Merge pull request #46 from ipfs/feat/override-mux-prefs

add env var for overriding muxer prefs
libp2p · May 6, 2016 · 36335e4 · 36335e4
2 parents 0436764 + 2d0c57e
commit 36335e4
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/p2p/net/swarm/swarm.go b/p2p/net/swarm/swarm.go
@@ -5,6 +5,8 @@ package swarm
 import (
 	"fmt"
 	"io/ioutil"
+	"os"
+	"strings"
 	"sync"
 	"time"
 
@@ -48,6 +50,11 @@ func init() {
 	msstpt.AddTransport("/yamux/1.0.0", ymxtpt)
 	msstpt.AddTransport("/spdy/3.1.0", spdy.Transport)
 
+	// allow overriding of muxer preferences
+	if prefs := os.Getenv("LIBP2P_MUX_PREFS"); prefs != "" {
+		msstpt.OrderPreference = strings.Fields(prefs)
+	}
+
 	PSTransport = msstpt
 }