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path: root/steam-export-cli.go
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package main

import (
	"errors"
	"flag"
	"fmt"
	"os"

	"git.riedstra.us/mitch/steam-export/config"
	"git.riedstra.us/mitch/steam-export/steam"
)

var (
	errorHandling flag.ErrorHandling = flag.ExitOnError

	steamLib *steam.Library = &steam.Library{}
)

func parseArgs(args []string) error {
	if len(args) < 2 {
		return errors.New("Not enough arguments")
	}
	aa := args[2:]
	switch a := args[1]; a {
	case "list":
		return listGames(aa)
	case "package":
		return packageGame(aa)
	case "extract":
		return extractGame(aa)
	case "delete":
		return deleteGame(aa)
	case "edit-config":
		return editConfig(aa)
	default:
		printHelp()
	}

	return nil
}

func printHelp() {
	fmt.Printf(`---
Program usage:
steam-export-cli $subcommand $options
Subcommands:
	list -l $steam_library
	package -l $steam_library -f $output_file -g $game_index
	extract -l $steam_library -f $input_file
	delete -l $steam_library -g $game_index 
	server -c $config_file -l $steam_library -L $listen_addr
	edit-config [ -e $editor ]
`)

}

func editConfig(args []string) error {
	fl := flag.NewFlagSet("edit-config", errorHandling)
	e := fl.String("e", "", "Editor to invoke")
	if err := fl.Parse(args); err != nil {
		return err
	}
	return config.EditDefaultConfig(*e)
}

func listGames(args []string) error {
	fl := flag.NewFlagSet("list", errorHandling)
	lib := fl.String("l", steam.DefaultLib,
		"Path to library in question. All the way to the 'steamapps' folder")

	l := steam.DefaultLib
	fl.Parse(args)
	if fl.Parsed() {
		l = string(*lib)
	}

	if err := steamLib.ProcessLibrary(l); err != nil {
		return err
	}

	fmt.Println(steamLib)

	return nil
}

func packageGame(args []string) error {
	fl := flag.NewFlagSet("package", errorHandling)
	lib := fl.String("l", steam.DefaultLib,
		"Path to library in question. All the way to the 'steamapps' folder")
	fileName := fl.String("f", "export",
		"Name of the archive file to be created. Please do not include the file extension")
	game := fl.Int("g", -1,
		"Index of the game to be exported. Please see `list` for the index")
	compress := fl.String("z", "gz",
		"Compression type. Default 'gz' '' is no compression")

	var g int
	l := steam.DefaultLib
	fl.Parse(args)
	if fl.Parsed() {
		l = string(*lib)
		g = int(*game)
	}

	if err := steamLib.ProcessLibrary(l); err != nil {
		return err
	}

	if len(steamLib.Games) < g || g == -1 {
		return errors.New("Cannot find game for index provided or no index provided")
	}

	if *fileName == "export" {
		fileName = &steamLib.Games[g]
	}

	switch *compress {
	case "gz":
		return steamLib.PackageGameToFile(g, *fileName+".tar.gz", *compress)
	default:
		return steamLib.PackageGameToFile(g, *fileName+".tar", *compress)
	}

}

func extractGame(args []string) error {
	fl := flag.NewFlagSet("extract", errorHandling)
	lib := fl.String("l", steam.DefaultLib,
		"Path to library in question. All the way to the 'steamapps' folder")
	fileName := fl.String("f", "",
		"Name of the archive file to be extracted. Please include the file extension")
	compress := fl.String("z", "gz",
		"Compression type. Default 'gz' '' is no compression")

	l := steam.DefaultLib
	fl.Parse(args)
	if fl.Parsed() {
		l = string(*lib)
	}

	if err := steamLib.ProcessLibrary(l); err != nil {
		return err
	}

	if *fileName == "" {
		return errors.New("No filename provided")
	}

	return steamLib.ExtractGameFromFile(*fileName, *compress)

}

func deleteGame(args []string) error {
	fl := flag.NewFlagSet("delete", errorHandling)
	lib := fl.String("l", steam.DefaultLib,
		"Path to library in question. All the way to the 'steamapps' folder")
	game := fl.Int("g", -1,
		"Index of the game to be deleted. Please see `list` for the index")

	var g int
	l := steam.DefaultLib
	fl.Parse(args)
	if fl.Parsed() {
		l = string(*lib)
		g = int(*game)
	}

	if err := steamLib.ProcessLibrary(l); err != nil {
		return err
	}

	if len(steamLib.Games) < g || g == -1 {
		return errors.New("Cannot find game for index provided or no index provided")
	}

	return steamLib.DeleteGame(g)
}

func main() {
	config, err := config.LoadConfig()
	if err != nil {
		fmt.Println(err)
	} else {
		if config.DefaultRepository != "" {
			steam.DefaultLib = config.DefaultRepository
		}
	}

	if err := parseArgs(os.Args); err != nil {
		fmt.Fprintln(os.Stderr, err)
		printHelp()
	}
}