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package commit
import (
"fmt"
"io"
"github.com/golang/protobuf/proto"
"github.com/grpc-ecosystem/go-grpc-middleware/logging/logrus/ctxlogrus"
log "github.com/sirupsen/logrus"
"gitlab.com/gitlab-org/gitaly/internal/git"
"gitlab.com/gitlab-org/gitaly/internal/git/localrepo"
"gitlab.com/gitlab-org/gitaly/internal/git/lstree"
"gitlab.com/gitlab-org/gitaly/internal/helper"
"gitlab.com/gitlab-org/gitaly/internal/helper/chunk"
"gitlab.com/gitlab-org/gitaly/proto/go/gitalypb"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
func (s *server) ListFiles(in *gitalypb.ListFilesRequest, stream gitalypb.CommitService_ListFilesServer) error {
ctxlogrus.Extract(stream.Context()).WithFields(log.Fields{
"Revision": in.GetRevision(),
}).Debug("ListFiles")
if err := validateListFilesRequest(in); err != nil {
return err
}
repo := in.Repository
if _, err := s.locator.GetRepoPath(repo); err != nil {
return err
}
revision := string(in.GetRevision())
if len(revision) == 0 {
defaultBranch, err := defaultBranchName(stream.Context(), s.gitCmdFactory, repo)
if err != nil {
return helper.DecorateError(codes.NotFound, fmt.Errorf("revision not found %q", revision))
}
if len(defaultBranch) == 0 {
return status.Errorf(codes.FailedPrecondition, "repository does not have a default branch")
}
revision = string(defaultBranch)
}
contained, err := localrepo.New(s.gitCmdFactory, in.Repository, s.cfg).HasRevision(stream.Context(), git.Revision(revision))
if err != nil {
return helper.ErrInternal(err)
}
if !contained {
return stream.Send(&gitalypb.ListFilesResponse{})
}
if err := s.listFiles(repo, revision, stream); err != nil {
return helper.ErrInternal(err)
}
return nil
}
func validateListFilesRequest(in *gitalypb.ListFilesRequest) error {
if err := git.ValidateRevisionAllowEmpty(in.Revision); err != nil {
return helper.ErrInvalidArgument(err)
}
return nil
}
func (s *server) listFiles(repo *gitalypb.Repository, revision string, stream gitalypb.CommitService_ListFilesServer) error {
cmd, err := s.gitCmdFactory.New(stream.Context(), repo, git.SubCmd{Name: "ls-tree",
Flags: []git.Option{git.Flag{Name: "-z"}, git.Flag{Name: "-r"}, git.Flag{Name: "--full-tree"}, git.Flag{Name: "--full-name"}},
PostSepArgs: []string{revision},
})
if err != nil {
return err
}
sender := chunk.New(&listFilesSender{stream: stream})
for parser := lstree.NewParser(cmd); ; {
entry, err := parser.NextEntry()
if err == io.EOF {
break
}
if err != nil {
return err
}
if entry.Type != lstree.Blob {
continue
}
if err := sender.Send(&gitalypb.ListFilesResponse{Paths: [][]byte{[]byte(entry.Path)}}); err != nil {
return err
}
}
return sender.Flush()
}
type listFilesSender struct {
stream gitalypb.CommitService_ListFilesServer
response *gitalypb.ListFilesResponse
}
func (s *listFilesSender) Reset() { s.response = &gitalypb.ListFilesResponse{} }
func (s *listFilesSender) Send() error { return s.stream.Send(s.response) }
func (s *listFilesSender) Append(m proto.Message) {
s.response.Paths = append(s.response.Paths, m.(*gitalypb.ListFilesResponse).Paths...)
}
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