Deno pack file to yyyyMMdd - dir

pack-to-ymd-dir.ts

import {format} from "https://deno.land/std@0.166.0/datetime/mod.ts";
import {basename, dirname} from "https://deno.land/std@0.166.0/path/mod.ts";

const args = Deno.args;

if (args.length === 0) {
  console.log("No arguments provided");
  Deno.exit(1);
}

await moveToYmdDir();

async function moveToYmdDir() {
  const file = args[0];
  const filePath = Deno.realPathSync(file);
  const fileInfo = await Deno.stat(filePath);
  
  if (fileInfo.birthtime === null) {
    console.log("File read error");
    Deno.exit(1);
  }
  
  const date = new Date(fileInfo.birthtime);
  const ymd = format(date, "yyyyMMdd");
  const parent = dirname(filePath);
  const base = basename(filePath).split(".")[0];
  const baseWithExt = basename(filePath);
  const newDirName = `${parent}/${ymd}-${base}`;
  await Deno.mkdir(newDirName, { recursive: true });
  const newFile = `${newDirName}/${baseWithExt}`;
  await Deno.rename(filePath, newFile);
}