hugo

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noop_fs.go (2026B)

    1 // Copyright 2018 The Hugo Authors. All rights reserved.
    2 //
    3 // Licensed under the Apache License, Version 2.0 (the "License");
    4 // you may not use this file except in compliance with the License.
    5 // You may obtain a copy of the License at
    6 // http://www.apache.org/licenses/LICENSE-2.0
    7 //
    8 // Unless required by applicable law or agreed to in writing, software
    9 // distributed under the License is distributed on an "AS IS" BASIS,
   10 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   11 // See the License for the specific language governing permissions and
   12 // limitations under the License.
   13 
   14 package hugofs
   15 
   16 import (
   17 	"errors"
   18 	"os"
   19 	"time"
   20 
   21 	"github.com/spf13/afero"
   22 )
   23 
   24 var (
   25 	errNoOp          = errors.New("this is a filesystem that does nothing and this operation is not supported")
   26 	_       afero.Fs = (*noOpFs)(nil)
   27 
   28 	// NoOpFs provides a no-op filesystem that implements the afero.Fs
   29 	// interface.
   30 	NoOpFs = &noOpFs{}
   31 )
   32 
   33 type noOpFs struct {
   34 }
   35 
   36 func (fs noOpFs) Create(name string) (afero.File, error) {
   37 	return nil, errNoOp
   38 }
   39 
   40 func (fs noOpFs) Mkdir(name string, perm os.FileMode) error {
   41 	return nil
   42 }
   43 
   44 func (fs noOpFs) MkdirAll(path string, perm os.FileMode) error {
   45 	return nil
   46 }
   47 
   48 func (fs noOpFs) Open(name string) (afero.File, error) {
   49 	return nil, os.ErrNotExist
   50 }
   51 
   52 func (fs noOpFs) OpenFile(name string, flag int, perm os.FileMode) (afero.File, error) {
   53 	return nil, os.ErrNotExist
   54 }
   55 
   56 func (fs noOpFs) Remove(name string) error {
   57 	return nil
   58 }
   59 
   60 func (fs noOpFs) RemoveAll(path string) error {
   61 	return nil
   62 }
   63 
   64 func (fs noOpFs) Rename(oldname string, newname string) error {
   65 	return errNoOp
   66 }
   67 
   68 func (fs noOpFs) Stat(name string) (os.FileInfo, error) {
   69 	return nil, os.ErrNotExist
   70 }
   71 
   72 func (fs noOpFs) Name() string {
   73 	return "noOpFs"
   74 }
   75 
   76 func (fs noOpFs) Chmod(name string, mode os.FileMode) error {
   77 	return errNoOp
   78 }
   79 
   80 func (fs noOpFs) Chtimes(name string, atime time.Time, mtime time.Time) error {
   81 	return errNoOp
   82 }
   83 
   84 func (fs *noOpFs) Chown(name string, uid int, gid int) error {
   85 	return errNoOp
   86 }