store tomato icon in config path

main.go

@@ -9,9 +9,9 @@ import (
 	"time"
 )
 
-func notifier() Notifier {
+func notifier(iconPath string) Notifier {
 	if runtime.GOOS == "linux" {
-		return NewLibNotifier()
+		return NewLibNotifier(iconPath)
 	}
 	return NoopNotifier{}
 }
@@ -37,7 +37,7 @@ func start(path *string) func(*cli.Cmd) {
 				NPomodoros: *pomodoros,
 				Duration:   parsed,
 			}
-			runner, err := NewTaskRunner(task, db, notifier())
+			runner, err := NewTaskRunner(task, db, notifier(*path+"/icon.png"))
 			maybe(err)
 			runner.Start()
 			startUI(runner)

types.go

@@ -159,16 +159,18 @@ type LibNotifier struct {
 	iconPath string
 }
 
-func NewLibNotifier() Notifier {
+func NewLibNotifier(iconPath string) Notifier {
 	ln := &LibNotifier{
 		client: libnotify.NewClient(),
 	}
-	// Write the tomato icon to a temp path
+	// Write the built-in tomato icon if it
+	// doesn't already exist.
+	_, err := os.Stat(iconPath)
+	if os.IsNotExist(err) {
 		raw := MustAsset("tomato-icon.png")
-	fp, _ := ioutil.TempFile("", "pomo")
+		ioutil.WriteFile(iconPath, raw, 0644)
-	fp.Write(raw)
+	}
-	ln.iconPath = fp.Name()
+	ln.iconPath = iconPath
-	fp.Close()
 	return ln
 }