forked from TrueCloudLab/restic
111 lines
2.2 KiB
Go
111 lines
2.2 KiB
Go
package main
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import (
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"fmt"
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"log"
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"os"
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"sort"
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"strings"
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"code.google.com/p/go.crypto/ssh/terminal"
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"github.com/fd0/khepri"
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"github.com/fd0/khepri/backend"
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"github.com/jessevdk/go-flags"
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)
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var Opts struct {
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Repo string `short:"r" long:"repo" description:"Repository directory to backup to/restore from"`
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}
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func errx(code int, format string, data ...interface{}) {
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if len(format) > 0 && format[len(format)-1] != '\n' {
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format += "\n"
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}
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fmt.Fprintf(os.Stderr, format, data...)
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os.Exit(code)
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}
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type commandFunc func(backend.Server, *khepri.Key, []string) error
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var commands map[string]commandFunc
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func read_password(prompt string) string {
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p := os.Getenv("KHEPRI_PASSWORD")
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if p != "" {
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return p
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}
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fmt.Print(prompt)
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pw, err := terminal.ReadPassword(int(os.Stdin.Fd()))
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if err != nil {
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errx(2, "unable to read password: %v", err)
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}
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fmt.Println()
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return string(pw)
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}
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func init() {
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commands = make(map[string]commandFunc)
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commands["backup"] = commandBackup
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commands["restore"] = commandRestore
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commands["list"] = commandList
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commands["snapshots"] = commandSnapshots
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}
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func main() {
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log.SetOutput(os.Stdout)
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Opts.Repo = os.Getenv("KHEPRI_REPOSITORY")
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if Opts.Repo == "" {
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Opts.Repo = "khepri-backup"
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}
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args, err := flags.Parse(&Opts)
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if e, ok := err.(*flags.Error); ok && e.Type == flags.ErrHelp {
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os.Exit(0)
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}
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if len(args) == 0 {
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cmds := []string{"init"}
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for k := range commands {
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cmds = append(cmds, k)
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}
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sort.Strings(cmds)
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fmt.Printf("nothing to do, available commands: [%v]\n", strings.Join(cmds, "|"))
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os.Exit(0)
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}
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cmd := args[0]
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if cmd == "init" {
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err = commandInit(Opts.Repo)
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if err != nil {
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errx(1, "error executing command %q: %v", cmd, err)
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}
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return
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}
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f, ok := commands[cmd]
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if !ok {
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errx(1, "unknown command: %q\n", cmd)
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}
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// read_password("enter password: ")
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repo, err := backend.OpenLocal(Opts.Repo)
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if err != nil {
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errx(1, "unable to open repo: %v", err)
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}
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key, err := khepri.SearchKey(repo, read_password("Enter Password for Repository: "))
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if err != nil {
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errx(2, "unable to open repo: %v", err)
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}
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err = f(repo, key, args[1:])
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if err != nil {
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errx(1, "error executing command %q: %v", cmd, err)
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}
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}
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