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package protoutil
import (
"errors"
"fmt"
"github.com/golang/protobuf/protoc-gen-go/descriptor"
"gitlab.com/gitlab-org/gitaly/v14/proto/go/gitalypb"
"google.golang.org/protobuf/proto"
"google.golang.org/protobuf/reflect/protoregistry"
"google.golang.org/protobuf/runtime/protoimpl"
)
// GetOpExtension gets the OperationMsg from a method descriptor
func GetOpExtension(m *descriptor.MethodDescriptorProto) (*gitalypb.OperationMsg, error) {
ext, err := getExtension(m.GetOptions(), gitalypb.E_OpType)
if err != nil {
return nil, err
}
return ext.(*gitalypb.OperationMsg), nil
}
// IsInterceptedService returns whether the serivce is intercepted by Praefect.
func IsInterceptedService(s *descriptor.ServiceDescriptorProto) (bool, error) {
return getBoolExtension(s.GetOptions(), gitalypb.E_Intercepted)
}
// GetRepositoryExtension gets the repository extension from a field descriptor
func GetRepositoryExtension(m *descriptor.FieldDescriptorProto) (bool, error) {
return getBoolExtension(m.GetOptions(), gitalypb.E_Repository)
}
// GetStorageExtension gets the storage extension from a field descriptor
func GetStorageExtension(m *descriptor.FieldDescriptorProto) (bool, error) {
return getBoolExtension(m.GetOptions(), gitalypb.E_Storage)
}
// GetTargetRepositoryExtension gets the target_repository extension from a field descriptor
func GetTargetRepositoryExtension(m *descriptor.FieldDescriptorProto) (bool, error) {
return getBoolExtension(m.GetOptions(), gitalypb.E_TargetRepository)
}
// GetAdditionalRepositoryExtension gets the target_repository extension from a field descriptor
func GetAdditionalRepositoryExtension(m *descriptor.FieldDescriptorProto) (bool, error) {
return getBoolExtension(m.GetOptions(), gitalypb.E_AdditionalRepository)
}
func getBoolExtension(options proto.Message, extension *protoimpl.ExtensionInfo) (bool, error) {
val, err := getExtension(options, extension)
if err != nil {
if errors.Is(err, protoregistry.NotFound) {
return false, nil
}
return false, err
}
return val.(bool), nil
}
func getExtension(options proto.Message, extension *protoimpl.ExtensionInfo) (interface{}, error) {
if !proto.HasExtension(options, extension) {
return nil, fmt.Errorf("protoutil.getExtension %q: %w", extension.TypeDescriptor().FullName(), protoregistry.NotFound)
}
return proto.GetExtension(options, extension), nil
}
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