package main import ( "log" "os" "path" "code.google.com/p/weed-fs/go/storage" "strconv" ) func init() { cmdFix.Run = runFix // break init cycle cmdFix.IsDebug = cmdFix.Flag.Bool("debug", false, "enable debug mode") } var cmdFix = &Command{ UsageLine: "fix -dir=/tmp -volumeId=234", Short: "run weed tool fix on index file if corrupted", Long: `Fix runs the WeedFS fix command to re-create the index .idx file. `, } var ( fixVolumePath = cmdFix.Flag.String("dir", "/tmp", "data directory to store files") fixVolumeId = cmdFix.Flag.Int("volumeId", -1, "a volume id. The volume should already exist in the dir. The volume index file should not exist.") ) func runFix(cmd *Command, args []string) bool { if *fixVolumeId == -1 { return false } fileName := strconv.Itoa(*fixVolumeId) indexFile, err := os.OpenFile(path.Join(*fixVolumePath, fileName+".idx"), os.O_WRONLY|os.O_CREATE, 0644) if err != nil { log.Fatalf("Create Volume Index [ERROR] %s\n", err) } defer indexFile.Close() nm := storage.NewNeedleMap(indexFile) defer nm.Close() vid := storage.VolumeId(*fixVolumeId) err = storage.ScanVolumeFile(*fixVolumePath, vid, func(superBlock storage.SuperBlock) error { return nil }, func(n *storage.Needle, offset uint32) error { debug("key", n.Id, "offset", offset, "size", n.Size, "disk_size", n.DiskSize(), "gzip", n.IsGzipped()) if n.Size > 0 { count, pe := nm.Put(n.Id, offset/storage.NeedlePaddingSize, n.Size) debug("saved", count, "with error", pe) } else { debug("skipping deleted file ...") nm.Delete(n.Id) } return nil }) if err != nil { log.Fatalf("Export Volume File [ERROR] %s\n", err) } return true }