forked from celestiaorg/dagstore
/
file.go
56 lines (47 loc) · 895 Bytes
/
file.go
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package mount
import (
"context"
"fmt"
"net/url"
"os"
)
type FileMount struct {
Path string
}
var _ Mount = (*FileMount)(nil)
func (f *FileMount) Fetch(_ context.Context) (Reader, error) {
return os.Open(f.Path)
}
func (f *FileMount) Info() Info {
return Info{
Kind: KindLocal,
AccessRandom: true,
AccessSeek: true,
AccessSequential: true,
}
}
func (f *FileMount) Stat(_ context.Context) (Stat, error) {
stat, err := os.Stat(f.Path)
if err != nil && os.IsNotExist(err) {
return Stat{}, err
}
return Stat{
Exists: !os.IsNotExist(err),
Size: stat.Size(),
}, err
}
func (f *FileMount) Serialize() *url.URL {
return &url.URL{
Path: f.Path,
}
}
func (f *FileMount) Deserialize(u *url.URL) error {
if u.Path == "" {
return fmt.Errorf("invalid path")
}
f.Path = u.Path
return nil
}
func (f *FileMount) Close() error {
return nil
}