90 lines
2.9 KiB
Go
90 lines
2.9 KiB
Go
// Copyright © 2018 Alex Goodman
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to deal
|
|
// in the Software without restriction, including without limitation the rights
|
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
// copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in
|
|
// all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
// THE SOFTWARE.
|
|
|
|
package cmd
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
|
|
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: "dive",
|
|
Short: "Docker Image Visualizer & Explorer",
|
|
Long: `Docker Image Visualizer & Explorer`,
|
|
Args: cobra.ExactArgs(1),
|
|
Run: analyze,
|
|
}
|
|
|
|
// 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)
|
|
|
|
// Here you will define your flags and configuration settings.
|
|
// Cobra supports persistent flags, which, if defined here,
|
|
// will be global for your application.
|
|
rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.dive.yaml)")
|
|
|
|
// Cobra also supports local flags, which will only run
|
|
// when this action is called directly.
|
|
rootCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
|
|
}
|
|
|
|
// 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)
|
|
}
|
|
|
|
// Search config in home directory with name ".dive" (without extension).
|
|
viper.AddConfigPath(home)
|
|
viper.SetConfigName(".dive")
|
|
}
|
|
|
|
viper.AutomaticEnv() // read in environment variables that match
|
|
|
|
// If a config file is found, read it in.
|
|
if err := viper.ReadInConfig(); err == nil {
|
|
fmt.Println("Using config file:", viper.ConfigFileUsed())
|
|
}
|
|
}
|