142 lines
4.5 KiB
Go
142 lines
4.5 KiB
Go
package cmd
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import (
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"os"
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"path"
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"strings"
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"time"
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"github.com/home-assistant/cli/client"
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"github.com/home-assistant/cli/spinner"
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homedir "github.com/mitchellh/go-homedir"
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log "github.com/sirupsen/logrus"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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"golang.org/x/crypto/ssh/terminal"
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)
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var cfgFile string
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var endPoint string
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var logLevel string
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var apiToken string
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var rawJSON bool
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var noProgress bool
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// ExitWithError is a hint for the called that we want a non-zero exit code
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var ExitWithError = false
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// ProgressSpinner is a general spinner that can be used across the CLI
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var ProgressSpinner = spinner.New(spinner.CharSets[0], 125*time.Millisecond)
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var rootCmd = &cobra.Command{
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Use: path.Base(os.Args[0]),
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Short: "A small CLI program to control Home Assistant",
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Long: `
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The Home Assistant CLI is a small and simple command line utility that allows
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you to control and configure different aspects of Home Assistant`,
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PersistentPreRun: func(cmd *cobra.Command, args []string) {
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// set loglevel if posible
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logrusLevel, err := log.ParseLevel(viper.GetString("log-level"))
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if err == nil {
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log.SetLevel(logrusLevel)
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}
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client.RawJSON = viper.GetBool("raw-json")
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// Only shows spinner output when we have a TTY
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if !noProgress && terminal.IsTerminal(int(os.Stdout.Fd())) {
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// Write to Stderr, helps when redirecting output, e.g., to a file
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ProgressSpinner.Writer = os.Stderr
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}
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log.WithFields(log.Fields{
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"apiToken": viper.GetString("api-token"),
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"cfgFile": viper.GetString("config"),
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"endpoint": viper.GetString("endpoint"),
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"logLevel": viper.GetString("log-level"),
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"noProgress": viper.GetBool("no-progress"),
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"rawJSON": viper.GetBool("raw-json"),
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}).Debugln("Debug flags")
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},
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PersistentPostRun: func(cmd *cobra.Command, args []string) {
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if ProgressSpinner.Active() {
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ProgressSpinner.Stop()
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}
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},
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}
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// Execute represents the entrypoint for when called without any subcommand
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func Execute() {
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if err := rootCmd.Execute(); err != nil {
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log.Fatalf("Error while executing rootCmd: %s", err)
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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(&cfgFile, "config", "", "Optional config file (default is $HOME/.homeassistant.yaml)")
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rootCmd.PersistentFlags().StringVar(&endPoint, "endpoint", "", "Endpoint for Home Assistant Supervisor (default is 'supervisor')")
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rootCmd.PersistentFlags().StringVar(&logLevel, "log-level", "", "Log level (defaults to Warn)")
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rootCmd.PersistentFlags().StringVar(&apiToken, "api-token", "", "Home Assistant Supervisor API token")
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rootCmd.PersistentFlags().BoolVar(&rawJSON, "raw-json", false, "Output raw JSON from the API")
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rootCmd.PersistentFlags().BoolVar(&noProgress, "no-progress", false, "Disable the progress spinner")
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viper.BindPFlag("config", rootCmd.PersistentFlags().Lookup("config"))
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viper.BindPFlag("endpoint", rootCmd.PersistentFlags().Lookup("endpoint"))
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viper.BindPFlag("log-level", rootCmd.PersistentFlags().Lookup("log-level"))
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viper.BindPFlag("api-token", rootCmd.PersistentFlags().Lookup("api-token"))
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viper.BindPFlag("raw-json", rootCmd.PersistentFlags().Lookup("raw-json"))
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viper.BindPFlag("no-progress", rootCmd.PersistentFlags().Lookup("no-progress"))
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viper.SetDefault("endpoint", "supervisor")
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viper.SetDefault("log-level", "warn")
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viper.SetDefault("api-token", "")
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// Configure global spinner
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ProgressSpinner.Suffix = " Processing..."
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ProgressSpinner.FinalMSG = "Processing... Done.\n\n"
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}
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// initConfig reads in config file and ENV variables if set.
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func initConfig() {
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viper.SetEnvPrefix("SUPERVISOR")
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viper.SetEnvKeyReplacer(strings.NewReplacer("-", "_"))
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viper.AutomaticEnv()
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// bind to current API token ENV variable
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viper.BindEnv("api-token", "SUPERVISOR_TOKEN")
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// set loglevel if possible
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logLevel, err := log.ParseLevel(viper.GetString("log-level"))
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if err == nil {
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log.SetLevel(logLevel)
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}
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if cfgFile != "" {
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// Use config file from the flag.
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viper.SetConfigFile(cfgFile)
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} else {
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// Find home directory.
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home, err := homedir.Dir()
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if err != nil {
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log.Fatalf("Error while finding home directory: %s", err)
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}
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// Search config in home directory with name ".homeassistant" (without extension).
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viper.AddConfigPath(home)
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log.WithField("homedir", home).Debug("Adding homedir to searchpath")
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viper.SetConfigName(".homeassistant")
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}
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// If a config file is found, read it in.
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if err := viper.ReadInConfig(); err == nil {
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log.WithField("configfile", viper.ConfigFileUsed()).Info("Using configfile")
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} else {
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log.Info("No configfile found")
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}
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}
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