| 61 | } |
| 62 | |
| 63 | func enumerateDataFileIDs(dir string) (userIDs []int64, mergeIDs []int64, err error) { |
| 64 | entries, err := os.ReadDir(dir) |
| 65 | if err != nil { |
| 66 | return nil, nil, err |
| 67 | } |
| 68 | for _, entry := range entries { |
| 69 | if entry.IsDir() { |
| 70 | continue |
| 71 | } |
| 72 | name := entry.Name() |
| 73 | if !strings.HasSuffix(name, DataSuffix) { |
| 74 | continue |
| 75 | } |
| 76 | base := strings.TrimSuffix(name, DataSuffix) |
| 77 | if seq, ok := parseMergeSeq(base); ok { |
| 78 | mergeIDs = append(mergeIDs, GetMergeFileID(seq)) |
| 79 | continue |
| 80 | } |
| 81 | id, err := strconv.ParseInt(base, 10, 64) |
| 82 | if err != nil { |
| 83 | continue |
| 84 | } |
| 85 | userIDs = append(userIDs, id) |
| 86 | } |
| 87 | sort.Slice(userIDs, func(i, j int) bool { return userIDs[i] < userIDs[j] }) |
| 88 | sort.Slice(mergeIDs, func(i, j int) bool { return mergeIDs[i] < mergeIDs[j] }) |
| 89 | return userIDs, mergeIDs, nil |
| 90 | } |
| 91 | |
| 92 | func purgeMergeFiles(dir string, keep map[int64]struct{}) error { |
| 93 | _, mergeIDs, err := enumerateDataFileIDs(dir) |