use ipfs's fsrepo.BestKnownPath to locate the ipfs daemon

Author: kalmi

gxutil/shell.go

@@ -1,16 +1,15 @@
 package gxutil
 
 import (
-	"errors"
 	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strings"
 
 	sh "github.com/ipfs/go-ipfs-api"
-	hd "github.com/mitchellh/go-homedir"
 	manet "github.com/jbenet/go-multiaddr-net"
 	ma "github.com/jbenet/go-multiaddr-net/Godeps/_workspace/src/github.com/jbenet/go-multiaddr"
+	homedir "github.com/mitchellh/go-homedir"
 	log "github.com/whyrusleeping/stump"
 )
 
@@ -32,9 +31,9 @@ func NewShell() *sh.Shell {
 func getLocalApiShell() (*sh.Shell, error) {
 	ipath := os.Getenv("IPFS_PATH")
 	if ipath == "" {
-		home, err := hd.Dir()
+		home, err := homedir.Dir()
 		if err != nil {
-			return nil, errors.New("neither IPFS_PATH nor home dir set")
+			return nil, err
 		}
 
 		ipath = filepath.Join(home, ".ipfs")