func (cmd CmdRebuildIndex) RebuildIndex() error {
debug.Log("RebuildIndex.RebuildIndex", "start")
done := make(chan struct{})
defer close(done)
indexIDs := backend.NewIDSet()
for id := range cmd.repo.List(backend.Index, done) {
indexIDs.Insert(id)
}
cmd.global.Printf("rebuilding index from %d indexes\n", len(indexIDs))
debug.Log("RebuildIndex.RebuildIndex", "found %v indexes", len(indexIDs))
combinedIndex := repository.NewIndex()
packsDone := backend.NewIDSet()
type Blob struct {
id backend.ID
tpe pack.BlobType
}
blobsDone := make(map[Blob]struct{})
i := 0
for indexID := range indexIDs {
cmd.global.Printf(" loading index %v\n", i)
debug.Log("RebuildIndex.RebuildIndex", "load index %v", indexID.Str())
idx, err := repository.LoadIndex(cmd.repo, indexID.String())
if err != nil {
return err
}
debug.Log("RebuildIndex.RebuildIndex", "adding blobs from index %v", indexID.Str())
for packedBlob := range idx.Each(done) {
packsDone.Insert(packedBlob.PackID)
b := Blob{
id: packedBlob.ID,
tpe: packedBlob.Type,
}
if _, ok := blobsDone[b]; ok {
continue
}
blobsDone[b] = struct{}{}
combinedIndex.Store(packedBlob)
}
combinedIndex.AddToSupersedes(indexID)
if repository.IndexFull(combinedIndex) {
combinedIndex, err = cmd.storeIndex(combinedIndex)
if err != nil {
return err
}
}
i++
}
var err error
if combinedIndex.Length() > 0 {
combinedIndex, err = cmd.storeIndex(combinedIndex)
if err != nil {
return err
}
}
cmd.global.Printf("removing %d old indexes\n", len(indexIDs))
for id := range indexIDs {
debug.Log("RebuildIndex.RebuildIndex", "remove index %v", id.Str())
err := cmd.repo.Backend().Remove(backend.Index, id.String())
if err != nil {
debug.Log("RebuildIndex.RebuildIndex", "error removing index %v: %v", id.Str(), err)
return err
}
}
cmd.global.Printf("checking for additional packs\n")
newPacks := 0
for packID := range cmd.repo.List(backend.Data, done) {
if packsDone.Has(packID) {
continue
}
debug.Log("RebuildIndex.RebuildIndex", "pack %v not indexed", packID.Str())
newPacks++
rd, err := cmd.repo.Backend().GetReader(backend.Data, packID.String(), 0, 0)
if err != nil {
debug.Log("RebuildIndex.RebuildIndex", "GetReader returned error: %v", err)
return err
}
var readSeeker io.ReadSeeker
if r, ok := rd.(io.ReadSeeker); ok {
debug.Log("RebuildIndex.RebuildIndex", "reader is seekable")
readSeeker = r
} else {
debug.Log("RebuildIndex.RebuildIndex", "reader is not seekable, loading contents to ram")
buf, err := ioutil.ReadAll(rd)
if err != nil {
return err
}
readSeeker = bytes.NewReader(buf)
}
up, err := pack.NewUnpacker(cmd.repo.Key(), readSeeker)
if err != nil {
debug.Log("RebuildIndex.RebuildIndex", "error while unpacking pack %v", packID.Str())
return err
}
for _, blob := range up.Entries {
debug.Log("RebuildIndex.RebuildIndex", "pack %v: blob %v", packID.Str(), blob)
combinedIndex.Store(repository.PackedBlob{
Type: blob.Type,
ID: blob.ID,
PackID: packID,
Offset: blob.Offset,
Length: blob.Length,
})
}
err = rd.Close()
debug.Log("RebuildIndex.RebuildIndex", "error closing reader for pack %v: %v", packID.Str(), err)
if repository.IndexFull(combinedIndex) {
combinedIndex, err = cmd.storeIndex(combinedIndex)
if err != nil {
return err
}
}
}
if combinedIndex.Length() > 0 {
combinedIndex, err = cmd.storeIndex(combinedIndex)
if err != nil {
return err
}
}
cmd.global.Printf("added %d packs to the index\n", newPacks)
debug.Log("RebuildIndex.RebuildIndex", "done")
