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|
package ref
import (
"bytes"
"fmt"
"io"
"github.com/prometheus/client_golang/prometheus"
"gitlab.com/gitlab-org/gitaly/internal/git/catfile"
"gitlab.com/gitlab-org/gitaly/internal/git/log"
"gitlab.com/gitlab-org/gitaly/internal/helper"
"gitlab.com/gitlab-org/gitaly/internal/metadata/featureflag"
"gitlab.com/gitlab-org/gitaly/internal/rubyserver"
"gitlab.com/gitlab-org/gitaly/proto/go/gitalypb"
"gitlab.com/gitlab-org/gitaly/streamio"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
var getTagMessagesRequests = prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "gitaly_get_tag_messages_total",
Help: "Counter of go vs ruby implementation of GetTagMessages",
},
[]string{"implementation"},
)
func init() {
prometheus.MustRegister(getTagMessagesRequests)
}
func (s *server) GetTagMessages(request *gitalypb.GetTagMessagesRequest, stream gitalypb.RefService_GetTagMessagesServer) error {
if err := validateGetTagMessagesRequest(request); err != nil {
return status.Errorf(codes.InvalidArgument, "GetTagMessages: %v", err)
}
if err := s.getAndStreamTagMessages(request, stream); err != nil {
return helper.ErrInternal(err)
}
return nil
}
func validateGetTagMessagesRequest(request *gitalypb.GetTagMessagesRequest) error {
if request.GetRepository() == nil {
return fmt.Errorf("empty Repository")
}
return nil
}
func (s *server) getAndStreamTagMessages(request *gitalypb.GetTagMessagesRequest, stream gitalypb.RefService_GetTagMessagesServer) error {
if featureflag.IsEnabled(stream.Context(), featureflag.GetTagMessagesGo) {
getTagMessagesRequests.WithLabelValues("go").Inc()
return getAndStreamTagMessagesGo(request, stream)
}
getTagMessagesRequests.WithLabelValues("ruby").Inc()
return getAndStreamTagMessagesRuby(s.ruby, request, stream)
}
func getAndStreamTagMessagesGo(request *gitalypb.GetTagMessagesRequest, stream gitalypb.RefService_GetTagMessagesServer) error {
ctx := stream.Context()
c, err := catfile.New(ctx, request.GetRepository())
if err != nil {
return err
}
for _, tagID := range request.GetTagIds() {
tag, err := log.GetTagCatfile(c, tagID, "", false, false)
if err != nil {
return fmt.Errorf("failed to get tag: %v", err)
}
if err := stream.Send(&gitalypb.GetTagMessagesResponse{TagId: tagID}); err != nil {
return err
}
sw := streamio.NewWriter(func(p []byte) error {
return stream.Send(&gitalypb.GetTagMessagesResponse{Message: p})
})
msgReader := bytes.NewReader(tag.Message)
if _, err = io.Copy(sw, msgReader); err != nil {
return fmt.Errorf("failed to send response: %v", err)
}
}
return nil
}
func getAndStreamTagMessagesRuby(ruby *rubyserver.Server, request *gitalypb.GetTagMessagesRequest, stream gitalypb.RefService_GetTagMessagesServer) error {
ctx := stream.Context()
client, err := ruby.RefServiceClient(ctx)
if err != nil {
return err
}
clientCtx, err := rubyserver.SetHeaders(ctx, request.GetRepository())
if err != nil {
return err
}
rubyStream, err := client.GetTagMessages(clientCtx, request)
if err != nil {
return err
}
return rubyserver.Proxy(func() error {
resp, err := rubyStream.Recv()
if err != nil {
md := rubyStream.Trailer()
stream.SetTrailer(md)
return err
}
return stream.Send(resp)
})
}
|
