mirror of https://github.com/perkeep/perkeep.git
96 lines
1.8 KiB
Go
96 lines
1.8 KiB
Go
// Hellofs implements a simple "hello world" file system.
|
|
package main
|
|
|
|
import (
|
|
"flag"
|
|
"fmt"
|
|
"log"
|
|
"os"
|
|
|
|
"camlistore.org/third_party/bazil.org/fuse"
|
|
"camlistore.org/third_party/bazil.org/fuse/fs"
|
|
_ "camlistore.org/third_party/bazil.org/fuse/fs/fstestutil"
|
|
)
|
|
|
|
var Usage = func() {
|
|
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, fuse.Error) {
|
|
return Dir{}, nil
|
|
}
|
|
|
|
// Dir implements both Node and Handle for the root directory.
|
|
type Dir struct{}
|
|
|
|
func (Dir) Attr() fuse.Attr {
|
|
return fuse.Attr{Inode: 1, Mode: os.ModeDir | 0555}
|
|
}
|
|
|
|
func (Dir) Lookup(name string, intr fs.Intr) (fs.Node, fuse.Error) {
|
|
if name == "hello" {
|
|
return File{}, nil
|
|
}
|
|
return nil, fuse.ENOENT
|
|
}
|
|
|
|
var dirDirs = []fuse.Dirent{
|
|
{Inode: 2, Name: "hello", Type: fuse.DT_File},
|
|
}
|
|
|
|
func (Dir) ReadDir(intr fs.Intr) ([]fuse.Dirent, fuse.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() fuse.Attr {
|
|
return fuse.Attr{Inode: 2, Mode: 0444, Size: uint64(len(greeting))}
|
|
}
|
|
|
|
func (File) ReadAll(intr fs.Intr) ([]byte, fuse.Error) {
|
|
return []byte(greeting), nil
|
|
}
|