114 lines
2.8 KiB
Go
114 lines
2.8 KiB
Go
/*
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Copyright The Velero Contributors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package filesystem
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import (
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"io"
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"os"
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"path/filepath"
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)
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// Interface defines methods for interacting with an
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// underlying file system.
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type Interface interface {
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TempDir(dir, prefix string) (string, error)
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MkdirAll(path string, perm os.FileMode) error
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Create(name string) (io.WriteCloser, error)
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OpenFile(name string, flag int, perm os.FileMode) (io.WriteCloser, error)
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RemoveAll(path string) error
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ReadDir(dirname string) ([]os.FileInfo, error)
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ReadFile(filename string) ([]byte, error)
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DirExists(path string) (bool, error)
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TempFile(dir, prefix string) (NameWriteCloser, error)
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Stat(path string) (os.FileInfo, error)
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Glob(path string) ([]string, error)
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}
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type NameWriteCloser interface {
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io.WriteCloser
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Name() string
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}
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func NewFileSystem() Interface {
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return &osFileSystem{}
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}
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type osFileSystem struct{}
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func (fs *osFileSystem) Glob(path string) ([]string, error) {
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return filepath.Glob(path)
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}
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func (fs *osFileSystem) TempDir(dir, prefix string) (string, error) {
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return os.MkdirTemp(dir, prefix)
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}
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func (fs *osFileSystem) MkdirAll(path string, perm os.FileMode) error {
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return os.MkdirAll(path, perm)
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}
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func (fs *osFileSystem) Create(name string) (io.WriteCloser, error) {
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return os.Create(name)
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}
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func (fs *osFileSystem) OpenFile(name string, flag int, perm os.FileMode) (io.WriteCloser, error) {
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return os.OpenFile(name, flag, perm)
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}
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func (fs *osFileSystem) RemoveAll(path string) error {
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return os.RemoveAll(path)
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}
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func (fs *osFileSystem) ReadDir(dirname string) ([]os.FileInfo, error) {
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var fileInfos []os.FileInfo
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dirInfos, ise := os.ReadDir(dirname)
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if ise != nil {
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return fileInfos, ise
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}
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for _, dirInfo := range dirInfos {
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fileInfo, ise := dirInfo.Info()
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if ise == nil {
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fileInfos = append(fileInfos, fileInfo)
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}
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}
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return fileInfos, nil
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}
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func (fs *osFileSystem) ReadFile(filename string) ([]byte, error) {
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return os.ReadFile(filename)
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}
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func (fs *osFileSystem) DirExists(path string) (bool, error) {
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_, err := os.Stat(path)
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if err == nil {
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return true, nil
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}
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if os.IsNotExist(err) {
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return false, nil
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}
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return false, err
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}
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func (fs *osFileSystem) TempFile(dir, prefix string) (NameWriteCloser, error) {
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return os.CreateTemp(dir, prefix)
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}
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func (fs *osFileSystem) Stat(path string) (os.FileInfo, error) {
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return os.Stat(path)
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}
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