vfs/mount.go

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// Hellofs implements a simple "hello world" file system.
package main
import (
"bazil.org/fuse"
"bazil.org/fuse/fs"
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// "flag"
// "fmt"
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"golang.org/x/net/context"
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"os"
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)
// 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(a *fuse.Attr) {
a.Inode = 1
a.Mode = os.ModeDir | 0777
}
func (Dir) Lookup(ctx context.Context, name string) (fs.Node, error) {
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if name == "hello" {
return File{}, nil
}
return nil, fuse.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(a *fuse.Attr) {
a.Inode = 2
a.Mode = 0777
a.Size = uint64(len(greeting))
}
func (File) ReadAll(ctx context.Context) ([]byte, error) {
return []byte(greeting), nil
}