Function is3xRoot

src/core/reverseEngine.js:206–230

(root)

 * @returns {Object}
 */
function detectProjectVersion(sourcePath, versionHint) {
  const normalizedSourcePath = path.resolve(sourcePath);
  const sourceBasename = path.basename(normalizedSourcePath);
  const candidateRoots = [normalizedSourcePath];

  // 兼容用户直接传入 assets/res 目录的场景
  if (sourceBasename === 'assets' || sourceBasename === 'res') {
    candidateRoots.push(path.dirname(normalizedSourcePath));
  }

  const uniqueCandidateRoots = [...new Set(candidateRoots)];

  /**
   * Find first existing path, or first match of a basename regex under a dir.
   * Used for MD5 Cache builds: main.<hash>.js / settings.<hash>.js / project.<hash>.js
   */
  function findExistingPath(pathArray) {
    for (const filePath of pathArray) {
      if (fs.existsSync(filePath)) {
        return filePath;
      }
    }
    return null;
  }

  function findHashedFile(dir, pattern) {
    if (!fs.existsSync(dir)) return null;
    let entries;