github.com/hanwen/go-fuse@v1.0.0/fuse/pathfs/prefixfs.go (about)

     1  // Copyright 2016 the Go-FUSE Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package pathfs
     6  
     7  import (
     8  	"fmt"
     9  	"path/filepath"
    10  	"time"
    11  
    12  	"github.com/hanwen/go-fuse/fuse"
    13  	"github.com/hanwen/go-fuse/fuse/nodefs"
    14  )
    15  
    16  // PrefixFileSystem adds a path prefix to incoming calls.
    17  type prefixFileSystem struct {
    18  	FileSystem FileSystem
    19  	Prefix     string
    20  }
    21  
    22  func NewPrefixFileSystem(fs FileSystem, prefix string) FileSystem {
    23  	return &prefixFileSystem{fs, prefix}
    24  }
    25  
    26  func (fs *prefixFileSystem) SetDebug(debug bool) {
    27  	fs.FileSystem.SetDebug(debug)
    28  }
    29  
    30  func (fs *prefixFileSystem) prefixed(n string) string {
    31  	return filepath.Join(fs.Prefix, n)
    32  }
    33  
    34  func (fs *prefixFileSystem) GetAttr(name string, context *fuse.Context) (*fuse.Attr, fuse.Status) {
    35  	return fs.FileSystem.GetAttr(fs.prefixed(name), context)
    36  }
    37  
    38  func (fs *prefixFileSystem) Readlink(name string, context *fuse.Context) (string, fuse.Status) {
    39  	return fs.FileSystem.Readlink(fs.prefixed(name), context)
    40  }
    41  
    42  func (fs *prefixFileSystem) Mknod(name string, mode uint32, dev uint32, context *fuse.Context) fuse.Status {
    43  	return fs.FileSystem.Mknod(fs.prefixed(name), mode, dev, context)
    44  }
    45  
    46  func (fs *prefixFileSystem) Mkdir(name string, mode uint32, context *fuse.Context) fuse.Status {
    47  	return fs.FileSystem.Mkdir(fs.prefixed(name), mode, context)
    48  }
    49  
    50  func (fs *prefixFileSystem) Unlink(name string, context *fuse.Context) (code fuse.Status) {
    51  	return fs.FileSystem.Unlink(fs.prefixed(name), context)
    52  }
    53  
    54  func (fs *prefixFileSystem) Rmdir(name string, context *fuse.Context) (code fuse.Status) {
    55  	return fs.FileSystem.Rmdir(fs.prefixed(name), context)
    56  }
    57  
    58  func (fs *prefixFileSystem) Symlink(value string, linkName string, context *fuse.Context) (code fuse.Status) {
    59  	return fs.FileSystem.Symlink(value, fs.prefixed(linkName), context)
    60  }
    61  
    62  func (fs *prefixFileSystem) Rename(oldName string, newName string, context *fuse.Context) (code fuse.Status) {
    63  	return fs.FileSystem.Rename(fs.prefixed(oldName), fs.prefixed(newName), context)
    64  }
    65  
    66  func (fs *prefixFileSystem) Link(oldName string, newName string, context *fuse.Context) (code fuse.Status) {
    67  	return fs.FileSystem.Link(fs.prefixed(oldName), fs.prefixed(newName), context)
    68  }
    69  
    70  func (fs *prefixFileSystem) Chmod(name string, mode uint32, context *fuse.Context) (code fuse.Status) {
    71  	return fs.FileSystem.Chmod(fs.prefixed(name), mode, context)
    72  }
    73  
    74  func (fs *prefixFileSystem) Chown(name string, uid uint32, gid uint32, context *fuse.Context) (code fuse.Status) {
    75  	return fs.FileSystem.Chown(fs.prefixed(name), uid, gid, context)
    76  }
    77  
    78  func (fs *prefixFileSystem) Truncate(name string, offset uint64, context *fuse.Context) (code fuse.Status) {
    79  	return fs.FileSystem.Truncate(fs.prefixed(name), offset, context)
    80  }
    81  
    82  func (fs *prefixFileSystem) Open(name string, flags uint32, context *fuse.Context) (file nodefs.File, code fuse.Status) {
    83  	return fs.FileSystem.Open(fs.prefixed(name), flags, context)
    84  }
    85  
    86  func (fs *prefixFileSystem) OpenDir(name string, context *fuse.Context) (stream []fuse.DirEntry, status fuse.Status) {
    87  	return fs.FileSystem.OpenDir(fs.prefixed(name), context)
    88  }
    89  
    90  func (fs *prefixFileSystem) OnMount(nodeFs *PathNodeFs) {
    91  	fs.FileSystem.OnMount(nodeFs)
    92  }
    93  
    94  func (fs *prefixFileSystem) OnUnmount() {
    95  	fs.FileSystem.OnUnmount()
    96  }
    97  
    98  func (fs *prefixFileSystem) Access(name string, mode uint32, context *fuse.Context) (code fuse.Status) {
    99  	return fs.FileSystem.Access(fs.prefixed(name), mode, context)
   100  }
   101  
   102  func (fs *prefixFileSystem) Create(name string, flags uint32, mode uint32, context *fuse.Context) (file nodefs.File, code fuse.Status) {
   103  	return fs.FileSystem.Create(fs.prefixed(name), flags, mode, context)
   104  }
   105  
   106  func (fs *prefixFileSystem) Utimens(name string, Atime *time.Time, Mtime *time.Time, context *fuse.Context) (code fuse.Status) {
   107  	return fs.FileSystem.Utimens(fs.prefixed(name), Atime, Mtime, context)
   108  }
   109  
   110  func (fs *prefixFileSystem) GetXAttr(name string, attr string, context *fuse.Context) ([]byte, fuse.Status) {
   111  	return fs.FileSystem.GetXAttr(fs.prefixed(name), attr, context)
   112  }
   113  
   114  func (fs *prefixFileSystem) SetXAttr(name string, attr string, data []byte, flags int, context *fuse.Context) fuse.Status {
   115  	return fs.FileSystem.SetXAttr(fs.prefixed(name), attr, data, flags, context)
   116  }
   117  
   118  func (fs *prefixFileSystem) ListXAttr(name string, context *fuse.Context) ([]string, fuse.Status) {
   119  	return fs.FileSystem.ListXAttr(fs.prefixed(name), context)
   120  }
   121  
   122  func (fs *prefixFileSystem) RemoveXAttr(name string, attr string, context *fuse.Context) fuse.Status {
   123  	return fs.FileSystem.RemoveXAttr(fs.prefixed(name), attr, context)
   124  }
   125  
   126  func (fs *prefixFileSystem) String() string {
   127  	return fmt.Sprintf("prefixFileSystem(%s,%s)", fs.FileSystem.String(), fs.Prefix)
   128  }
   129  
   130  func (fs *prefixFileSystem) StatFs(name string) *fuse.StatfsOut {
   131  	return fs.FileSystem.StatFs(fs.prefixed(name))
   132  }