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inforefs.go « smarthttp « service « gitaly « internal - gitlab.com/gitlab-org/gitaly.git - Unnamed repository; edit this file 'description' to name the repository.
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package smarthttp

import (
	"context"
	"fmt"
	"io"

	"gitlab.com/gitlab-org/gitaly/v16/internal/bundleuri"
	"gitlab.com/gitlab-org/gitaly/v16/internal/git"
	"gitlab.com/gitlab-org/gitaly/v16/internal/git/pktline"
	"gitlab.com/gitlab-org/gitaly/v16/internal/log"
	"gitlab.com/gitlab-org/gitaly/v16/internal/structerr"
	"gitlab.com/gitlab-org/gitaly/v16/proto/go/gitalypb"
	"gitlab.com/gitlab-org/gitaly/v16/streamio"
)

const (
	uploadPackSvc  = "upload-pack"
	receivePackSvc = "receive-pack"
)

func (s *server) InfoRefsUploadPack(in *gitalypb.InfoRefsRequest, stream gitalypb.SmartHTTPService_InfoRefsUploadPackServer) error {
	repository := in.GetRepository()
	if err := s.locator.ValidateRepository(repository); err != nil {
		return structerr.NewInvalidArgument("%w", err)
	}
	repoPath, err := s.locator.GetRepoPath(repository)
	if err != nil {
		return err
	}

	w := streamio.NewWriter(func(p []byte) error {
		return stream.Send(&gitalypb.InfoRefsResponse{Data: p})
	})

	return s.infoRefCache.tryCache(stream.Context(), in, w, func(w io.Writer) error {
		return s.handleInfoRefs(stream.Context(), uploadPackSvc, repoPath, in, w)
	})
}

func (s *server) InfoRefsReceivePack(in *gitalypb.InfoRefsRequest, stream gitalypb.SmartHTTPService_InfoRefsReceivePackServer) error {
	repository := in.GetRepository()
	if err := s.locator.ValidateRepository(repository); err != nil {
		return structerr.NewInvalidArgument("%w", err)
	}
	repoPath, err := s.locator.GetRepoPath(repository)
	if err != nil {
		return err
	}
	w := streamio.NewWriter(func(p []byte) error {
		return stream.Send(&gitalypb.InfoRefsResponse{Data: p})
	})
	return s.handleInfoRefs(stream.Context(), receivePackSvc, repoPath, in, w)
}

func (s *server) handleInfoRefs(ctx context.Context, service, repoPath string, req *gitalypb.InfoRefsRequest, w io.Writer) error {
	s.logger.WithFields(log.Fields{
		"service": service,
	}).DebugContext(ctx, "handleInfoRefs")

	cmdOpts := []git.CmdOpt{git.WithGitProtocol(s.logger, req), git.WithStdout(w)}
	if service == "receive-pack" {
		cmdOpts = append(cmdOpts, git.WithDisabledHooks())
	}

	gitConfig, err := git.ConvertConfigOptions(req.GitConfigOptions)
	if err != nil {
		return err
	}
	gitConfig = append(gitConfig, bundleuri.InfoRefsGitConfig(ctx)...)

	cmdOpts = append(cmdOpts, git.WithConfig(gitConfig...))

	if _, err := pktline.WriteString(w, fmt.Sprintf("# service=git-%s\n", service)); err != nil {
		return structerr.NewInternal("pktLine: %w", err)
	}

	if err := pktline.WriteFlush(w); err != nil {
		return structerr.NewInternal("pktFlush: %w", err)
	}

	cmd, err := s.gitCmdFactory.New(ctx, req.GetRepository(), git.Command{
		Name:  service,
		Flags: []git.Option{git.Flag{Name: "--stateless-rpc"}, git.Flag{Name: "--advertise-refs"}},
		Args:  []string{repoPath},
	}, cmdOpts...)
	if err != nil {
		return structerr.NewInternal("cmd: %w", err)
	}

	if err := cmd.Wait(); err != nil {
		return structerr.NewInternal("wait: %w", err)
	}

	return nil
}