ref: 4b560cc1197ad07252fbb9a080c06f2f361c2b0e
dir: /hugofs/noop_fs.go/
// Copyright 2018 The Hugo Authors. All rights reserved.
//
// 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 hugofs
import (
"errors"
"os"
"time"
"github.com/spf13/afero"
)
var (
errNoOp = errors.New("this is a filesystem that does nothing and this operation is not supported")
_ afero.Fs = (*noOpFs)(nil)
// NoOpFs provides a no-op filesystem that implements the afero.Fs
// interface.
NoOpFs = &noOpFs{}
)
type noOpFs struct {
}
func (fs noOpFs) Create(name string) (afero.File, error) {
return nil, errNoOp
}
func (fs noOpFs) Mkdir(name string, perm os.FileMode) error {
return errNoOp
}
func (fs noOpFs) MkdirAll(path string, perm os.FileMode) error {
return errNoOp
}
func (fs noOpFs) Open(name string) (afero.File, error) {
return nil, os.ErrNotExist
}
func (fs noOpFs) OpenFile(name string, flag int, perm os.FileMode) (afero.File, error) {
return nil, os.ErrNotExist
}
func (fs noOpFs) Remove(name string) error {
return errNoOp
}
func (fs noOpFs) RemoveAll(path string) error {
return errNoOp
}
func (fs noOpFs) Rename(oldname string, newname string) error {
return errNoOp
}
func (fs noOpFs) Stat(name string) (os.FileInfo, error) {
return nil, os.ErrNotExist
}
func (fs noOpFs) Name() string {
return "noOpFs"
}
func (fs noOpFs) Chmod(name string, mode os.FileMode) error {
return errNoOp
}
func (fs noOpFs) Chtimes(name string, atime time.Time, mtime time.Time) error {
return errNoOp
}