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// Copyright 2021 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package utils
import (
"context"
"errors"
"fmt"
"github.com/containerd/containerd/errdefs"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
// ErrToGRPC wraps containerd's ToGRPC error mapper which depends on
// github.com/pkg/errors to work correctly. Once we upgrade to containerd v1.4,
// this function can go away and we can use errdefs.ToGRPC directly instead.
//
// TODO(gvisor.dev/issue/6232): Remove after upgrading to containerd v1.4
func ErrToGRPC(err error) error {
return errToGRPCMsg(err, err.Error())
}
// ErrToGRPCf maps the error to grpc error codes, assembling the formatting
// string and combining it with the target error string.
//
// TODO(gvisor.dev/issue/6232): Remove after upgrading to containerd v1.4
func ErrToGRPCf(err error, format string, args ...interface{}) error {
formatted := fmt.Sprintf(format, args...)
msg := fmt.Sprintf("%s: %s", formatted, err.Error())
return errToGRPCMsg(err, msg)
}
func errToGRPCMsg(err error, msg string) error {
if err == nil {
return nil
}
if _, ok := status.FromError(err); ok {
return err
}
switch {
case errors.Is(err, errdefs.ErrInvalidArgument):
return status.Errorf(codes.InvalidArgument, msg)
case errors.Is(err, errdefs.ErrNotFound):
return status.Errorf(codes.NotFound, msg)
case errors.Is(err, errdefs.ErrAlreadyExists):
return status.Errorf(codes.AlreadyExists, msg)
case errors.Is(err, errdefs.ErrFailedPrecondition):
return status.Errorf(codes.FailedPrecondition, msg)
case errors.Is(err, errdefs.ErrUnavailable):
return status.Errorf(codes.Unavailable, msg)
case errors.Is(err, errdefs.ErrNotImplemented):
return status.Errorf(codes.Unimplemented, msg)
case errors.Is(err, context.Canceled):
return status.Errorf(codes.Canceled, msg)
case errors.Is(err, context.DeadlineExceeded):
return status.Errorf(codes.DeadlineExceeded, msg)
}
return errdefs.ToGRPC(err)
}
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