oven-sh/bun · error · Error

Invalid GITHUB_REPOSITORY format: ${repository}

Error message

Invalid GITHUB_REPOSITORY format: ${repository}

What it means

GITHUB_REPOSITORY must decompose as 'owner/repo' via split('/'). The variable defaults to 'oven-sh/bun', so this only throws when the env var IS set but malformed — e.g. it contains no slash ('bun') or an empty component ('oven-sh/').

Source

Thrown at scripts/auto-close-duplicates.ts:229

🤖 Generated with [Claude Code](https://claude.ai/code)`,
  });
}

async function autoCloseDuplicates(): Promise<void> {
  console.log("[DEBUG] Starting auto-close duplicates script");

  const token = process.env.GITHUB_TOKEN;
  if (!token) {
    throw new Error("GITHUB_TOKEN environment variable is required");
  }
  console.log("[DEBUG] GitHub token found");

  // Parse GITHUB_REPOSITORY (format: "owner/repo")
  const repository = process.env.GITHUB_REPOSITORY || "oven-sh/bun";
  const [owner, repo] = repository.split("/");
  if (!owner || !repo) {
    throw new Error(`Invalid GITHUB_REPOSITORY format: ${repository}`);
  }
  console.log(`[DEBUG] Repository: ${owner}/${repo}`);

  const threeDaysAgo = new Date();
  threeDaysAgo.setDate(threeDaysAgo.getDate() - 3);
  console.log(`[DEBUG] Checking for duplicate comments older than: ${threeDaysAgo.toISOString()}`);

  console.log("[DEBUG] Fetching open issues created more than 3 days ago...");
  const allIssues: GitHubIssue[] = [];
  let page = 1;
  const perPage = 100;

  while (true) {
    const pageIssues: GitHubIssue[] = await githubRequest(
      `/repos/${owner}/${repo}/issues?state=open&per_page=${perPage}&page=${page}`,
      token,
    );

View on GitHub (pinned to 8c5296ac45)

Solutions

1. Set GITHUB_REPOSITORY to the exact 'owner/repo' form (e.g. oven-sh/bun)
2. In Actions, pass ${{ github.repository }} rather than typing it manually
3. Unset the variable to fall back to the default 'oven-sh/bun'

Example fix

# before
GITHUB_REPOSITORY=bun bun scripts/auto-close-duplicates.ts

# after
GITHUB_REPOSITORY=oven-sh/bun bun scripts/auto-close-duplicates.ts

const repository = process.env.GITHUB_REPOSITORY ?? 'oven-sh/bun';
if (!/^[^/\s]+\/[^/\s]+$/.test(repository)) {
  throw new Error(`GITHUB_REPOSITORY must be 'owner/repo', got: ${repository}`);
}

When it happens

Trigger: A runner or workflow sets GITHUB_REPOSITORY to just the repo name or a URL; manual invocation exporting a wrong value; trailing content after the second component is tolerated but a missing/empty owner or repo is not.

Common situations: Custom self-hosted runner not injecting the standard GITHUB_REPOSITORY; script reused in another repo with a hand-written env value.

Related errors

• GITHUB_TOKEN environment variable is required
• Wrong first byte
• Wrong second byte
• Wrong third byte
• First buffer was modified

AI-assisted analysis of oven-sh/bun@8c5296ac45 (2026-08-16). Data as JSON: /api/errors/86815d8068af457d. Report an issue: GitHub.