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Make rebuild-index use the code in package repository

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This commit is contained in:
Alexander Neumann 2016-05-11 22:30:32 +02:00
parent 00139648a0
commit fa26ecc8f9
1 changed files with 2 additions and 98 deletions
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100
src/cmds/restic/cmd_rebuild_index.go
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@ -1,14 +1,6 @@
package main
import (
"fmt"
"os"
"restic/backend"
"restic/debug"
"restic/pack"
"restic/repository"
"restic/worker"
)
import "restic/repository"
type CmdRebuildIndex struct {
global *GlobalOptions
@ -26,94 +18,6 @@ func init() {
}
}
const rebuildIndexWorkers = 10
func loadBlobsFromPacks(repo *repository.Repository) (packs map[backend.ID][]pack.Blob) {
done := make(chan struct{})
defer close(done)
f := func(job worker.Job, done <-chan struct{}) (interface{}, error) {
return repo.ListPack(job.Data.(backend.ID))
}
jobCh := make(chan worker.Job)
resCh := make(chan worker.Job)
wp := worker.New(rebuildIndexWorkers, f, jobCh, resCh)
go func() {
for id := range repo.List(backend.Data, done) {
jobCh <- worker.Job{Data: id}
}
close(jobCh)
}()
packs = make(map[backend.ID][]pack.Blob)
for job := range resCh {
id := job.Data.(backend.ID)
if job.Error != nil {
fmt.Fprintf(os.Stderr, "error for pack %v: %v\n", id, job.Error)
continue
}
entries := job.Result.([]pack.Blob)
packs[id] = entries
}
wp.Wait()
return packs
}
func listIndexIDs(repo *repository.Repository) (list backend.IDs) {
done := make(chan struct{})
for id := range repo.List(backend.Index, done) {
list = append(list, id)
}
return list
}
func (cmd CmdRebuildIndex) rebuildIndex() error {
debug.Log("RebuildIndex.RebuildIndex", "start rebuilding index")
packs := loadBlobsFromPacks(cmd.repo)
cmd.global.Verbosef("loaded blobs from %d packs\n", len(packs))
idx := repository.NewIndex()
for packID, entries := range packs {
for _, entry := range entries {
pb := repository.PackedBlob{
ID: entry.ID,
Type: entry.Type,
Length: entry.Length,
Offset: entry.Offset,
PackID: packID,
}
idx.Store(pb)
}
}
oldIndexes := listIndexIDs(cmd.repo)
idx.AddToSupersedes(oldIndexes...)
cmd.global.Printf(" saving new index\n")
id, err := repository.SaveIndex(cmd.repo, idx)
if err != nil {
debug.Log("RebuildIndex.RebuildIndex", "error saving index: %v", err)
return err
}
debug.Log("RebuildIndex.RebuildIndex", "new index saved as %v", id.Str())
for _, indexID := range oldIndexes {
err := cmd.repo.Backend().Remove(backend.Index, indexID.String())
if err != nil {
cmd.global.Warnf("unable to remove index %v: %v\n", indexID.Str(), err)
}
}
return nil
}
func (cmd CmdRebuildIndex) Execute(args []string) error {
repo, err := cmd.global.OpenRepository()
if err != nil {
@ -127,5 +31,5 @@ func (cmd CmdRebuildIndex) Execute(args []string) error {
return err
}
return cmd.rebuildIndex()
return repository.RebuildIndex(repo)
}