func getInput(o *mhopts.Options) (mh.Multihash, error) {
args := flag.Args()
if len(args) < 1 {
return nil, fmt.Errorf("multihash is a required argument")
}
raw := args[0]
h, err := mhopts.Decode(o.Encoding, raw)
if err != nil {
return nil, fmt.Errorf("fail to decode multihash '%s': %s", raw, err)
}
return h, nil
}
func parseFlags(o *mhopts.Options) error {
flag.Parse()
if err := o.ParseError(); err != nil {
return err
}
if checkRaw != "" {
var err error
checkMh, err = mhopts.Decode(o.Encoding, checkRaw)
if err != nil {
return fmt.Errorf("fail to decode check '%s': %s", checkRaw, err)
}
}
return nil
}