9
var _ Lstater = (*ReadOnlyFs)(nil)
11
type ReadOnlyFs struct {
15
func NewReadOnlyFs(source Fs) Fs {
16
return &ReadOnlyFs{source: source}
19
func (r *ReadOnlyFs) ReadDir(name string) ([]os.FileInfo, error) {
20
return ReadDir(r.source, name)
23
func (r *ReadOnlyFs) Chtimes(n string, a, m time.Time) error {
27
func (r *ReadOnlyFs) Chmod(n string, m os.FileMode) error {
31
func (r *ReadOnlyFs) Chown(n string, uid, gid int) error {
35
func (r *ReadOnlyFs) Name() string {
36
return "ReadOnlyFilter"
39
func (r *ReadOnlyFs) Stat(name string) (os.FileInfo, error) {
40
return r.source.Stat(name)
43
func (r *ReadOnlyFs) LstatIfPossible(name string) (os.FileInfo, bool, error) {
44
if lsf, ok := r.source.(Lstater); ok {
45
return lsf.LstatIfPossible(name)
47
fi, err := r.Stat(name)
51
func (r *ReadOnlyFs) SymlinkIfPossible(oldname, newname string) error {
52
return &os.LinkError{Op: "symlink", Old: oldname, New: newname, Err: ErrNoSymlink}
55
func (r *ReadOnlyFs) ReadlinkIfPossible(name string) (string, error) {
56
if srdr, ok := r.source.(LinkReader); ok {
57
return srdr.ReadlinkIfPossible(name)
60
return "", &os.PathError{Op: "readlink", Path: name, Err: ErrNoReadlink}
63
func (r *ReadOnlyFs) Rename(o, n string) error {
67
func (r *ReadOnlyFs) RemoveAll(p string) error {
71
func (r *ReadOnlyFs) Remove(n string) error {
75
func (r *ReadOnlyFs) OpenFile(name string, flag int, perm os.FileMode) (File, error) {
76
if flag&(os.O_WRONLY|syscall.O_RDWR|os.O_APPEND|os.O_CREATE|os.O_TRUNC) != 0 {
77
return nil, syscall.EPERM
79
return r.source.OpenFile(name, flag, perm)
82
func (r *ReadOnlyFs) Open(n string) (File, error) {
83
return r.source.Open(n)
86
func (r *ReadOnlyFs) Mkdir(n string, p os.FileMode) error {
90
func (r *ReadOnlyFs) MkdirAll(n string, p os.FileMode) error {
94
func (r *ReadOnlyFs) Create(n string) (File, error) {
95
return nil, syscall.EPERM