Function scanZipFile

scan-worker.js:356–406

(zipPath, maxFileSize, extSet = new Set(['.stl', '.3mf']))

          });
          flushDiscoveredFiles();
        }
      } else if (enableZipArchives && ext === '.zip') {
          // Scan inside ZIP using same scanExtensions
        // ZIP files still need stat for size check
        const stats = await fs.promises.stat(filePath);
        if (stats.size <= maxFileSize) {
          const zipFiles = await scanZipFile(filePath, maxFileSize, extSet);
          files.push(...zipFiles);
          flushDiscoveredFiles();
        }
      }
      // For all other files, do nothing - no stat() call!
    } catch (error) {
      console.error(`Error processing file ${filePath}:`, error);
    }
  };

  // Start processing
  processNext();

  return donePromise;
}

  async function scanZipFile(zipPath, maxFileSize, extSet = new Set(['.stl', '.3mf'])) {
    const files = [];
  let zip = null;
    try {
    // Ensure StreamZip is loaded
      const StreamZipClass = loadStreamZip();
    zip = new StreamZipClass.async({ file: zipPath });
    const entries = await zip.entries();
    
    for (const entry of Object.values(entries)) {
      if (!entry.isDirectory) {
        if (isMacOsJunkZipEntry(entry.name)) continue;
        const ext = path.extname(entry.name).toLowerCase();
        if (extSet.has(ext)) {
          if (entry.size <= maxFileSize) {
            // Use double colon format: zipPath::entryPath
            const filePath = `${zipPath}::${entry.name}`;
            // For zip entries, we can't easily calculate hash without extracting
            // Hash will be calculated later when the file is accessed
            files.push({
              filePath: filePath,
              fileName: entry.name,
              size: entry.size,
              mtime: entry.time ? new Date(entry.time) : new Date(),
              hash: null, // Hash calculated on-demand for zip entries
              isZipArchive: true,
              zipEntryPath: entry.name,
              zip_path: entry.name
            });
          }
        }