Function getParentFolder

src/misc.ts:217–227

(a: string)

 * @returns
 */
export const getParentFolder = (a: string) => {
  const b = path.posix.dirname(a);
  if (b === "." || b === "/") {
    // the root
    return "/";
  }
  if (b.endsWith("/")) {
    return b;
  }
  return `${b}/`;
};

/**
 * https://stackoverflow.com/questions/54511144