75 lines
2.1 KiB
Go
75 lines
2.1 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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homedir "github.com/mitchellh/go-homedir"
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"github.com/spf13/viper"
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)
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var cfgFile string
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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: "pigeon",
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Short: "An off-grid, serverless, peer-to-peer protocol for building software that works on poor internet connections, or entirely offline.",
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Long: `Pigeon enables offline and off-grid computer systems to exchange messages
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in a way that is delay tolerant, tamper resistant and easily transmitted
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over non-networked systems (such as sneakernet).`,
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Run: func(cmd *cobra.Command, args []string) {
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fmt.Println("Hello, Cobra!")
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},
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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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// Here you will define your flags and configuration settings.
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// Cobra supports persistent flags, which, if defined here,
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// will be global for your application.
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rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.pigeon.yaml)")
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// Cobra also supports local flags, which will only run
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// when this action is called directly.
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rootCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
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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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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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fmt.Println(err)
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os.Exit(1)
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}
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// Search config in home directory with name ".pigeon" (without extension).
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viper.AddConfigPath(home)
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viper.SetConfigName(".pigeon")
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}
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viper.AutomaticEnv() // read in environment variables that match
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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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fmt.Println("Using config file:", viper.ConfigFileUsed())
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}
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}
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