1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
// Hellofs implements a simple "hello world" file system.
package main
import (
"context"
"flag"
"fmt"
"log"
"os"
"syscall"
"github.com/anacrolix/fuse"
"github.com/anacrolix/fuse/fs"
_ "github.com/anacrolix/fuse/fs/fstestutil"
)
func usage() {
fmt.Fprintf(os.Stderr, "Usage of %s:\n", os.Args[0])
fmt.Fprintf(os.Stderr, " %s MOUNTPOINT\n", os.Args[0])
flag.PrintDefaults()
}
func main() {
flag.Usage = usage
flag.Parse()
if flag.NArg() != 1 {
usage()
os.Exit(2)
}
mountpoint := flag.Arg(0)
c, err := fuse.Mount(
mountpoint,
fuse.FSName("helloworld"),
fuse.Subtype("hellofs"),
fuse.LocalVolume(),
fuse.VolumeName("Hello world!"),
)
if err != nil {
log.Fatal(err)
}
defer c.Close()
err = fs.Serve(c, FS{})
if err != nil {
log.Fatal(err)
}
// check if the mount process has an error to report
<-c.Ready
if err := c.MountError; err != nil {
log.Fatal(err)
}
}
// FS implements the hello world file system.
type FS struct{}
func (FS) Root() (fs.Node, error) {
return Dir{}, nil
}
// Dir implements both Node and Handle for the root directory.
type Dir struct{}
func (Dir) Attr(ctx context.Context, a *fuse.Attr) error {
a.Inode = 1
a.Mode = os.ModeDir | 0o555
return nil
}
func (Dir) Lookup(ctx context.Context, name string) (fs.Node, error) {
if name == "hello" {
return File{}, nil
}
return nil, syscall.ENOENT
}
var dirDirs = []fuse.Dirent{
{Inode: 2, Name: "hello", Type: fuse.DT_File},
}
func (Dir) ReadDirAll(ctx context.Context) ([]fuse.Dirent, error) {
return dirDirs, nil
}
// File implements both Node and Handle for the hello file.
type File struct{}
const greeting = "hello, world\n"
func (File) Attr(ctx context.Context, a *fuse.Attr) error {
a.Inode = 2
a.Mode = 0o444
a.Size = uint64(len(greeting))
return nil
}
func (File) ReadAll(ctx context.Context) ([]byte, error) {
return []byte(greeting), nil
}
|
