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f6b4ffdc MW |
1 | #! @PYTHON@ |
2 | ### | |
3 | ### Efficiently construct canonical digests of filesystems | |
4 | ### | |
5 | ### (c) 2012 Mark Wooding | |
6 | ### | |
7 | ||
8 | ###----- Licensing notice --------------------------------------------------- | |
9 | ### | |
10 | ### This file is part of the `rsync-backup' program. | |
11 | ### | |
12 | ### rsync-backup is free software; you can redistribute it and/or modify | |
13 | ### it under the terms of the GNU General Public License as published by | |
14 | ### the Free Software Foundation; either version 2 of the License, or | |
15 | ### (at your option) any later version. | |
16 | ### | |
17 | ### rsync-backup is distributed in the hope that it will be useful, | |
18 | ### but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ### GNU General Public License for more details. | |
21 | ### | |
22 | ### You should have received a copy of the GNU General Public License | |
23 | ### along with rsync-backup; if not, write to the Free Software Foundation, | |
24 | ### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
25 | ||
26 | from sys import argv, exit, stdin, stdout, stderr | |
27 | import os as OS | |
28 | import re as RX | |
29 | import time as T | |
80d1feec | 30 | import errno as E |
f6b4ffdc MW |
31 | import stat as ST |
32 | import optparse as OP | |
33 | import hashlib as H | |
34 | import sqlite3 as DB | |
35 | import zlib as Z | |
36 | ||
37 | PACKAGE = '@PACKAGE@' | |
38 | VERSION = '@VERSION@' | |
39 | ||
40 | ###-------------------------------------------------------------------------- | |
41 | ### Utilities. | |
42 | ||
43 | QUIS = OS.path.basename(argv[0]) | |
44 | ||
45 | def moan(msg): | |
46 | stderr.write('%s: %s\n' % (QUIS, msg)) | |
47 | ||
48 | def die(msg, rc = 1): | |
49 | moan(msg) | |
50 | exit(rc) | |
51 | ||
52 | SYSERR = 0 | |
53 | def syserr(msg): | |
54 | global SYSERR | |
55 | moan(msg) | |
56 | SYSERR += 1 | |
57 | ||
58 | ###-------------------------------------------------------------------------- | |
59 | ### File system enumeration. | |
60 | ||
61 | class FileInfo (object): | |
62 | def __init__(me, file, st = None): | |
63 | me.name = file | |
64 | if st: | |
65 | me.st = st | |
66 | me.err = None | |
67 | else: | |
68 | try: | |
69 | me.st = OS.lstat(file) | |
70 | me.err = None | |
71 | except OSError, err: | |
72 | me.st = None | |
73 | me.err = err | |
74 | ||
75 | def enum_walk(file, func): | |
76 | ||
77 | def dirents(name): | |
78 | try: | |
79 | return OS.listdir(name) | |
80 | except OSError, err: | |
81 | syserr("failed to read directory `%s': %s" % (name, err.strerror)) | |
82 | return [] | |
83 | ||
84 | def dir(ee, dev): | |
85 | ff = [] | |
86 | dd = [] | |
87 | for e in ee: | |
88 | fi = FileInfo(e) | |
89 | if fi.st and fi.st.st_dev != dev: pass | |
90 | if fi.st and ST.S_ISDIR(fi.st.st_mode): dd.append(fi) | |
91 | else: ff.append(fi) | |
92 | ff.sort(key = lambda fi: fi.name) | |
93 | dd.sort(key = lambda fi: fi.name + '/') | |
94 | for f in ff: | |
95 | func(f) | |
96 | for d in dd: | |
97 | if d.st.st_dev == dev: | |
98 | func(d) | |
99 | dir([OS.path.join(d.name, e) for e in dirents(d.name)], dev) | |
100 | ||
101 | if file.endswith('/'): | |
ad7e8534 MW |
102 | cwd = OS.open('.', OS.O_RDONLY) |
