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root.go
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root.go
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// Copyright © 2018 Jack Zampolin <jack@blockstack.com>
//
// 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/irisnet/iks/api"
homedir "github.com/mitchellh/go-homedir"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
var (
// Path to config
cfgFile string
// The actual app config
server *api.Server
// Version for the application. Set via ldflags
Version = "undefined"
// Commit (git) for the application. Set via ldflags
Commit = "undefined"
// Branch (git) for the application. Set via ldflags
Branch = "undefined"
)
// rootCmd represents the base command when called without any subcommands
var rootCmd = &cobra.Command{
Use: "iks",
Short: "A key managment server for IRIS Hub",
}
// 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() {
if err := rootCmd.Execute(); err != nil {
fmt.Println(err)
os.Exit(1)
}
}
func init() {
cobra.OnInitialize(initConfig)
rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.iks/config.yaml)")
rootCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
}
func initConfig() {
server = &api.Server{
Version: Version,
Commit: Commit,
Branch: Branch,
}
if cfgFile != "" {
viper.SetConfigFile(cfgFile)
} else {
home, err := homedir.Dir()
if err != nil {
fmt.Println(err)
os.Exit(1)
}
// viper.AddConfigPath(home)
viper.AddConfigPath(fmt.Sprintf("%s/.iks/", home))
viper.SetConfigName("config")
}
viper.AutomaticEnv() // read in environment variables that match
// If a config file is found, read it in.
if err := viper.ReadInConfig(); err == nil {
viper.Unmarshal(&server)
}
}