optional client tweaks and mods, and the in-launcher news feed.

src/main/workers/gitClone.ts

@@ -0,0 +1,46 @@
+import { workerData, parentPort } from 'worker_threads';
+
+import git from 'isomorphic-git';
+import http from 'isomorphic-git/http/node';
+import fs from 'fs-extra';
+
+const port = parentPort;
+if (!port) throw new Error('IllegalState');
+
+const { dir, url, ref } = workerData;
+
+const tmpDir = `${dir}.tmp`;
+const bakDir = `${dir}.bak`;
+
+const run = async () => {
+	await fs.remove(tmpDir);
+	await git.clone({
+		dir: tmpDir,
+		fs,
+		http,
+		url,
+		ref,
+		singleBranch: !ref || ref === 'master' || ref === 'main',
+		onProgress: (...args) => port.postMessage({ cb: 'onProgress', args })
+	});
+
+	await fs.remove(bakDir);
+	const hadExisting = await fs.pathExists(dir);
+	if (hadExisting) await fs.move(dir, bakDir);
+
+	try {
+		await fs.move(tmpDir, dir);
+	} catch (e) {
+		if (hadExisting) await fs.move(bakDir, dir).catch(() => undefined);
+		throw e;
+	}
+
+	await fs.remove(bakDir).catch(() => undefined);
+};
+
+run()
+	.then(() => port.postMessage(true))
+	.catch(async err => {
+		await fs.remove(tmpDir).catch(() => undefined);
+		throw err;
+	});