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package afero
import (
"os"
"syscall"
"time"
)
type ReadOnlyFs struct {
source Fs
}
func NewReadOnlyFs(source Fs) Fs {
return &ReadOnlyFs{source: source}
}
func (r *ReadOnlyFs) ReadDir(name string) ([]os.FileInfo, error) {
return ReadDir(r.source, name)
}
func (r *ReadOnlyFs) Chtimes(n string, a, m time.Time) error {
return syscall.EPERM
}
func (r *ReadOnlyFs) Chmod(n string, m os.FileMode) error {
return syscall.EPERM
}
func (r *ReadOnlyFs) Name() string {
return "ReadOnlyFilter"
}
func (r *ReadOnlyFs) Stat(name string) (os.FileInfo, error) {
return r.source.Stat(name)
}
func (r *ReadOnlyFs) Rename(o, n string) error {
return syscall.EPERM
}
func (r *ReadOnlyFs) RemoveAll(p string) error {
return syscall.EPERM
}
func (r *ReadOnlyFs) Remove(n string) error {
return syscall.EPERM
}
func (r *ReadOnlyFs) OpenFile(name string, flag int, perm os.FileMode) (File, error) {
if flag&(os.O_WRONLY|syscall.O_RDWR|os.O_APPEND|os.O_CREATE|os.O_TRUNC) != 0 {
return nil, syscall.EPERM
}
return r.source.OpenFile(name, flag, perm)
}
func (r *ReadOnlyFs) Open(n string) (File, error) {
return r.source.Open(n)
}
func (r *ReadOnlyFs) Mkdir(n string, p os.FileMode) error {
return syscall.EPERM
}
func (r *ReadOnlyFs) MkdirAll(n string, p os.FileMode) error {
return syscall.EPERM
}
func (r *ReadOnlyFs) Create(n string) (File, error) {
return nil, syscall.EPERM
}
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