pmdump.go

package main

import (
	"flag"
	"fmt"
	"os"

	"github.com/papermerge/pmdump/commands"
	"github.com/papermerge/pmdump/config"
)

const PMDUMP_VERSION = "0.4"

var configFile = flag.String("c", "", "path to config file")
var targetFile = flag.String("f", "", "Target file - zipped tar archive file name were to dump")
var version = flag.Bool("version", false, "show version and exit")

const exportYaml = "export.yaml"
const exportCommand = "export"
const importCommand = "import"

func main() {
	flag.Parse()

	flag.Usage = func() {
		w := flag.CommandLine.Output()

		fmt.Fprintf(
			w,
			"Usage: %s [-c config.yaml] [-f archive.tar.gz] export | import \n",
			os.Args[0],
		)

		flag.PrintDefaults()

		fmt.Fprintf(w, "For more details check: https://github.com/papermerge/pmdump\n")

	}

	args := flag.Args()

	if *version {
		fmt.Println(PMDUMP_VERSION)
		os.Exit(0)
	}

	if *configFile == "" {
		fmt.Fprintf(os.Stderr, "Missing configuration. Did you forget -c flag?\n")
		flag.Usage()
		os.Exit(1)
	}

	if *targetFile == "" {
		fmt.Fprintf(os.Stderr, "Missing target file. Did you forget -f flag?\n")
		flag.Usage()
		os.Exit(1)
	}

	settings, err := config.ReadConfig(*configFile)

	if err != nil {
		fmt.Fprintf(os.Stderr, "Error: %v\n", configFile, err)
		os.Exit(1)
	}

	if len(args) == 0 {
		fmt.Fprintf(os.Stderr, "Missing command: can be either %q or %q\n", exportCommand, importCommand)
		os.Exit(1)
	}

	if args[0] == exportCommand {
		commands.PerformExport(*settings, *targetFile, exportYaml)
	} else if args[0] == importCommand {
		commands.PerformImport(*settings, *targetFile, exportYaml)
	} else {
		fmt.Fprintf(
			os.Stderr,
			"Unknown command %q. Can be either %q or %q\n",
			args[0],
			exportCommand,
			importCommand,
		)
		os.Exit(1)
	}
}