121 lines
3.0 KiB
Go
121 lines
3.0 KiB
Go
package cmd
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import (
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"context"
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"fmt"
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"log"
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"log/slog"
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"os"
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"os/signal"
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"syscall"
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"git.bloy.org/mike/hasshelper/kiosk"
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"git.bloy.org/mike/hasshelper/web"
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_ "github.com/joho/godotenv/autoload"
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"github.com/lmittmann/tint"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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)
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var cfgFile string
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var rootCmd = &cobra.Command{
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Use: "hasshelper",
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Short: "Helper for Home Assistant installations.",
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Run: rootCmdRun,
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}
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func rootCmdRun(cmd *cobra.Command, args []string) {
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var logLevel slog.Level
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logLevel.UnmarshalText([]byte(viper.GetString("loglevel")))
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logger := slog.New(
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tint.NewHandler(os.Stdout, &tint.Options{
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Level: logLevel,
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TimeFormat: "2006-01-02T15:04:05.999",
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NoColor: viper.GetString("deployment") == "prod",
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}))
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logger.Info("HASSHelper startup", "version", viper.GetString("version"))
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exitchan := make(chan bool)
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signalchan := make(chan os.Signal, 1)
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done := make(chan bool, 2)
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signal.Notify(signalchan, syscall.SIGINT, syscall.SIGTERM)
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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go func() {
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select {
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case <-signalchan:
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logger.Warn("received interrupt. Exiting")
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cancel()
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done <- true
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case <-exitchan:
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logger.Error("unexpected exit of component")
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cancel()
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done <- true
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}
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}()
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go web.Run(logger, exitchan, ctx)
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go kiosk.Run(logger, exitchan, ctx)
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logger.Debug("Waiting for exit")
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<-done
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}
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// Execute will kick off cobra's processing of the root command
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func Execute() {
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if err := rootCmd.Execute(); err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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}
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func init() {
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var userConfigDir, err = os.UserConfigDir()
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const dirName = "hasshelper"
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var defDir = fmt.Sprintf("%s%c%s", "/etc", os.PathSeparator, dirName)
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if err == nil {
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defDir = fmt.Sprintf("%s%c%s", userConfigDir, os.PathSeparator, dirName)
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viper.AddConfigPath(defDir)
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} else {
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log.Println("could not locate user config dir:", err)
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}
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rootCmd.PersistentFlags().StringVarP(&cfgFile, "config", "c", "",
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fmt.Sprintf("config file (default is %s%c%s)", defDir, os.PathSeparator, "hasshelper.toml"))
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cobra.OnInitialize(initConfig)
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viper.AddConfigPath(fmt.Sprintf("/etc%c%s", os.PathSeparator, dirName))
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}
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func initConfig() {
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viper.Set("version", gitVersion)
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viper.SetDefault("deployment", "prod")
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viper.SetDefault("loglevel", "info")
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viper.SetEnvPrefix("HASS")
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viper.AutomaticEnv()
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if cfgFile != "" {
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viper.SetConfigFile(cfgFile)
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}
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if err := viper.ReadInConfig(); err != nil {
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if _, ok := err.(viper.ConfigFileNotFoundError); ok {
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log.Printf("no config file found. Environment only")
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} else {
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log.Fatalf("error reading config file: %v\n", err)
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}
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}
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expected_config := []string{
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"deployment",
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"image_dir",
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"version",
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"webserver_port",
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"mqtt_broker_url",
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"mqtt_broker_user",
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"mqtt_broker_password",
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"mqtt_presence_topic",
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"kiosk_cmd_screen_on",
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"kiosk_cmd_screen_off",
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}
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for _, key := range expected_config {
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if !viper.IsSet(key) {
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log.Fatalf("Missing configuration value: %s\n", key)
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os.Exit(1)
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}
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}
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}
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