Files
velero/pkg/util/filesystem/file_system.go
Andy Goldstein 130512187a Refactor plugin management
Refactor plugin management:
- support multiple plugins per executable
- support restarting a plugin process in the event it terminates
- simplify plugin lifecycle management by using separate managers for
  each scope (server vs backup vs restore)

Signed-off-by: Andy Goldstein <andy.goldstein@gmail.com>
2018-07-31 08:34:57 -07:00

93 lines
2.3 KiB
Go

/*
Copyright 2017 the Heptio Ark contributors.
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 filesystem
import (
"io"
"io/ioutil"
"os"
)
// Interface defines methods for interacting with an
// underlying file system.
type Interface interface {
TempDir(dir, prefix string) (string, error)
MkdirAll(path string, perm os.FileMode) error
Create(name string) (io.WriteCloser, error)
RemoveAll(path string) error
ReadDir(dirname string) ([]os.FileInfo, error)
ReadFile(filename string) ([]byte, error)
DirExists(path string) (bool, error)
TempFile(dir, prefix string) (NameWriteCloser, error)
Stat(path string) (os.FileInfo, error)
}
type NameWriteCloser interface {
io.WriteCloser
Name() string
}
func NewFileSystem() Interface {
return &osFileSystem{}
}
type osFileSystem struct{}
func (fs *osFileSystem) TempDir(dir, prefix string) (string, error) {
return ioutil.TempDir(dir, prefix)
}
func (fs *osFileSystem) MkdirAll(path string, perm os.FileMode) error {
return os.MkdirAll(path, perm)
}
func (fs *osFileSystem) Create(name string) (io.WriteCloser, error) {
return os.Create(name)
}
func (fs *osFileSystem) RemoveAll(path string) error {
return os.RemoveAll(path)
}
func (fs *osFileSystem) ReadDir(dirname string) ([]os.FileInfo, error) {
return ioutil.ReadDir(dirname)
}
func (fs *osFileSystem) ReadFile(filename string) ([]byte, error) {
return ioutil.ReadFile(filename)
}
func (fs *osFileSystem) DirExists(path string) (bool, error) {
_, err := os.Stat(path)
if err == nil {
return true, nil
}
if os.IsNotExist(err) {
return false, nil
}
return false, err
}
func (fs *osFileSystem) TempFile(dir, prefix string) (NameWriteCloser, error) {
return ioutil.TempFile(dir, prefix)
}
func (fs *osFileSystem) Stat(path string) (os.FileInfo, error) {
return os.Stat(path)
}