105 lines
2.4 KiB
Go
105 lines
2.4 KiB
Go
package cmd
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import (
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"fmt"
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"log"
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"log/slog"
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"math/rand"
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"os"
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"strings"
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"time"
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"git.bloy.org/mike/hasshelper/web"
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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 logLevelVar(str string) slog.Level {
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levelUpper := strings.ToUpper(str)
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switch levelUpper {
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case "DEBUG":
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return slog.LevelDebug
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case "INFO":
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return slog.LevelInfo
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case "WARN":
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return slog.LevelWarn
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case "ERROR":
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return slog.LevelError
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default:
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return slog.LevelInfo
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}
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}
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func rootCmdRun(cmd *cobra.Command, args []string) {
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logLevel := logLevelVar(viper.GetString("loglevel"))
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logger := slog.New(slog.NewTextHandler(os.Stdout,
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&slog.HandlerOptions{Level: logLevel}))
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logger.Info("HASSHelper startup", "version", viper.GetString("version"))
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exitchan := make(chan bool)
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web.Run(logger, exitchan)
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<-exitchan // run the main command until one of the goroutines is 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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rootCmd.PersistentFlags().StringVarP(&cfgFile, "config", "c", "",
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"config file (default is $HOME/.config/hasshelper/config.toml)")
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cobra.OnInitialize(initConfig)
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const dirName = "hasshelper"
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var userConfigDir, err = os.UserConfigDir()
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if err == nil {
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viper.AddConfigPath(
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fmt.Sprintf("%s%c%s", userConfigDir, os.PathSeparator, dirName))
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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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viper.AddConfigPath(fmt.Sprintf("/etc%c%s", os.PathSeparator, dirName))
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viper.SetConfigName("config.toml")
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viper.SetEnvPrefix("hasshelper")
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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.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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}
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for _, key := range expected_config {
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if !viper.IsSet(key) {
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fmt.Fprintf(os.Stderr, "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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rand.Seed(time.Now().UnixNano())
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}
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