Function readRegularFileBytes

src/node/utils/attachments/readAttachmentFromPath.ts:156–178

(
  args: ReadAttachmentFromPathArgs,
  resolvedPath: string,
  expectedSize: number
)

}

async function readRegularFileBytes(
  args: ReadAttachmentFromPathArgs,
  resolvedPath: string,
  expectedSize: number
): Promise<Buffer> {
  if (expectedSize > MAX_ATTACH_FILE_SIZE_BYTES) {
    throw new Error(buildTooLargeMessage(expectedSize));
  }

  let bytes: Buffer;
  try {
    bytes = await readStreamToBuffer(args.runtime.readFile(resolvedPath, args.abortSignal));
  } catch (error) {
    throw buildMissingFileError(resolvedPath, error);
  }

  assert(
    bytes.length === expectedSize,
    `Expected to read ${expectedSize} bytes from '${resolvedPath}', got ${bytes.length}`
  );

  return bytes;
}

function createUnsupportedAttachmentError(
  args: ReadAttachmentFromPathArgs,