cli: add battery mode option (#10901)

cmd/flags.go

@@ -12,6 +12,9 @@ const (
 	flagHeaders            = "log-headers"
 	flagHeadersDescription = "Log headers"
 
+	flagBatteryMode            = "battery-mode"
+	flagBatteryModeDescription = "Set battery mode (normal, hold, charge)"
+
 	flagCurrent            = "current"
 	flagCurrentDescription = "Set maximum current"
 

cmd/meter.go

@@ -1,6 +1,7 @@
 package cmd
 
 import (
+	"github.com/evcc-io/evcc/api"
 	"github.com/evcc-io/evcc/util/config"
 	"github.com/spf13/cobra"
 )
@@ -15,6 +16,7 @@ var meterCmd = &cobra.Command{
 
 func init() {
 	rootCmd.AddCommand(meterCmd)
+	meterCmd.Flags().StringP(flagBatteryMode, "b", "", flagBatteryModeDescription)
 }
 
 func runMeter(cmd *cobra.Command, args []string) {
@@ -37,8 +39,28 @@ func runMeter(cmd *cobra.Command, args []string) {
 		log.FATAL.Fatal(err)
 	}
 
+	mode := api.BatteryUnknown
+	if val := cmd.Flags().Lookup(flagBatteryMode).Value.String(); val != "" {
+		var err error
+		mode, err = api.BatteryModeString(val)
+		if err != nil {
+			log.ERROR.Fatalln(err)
+		}
+	}
+
 	meters := config.Meters().Devices()
 
+	if mode != api.BatteryUnknown {
+		for _, dev := range meters {
+			v := dev.Instance()
+			if b, ok := v.(api.BatteryController); ok {
+				if err := b.SetBatteryMode(mode); err != nil {
+					log.FATAL.Fatalln("set battery mode:", err)
+				}
+			}
+		}
+	}
+
 	d := dumper{len: len(meters)}
 	for _, dev := range meters {
 		v := dev.Instance()