javascript 相对副本（递归）

Posted 2021-05-04

/**
 * Copy files maintaining relative paths
 *
 * @param {String} fileGlob The pattern to match the desired files
 * @param {String} from The current location
 * @param {String} to The destination
 * @return {Promise}
 */
function relativeCopy(fileGlob, from, to) {
  return new Promise((resolve, reject) => {
    glob(fileGlob, { cwd: from, nodir: true }, (err, files) => {
      if (err) reject(err);
      files.forEach(file => {
        const origin = path.join(from, file);
        const dest = path.join(to, file);
        const data = fs.readFileSync(origin, 'utf-8');
        recursiveMkDir(path.dirname(dest));
        fs.writeFileSync(dest, data);
        resolve();
      })
    })
  });
}


/**
 * Recursively create directories
 *
 * @param {String} dir The directory path to create
 */
function recursiveMkDir(dir) {
  if (!fs.existsSync(dir)) {
    recursiveMkDir(path.dirname(dir));
    fs.mkdirSync(dir);
  }
}