kubernetes/vendor/github.com/containerd/errdefs/grpc.go

// ToGRPC will attempt to map the backend containerd error into a grpc error,
// using the original error message as a description.
//
// Further information may be extracted from certain errors depending on their
// type.
//
// If the error is unmapped, the original error will be returned to be handled
// by the regular grpc error handling stack.
func ToGRPC(err error) error { … }

// ToGRPCf maps the error to grpc error codes, assembling the formatting string
// and combining it with the target error string.
//
// This is equivalent to errdefs.ToGRPC(fmt.Errorf("%s: %w", fmt.Sprintf(format, args...), err))
func ToGRPCf(err error, format string, args ...interface{ … }

// FromGRPC returns the underlying error from a grpc service based on the grpc error code
func FromGRPC(err error) error { … }

// rebaseMessage removes the repeats for an error at the end of an error
// string. This will happen when taking an error over grpc then remapping it.
//
// Effectively, we just remove the string of cls from the end of err if it
// appears there.
func rebaseMessage(cls error, err error) string { … }

func isGRPCError(err error) bool { … }

func code(err error) codes.Code { … }

func errDesc(err error) string { … }