// Dial the server for this dir (if not already dialed) and return it,
// the dir addr is updated.
func DirFs(d zx.Dir) (zx.Fs, error) {
switch p := d.Proto(); p {
case "lfs":
addr := d["addr"]
toks := strings.Split(d["addr"], "!") // lfs!root!/path
if len(toks) != 3 {
return nil, fmt.Errorf("ns: no zux tree for addr %q", addr)
}
fullpath := fpath.Join(toks[1], toks[2])
fs, root, rel := Lfs(fullpath)
if fs == nil {
return nil, fmt.Errorf("ns: no zux tree for addr %q", addr)
}
d["addr"] = "lfs!" + root + "!" + rel
return fs, nil
case "zx":
addr := d.SAddr()
if len(addr) < 3 {
panic("DirFs bug")
}
addr = addr[3:] // remove zx!
// rzx does cache dials, no need to do it again here.
return rzx.Dial(addr, auth.TLSclient)
default:
return nil, fmt.Errorf("ns: no tree for addr %q", d["addr"])
}
}