mirror of
https://github.com/cwinfo/matterbridge.git
synced 2024-11-23 07:01:41 +00:00
56 lines
2.0 KiB
Go
56 lines
2.0 KiB
Go
// Copyright © 2018 Steve Francia <spf@spf13.com>.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package afero
|
|
|
|
import (
|
|
"errors"
|
|
)
|
|
|
|
// Symlinker is an optional interface in Afero. It is only implemented by the
|
|
// filesystems saying so.
|
|
// It indicates support for 3 symlink related interfaces that implement the
|
|
// behaviors of the os methods:
|
|
// - Lstat
|
|
// - Symlink, and
|
|
// - Readlink
|
|
type Symlinker interface {
|
|
Lstater
|
|
Linker
|
|
LinkReader
|
|
}
|
|
|
|
// Linker is an optional interface in Afero. It is only implemented by the
|
|
// filesystems saying so.
|
|
// It will call Symlink if the filesystem itself is, or it delegates to, the os filesystem,
|
|
// or the filesystem otherwise supports Symlink's.
|
|
type Linker interface {
|
|
SymlinkIfPossible(oldname, newname string) error
|
|
}
|
|
|
|
// ErrNoSymlink is the error that will be wrapped in an os.LinkError if a file system
|
|
// does not support Symlink's either directly or through its delegated filesystem.
|
|
// As expressed by support for the Linker interface.
|
|
var ErrNoSymlink = errors.New("symlink not supported")
|
|
|
|
// LinkReader is an optional interface in Afero. It is only implemented by the
|
|
// filesystems saying so.
|
|
type LinkReader interface {
|
|
ReadlinkIfPossible(name string) (string, error)
|
|
}
|
|
|
|
// ErrNoReadlink is the error that will be wrapped in an os.Path if a file system
|
|
// does not support the readlink operation either directly or through its delegated filesystem.
|
|
// As expressed by support for the LinkReader interface.
|
|
var ErrNoReadlink = errors.New("readlink not supported")
|