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path: root/plumbing/transport/internal/common/server.go
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package common

import (
	"fmt"
	"io"

	"srcd.works/go-git.v4/plumbing/protocol/packp"
	"srcd.works/go-git.v4/plumbing/transport"
	"srcd.works/go-git.v4/utils/ioutil"
)

// ServerCommand is used for a single server command execution.
type ServerCommand struct {
	Stderr io.Writer
	Stdout io.WriteCloser
	Stdin  io.Reader
}

func ServeUploadPack(cmd ServerCommand, s transport.UploadPackSession) (err error) {
	ioutil.CheckClose(cmd.Stdout, &err)

	ar, err := s.AdvertisedReferences()
	if err != nil {
		return err
	}

	if err := ar.Encode(cmd.Stdout); err != nil {
		return err
	}

	req := packp.NewUploadPackRequest()
	if err := req.Decode(cmd.Stdin); err != nil {
		return err
	}

	var resp *packp.UploadPackResponse
	resp, err = s.UploadPack(req)
	if err != nil {
		return err
	}

	return resp.Encode(cmd.Stdout)
}

func ServeReceivePack(cmd ServerCommand, s transport.ReceivePackSession) error {
	ar, err := s.AdvertisedReferences()
	if err != nil {
		return fmt.Errorf("internal error in advertised references: %s", err)
	}

	if err := ar.Encode(cmd.Stdout); err != nil {
		return fmt.Errorf("error in advertised references encoding: %s", err)
	}

	req := packp.NewReferenceUpdateRequest()
	if err := req.Decode(cmd.Stdin); err != nil {
		return fmt.Errorf("error decoding: %s", err)
	}

	rs, err := s.ReceivePack(req)
	if rs != nil {
		if err := rs.Encode(cmd.Stdout); err != nil {
			return fmt.Errorf("error in encoding report status %s", err)
		}
	}

	if err != nil {
		return fmt.Errorf("error in receive pack: %s", err)
	}

	return nil
}