feat(cmd/daemon): new flag to set clean cache interval

cmd/daemon/daemon.go

@@ -2,6 +2,7 @@ package daemon
 
 import (
 	"log"
+	"time"
 
 	"github.com/go-flucky/flucky/pkg/config"
 	"github.com/go-flucky/flucky/pkg/daemon"
@@ -10,6 +11,7 @@ import (
 
 var compression bool
 var configFile string
+var cleanCacheIntervall string
 
 var daemonCmd = &cobra.Command{
 	Use:   "daemon",
@@ -21,9 +23,14 @@ var daemonCmd = &cobra.Command{
 			log.Fatalln(err)
 		}
 
-		err = daemon.Start(cnf, compression)
+		duration, err := time.ParseDuration(cleanCacheIntervall)
 		if err != nil {
-			panic(err)
+			log.Fatalf("Can not parse clean cache interval into duration time: %v", err)
+		}
+
+		err = daemon.Start(cnf, duration, compression)
+		if err != nil {
+			log.Fatalln(err)
 		}
 
 	},
@@ -32,6 +39,7 @@ var daemonCmd = &cobra.Command{
 func InitCmd(cmd *cobra.Command, cnfFile string) {
 	configFile = cnfFile
 	cmd.AddCommand(daemonCmd)
-	daemonCmd.Flags().BoolVarP(&compression, "compression", "c", true, "Compress measured values")
+	daemonCmd.Flags().BoolVar(&compression, "compression", true, "Compress measured values")
+	daemonCmd.Flags().StringVar(&cleanCacheIntervall, "clean-cache-intervall", "30m", "Minute intervall to clean cache and write measured values into logfile")
 
 }

pkg/daemon/daemon.go

@@ -16,7 +16,9 @@ import (
 )
 
 // Start the daemon
-func Start(cnf *config.Configuration, compression bool) error {
+func Start(cnf *config.Configuration, cleanCacheIntervall time.Duration, compression bool) error {
+
+	ticker := time.Tick(cleanCacheIntervall)
 
 	interrupt := make(chan os.Signal, 1)
 	signal.Notify(interrupt, os.Interrupt, os.Kill, syscall.SIGTERM)
@@ -30,8 +32,6 @@ func Start(cnf *config.Configuration, compression bool) error {
 
 	temperatures := make([]*types.Temperature, 0)
 
-	ticker := time.Tick(time.Second * 300)
-
 	rgbLEDs := cnf.GetRGBLEDs(config.ENABLED)
 	err := rgbled.Green(rgbLEDs)
 	if err != nil {