1 files changed, 0 insertions, 201 deletions
diff --git a/vendor/github.com/jackc/pgproto3/v2/frontend.go b/vendor/github.com/jackc/pgproto3/v2/frontend.go
deleted file mode 100644
index c33dfb084..000000000
--- a/vendor/github.com/jackc/pgproto3/v2/frontend.go
+++ /dev/null
@@ -1,201 +0,0 @@
-package pgproto3
-
-import (
-	"encoding/binary"
-	"errors"
-	"fmt"
-	"io"
-)
-
-// Frontend acts as a client for the PostgreSQL wire protocol version 3.
-type Frontend struct {
-	cr ChunkReader
-	w  io.Writer
-
-	// Backend message flyweights
-	authenticationOk                AuthenticationOk
-	authenticationCleartextPassword AuthenticationCleartextPassword
-	authenticationMD5Password       AuthenticationMD5Password
-	authenticationSASL              AuthenticationSASL
-	authenticationSASLContinue      AuthenticationSASLContinue
-	authenticationSASLFinal         AuthenticationSASLFinal
-	backendKeyData                  BackendKeyData
-	bindComplete                    BindComplete
-	closeComplete                   CloseComplete
-	commandComplete                 CommandComplete
-	copyBothResponse                CopyBothResponse
-	copyData                        CopyData
-	copyInResponse                  CopyInResponse
-	copyOutResponse                 CopyOutResponse
-	copyDone                        CopyDone
-	dataRow                         DataRow
-	emptyQueryResponse              EmptyQueryResponse
-	errorResponse                   ErrorResponse
-	functionCallResponse            FunctionCallResponse
-	noData                          NoData
-	noticeResponse                  NoticeResponse
-	notificationResponse            NotificationResponse
-	parameterDescription            ParameterDescription
-	parameterStatus                 ParameterStatus
-	parseComplete                   ParseComplete
-	readyForQuery                   ReadyForQuery
-	rowDescription                  RowDescription
-	portalSuspended                 PortalSuspended
-
-	bodyLen    int
-	msgType    byte
-	partialMsg bool
-	authType   uint32
-}
-
-// NewFrontend creates a new Frontend.
-func NewFrontend(cr ChunkReader, w io.Writer) *Frontend {
-	return &Frontend{cr: cr, w: w}
-}
-
-// Send sends a message to the backend.
-func (f *Frontend) Send(msg FrontendMessage) error {
-	_, err := f.w.Write(msg.Encode(nil))
-	return err
-}
-
-func translateEOFtoErrUnexpectedEOF(err error) error {
-	if err == io.EOF {
-		return io.ErrUnexpectedEOF
-	}
-	return err
-}
-
-// Receive receives a message from the backend. The returned message is only valid until the next call to Receive.
-func (f *Frontend) Receive() (BackendMessage, error) {
-	if !f.partialMsg {
-		header, err := f.cr.Next(5)
-		if err != nil {
-			return nil, translateEOFtoErrUnexpectedEOF(err)
-		}
-
-		f.msgType = header[0]
-		f.bodyLen = int(binary.BigEndian.Uint32(header[1:])) - 4
-		f.partialMsg = true
-	}
-
-	msgBody, err := f.cr.Next(f.bodyLen)
-	if err != nil {
-		return nil, translateEOFtoErrUnexpectedEOF(err)
-	}
-
-	f.partialMsg = false
-
-	var msg BackendMessage
-	switch f.msgType {
-	case '1':
-		msg = &f.parseComplete
-	case '2':
-		msg = &f.bindComplete
-	case '3':
-		msg = &f.closeComplete
-	case 'A':
-		msg = &f.notificationResponse
-	case 'c':
-		msg = &f.copyDone
-	case 'C':
-		msg = &f.commandComplete
-	case 'd':
-		msg = &f.copyData
-	case 'D':
-		msg = &f.dataRow
-	case 'E':
-		msg = &f.errorResponse
-	case 'G':
-		msg = &f.copyInResponse
-	case 'H':
-		msg = &f.copyOutResponse
-	case 'I':
-		msg = &f.emptyQueryResponse
-	case 'K':
-		msg = &f.backendKeyData
-	case 'n':
-		msg = &f.noData
-	case 'N':
-		msg = &f.noticeResponse
-	case 'R':
-		var err error
-		msg, err = f.findAuthenticationMessageType(msgBody)
-		if err != nil {
-			return nil, err
-		}
-	case 's':
-		msg = &f.portalSuspended
-	case 'S':
-		msg = &f.parameterStatus
-	case 't':
-		msg = &f.parameterDescription
-	case 'T':
-		msg = &f.rowDescription
-	case 'V':
-		msg = &f.functionCallResponse
-	case 'W':
-		msg = &f.copyBothResponse
-	case 'Z':
-		msg = &f.readyForQuery
-	default:
-		return nil, fmt.Errorf("unknown message type: %c", f.msgType)
-	}
-
-	err = msg.Decode(msgBody)
-	return msg, err
-}
-
-// Authentication message type constants.
-// See src/include/libpq/pqcomm.h for all
-// constants.
-const (
-	AuthTypeOk                = 0
-	AuthTypeCleartextPassword = 3
-	AuthTypeMD5Password       = 5
-	AuthTypeSCMCreds          = 6
-	AuthTypeGSS               = 7
-	AuthTypeGSSCont           = 8
-	AuthTypeSSPI              = 9
-	AuthTypeSASL              = 10
-	AuthTypeSASLContinue      = 11
-	AuthTypeSASLFinal         = 12
-)
-
-func (f *Frontend) findAuthenticationMessageType(src []byte) (BackendMessage, error) {
-	if len(src) < 4 {
-		return nil, errors.New("authentication message too short")
-	}
-	f.authType = binary.BigEndian.Uint32(src[:4])
-
-	switch f.authType {
-	case AuthTypeOk:
-		return &f.authenticationOk, nil
-	case AuthTypeCleartextPassword:
-		return &f.authenticationCleartextPassword, nil
-	case AuthTypeMD5Password:
-		return &f.authenticationMD5Password, nil
-	case AuthTypeSCMCreds:
-		return nil, errors.New("AuthTypeSCMCreds is unimplemented")
-	case AuthTypeGSS:
-		return nil, errors.New("AuthTypeGSS is unimplemented")
-	case AuthTypeGSSCont:
-		return nil, errors.New("AuthTypeGSSCont is unimplemented")
-	case AuthTypeSSPI:
-		return nil, errors.New("AuthTypeSSPI is unimplemented")
-	case AuthTypeSASL:
-		return &f.authenticationSASL, nil
-	case AuthTypeSASLContinue:
-		return &f.authenticationSASLContinue, nil
-	case AuthTypeSASLFinal:
-		return &f.authenticationSASLFinal, nil
-	default:
-		return nil, fmt.Errorf("unknown authentication type: %d", f.authType)
-	}
-}
-
-// GetAuthType returns the authType used in the current state of the frontend.
-// See SetAuthType for more information.
-func (f *Frontend) GetAuthType() uint32 {
-	return f.authType
-}