Function install

scripts/install.js:214–261

()

}

function install() {
  const mirrorUrls = getMirrorUrls(process.env);
  const downloadUrls = [GITHUB_URL, ...mirrorUrls];

  fs.mkdirSync(binDir, { recursive: true });

  const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), "lark-cli-"));
  const archivePath = path.join(tmpDir, archiveName);

  try {
    // Walk the chain in order; stop at the first success. Default chain:
    // GitHub → derived(npm_config_registry)? → npmmirror. The npmmirror
    // tail preserves the pre-PR safety net when a corporate proxy doesn't
    // actually host /-/binary/<pkg>/...
    let lastErr;
    let downloaded = false;
    for (const url of downloadUrls) {
      try {
        download(url, archivePath);
        downloaded = true;
        break;
      } catch (e) {
        lastErr = e;
      }
    }
    if (!downloaded) throw lastErr;

    const expectedHash = getExpectedChecksum(archiveName);
    verifyChecksum(archivePath, expectedHash);

    if (isWindows) {
      extractZipWindows(archivePath, tmpDir);
    } else {
      execFileSync("tar", ["-xzf", archivePath, "-C", tmpDir], {
        stdio: "ignore",
      });
    }

    const binaryName = NAME + (isWindows ? ".exe" : "");
    const extractedBinary = path.join(tmpDir, binaryName);

    fs.copyFileSync(extractedBinary, dest);
    fs.chmodSync(dest, 0o755);
    console.log(`${NAME} v${VERSION} installed successfully`);
  } finally {
    fs.rmSync(tmpDir, { recursive: true, force: true });
  }
}

function getExpectedChecksum(archiveName, checksumsDir) {
  const dir = checksumsDir || path.join(__dirname, "..");