85 lines
2.2 KiB
Go
85 lines
2.2 KiB
Go
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package ricefs
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import (
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"errors"
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"os"
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"time"
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rice "github.com/GeertJohan/go.rice"
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"github.com/spf13/afero"
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)
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var _ afero.Fs = &RiceFs{}
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func NewFs(b *rice.Box) *RiceFs {
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return &RiceFs{b}
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}
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type RiceFs struct {
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Box *rice.Box
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}
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// ErrReadOnly is returned when a write method is accessed.
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var ErrReadOnly = errors.New("file system is read-only")
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// ErrUseOpen is returned when trying to use OpenFile, use Open to open the (read-only) file.
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var ErrUseOpen = errors.New("use Open method instead, non-read-only perms are not supported")
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// Create is not supported for a RiceFs.
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func (f *RiceFs) Create(name string) (afero.File, error) {
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return nil, ErrReadOnly
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}
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// Mkdir is not supported for a RiceFs.
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func (f *RiceFs) Mkdir(name string, perm os.FileMode) error {
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return ErrReadOnly
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}
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// MkdirAll is not supported for a RiceFs.
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func (f *RiceFs) MkdirAll(path string, perm os.FileMode) error {
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return ErrReadOnly
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}
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// Open opens a file, returning it or an error, if any happens.
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func (f *RiceFs) Open(name string) (afero.File, error) {
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fBox, err := f.Box.Open(name)
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if nil != err {
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return nil, err
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}
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return &file{f: fBox}, nil
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}
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// OpenFile is not supported for a RiceFs.
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func (f *RiceFs) OpenFile(name string, flag int, perm os.FileMode) (afero.File, error) {
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return nil, ErrUseOpen
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}
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// Remove is not supported for a RiceFs.
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func (f *RiceFs) Remove(name string) error { return ErrReadOnly }
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// RemoveAll is not supported for a RiceFs.
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func (f *RiceFs) RemoveAll(path string) error { return ErrReadOnly }
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// Rename is not supported for a RiceFs.
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func (f *RiceFs) Rename(oldname, newname string) error { return ErrReadOnly }
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// Stat returns a FileInfo describing the named file, or an error, if any happens.
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func (f *RiceFs) Stat(name string) (os.FileInfo, error) {
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fBox, err := f.Box.Open(name)
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if nil != err {
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return nil, err
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}
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return fBox.Stat()
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}
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// Name returns the name of the file system
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func (f *RiceFs) Name() string {
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return "Rice FS"
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}
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// Chmod is not supported for a RiceFs.
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func (f *RiceFs) Chmod(name string, mode os.FileMode) error { return ErrReadOnly }
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// Chtimes is not supported for a RiceFs.
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func (f *RiceFs) Chtimes(name string, atime time.Time, mtime time.Time) error { return ErrReadOnly }
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