forked from TrueCloudLab/restic
72 lines
911 B
Go
72 lines
911 B
Go
package backend
|
|
|
|
import (
|
|
"errors"
|
|
"io"
|
|
)
|
|
|
|
type Type string
|
|
|
|
const (
|
|
Data Type = "data"
|
|
Key = "key"
|
|
Lock = "lock"
|
|
Snapshot = "snapshot"
|
|
Tree = "tree"
|
|
)
|
|
|
|
const (
|
|
BackendVersion = 1
|
|
)
|
|
|
|
var (
|
|
ErrAlreadyPresent = errors.New("blob is already present in backend")
|
|
)
|
|
|
|
type Blob interface {
|
|
io.WriteCloser
|
|
ID() (ID, error)
|
|
Size() uint
|
|
}
|
|
|
|
type Lister interface {
|
|
List(Type) (IDs, error)
|
|
}
|
|
|
|
type Getter interface {
|
|
Get(Type, ID) ([]byte, error)
|
|
GetReader(Type, ID) (io.ReadCloser, error)
|
|
}
|
|
|
|
type Creater interface {
|
|
Create(Type) (Blob, error)
|
|
}
|
|
|
|
type Tester interface {
|
|
Test(Type, ID) (bool, error)
|
|
}
|
|
|
|
type Remover interface {
|
|
Remove(Type, ID) error
|
|
}
|
|
|
|
type Closer interface {
|
|
Close() error
|
|
}
|
|
|
|
type Deleter interface {
|
|
Delete() error
|
|
}
|
|
|
|
type Locationer interface {
|
|
Location() string
|
|
}
|
|
|
|
type Backend interface {
|
|
Lister
|
|
Getter
|
|
Creater
|
|
Tester
|
|
Remover
|
|
Closer
|
|
}
|