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io.go
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io.go
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/*
Copyright 2020 The Kubernetes 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
http://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 proxy
import (
"fmt"
"k8s.io/kubernetes/test/e2e/framework"
"k8s.io/kubernetes/test/e2e/storage/drivers/csi-test/mock/service"
)
type PodDirIO struct {
F *framework.Framework
Namespace string
PodName string
ContainerName string
}
var _ service.DirIO = PodDirIO{}
func (p PodDirIO) DirExists(path string) (bool, error) {
stdout, stderr, err := p.execute([]string{
"sh",
"-c",
fmt.Sprintf("if ! [ -e '%s' ]; then echo notexist; elif [ -d '%s' ]; then echo dir; else echo nodir; fi", path, path),
})
if err != nil {
return false, fmt.Errorf("error executing dir test commands: stderr=%q, %v", stderr, err)
}
switch stdout {
case "notexist":
return false, nil
case "nodir":
return false, fmt.Errorf("%s: not a directory", path)
case "dir":
return true, nil
default:
return false, fmt.Errorf("unexpected output from dir test commands: %q", stdout)
}
}
func (p PodDirIO) Mkdir(path string) error {
_, stderr, err := p.execute([]string{"mkdir", path})
if err != nil {
return fmt.Errorf("mkdir %q: stderr=%q, %v", path, stderr, err)
}
return nil
}
func (p PodDirIO) RemoveAll(path string) error {
_, stderr, err := p.execute([]string{"rm", "-rf", path})
if err != nil {
return fmt.Errorf("rm -rf %q: stderr=%q, %v", path, stderr, err)
}
return nil
}
func (p PodDirIO) execute(command []string) (string, string, error) {
return p.F.ExecWithOptions(framework.ExecOptions{
Command: command,
Namespace: p.Namespace,
PodName: p.PodName,
ContainerName: p.ContainerName,
CaptureStdout: true,
CaptureStderr: true,
Quiet: true,
})
}