Turn off logging noise from anacrolix/torrent

For now, set os.Stdout = nil and log to file instead

Reference: anacrolix/torrent#271

.gitignore

@@ -2,4 +2,6 @@ bin
 
 # I don't know why github.com/anacrolix/torrent is using these for storage
 .torrent.bolt.db
-.torrent.bolt.db.lock
+.torrent.bolt.db.lock
+
+*.log

README.md

@@ -33,4 +33,14 @@ $ bin/kabedon-nyaa
 ```
 
 # Notes
-github.com/anacrolix/torrent uses github.com/anacrolix/go-libutp which is a go wrapper for github.com/bittorrent/libutp and it requires gcc to compile bittorrent's transport protocol library.
+github.com/anacrolix/torrent uses github.com/anacrolix/go-libutp which is a go wrapper for github.com/bittorrent/libutp and it requires gcc to compile bittorrent's transport protocol library.
+
+github.com/anacrolix/torrent client doesn't expose the logger. Unfortunately, it's outputting a lot of noise.
+```bash
+$ ./kabedon-nyaa
+go-libutp: 2019/06/06 03:53:10 socket.go:172: ignoring socket read error: read udp4 0.0.0.0:58865: wsarecvfrom: The connection has been broken due to keep-alive activity detecting a failure while the operation was in progress.
+go-libutp: 2019/06/06 03:53:11 socket.go:172: ignoring socket read error: read udp4 0.0.0.0:58865: wsarecvfrom: The connection has been broken due to keep-alive activity detecting a failure while the operation was in progress.
+go-libutp: 2019/06/06 03:53:11 socket.go:172: ignoring socket read error: read udp4 0.0.0.0:58865: wsarecvfrom: The connection has been broken due to keep-alive activity detecting a failure while the operation was in progress.
+2019-06-06 03:53:12 portfwd.go:31: discovered 0 upnp devices
+```
+Turn it off by setting os.Stdout = nil and just log to a file instead, though this can be disadvantageous...

main.go

@@ -3,6 +3,7 @@ package main
 import (
 	"os"
 	"fmt"
+	"log"
 	"github.com/greenmochi/kabedon-nyaa/torrent"
 )
 
@@ -13,12 +14,27 @@ const (
 func main() {
 	// Run gRPC service, uncomment/comment when you don't want it running
 	//grpc.RunGRPC(port)
+
+	// anacrolix/torrent is outputting crazy noise, turn it off and log to file instead
+	os.Stdout = nil
+
+	f, err := os.Create("kabedon-nyaa.log")
+	if err != nil {
+		log.Println("unable to create log file")
+	}
+	defer f.Close()
+
 	client, err := torrent.NewClient()
 	if err != nil {
-		fmt.Println(err)
+		fmt.Fprintf(f, "%+v\n", err)
 		os.Exit(1)
 	}
-	if client != nil {
-		fmt.Println("client no nil")
+	defer client.Close()
+
+	fmt.Fprintf(f, "Adding magnet")
+	magnet := "magnet:?xt=urn:btih:464aa94a230061049a1017c7550e6cf724aa9767&dn=%5BHorribleSubs%5D%20Sewayaki%20Kitsune%20no%20Senko-san%20-%2009%20%5B360p%5D.mkv&tr=http%3A%2F%2Fnyaa.tracker.wf%3A7777%2Fannounce&tr=udp%3A%2F%2Fopen.stealth.si%3A80%2Fannounce&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337%2Fannounce&tr=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969%2Fannounce&tr=udp%3A%2F%2Fexodus.desync.com%3A6969%2Fannounce"
+	if ok := client.AddMagnet(magnet); !ok {
+		fmt.Fprintf(f, "unable to add magnet")
 	}
+	fmt.Fprintf(f, "done")
 }

torrent/client.go

@@ -5,15 +5,36 @@ import "github.com/anacrolix/torrent"
 // Client wraps the torrent client
 type Client struct {
 	client *torrent.Client
+	torrents []*torrent.Torrent
 }
 
-// NewClient wraps anacrolix torrent new client
+// NewClient wraps NewClient
 func NewClient() (*Client, error) {
 	client, err := torrent.NewClient(nil)
 	if err != nil {
 		return nil, err
 	}
+
 	return &Client{
 		client: client,
 	}, nil
+}
+
+// Close wraps Close
+func (c *Client) Close() {
+	c.Close()
+}
+
+// AddMagnet wraps AddMagnet
+func (c *Client) AddMagnet(uri string) bool {
+	torrent, err := c.client.AddMagnet(uri)
+	if err != nil {
+		return false
+	}
+
+	<- torrent.GotInfo()
+	torrent.DownloadAll()
+	c.client.WaitAll()
+	c.torrents = append(c.torrents, torrent)
+	return true
 }