cmd/torrent-magnet/main.go

   1 package main
   2
   3 import (
   4         "flag"
   5         "fmt"
   6         "os"
   7
   8         "github.com/anacrolix/torrent"
   9         "github.com/anacrolix/torrent/metainfo"
  10 )
  11
  12 func main() {
  13         flag.Parse()
  14         if flag.NArg() != 0 {
  15                 fmt.Fprintf(os.Stderr, "%s\n", "torrent-magnet: unexpected positional arguments")
  16                 os.Exit(2)
  17         }
  18         mi, err := metainfo.Load(os.Stdin)
  19         if err != nil {
  20                 fmt.Fprintf(os.Stderr, "error reading metainfo from stdin: %s", err)
  21                 os.Exit(1)
  22         }
  23         ts := torrent.TorrentSpecFromMetaInfo(mi)
  24         m := torrent.Magnet{
  25                 InfoHash: ts.InfoHash,
  26                 Trackers: func() (ret []string) {
  27                         for _, tier := range ts.Trackers {
  28                                 for _, tr := range tier {
  29                                         ret = append(ret, tr)
  30                                 }
  31                         }
  32                         return
  33                 }(),
  34                 DisplayName: ts.DisplayName,
  35         }
  36         fmt.Fprintf(os.Stdout, "%s\n", m.String())
  37 }