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| Rev 3536 | Rev 3597 | ||
|---|---|---|---|
| Line 34... | Line 34... | ||
| 34 | import os |
34 | import os |
| 35 | import random |
35 | import random |
| 36 | import xstruct |
36 | import xstruct |
| 37 | import array |
37 | import array |
| 38 | 38 | ||
| - | 39 | exclude_names = set(['.svn']) |
|
| - | 40 | ||
| 39 | def align_up(size, alignment): |
41 | def align_up(size, alignment): |
| 40 | "Return size aligned up to alignment" |
42 | "Return size aligned up to alignment" |
| 41 | 43 | ||
| 42 | if (size % alignment == 0): |
44 | if (size % alignment == 0): |
| 43 | return size |
45 | return size |
| Line 51... | Line 53... | ||
| 51 | files = 2 |
53 | files = 2 |
| 52 | 54 | ||
| 53 | for name in os.listdir(root): |
55 | for name in os.listdir(root): |
| 54 | canon = os.path.join(root, name) |
56 | canon = os.path.join(root, name) |
| 55 | 57 | ||
| 56 | if (os.path.isfile(canon)): |
58 | if (os.path.isfile(canon) and (not name in exclude_names)): |
| 57 | size += align_up(os.path.getsize(canon), cluster_size) |
59 | size += align_up(os.path.getsize(canon), cluster_size) |
| 58 | files += 1 |
60 | files += 1 |
| 59 | 61 | ||
| 60 | if (os.path.isdir(canon)): |
62 | if (os.path.isdir(canon) and (not name in exclude_names)): |
| 61 | size += subtree_size(canon, cluster_size, dirent_size) |
63 | size += subtree_size(canon, cluster_size, dirent_size) |
| 62 | files += 1 |
64 | files += 1 |
| 63 | 65 | ||
| 64 | return size + align_up(files * dirent_size, cluster_size) |
66 | return size + align_up(files * dirent_size, cluster_size) |
| 65 | 67 | ||
| Line 284... | Line 286... | ||
| 284 | empty_cluster = 0 |
286 | empty_cluster = 0 |
| 285 | 287 | ||
| 286 | for name in os.listdir(root): |
288 | for name in os.listdir(root): |
| 287 | canon = os.path.join(root, name) |
289 | canon = os.path.join(root, name) |
| 288 | 290 | ||
| 289 | if (os.path.isfile(canon)): |
291 | if (os.path.isfile(canon) and (not name in exclude_names)): |
| 290 | rv = write_file(canon, outf, cluster_size, data_start, fat, reserved_clusters) |
292 | rv = write_file(canon, outf, cluster_size, data_start, fat, reserved_clusters) |
| 291 | directory.append(create_dirent(name, False, rv[0], rv[1])) |
293 | directory.append(create_dirent(name, False, rv[0], rv[1])) |
| 292 | 294 | ||
| 293 | if (os.path.isdir(canon)): |
295 | if (os.path.isdir(canon) and (not name in exclude_names)): |
| 294 | rv = recursion(False, canon, outf, cluster_size, root_start, data_start, fat, reserved_clusters, dirent_size, empty_cluster) |
296 | rv = recursion(False, canon, outf, cluster_size, root_start, data_start, fat, reserved_clusters, dirent_size, empty_cluster) |
| 295 | directory.append(create_dirent(name, True, rv[0], rv[1])) |
297 | directory.append(create_dirent(name, True, rv[0], rv[1])) |
| 296 | 298 | ||
| 297 | if (head): |
299 | if (head): |
| 298 | outf.seek(root_start) |
300 | outf.seek(root_start) |
| Line 349... | Line 351... | ||
| 349 | if (not os.path.isdir(path)): |
351 | if (not os.path.isdir(path)): |
| 350 | print "<PATH> must be a directory" |
352 | print "<PATH> must be a directory" |
| 351 | return |
353 | return |
| 352 | 354 | ||
| 353 | fat16_clusters = 4096 |
355 | fat16_clusters = 4096 |
| 354 | min_cluster_size = 1024 |
- | |
| 355 | 356 | ||
| 356 | sector_size = 512 |
357 | sector_size = 512 |
| 357 | cluster_size = 4096 |
358 | cluster_size = 4096 |
| 358 | dirent_size = 32 |
359 | dirent_size = 32 |
| 359 | fatent_size = 2 |
360 | fatent_size = 2 |
| Line 361... | Line 362... | ||
| 361 | reserved_clusters = 2 |
362 | reserved_clusters = 2 |
| 362 | 363 | ||
| 363 | # Make sure the filesystem is large enought for FAT16 |
364 | # Make sure the filesystem is large enought for FAT16 |
| 364 | size = subtree_size(path, cluster_size, dirent_size) + reserved_clusters * cluster_size |
365 | size = subtree_size(path, cluster_size, dirent_size) + reserved_clusters * cluster_size |
| 365 | while (size / cluster_size < fat16_clusters): |
366 | while (size / cluster_size < fat16_clusters): |
| 366 | if (cluster_size > min_cluster_size): |
367 | if (cluster_size > sector_size): |
| 367 | cluster_size /= 2 |
368 | cluster_size /= 2 |
| 368 | size = subtree_size(path, cluster_size, dirent_size) + reserved_clusters * cluster_size |
369 | size = subtree_size(path, cluster_size, dirent_size) + reserved_clusters * cluster_size |
| 369 | else: |
370 | else: |
| 370 | size = fat16_clusters * cluster_size + reserved_clusters * cluster_size |
371 | size = fat16_clusters * cluster_size + reserved_clusters * cluster_size |
| 371 | 372 | ||