1/*
2Copyright 2014 The Kubernetes Authors.
3
4Licensed under the Apache License, Version 2.0 (the "License");
5you may not use this file except in compliance with the License.
6You may obtain a copy of the License at
7
8    http://www.apache.org/licenses/LICENSE-2.0
9
10Unless required by applicable law or agreed to in writing, software
11distributed under the License is distributed on an "AS IS" BASIS,
12WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13See the License for the specific language governing permissions and
14limitations under the License.
15*/
16
17package exec
18
19// ExitError is an interface that presents an API similar to os.ProcessState, which is
20// what ExitError from os/exec is.  This is designed to make testing a bit easier and
21// probably loses some of the cross-platform properties of the underlying library.
22type ExitError interface {
23	String() string
24	Error() string
25	Exited() bool
26	ExitStatus() int
27}
28
29// CodeExitError is an implementation of ExitError consisting of an error object
30// and an exit code (the upper bits of os.exec.ExitStatus).
31type CodeExitError struct {
32	Err  error
33	Code int
34}
35
36var _ ExitError = CodeExitError{}
37
38func (e CodeExitError) Error() string {
39	return e.Err.Error()
40}
41
42func (e CodeExitError) String() string {
43	return e.Err.Error()
44}
45
46func (e CodeExitError) Exited() bool {
47	return true
48}
49
50func (e CodeExitError) ExitStatus() int {
51	return e.Code
52}
53