140 lines
3.8 KiB
Go
140 lines
3.8 KiB
Go
package cmd
|
|
|
|
import (
|
|
"fmt"
|
|
"github.com/wagoodman/dive/utils"
|
|
"io/ioutil"
|
|
"os"
|
|
|
|
"github.com/k0kubun/go-ansi"
|
|
"github.com/mitchellh/go-homedir"
|
|
log "github.com/sirupsen/logrus"
|
|
"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 [IMAGE]",
|
|
Short: "Docker Image Visualizer & Explorer",
|
|
Long: `This tool provides a way to discover and explore the contents of a docker image. Additionally the tool estimates
|
|
the amount of wasted space and identifies the offending files from the image.`,
|
|
Args: cobra.MaximumNArgs(1),
|
|
Run: analyze,
|
|
}
|
|
|
|
// Execute adds all child commands to the root command and sets flags appropriately.
|
|
func Execute() {
|
|
if err := rootCmd.Execute(); err != nil {
|
|
fmt.Println(err)
|
|
utils.Exit(1)
|
|
}
|
|
}
|
|
|
|
func init() {
|
|
ansi.CursorHide()
|
|
|
|
cobra.OnInitialize(initConfig)
|
|
cobra.OnInitialize(initLogging)
|
|
|
|
rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.dive.yaml, ~/.config/dive.yaml, or $XDG_CONFIG_HOME/dive.yaml)")
|
|
|
|
rootCmd.PersistentFlags().BoolP("version", "v", false, "display version number")
|
|
}
|
|
|
|
// 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)
|
|
utils.Exit(1)
|
|
}
|
|
|
|
// allow for:
|
|
// ~/.dive.yaml
|
|
// $XDG_CONFIG_HOME/dive.yaml
|
|
// ~/.config/dive.yaml
|
|
hiddenHomeCfg := home + string(os.PathSeparator) + ".dive.yaml"
|
|
if _, err := os.Stat(hiddenHomeCfg); os.IsNotExist(err) {
|
|
viper.SetConfigName("dive")
|
|
|
|
xdgHome := os.Getenv("XDG_CONFIG_HOME")
|
|
if len(xdgHome) > 0 {
|
|
viper.AddConfigPath(xdgHome)
|
|
}
|
|
|
|
viper.AddConfigPath(home + string(os.PathSeparator) + ".config")
|
|
|
|
} else {
|
|
viper.SetConfigFile(hiddenHomeCfg)
|
|
}
|
|
}
|
|
|
|
viper.SetDefault("log.level", log.InfoLevel.String())
|
|
viper.SetDefault("log.path", "./dive.log")
|
|
viper.SetDefault("log.enabled", true)
|
|
// keybindings: status view / global
|
|
viper.SetDefault("keybinding.quit", "ctrl+c")
|
|
viper.SetDefault("keybinding.toggle-view", "tab, ctrl+space")
|
|
viper.SetDefault("keybinding.filter-files", "ctrl+f, ctrl+slash")
|
|
// keybindings: layer view
|
|
viper.SetDefault("keybinding.compare-all", "ctrl+a")
|
|
viper.SetDefault("keybinding.compare-layer", "ctrl+l")
|
|
// keybindings: filetree view
|
|
viper.SetDefault("keybinding.toggle-collapse-dir", "space")
|
|
viper.SetDefault("keybinding.toggle-added-files", "ctrl+a")
|
|
viper.SetDefault("keybinding.toggle-removed-files", "ctrl+r")
|
|
viper.SetDefault("keybinding.toggle-modified-files", "ctrl+m")
|
|
viper.SetDefault("keybinding.toggle-unchanged-files", "ctrl+u")
|
|
viper.SetDefault("keybinding.page-up", "pgup")
|
|
viper.SetDefault("keybinding.page-down", "pgdn")
|
|
|
|
viper.SetDefault("diff.hide", "")
|
|
viper.SetDefault("layer.show-aggregated-changes", false)
|
|
|
|
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())
|
|
}
|
|
}
|
|
|
|
// initLogging sets up the logging object with a formatter and location
|
|
func initLogging() {
|
|
|
|
if viper.GetBool("log.enabled") == false {
|
|
log.SetOutput(ioutil.Discard)
|
|
}
|
|
|
|
logFileObj, err := os.OpenFile(viper.GetString("log.path"), os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0644)
|
|
if err != nil {
|
|
fmt.Fprintln(os.Stderr, err)
|
|
}
|
|
|
|
Formatter := new(log.TextFormatter)
|
|
Formatter.DisableTimestamp = true
|
|
log.SetFormatter(Formatter)
|
|
|
|
level, err := log.ParseLevel(viper.GetString("log.level"))
|
|
if err != nil {
|
|
fmt.Fprintln(os.Stderr, err)
|
|
}
|
|
log.SetLevel(level)
|
|
|
|
if err != nil {
|
|
fmt.Fprintln(os.Stderr, err)
|
|
} else {
|
|
log.SetOutput(logFileObj)
|
|
}
|
|
|
|
log.Debug("Starting Dive...")
|
|
}
|