Function getExtensionType

src/codeScan/git/diffProcessor.ts:297–309

* Check file extension against known text and binary extension lists * @returns 'text' if known text extension, 'binary' if known binary extension, 'unknown' otherwise

(filePath: string)

 * @returns 'text' if known text extension, 'binary' if known binary extension, 'unknown' otherwise
 */
function getExtensionType(filePath: string): 'text' | 'binary' | 'unknown' {
  const ext = path.extname(filePath).toLowerCase().slice(1); // Remove leading dot

  if (textExtensions.includes(ext)) {
    return 'text';
  }

  if (binaryExtensions.includes(ext)) {
    return 'binary';
  }

  return 'unknown';
}

/**
 * Determine text/binary status for a single file