/
root.go
97 lines (81 loc) · 2.48 KB
/
root.go
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/*
Copyright © 2021 Matt Davis <maroda@rainbowq.io>
*/
package cmd
import (
"fmt"
"log"
"os"
"path/filepath"
homedir "github.com/mitchellh/go-homedir"
"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: "qio",
Short: "RainbowQ ::: all your knowledgebase are belong to us",
Example: `
::: Display a Plug within an Almanac:
$ qio ask <almanac> <plug>
::: List what QIO knows:
$ qio list
::: QIO has randomizers! Toss a coin for HEADS or TAILS, get a token, or get a URL-encoded base64 token:
$ qio coin
$ qio coin -t
$ qio coin -b
::: Install shell completion (see 'qio completion --help' for more):
$ qio completion zsh > "${fpath[1]}/_qio"
::: Export known Rainbow to a local TOML file:
$ qio export
`,
Version: "0.2.1",
}
// 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() {
// cobra.CheckErr(rootCmd.Execute())
// testing a non-function err here
if err := rootCmd.Execute(); err != nil {
fmt.Println(err)
os.Exit(1)
}
}
func init() {
cobra.OnInitialize(initConfig)
rootCmd.PersistentFlags().Bool("version", false, "print the version")
rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.config/qio/rainbow.toml)")
}
// 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 := homedir.Dir()
cobra.CheckErr(err)
// Read ~/.config/qio/ or create if missing
cfgPath := fmt.Sprintf("%s/.config/qio/", home)
dir := filepath.Clean(cfgPath)
err = os.MkdirAll(dir, 0700)
if err != nil {
log.Fatalf("error creating config dir: %s", err)
}
_, err = os.OpenFile(dir+"/rainbow.toml", os.O_RDONLY|os.O_CREATE, 0660)
if err != nil {
log.Fatalf("error creating config file: %s", err)
}
// set config in "~/.config/qio/rainbow.toml"
viper.AddConfigPath(cfgPath)
viper.SetConfigName("rainbow")
viper.SetConfigType("toml")
}
viper.AutomaticEnv() // read in environment variables that match
// If a config file is found, read it in.
if err := viper.ReadInConfig(); err != nil {
log.Fatalf("error reading config file: %s", err)
}
// fmt.Fprintln(os.Stderr, "Using config file:", viper.ConfigFileUsed())
}