[動画/写真] メタ情報から DateTimeOriginal/作成日/更新日 の指定とファイル名の変更

format-photos.ts

import { execSync } from 'child_process';
import fs from 'node:fs/promises';
import _fs from 'fs';
import path from 'path';
import { parse, isBefore, format, isValid } from 'date-fns';

const directoryPath = __dirname + '/files';

const files = await fs.readdir(directoryPath);

const datePatterns = ["CreateDate", "CreationDate", "ContentCreateDate", "DateTimeOriginal"];

files.forEach((file) => {
  const filePath = path.join(directoryPath, file);
  const fileExtension = path.extname(filePath).toLowerCase();

  try {
    const stdout = execSync(`exiftool -s "${filePath}" | grep Date`).toString();

    const dates: { pattern: string, date: Date }[] = [];

    datePatterns.forEach(pattern => {
      const match = stdout.match(new RegExp(`${pattern}\\s+:\\s+(.+)`));
      if (match && match[1]) {
        let date = parse(match[1], "yyyy:MM:dd HH:mm:ss", new Date())
        if (!isValid(date)) {
          date = parse(match[1], "yyyy:MM:dd HH:mm:ssxxx", new Date())
        }
        isValid(date) && dates.push({ pattern, date })
      }
    });

    if (dates.length > 0) {
      const oldestDate = dates.reduce((oldest, currentDate) => isBefore(currentDate.date, oldest.date) ? currentDate : oldest);

      execSync(`exiftool -overwrite_original "-AllDates<${oldestDate.pattern}" "${filePath}"`);

      let newFileName = `DS_${format(oldestDate.date, 'yyyyMMdd_HHmmss')}${fileExtension}`;
      let newFilePath = path.join(directoryPath, newFileName);

      let counter = 2;
      while (_fs.existsSync(newFilePath)) {
        newFileName = `DS_${format(oldestDate.date, 'yyyyMMdd_HHmmss')}_${counter}${fileExtension}`;
        newFilePath = path.join(directoryPath, newFileName);
        counter++;
      }

      execSync(`mv "${filePath}" "${newFilePath}"`);

      const touchDate = format(oldestDate.date, "yyyyMMddHHmm.ss");
      execSync(`touch -t ${touchDate} "${newFilePath}"`);
      console.log(`Updated ${file} to ${newFileName}`);
    } else {
      console.log(`No matching date patterns found for ${file}`);
    }
  } catch (error) {
    console.error(`Error processing ${file}:`, error);
  }
});

package.json

{
  "name": "format-photos",
  "version": "1.0.0",
  "author": "usagizmo",
  "dependencies": {
    "date-fns": "^2.30.0"
  }
}