forked from joshpmcghee/parsec-terraform
/
root.go
84 lines (70 loc) · 2.5 KB
/
root.go
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// Copyright © 2017 Jade Iqbal <jadeiqbal@fastmail.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"
homedir "github.com/mitchellh/go-homedir"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
// RootCmd represents the base command when called without any subcommands
var RootCmd = &cobra.Command{
Use: "parsec-ec2",
Short: "Start and stop Parsec EC2 instances with a single command",
Long: ``,
}
// 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)
}
}
var installPath, region, cfgFile, goPath, instanceType, projectPath, amiName string
var volumeSize int
func init() {
cobra.OnInitialize(initConfig)
RootCmd.PersistentFlags().StringVarP(®ion, "region", "r", "", "aws region")
RootCmd.PersistentFlags().StringVarP(&instanceType, "instance-type", "i", "", "ec2 instance type")
RootCmd.PersistentFlags().StringVarP(&amiName, "ami-name", "a", "", "AMI Name to create ec2 instance")
}
// 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()
if err != nil {
fmt.Println(err)
os.Exit(1)
}
goPath = os.Getenv("GOPATH")
projectPath = fmt.Sprintf("%s/src/github.com/tereshkin/parsec-ec2", goPath)
installPath = fmt.Sprintf("%s/.parsec-ec2", home)
// Search config in home directory with name ".parsec-ec2" (without extension).
viper.AddConfigPath(home)
viper.SetConfigName(".parsec-ec2")
}
viper.SetEnvPrefix("parsec_ec2")
viper.AutomaticEnv() // read in environment variables that match
serverKey = viper.GetString("server_key")
// If a config file is found, read it in.
if err := viper.ReadInConfig(); err == nil {
fmt.Println("Using config file:", viper.ConfigFileUsed())
}
}