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main.go
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main.go
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package main
import (
"log"
"github.com/fsnotify/fsnotify"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
var cfgFile string
var reload = make(chan bool)
// Version - Set during compilation when using included Makefile
var Version = "X.X.X"
// MysbCmd - The root Mysb commands
var MysbCmd = &cobra.Command{
Use: "mysb",
Short: "A Firmware Uploading Tool for the MYSBootloader via MQTT",
Long: "A Firmware Uploading Tool for the MYSBootloader via MQTT",
Run: func(cmd *cobra.Command, args []string) {
for {
log.Printf("Creating the MQTT transport handler")
controller := MysbMQTT{}
if err := viper.Unmarshal(&controller); err != nil {
log.Panicf("Error unmarshaling configuration: %s", err)
}
if err := controller.Start(); err != nil {
log.Panicf("Error starting MQTT transport handler: %s", err)
}
<-reload
log.Printf("Received Reload Signal")
controller.Stop()
}
},
}
func init() {
cobra.OnInitialize(func() {
viper.SetConfigFile(cfgFile)
viper.WatchConfig()
viper.OnConfigChange(func(e fsnotify.Event) {
log.Printf("Configuration Changed: %s", e.Name)
reload <- true
})
log.Printf("Loading Configuration %s", cfgFile)
if err := viper.ReadInConfig(); err != nil {
log.Fatalf("Error Loading Configuration: %s ", err)
}
log.Printf("Loaded Configuration %s", cfgFile)
})
MysbCmd.PersistentFlags().StringVarP(&cfgFile, "config", "c", ".mysb.yaml", "The path to the configuration file")
}
func main() {
log.Printf("Mysb Version: %s", Version)
Execute()
}
// Execute - Adds all child commands to the root command sets flags appropriately.
func Execute() {
if err := MysbCmd.Execute(); err != nil {
log.Fatal(err)
}
}