177 lines
3.1 KiB
Go
177 lines
3.1 KiB
Go
// +build debug
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package main
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import (
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"encoding/json"
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"fmt"
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"io"
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"os"
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"github.com/juju/errors"
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"github.com/restic/restic"
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"github.com/restic/restic/backend"
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"github.com/restic/restic/pack"
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"github.com/restic/restic/repository"
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)
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type CmdDump struct {
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global *GlobalOptions
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repo *repository.Repository
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}
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func init() {
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_, err := parser.AddCommand("dump",
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"dump data structures",
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"The dump command dumps data structures from a repository as JSON documents",
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&CmdDump{global: &globalOpts})
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if err != nil {
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panic(err)
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}
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}
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func (cmd CmdDump) Usage() string {
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return "[indexes|snapshots|trees|all]"
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}
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func prettyPrintJSON(wr io.Writer, item interface{}) error {
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buf, err := json.MarshalIndent(item, "", " ")
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if err != nil {
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return err
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}
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_, err = wr.Write(append(buf, '\n'))
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return err
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}
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func printSnapshots(repo *repository.Repository, wr io.Writer) error {
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done := make(chan struct{})
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defer close(done)
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for id := range repo.List(backend.Snapshot, done) {
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snapshot, err := restic.LoadSnapshot(repo, id)
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if err != nil {
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fmt.Fprintf(os.Stderr, "LoadSnapshot(%v): %v", id.Str(), err)
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continue
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}
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fmt.Fprintf(wr, "snapshot_id: %v\n", id)
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err = prettyPrintJSON(wr, snapshot)
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if err != nil {
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return err
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}
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}
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return nil
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}
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func printTrees(repo *repository.Repository, wr io.Writer) error {
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done := make(chan struct{})
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defer close(done)
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trees := []backend.ID{}
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for _, idx := range repo.Index().All() {
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for blob := range idx.Each(nil) {
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if blob.Type != pack.Tree {
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continue
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}
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trees = append(trees, blob.ID)
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}
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}
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for _, id := range trees {
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tree, err := restic.LoadTree(repo, id)
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if err != nil {
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fmt.Fprintf(os.Stderr, "LoadTree(%v): %v", id.Str(), err)
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continue
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}
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fmt.Fprintf(wr, "tree_id: %v\n", id)
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prettyPrintJSON(wr, tree)
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}
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return nil
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}
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func (cmd CmdDump) DumpIndexes() error {
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done := make(chan struct{})
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defer close(done)
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for id := range cmd.repo.List(backend.Index, done) {
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fmt.Printf("index_id: %v\n", id)
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idx, err := repository.LoadIndex(cmd.repo, id.String())
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if err != nil {
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return err
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}
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err = idx.Dump(os.Stdout)
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if err != nil {
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return err
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}
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}
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return nil
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}
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func (cmd CmdDump) Execute(args []string) error {
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if len(args) != 1 {
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return fmt.Errorf("type not specified, Usage: %s", cmd.Usage())
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}
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repo, err := cmd.global.OpenRepository()
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if err != nil {
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return err
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}
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cmd.repo = repo
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lock, err := lockRepo(repo)
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defer unlockRepo(lock)
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if err != nil {
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return err
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}
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err = repo.LoadIndex()
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if err != nil {
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return err
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}
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tpe := args[0]
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switch tpe {
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case "indexes":
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return cmd.DumpIndexes()
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case "snapshots":
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return printSnapshots(repo, os.Stdout)
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case "trees":
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return printTrees(repo, os.Stdout)
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case "all":
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fmt.Printf("snapshots:\n")
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err := printSnapshots(repo, os.Stdout)
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if err != nil {
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return err
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}
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fmt.Printf("\ntrees:\n")
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err = printTrees(repo, os.Stdout)
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if err != nil {
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return err
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}
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fmt.Printf("\nindexes:\n")
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err = cmd.DumpIndexes()
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if err != nil {
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return err
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}
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return nil
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default:
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return errors.Errorf("no such type %q", tpe)
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}
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}
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