130 lines
3.1 KiB
Go
130 lines
3.1 KiB
Go
// Copyright © 2015 Jerry Jacobs <jerry.jacobs@xor-gate.org>.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package sftpfs
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import (
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"os"
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"time"
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"github.com/pkg/sftp"
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"github.com/spf13/afero"
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)
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// Fs is a afero.Fs implementation that uses functions provided by the sftp package.
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//
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// For details in any method, check the documentation of the sftp package
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// (github.com/pkg/sftp).
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type Fs struct {
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client *sftp.Client
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}
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func New(client *sftp.Client) afero.Fs {
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return &Fs{client: client}
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}
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func (s Fs) Name() string { return "sftpfs" }
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func (s Fs) Create(name string) (afero.File, error) {
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return FileCreate(s.client, name)
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}
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func (s Fs) Mkdir(name string, perm os.FileMode) error {
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err := s.client.Mkdir(name)
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if err != nil {
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return err
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}
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return s.client.Chmod(name, perm)
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}
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func (s Fs) MkdirAll(path string, perm os.FileMode) error {
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// Fast path: if we can tell whether path is a directory or file, stop with success or error.
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dir, err := s.Stat(path)
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if err == nil {
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if dir.IsDir() {
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return nil
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}
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return err
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}
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// Slow path: make sure parent exists and then call Mkdir for path.
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i := len(path)
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for i > 0 && os.IsPathSeparator(path[i-1]) { // Skip trailing path separator.
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i--
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}
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j := i
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for j > 0 && !os.IsPathSeparator(path[j-1]) { // Scan backward over element.
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j--
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}
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if j > 1 {
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// Create parent
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err = s.MkdirAll(path[0:j-1], perm)
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if err != nil {
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return err
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}
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}
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// Parent now exists; invoke Mkdir and use its result.
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err = s.Mkdir(path, perm)
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if err != nil {
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// Handle arguments like "foo/." by
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// double-checking that directory doesn't exist.
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dir, err1 := s.Lstat(path)
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if err1 == nil && dir.IsDir() {
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return nil
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}
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return err
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}
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return nil
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}
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func (s Fs) Open(name string) (afero.File, error) {
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return FileOpen(s.client, name)
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}
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func (s Fs) OpenFile(name string, flag int, perm os.FileMode) (afero.File, error) {
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return nil, nil
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}
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func (s Fs) Remove(name string) error {
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return s.client.Remove(name)
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}
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func (s Fs) RemoveAll(path string) error {
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// TODO have a look at os.RemoveAll
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// https://github.com/golang/go/blob/master/src/os/path.go#L66
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return nil
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}
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func (s Fs) Rename(oldname, newname string) error {
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return s.client.Rename(oldname, newname)
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}
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func (s Fs) Stat(name string) (os.FileInfo, error) {
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return s.client.Stat(name)
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}
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func (s Fs) Lstat(p string) (os.FileInfo, error) {
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return s.client.Lstat(p)
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}
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func (s Fs) Chmod(name string, mode os.FileMode) error {
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return s.client.Chmod(name, mode)
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}
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func (s Fs) Chtimes(name string, atime time.Time, mtime time.Time) error {
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return s.client.Chtimes(name, atime, mtime)
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}
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