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package commit
import (
"fmt"
"io"
"strings"
"gitlab.com/gitlab-org/gitaly/internal/git"
"gitlab.com/gitlab-org/gitaly/internal/git/catfile"
"gitlab.com/gitlab-org/gitaly/internal/helper"
"gitlab.com/gitlab-org/gitaly/proto/go/gitalypb"
"gitlab.com/gitlab-org/gitaly/streamio"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
func sendTreeEntry(stream gitalypb.CommitService_TreeEntryServer, c *catfile.Batch, revision, path string, limit int64) error {
treeEntry, err := NewTreeEntryFinder(c).FindByRevisionAndPath(revision, path)
if err != nil {
return err
}
if treeEntry == nil || len(treeEntry.Oid) == 0 {
return helper.DecorateError(codes.Unavailable, stream.Send(&gitalypb.TreeEntryResponse{}))
}
if treeEntry.Type == gitalypb.TreeEntry_COMMIT {
response := &gitalypb.TreeEntryResponse{
Type: gitalypb.TreeEntryResponse_COMMIT,
Mode: treeEntry.Mode,
Oid: treeEntry.Oid,
}
if err := stream.Send(response); err != nil {
return status.Errorf(codes.Unavailable, "TreeEntry: send: %v", err)
}
return nil
}
if treeEntry.Type == gitalypb.TreeEntry_TREE {
treeInfo, err := c.Info(treeEntry.Oid)
if err != nil {
return err
}
response := &gitalypb.TreeEntryResponse{
Type: gitalypb.TreeEntryResponse_TREE,
Oid: treeEntry.Oid,
Size: treeInfo.Size,
Mode: treeEntry.Mode,
}
return helper.DecorateError(codes.Unavailable, stream.Send(response))
}
objectInfo, err := c.Info(treeEntry.Oid)
if err != nil {
return status.Errorf(codes.Internal, "TreeEntry: %v", err)
}
if strings.ToLower(treeEntry.Type.String()) != objectInfo.Type {
return status.Errorf(
codes.Internal,
"TreeEntry: mismatched object type: tree-oid=%s object-oid=%s entry-type=%s object-type=%s",
treeEntry.Oid, objectInfo.Oid, treeEntry.Type.String(), objectInfo.Type,
)
}
dataLength := objectInfo.Size
if limit > 0 && dataLength > limit {
dataLength = limit
}
response := &gitalypb.TreeEntryResponse{
Type: gitalypb.TreeEntryResponse_BLOB,
Oid: objectInfo.Oid,
Size: objectInfo.Size,
Mode: treeEntry.Mode,
}
if dataLength == 0 {
return helper.DecorateError(codes.Unavailable, stream.Send(response))
}
blobReader, err := c.Blob(objectInfo.Oid)
if err != nil {
return err
}
sw := streamio.NewWriter(func(p []byte) error {
response.Data = p
if err := stream.Send(response); err != nil {
return status.Errorf(codes.Unavailable, "TreeEntry: send: %v", err)
}
// Use a new response so we don't send other fields (Size, ...) over and over
response = &gitalypb.TreeEntryResponse{}
return nil
})
_, err = io.CopyN(sw, blobReader, dataLength)
return err
}
func (s *server) TreeEntry(in *gitalypb.TreeEntryRequest, stream gitalypb.CommitService_TreeEntryServer) error {
if err := validateRequest(in); err != nil {
return status.Errorf(codes.InvalidArgument, "TreeEntry: %v", err)
}
requestPath := string(in.GetPath())
// path.Dir("api/docs") => "api" Correct!
// path.Dir("api/docs/") => "api/docs" WRONG!
if len(requestPath) > 1 {
requestPath = strings.TrimRight(requestPath, "/")
}
c, err := catfile.New(stream.Context(), in.Repository)
if err != nil {
return err
}
return sendTreeEntry(stream, c, string(in.GetRevision()), requestPath, in.GetLimit())
}
func validateRequest(in *gitalypb.TreeEntryRequest) error {
if err := git.ValidateRevision(in.Revision); err != nil {
return err
}
if len(in.GetPath()) == 0 {
return fmt.Errorf("empty Path")
}
return nil
}
|
