mirror of
https://github.com/octoleo/syncthing.git
synced 2024-12-23 11:28:59 +00:00
79 lines
2.1 KiB
Go
79 lines
2.1 KiB
Go
// Copyright (C) 2016 The Syncthing Authors.
|
|
//
|
|
// This Source Code Form is subject to the terms of the Mozilla Public
|
|
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
|
|
// You can obtain one at https://mozilla.org/MPL/2.0/.
|
|
|
|
// +build !windows
|
|
|
|
package fs
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
)
|
|
|
|
func (BasicFilesystem) SymlinksSupported() bool {
|
|
return true
|
|
}
|
|
|
|
func (f *BasicFilesystem) CreateSymlink(target, name string) error {
|
|
name, err := f.rooted(name)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return os.Symlink(target, name)
|
|
}
|
|
|
|
func (f *BasicFilesystem) ReadSymlink(name string) (string, error) {
|
|
name, err := f.rooted(name)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
return os.Readlink(name)
|
|
}
|
|
|
|
func (f *BasicFilesystem) mkdirAll(path string, perm os.FileMode) error {
|
|
return os.MkdirAll(path, perm)
|
|
}
|
|
|
|
// Unhide is a noop on unix, as unhiding files requires renaming them.
|
|
// We still check that the relative path does not try to escape the root
|
|
func (f *BasicFilesystem) Unhide(name string) error {
|
|
_, err := f.rooted(name)
|
|
return err
|
|
}
|
|
|
|
// Hide is a noop on unix, as hiding files requires renaming them.
|
|
// We still check that the relative path does not try to escape the root
|
|
func (f *BasicFilesystem) Hide(name string) error {
|
|
_, err := f.rooted(name)
|
|
return err
|
|
}
|
|
|
|
func (f *BasicFilesystem) Roots() ([]string, error) {
|
|
return []string{"/"}, nil
|
|
}
|
|
|
|
// unrootedChecked returns the path relative to the folder root (same as
|
|
// unrooted). It panics if the given path is not a subpath and handles the
|
|
// special case when the given path is the folder root without a trailing
|
|
// pathseparator.
|
|
func (f *BasicFilesystem) unrootedChecked(absPath, root string) string {
|
|
if absPath+string(PathSeparator) == root {
|
|
return "."
|
|
}
|
|
if !strings.HasPrefix(absPath, root) {
|
|
panic(fmt.Sprintf("bug: Notify backend is processing a change outside of the filesystem root: f.root==%v, root==%v, path==%v", f.root, root, absPath))
|
|
}
|
|
return rel(absPath, root)
|
|
}
|
|
|
|
func rel(path, prefix string) string {
|
|
return strings.TrimPrefix(strings.TrimPrefix(path, prefix), string(PathSeparator))
|
|
}
|
|
|
|
var evalSymlinks = filepath.EvalSymlinks
|