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// Copyright 2016 the Go-FUSE Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// A Go mirror of libfuse's hello.c
package main
import (
"flag"
"log"
"github.com/hanwen/go-fuse/fuse"
"github.com/hanwen/go-fuse/fuse/nodefs"
"github.com/hanwen/go-fuse/fuse/pathfs"
)
type HelloFs struct {
pathfs.FileSystem
}
func (me *HelloFs) GetAttr(name string, context *fuse.Context) (*fuse.Attr, fuse.Status) {
switch name {
case "file.txt":
return &fuse.Attr{
Mode: fuse.S_IFREG | 0644, Size: uint64(len(name)),
}, fuse.OK
case "":
return &fuse.Attr{
Mode: fuse.S_IFDIR | 0755,
}, fuse.OK
}
return nil, fuse.ENOENT
}
func (me *HelloFs) OpenDir(name string, context *fuse.Context) (c []fuse.DirEntry, code fuse.Status) {
if name == "" {
c = []fuse.DirEntry{{Name: "file.txt", Mode: fuse.S_IFREG}}
return c, fuse.OK
}
return nil, fuse.ENOENT
}
func (me *HelloFs) Open(name string, flags uint32, context *fuse.Context) (file nodefs.File, code fuse.Status) {
if name != "file.txt" {
return nil, fuse.ENOENT
}
if flags&fuse.O_ANYWRITE != 0 {
return nil, fuse.EPERM
}
return nodefs.NewDataFile([]byte(name)), fuse.OK
}
func main() {
flag.Parse()
if len(flag.Args()) < 1 {
log.Fatal("Usage:\n hello MOUNTPOINT")
}
nfs := pathfs.NewPathNodeFs(&HelloFs{FileSystem: pathfs.NewDefaultFileSystem()}, nil)
server, _, err := nodefs.MountRoot(flag.Arg(0), nfs.Root(), nil)
if err != nil {
log.Fatalf("Mount fail: %v\n", err)
}
server.Serve()
}
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