export async function getIdFromFile()

in src/cmd/sign.js [133:165]

• 28 lines of code
• 6 McCabe index (conditional complexity)

export async function getIdFromFile(
  filePath,
  asyncFsReadFile = defaultAsyncFsReadFile,
) {
  let content;

  try {
    content = await asyncFsReadFile(filePath);
  } catch (error) {
    if (isErrorWithCode('ENOENT', error)) {
      log.debug(`No ID file found at: ${filePath}`);
      return;
    }
    throw error;
  }

  let lines = content.toString().split('\n');
  lines = lines.filter((line) => {
    line = line.trim();
    if (line && !line.startsWith('#')) {
      return line;
    }
  });

  const id = lines[0];
  log.debug(`Found extension ID ${id} in ${filePath}`);

  if (!id) {
    throw new UsageError(`No ID found in extension ID file ${filePath}`);
  }

  return id;
}