Function readHeader

types.go:888–958

nolint:cyclop,funlen

(r util.Reader)

//nolint:cyclop,funlen
func readHeader(r util.Reader) (*header, error) {
	h := new(header)

	id, err := r.ReadByte()
	if err != nil {
		return nil, fmt.Errorf("readHeader: ReadByte error: %w", err)
	}

	if id == idArchiveProperties {
		/*
			id, err = r.ReadByte()
			if err != nil {
				return nil, fmt.Errorf("readHeader: ReadByte error: %w", err)
			}
		*/
		return nil, errors.New("sevenzip: TODO idArchiveProperties") //nolint:err113
	}

	if id == idAdditionalStreamsInfo {
		/*
			id, err = r.ReadByte()
			if err != nil {
				return nil, fmt.Errorf("readHeader: ReadByte error: %w", err)
			}
		*/
		return nil, errors.New("sevenzip: TODO idAdditionalStreamsInfo") //nolint:err113
	}

	if id == idMainStreamsInfo {
		if h.streamsInfo, err = readStreamsInfo(r); err != nil {
			return nil, err
		}

		id, err = r.ReadByte()
		if err != nil {
			return nil, fmt.Errorf("readHeader: ReadByte error: %w", err)
		}
	}

	if id == idFilesInfo {
		if h.filesInfo, err = readFilesInfo(r); err != nil {
			return nil, err
		}

		id, err = r.ReadByte()
		if err != nil {
			return nil, fmt.Errorf("readHeader: ReadByte error: %w", err)
		}
	}

	if id != idEnd {
		return nil, errUnexpectedID
	}

	if h.streamsInfo == nil || h.filesInfo == nil {
		return h, nil
	}