Function calculateFileHashWithRetry

main.js:7963–7994

(filePath, maxRetries = 2)

  try {
    // Check if this is a zip entry
    const pathInfo = parseZipPath(filePath);
    let actualFilePath = filePath;
    let shouldCleanup = false;
    
    if (pathInfo.isZipEntry && isMacOsResourceForkEntry(pathInfo.entryPath)) {
      return null;
    }
    
    if (pathInfo.isZipEntry) {
      // Extract to temp file first
      try {
        actualFilePath = await extractModelFromZip(pathInfo.zipPath, pathInfo.entryPath);
        shouldCleanup = true;
      } catch (error) {
        console.error('Error extracting zip entry for 3MF metadata:', error);
        return null;
      }
    }
    
    // Check if file exists
    if (!fs.existsSync(actualFilePath)) {
      console.error('File does not exist:', actualFilePath);
      return null;
    }
    
    const data = await fs.promises.readFile(actualFilePath);
    if (!isLikelyValidZipBuffer(data)) {
      return null;
    }
    
    // Use JSZip to extract the 3MF file (which is a zip file)
    const zip = new JSZip();
    let contents;
    try {
      contents = await zip.loadAsync(data);