Clean Forks on GitHub

index.js

import { Octokit } from '@octokit/rest';

const client = new Octokit({
	auth: process.env.GITHUB_TOKEN,
});

const repos = await client.repos.listForUser({
	username: 'maraisr',
	per_page: 200,
});

console.log(`repo count: ${repos.data.length}`);

const forks = repos.data.filter((i) => i.fork);

console.log(`forks count: ${forks.data?.length ?? 0}`);

const fork_prs = await Promise.all(
	forks.map(async (repo) => {
		const prs = await client.pulls.list({
			owner: repo.owner.login,
			repo: repo.name,
			per_page: 200,
		});
		return { repo, prs: prs.data };
	})
);

const promises = [];
for (const fork of fork_prs) {
	const has_open = fork.prs.find((i) => i.state === 'open');

	console.log(`fork open prs: ${fork.prs.filter((i) => i.state === 'open').length}`);

	if (has_open) {
		console.log(`[OPEN] ${has_open.html_url}`);
	} else {
		console.log(`[DELETE] ${fork.repo.html_url}`);
		promises.push(
			client.repos.delete({
				owner: fork.repo.owner.login,
				repo: fork.repo.name,
			})
		);
	}
}

await Promise.all(promises);

package.json

{
	"type": "module",
	"dependencies": {
		"@octokit/rest": "^18.10.0"
	}
}