Merge pull request #4 from kkga/fix-no-sessions

fix panic when no sessions are running

kak/kak.go

@@ -1,9 +1,10 @@
 package kak
 
 import (
+ "bufio"
+ "bytes"
  "errors"
  "os/exec"
- "strings"
 )
 
 type Context struct {
@@ -12,9 +13,11 @@ type Context struct {
  Buffer Buffer
 }
 
-type Session struct{ Name string }
-type Client struct{ Name string }
-type Buffer struct{ Name string }
+type (
+ Client struct{ Name string }
+ Session struct{ Name string }
+ Buffer struct{ Name string }
+)
 
 func (s *Session) Exists() (exists bool, err error) {
  sessions, err := Sessions()
@@ -45,8 +48,11 @@ func (s *Session) Clients() (clients []Client, err error) {
 
 func Sessions() (sessions []Session, err error) {
  o, err := exec.Command("kak", "-l").Output()
- for _, s := range strings.Split(strings.TrimSpace(string(o)), "\n") {
- sessions = append(sessions, Session{s})
+ scanner := bufio.NewScanner(bytes.NewBuffer(o))
+ for scanner.Scan() {
+ if s := scanner.Text(); s != "" {
+ sessions = append(sessions, Session{s})
+ }
  }
  return
 }