torrent/cmd/torrent-magnet/main.go

package main

import (
	"flag"
	"fmt"
	"os"

	"github.com/anacrolix/torrent"
	"github.com/anacrolix/torrent/metainfo"
)

func main() {
	flag.Parse()
	if flag.NArg() != 0 {
		fmt.Fprintf(os.Stderr, "%s\n", "torrent-magnet: unexpected positional arguments")
		os.Exit(2)
	}
	mi, err := metainfo.Load(os.Stdin)
	if err != nil {
		fmt.Fprintf(os.Stderr, "error reading metainfo from stdin: %s", err)
		os.Exit(1)
	}

	magnet := torrent.Magnetize(mi)
	fmt.Fprintf(os.Stdout, "%s\n", magnet.String())
}