106 lines
2.5 KiB
Go
106 lines
2.5 KiB
Go
/*
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Copyright © 2023 Ask Bjørn Hansen
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See LICENSE
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*/
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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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"go.ntppool.org/data-api/version"
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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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type CLI struct {
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root *cobra.Command
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}
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func NewCLI() *CLI {
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cli := &CLI{}
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cli.root = cli.rootCmd()
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cli.init(cli.root)
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return cli
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}
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// RootCmd represents the base command when called without any subcommands
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func (cli *CLI) rootCmd() *cobra.Command {
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var cmd = &cobra.Command{
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Use: "data-api",
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Short: "A brief description of your application",
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Long: `A longer description that spans multiple lines and likely contains
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examples and usage of using your application. For example:
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Cobra is a CLI library for Go that empowers applications.
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This application is a tool to generate the needed files
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to quickly create a Cobra application.`,
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// Uncomment the following line if your bare application
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// has an action associated with it:
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// Run: func(cmd *cobra.Command, args []string) { },
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}
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cmd.AddCommand(cli.serverCmd())
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cmd.AddCommand(version.VersionCmd())
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return cmd
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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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cli := NewCLI()
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if err := cli.root.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 (cli *CLI) init(cmd *cobra.Command) {
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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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cmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.data-api.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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cmd.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 ".data-api" (without extension).
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viper.AddConfigPath(home)
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viper.SetConfigName(".data-api")
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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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