forked from mirror/afero
81 lines
1.6 KiB
Go
81 lines
1.6 KiB
Go
package afero
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import (
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"os"
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"syscall"
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"time"
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)
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type ReadOnlyFilter struct {
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source Fs
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}
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func NewReadonlyFilter() FilterFs {
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return &ReadOnlyFilter{}
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}
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func (r *ReadOnlyFilter) SetSource(fs Fs) {
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r.source = fs
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}
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// prepend a filter in the filter chain
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func (r *ReadOnlyFilter) AddFilter(fs FilterFs) {
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fs.SetSource(r.source)
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r.source = fs
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}
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func (r *ReadOnlyFilter) ReadDir(name string) ([]os.FileInfo, error) {
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return ReadDir(r.source, name)
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}
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func (r *ReadOnlyFilter) Chtimes(n string, a, m time.Time) error {
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return syscall.EPERM
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}
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func (r *ReadOnlyFilter) Chmod(n string, m os.FileMode) error {
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return syscall.EPERM
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}
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func (r *ReadOnlyFilter) Name() string {
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return "ReadOnlyFilter"
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}
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func (r *ReadOnlyFilter) Stat(name string) (os.FileInfo, error) {
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return r.source.Stat(name)
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}
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func (r *ReadOnlyFilter) Rename(o, n string) error {
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return syscall.EPERM
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}
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func (r *ReadOnlyFilter) RemoveAll(p string) error {
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return syscall.EPERM
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}
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func (r *ReadOnlyFilter) Remove(n string) error {
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return syscall.EPERM
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}
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func (r *ReadOnlyFilter) OpenFile(name string, flag int, perm os.FileMode) (File, error) {
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if flag&(os.O_WRONLY|syscall.O_RDWR|os.O_APPEND|os.O_CREATE|os.O_TRUNC) != 0 {
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return nil, syscall.EPERM
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}
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return r.source.OpenFile(name, flag, perm)
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}
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func (r *ReadOnlyFilter) Open(n string) (File, error) {
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return r.source.Open(n)
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}
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func (r *ReadOnlyFilter) Mkdir(n string, p os.FileMode) error {
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return syscall.EPERM
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}
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func (r *ReadOnlyFilter) MkdirAll(n string, p os.FileMode) error {
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return syscall.EPERM
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}
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func (r *ReadOnlyFilter) Create(n string) (File, error) {
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return nil, syscall.EPERM
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}
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