func copyCustomUserDataParts()

in pkg/providers/amifamily/bootstrap/eksbootstrap.go [141:172]

• 31 lines of code
• 9 McCabe index (conditional complexity)

func copyCustomUserDataParts(writer *multipart.Writer, customUserData string) error {
	if customUserData == "" {
		// No custom user data specified, so nothing to copy over.
		return nil
	}
	reader, err := getMultiPartReader(customUserData)
	if err != nil {
		return fmt.Errorf("parsing custom user data input %w", err)
	}
	for {
		p, err := reader.NextPart()
		if errors.Is(err, io.EOF) {
			break
		}
		if err != nil {
			return fmt.Errorf("parsing custom user data input %w", err)
		}
		slurp, err := io.ReadAll(p)
		if err != nil {
			return fmt.Errorf("parsing custom user data input %w", err)
		}
		partWriter, err := writer.CreatePart(p.Header)
		if err != nil {
			return fmt.Errorf("parsing custom user data input %w", err)
		}
		_, err = partWriter.Write(slurp)
		if err != nil {
			return fmt.Errorf("parsing custom user data input %w", err)
		}
	}
	return nil
}