| 83 | } |
| 84 | |
| 85 | func generateOneFile(fd io.ReadSeeker, p1 string, s int64, t0 time.Time) error { |
| 86 | src := io.LimitReader(&infiniteReader{fd}, int64(s)) |
| 87 | dst, err := os.Create(p1) |
| 88 | if err != nil { |
| 89 | return err |
| 90 | } |
| 91 | |
| 92 | _, err = io.Copy(dst, src) |
| 93 | if err != nil { |
| 94 | return err |
| 95 | } |
| 96 | |
| 97 | err = dst.Close() |
| 98 | if err != nil { |
| 99 | return err |
| 100 | } |
| 101 | |
| 102 | os.Chmod(p1, os.FileMode(rand.Intn(0o777)|0o400)) |
| 103 | |
| 104 | t := t0.Add(-time.Duration(rand.Intn(30*86400)) * time.Second) |
| 105 | err = os.Chtimes(p1, t, t) |
| 106 | if err != nil { |
| 107 | return err |
| 108 | } |
| 109 | |
| 110 | return nil |
| 111 | } |
| 112 | |
| 113 | func alterFiles(dir string) error { |
| 114 | err := filepath.Walk(dir, func(path string, info os.FileInfo, err error) error { |