Initial commit

src/main/workers/gitPull.ts

@@ -0,0 +1,56 @@
+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, remote, branch, ref } = workerData as {
+	dir: string;
+	remote: string;
+	branch: string;
+	ref?: string;
+};
+
+const onProgress = (...args: unknown[]) =>
+	port.postMessage({ cb: 'onProgress', args });
+
+const removeUntrackedFiles = async () => {
+	const status = await git.statusMatrix({ fs, dir });
+	await Promise.all(
+		status
+			.filter(([, HEAD]) => HEAD === 0)
+			.map(([filepath]) => fs.remove(`${dir}/${filepath}`))
+	);
+};
+
+const run = async () => {
+	if (ref) {
+		await git.fetch({ fs, http, dir, tags: true, singleBranch: false, onProgress });
+		await git.checkout({ fs, dir, force: true, ref, onProgress });
+		await removeUntrackedFiles();
+		return;
+	}
+
+	await git.checkout({
+		fs,
+		dir,
+		force: true,
+		ref: `${remote}/${branch}`,
+		onProgress
+	});
+	await removeUntrackedFiles();
+	await git.pull({
+		fs,
+		http,
+		dir,
+		ref: branch,
+		singleBranch: true,
+		author: { name: 'Octo Launcher' },
+		onProgress
+	});
+};
+
+run().then(() => port.postMessage(true));