root.go

// Copyright © 2017 Teppei Fukuda
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package cmd

import (
	"fmt"
	"os"
	"path/filepath"

	"github.com/knqyf263/pet/config"
	"github.com/spf13/cobra"
)

const (
	version = "0.0.1"
)

var configFile string

// RootCmd represents the base command when called without any subcommands
var RootCmd = &cobra.Command{
	Use:   "pet",
	Short: "Simple command-line snippet manager.",
	Long:  `pet - Simple command-line snippet manager.`,
}

// Execute adds all child commands to the root command sets flags appropriately.
func Execute() {
	if err := RootCmd.Execute(); err != nil {
		fmt.Println(err)
		os.Exit(-1)
	}
}

func init() {
	cobra.OnInitialize(initConfig)
	RootCmd.AddCommand(versionCmd)

	RootCmd.PersistentFlags().StringVar(&configFile, "config", "", "config file (default is $HOME/.config/pet/config.toml)")
	RootCmd.PersistentFlags().BoolVarP(&config.Flag.Debug, "debug", "", false, "debug mode")
}

var versionCmd = &cobra.Command{
	Use:   "version",
	Short: "Print the version number",
	Long:  `Print the version number`,
	Run: func(cmd *cobra.Command, args []string) {
		fmt.Printf("pet version %s\n", version)
	},
}

// initConfig reads in config file and ENV variables if set.
func initConfig() {
	if configFile == "" {
		dir, err := config.GetDefaultConfigDir()
		if err != nil {
			fmt.Fprintf(os.Stderr, "%v", err)
			os.Exit(1)
		}
		configFile = filepath.Join(dir, "config.toml")
	}

	if err := config.Conf.Load(configFile); err != nil {
		fmt.Fprintf(os.Stderr, "%v", err)
		os.Exit(1)
	}
}