72 lines
1.8 KiB
Go
72 lines
1.8 KiB
Go
package cmd
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import (
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"fmt"
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"os"
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"github.com/spf13/cobra"
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"go.uber.org/zap"
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"github.com/spf13/viper"
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)
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var configFile string
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var debug bool
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var logger *zap.Logger
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// rootCmd represents the base command when called without any subcommands
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var rootCmd = &cobra.Command{
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Use: "ble-sensors",
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Short: "A brief description of your application",
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Long: `A longer description that spans multiple lines and likely contains
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examples and usage of using your application. For example:
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Cobra is a CLI library for Go that empowers applications.
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This application is a tool to generate the needed files
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to quickly create a Cobra application.`,
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// Uncomment the following line if your bare application
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// has an action associated with it:
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// Run: func(cmd *cobra.Command, args []string) { },
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}
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// Execute adds all child commands to the root command and sets flags appropriately.
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// This is called by main.main(). It only needs to happen once to the rootCmd.
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func Execute() {
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if err := rootCmd.Execute(); err != nil {
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fmt.Println(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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cobra.OnInitialize(initConfig)
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rootCmd.PersistentFlags().StringVar(&configFile, "config", "", "config file")
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rootCmd.PersistentFlags().BoolVar(&debug, "debug", false, "Turn debug messages on.")
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}
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func initConfig() {
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if configFile != "" {
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viper.SetConfigFile(configFile)
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} else {
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viper.AddConfigPath(".")
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viper.AddConfigPath("/opt/ble-sensors")
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viper.SetConfigName("ble-sensors")
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}
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var err error
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if debug {
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logger, err = zap.NewDevelopment()
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} else {
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logger, err = zap.NewProduction()
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}
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if err != nil {
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fmt.Printf("unable to initialize logger: %s\n", err.Error())
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os.Exit(1)
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}
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err = viper.ReadInConfig()
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if err != nil {
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fmt.Printf("unable to open config file: %s\n", err.Error())
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os.Exit(1)
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}
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logger.Info("found config file", zap.String("filename", viper.ConfigFileUsed()))
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}
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