bottin-agenda/cmd/root.go

package cmd

import (
	"fmt"
	"os"
	"strings"

	"codeberg.org/vlbeaudoin/serpents"
	"github.com/spf13/cobra"
	"github.com/spf13/viper"
)

var cfgFile string

// rootCmd represents the base command when called without any subcommands
var rootCmd = &cobra.Command{
	Use:   "bottin-agenda",
	Short: "Application de gestion de distribution d'agendas",
}

// Execute adds all child commands to the root command and sets flags appropriately.
// This is called by main.main(). It only needs to happen once to the rootCmd.
func Execute() {
	err := rootCmd.Execute()
	if err != nil {
		os.Exit(1)
	}
}

func init() {
	cobra.OnInitialize(initConfig)

	rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.bottin-agenda.yaml)")

	// web.api.host
	serpents.String(rootCmd.PersistentFlags(),
		"web.api.host", "web-api-host", "api",
		"Remote API server host")

	// web.api.key
	serpents.String(rootCmd.PersistentFlags(),
		"web.api.key", "web-api-key", "bottin-agenda",
		"Remote API server key")

	// web.api.protocol
	serpents.String(rootCmd.PersistentFlags(),
		"web.api.protocol", "web-api-protocol", "http",
		"Remote API server protocol")

	// web.api.port
	serpents.Int(rootCmd.PersistentFlags(),
		"web.api.port", "web-api-port", 1313,
		"Remote API server port")

	// web.password
	serpents.String(rootCmd.PersistentFlags(),
		"web.password", "web-password", "bottin-agenda",
		"Web client password")

	// web.port
	serpents.Int(rootCmd.PersistentFlags(),
		"web.port", "web-port", 2313,
		"Web client port")

	// web.user
	serpents.String(rootCmd.PersistentFlags(),
		"web.user", "web-user", "bottin-agenda",
		"Web client user")

	// api.key
	serpents.String(rootCmd.PersistentFlags(),
		"api.key", "api-key", "bottin-agenda",
		"API server key. Leave empty for no key auth.")

	// api.port
	serpents.Int(rootCmd.PersistentFlags(),
		"api.port", "api-port", 1313,
		"API server port")

	// bottin.api.host
	serpents.String(rootCmd.PersistentFlags(),
		"bottin.api.host", "bottin-api-host", "api",
		"Remote bottin API server host")

	// bottin.api.key
	serpents.String(rootCmd.PersistentFlags(),
		"bottin.api.key", "bottin-api-key", "bottin",
		"Remote bottin API server key")

	// bottin.api.protocol
	serpents.String(rootCmd.PersistentFlags(),
		"bottin.api.protocol", "bottin-api-protocol", "http",
		"Remote bottin API server protocol")

	// bottin.api.port
	serpents.Int(rootCmd.PersistentFlags(),
		"bottin.api.port", "bottin-api-port", 1312,
		"Remote bottin API server port")

	// db.database
	serpents.String(rootCmd.PersistentFlags(),
		"db.database", "db-database", "bottin-agenda",
		"Postgres database")

	// db.host
	serpents.String(rootCmd.PersistentFlags(),
		"db.host", "db-host", "db",
		"Postgres host")

	// db.password
	serpents.String(rootCmd.PersistentFlags(),
		"db.password", "db-password", "bottin-agenda",
		"Postgres password")

	// db.port
	serpents.Int(rootCmd.PersistentFlags(),
		"db.port", "db-port", 5432,
		"Postgres port")

	// db.user
	serpents.String(rootCmd.PersistentFlags(),
		"db.user", "db-user", "bottin-agenda",
		"Postgres user")
}

// initConfig reads in config file and ENV variables if set.
func initConfig() {
	if cfgFile != "" {
		// Use config file from the flag.
		viper.SetConfigFile(cfgFile)
	} else {
		// Find home directory.
		home, err := os.UserHomeDir()
		cobra.CheckErr(err)

		// Search config in home directory with name ".bottin-agenda" (without extension).
		viper.AddConfigPath(home)
		viper.SetConfigType("yaml")
		viper.SetConfigName(".bottin-agenda")
	}

	viper.SetEnvPrefix("BOTTINAGENDA")
	viper.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
	viper.AutomaticEnv() // read in environment variables that match

	// If a config file is found, read it in.
	if err := viper.ReadInConfig(); err == nil {
		fmt.Fprintln(os.Stderr, "Using config file:", viper.ConfigFileUsed())
	}
}