return nil
}
func (cmd CmdRebuildIndex) RebuildIndex() error {
debug.Log("RebuildIndex.RebuildIndex", "start")
done := make(chan struct{})
defer close(done)
indexIDs := backend.NewIDSet()
for id := range cmd.repo.List(backend.Index, done) {
indexIDs.Insert(id)
}
cmd.global.Printf("rebuilding index from %d indexes\n", len(indexIDs))
debug.Log("RebuildIndex.RebuildIndex", "found %v indexes", len(indexIDs))
combinedIndex := repository.NewIndex()
packsDone := backend.NewIDSet()
type Blob struct {
id backend.ID
tpe pack.BlobType
}
blobsDone := make(map[Blob]struct{})
i := 0
for indexID := range indexIDs {
cmd.global.Printf(" loading index %v\n", i)
debug.Log("RebuildIndex.RebuildIndex", "load index %v", indexID.Str())
idx, err := repository.LoadIndex(cmd.repo, indexID.String())
if err != nil {
return err
}
debug.Log("RebuildIndex.RebuildIndex", "adding blobs from index %v", indexID.Str())
for packedBlob := range idx.Each(done) {
packsDone.Insert(packedBlob.PackID)
b := Blob{
id: packedBlob.ID,
tpe: packedBlob.Type,
}
if _, ok := blobsDone[b]; ok {
continue
}
blobsDone[b] = struct{}{}
combinedIndex.Store(packedBlob)
}
combinedIndex.AddToSupersedes(indexID)
if repository.IndexFull(combinedIndex) {
combinedIndex, err = cmd.storeIndex(combinedIndex)
if err != nil {
return err
}
}
i++
}
var err error
if combinedIndex.Length() > 0 {
combinedIndex, err = cmd.storeIndex(combinedIndex)
if err != nil {
return err
}
}
cmd.global.Printf("removing %d old indexes\n", len(indexIDs))
for id := range indexIDs {
debug.Log("RebuildIndex.RebuildIndex", "remove index %v", id.Str())
err := cmd.repo.Backend().Remove(backend.Index, id.String())
if err != nil {
debug.Log("RebuildIndex.RebuildIndex", "error removing index %v: %v", id.Str(), err)
return err
}
}
cmd.global.Printf("checking for additional packs\n")
newPacks := 0
var buf []byte
for packID := range cmd.repo.List(backend.Data, done) {
if packsDone.Has(packID) {
continue
}
debug.Log("RebuildIndex.RebuildIndex", "pack %v not indexed", packID.Str())
newPacks++
var err error
h := backend.Handle{Type: backend.Data, Name: packID.String()}
buf, err = backend.LoadAll(cmd.repo.Backend(), h, buf)
if err != nil {
debug.Log("RebuildIndex.RebuildIndex", "error while loading pack %v", packID.Str())
return fmt.Errorf("error while loading pack %v: %v", packID.Str(), err)
}
hash := backend.Hash(buf)
if !hash.Equal(packID) {
debug.Log("RebuildIndex.RebuildIndex", "Pack ID does not match, want %v, got %v", packID.Str(), hash.Str())
return fmt.Errorf("Pack ID does not match, want %v, got %v", packID.Str(), hash.Str())
}
up, err := pack.NewUnpacker(cmd.repo.Key(), bytes.NewReader(buf))
if err != nil {
debug.Log("RebuildIndex.RebuildIndex", "error while unpacking pack %v", packID.Str())
return err
}
for _, blob := range up.Entries {
debug.Log("RebuildIndex.RebuildIndex", "pack %v: blob %v", packID.Str(), blob)
combinedIndex.Store(repository.PackedBlob{
Type: blob.Type,
ID: blob.ID,
PackID: packID,
Offset: blob.Offset,
Length: blob.Length,
})
}
if repository.IndexFull(combinedIndex) {
combinedIndex, err = cmd.storeIndex(combinedIndex)
if err != nil {
return err
}
}
}
if combinedIndex.Length() > 0 {
combinedIndex, err = cmd.storeIndex(combinedIndex)
if err != nil {
return err
}
}
cmd.global.Printf("added %d packs to the index\n", newPacks)
debug.Log("RebuildIndex.RebuildIndex", "done")
return nil
}