Created
May 2, 2017 05:51
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// Copyright © 2017 NAME HERE <EMAIL ADDRESS> | |
// | |
// Licensed under the Apache License, Version 2.0 (the "License"); | |
// you may not use this file except in compliance with the License. | |
// You may obtain a copy of the License at | |
// | |
// http://www.apache.org/licenses/LICENSE-2.0 | |
// | |
// Unless required by applicable law or agreed to in writing, software | |
// distributed under the License is distributed on an "AS IS" BASIS, | |
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
// See the License for the specific language governing permissions and | |
// limitations under the License. | |
package cmd | |
import ( | |
"fmt" | |
"os" | |
"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: "samp", | |
Short: "A brief description of your application", | |
Long: `A longer description that spans multiple lines and likely contains | |
examples and usage of using your application. For example: | |
Cobra is a CLI library for Go that empowers applications. | |
This application is a tool to generate the needed files | |
to quickly create a Cobra application.`, | |
// Uncomment the following line if your bare application | |
// has an action associated with it: | |
// Run: func(cmd *cobra.Command, args []string) { }, | |
} | |
// Execute adds all child commands to the root command sets flags appropriately. | |
// This is called by main.main(). It only needs to happen once to the rootCmd. | |
func Execute() { | |
if err := RootCmd.Execute(); err != nil { | |
fmt.Println(err) | |
os.Exit(-1) | |
} | |
} | |
func init() { | |
cobra.OnInitialize(initConfig) | |
// Here you will define your flags and configuration settings. | |
// Cobra supports Persistent Flags, which, if defined here, | |
// will be global for your application. | |
RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.samp.yaml)") | |
// Cobra also supports local flags, which will only run | |
// when this action is called directly. | |
RootCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle") | |
} | |
// initConfig reads in config file and ENV variables if set. | |
func initConfig() { | |
if cfgFile != "" { // enable ability to specify config file via flag | |
viper.SetConfigFile(cfgFile) | |
} | |
viper.SetConfigName(".samp") // name of config file (without extension) | |
viper.AddConfigPath(os.Getenv("HOME")) // adding home directory as first search path | |
viper.AutomaticEnv() // read in environment variables that match | |
// If a config file is found, read it in. | |
if err := viper.ReadInConfig(); err == nil { | |
fmt.Println("Using config file:", viper.ConfigFileUsed()) | |
} | |
} |
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