Rename saveState to state.save

cluster/cluster.go

@@ -90,7 +90,7 @@ func (c *Cluster) Join(addrs []string) error {
 
 // Leave saves the current state before leaving, then leaves the cluster
 func (c *Cluster) Leave() {
-	c.saveState()
+	c.state.save()
 	c.ml.Leave(10 * time.Second)
 	c.ml.Shutdown() //nolint: errcheck
 }
@@ -138,7 +138,7 @@ func (c *Cluster) Members() <-chan []common.Node {
 			}
 			c.state.Nodes = nodes
 			changes <- nodes
-			c.saveState()
+			c.state.save()
 		}
 	}()
 	return changes

cluster/state.go

@@ -18,12 +18,12 @@ type state struct {
 
 const statePath = "/var/lib/wesher/state.json"
 
-func (c *Cluster) saveState() error {
+func (s *state) save() error {
 	if err := os.MkdirAll(path.Dir(statePath), 0700); err != nil {
 		return err
 	}
 
-	stateOut, err := json.MarshalIndent(c.state, "", "  ")
+	stateOut, err := json.MarshalIndent(s, "", "  ")
 	if err != nil {
 		return err
 	}

cluster/state_test.go

@@ -22,7 +22,7 @@ func Test_state_save_soad(t *testing.T) {
 		},
 	}
 
-	cluster.saveState()
+	cluster.state.save()
 	loaded := &state{}
 	loadState(loaded)