103 | try: | |
104 | OS.chdir(file) | |
105 | fi = FileInfo('.') | |
106 | func(fi) | |
107 | dir(dirents('.'), fi.st.st_dev) | |
108 | finally: | |
109 | OS.fchdir(cwd) | |
110 | OS.close(cwd) | |
f6b4ffdc MW |
111 | else: |
112 | fi = FileInfo(file) | |
113 | func(fi) | |
114 | if fi.st and ST.S_ISDIR(fi.st.st_mode): | |
115 | dir([OS.path.join(fi.name, e) for e in dirents(fi.name)], | |
116 | fi.st.st_dev) | |
117 | ||
118 | def enum_find0(f, func): | |
119 | tail = "" | |
120 | while True: | |
121 | buf = f.read(8192) | |
122 | last = len(buf) == 0 | |
123 | names = (tail + buf).split('\0') | |
124 | tail = names.pop() | |
125 | for n in names: | |
126 | func(FileInfo(n)) | |
127 | if last: | |
128 | break | |
129 | if len(tail): | |
130 | moan("ignored trailing junk after last filename") | |
131 | ||
132 | RX_RSYNCESC = RX.compile(r'\\ \# ([0-7]{3})', RX.VERBOSE) | |
133 | def enum_rsync(f, func): | |
134 | ||
135 | ## The format is a little fiddly. Each line consists of PERMS SIZE DATE | |
136 | ## TIME NAME, separated by runs of whitespace, but the NAME starts exactly | |
137 | ## one space character after the TIME and may begin with a space. | |
138 | ## Sequences of the form `\#OOO' where OOO are three octal digits, stand | |
139 | ## for a byte with that value. Newlines and backslashes which would be | |
140 | ## ambiguous are converted into this form; all other characters are | |
141 | ## literal. | |
142 | ## | |
143 | ## We ignore the stat information and retrieve it ourselves, because it's | |
144 | ## incomplete. Hopefully the dcache is still warm. | |
145 | ||
146 | for line in f: | |
147 | if line.endswith('\n'): line = line[:-1] | |
148 | ||
149 | ## Extract the escaped name. | |
150 | ff = line.split(None, 3) | |
151 | if len(ff) != 4: | |
152 | syserr("ignoring invalid line from rsync: `%s'" % line) | |
153 | continue | |
154 | tail = ff[3] | |
155 | try: | |
156 | spc = tail.index(' ') | |
157 | except ValueError: | |
158 | syserr("ignoring invalid line from rsync: `%s'" % line) | |
159 | continue | |
160 | name = tail[spc + 1:] | |
161 | ||
162 | ## Now translate escape sequences. | |
163 | name = RX_RSYNCESC.sub(lambda m: chr(int(m.group(1), 8)), name) | |
164 | ||
165 | ## Call the client. | |
166 | try: | |
167 | fi = FileInfo(name) | |
168 | except OSError, err: | |
169 | syserr("failed to stat `%s': %s" % (name, err.strerror)) | |
170 | continue | |
171 | func(fi) | |
172 | ||
173 | ###-------------------------------------------------------------------------- | |
174 | ### The hash cache. | |
175 | ||
176 | class HashCache (object): | |
177 | ||
178 | VERSION = 0 | |
179 | BUFSZ = 128*1024 | |
180 | ||
181 | INIT = [ | |
182 | """CREATE TABLE meta ( | |
183 | version INTEGER NOT NULL, | |
184 | hash TEXT NOT NULL | |
185 | );""", | |
186 | """CREATE TABLE hash ( | |
187 | ino INTEGER PRIMARY KEY, | |
188 | mtime INTEGER NOT NULL, | |
189 | ctime INTEGER NOT NULL, | |
190 | size INTEGER NOT NULL, | |
191 | hash TEXT NOT NULL, | |
192 | seen BOOLEAN NOT NULL DEFAULT TRUE | |
193 | );""", | |
194 | """PRAGMA journal_mode = WAL;""" | |
195 | ] | |
196 | ||
197 | def __init__(me, file, hash = None): | |
198 | ||
199 | if file is None: | |
200 | ||
201 | ## We're going this alone, with no cache. | |
202 | db = None | |
203 | if hash is None: | |
204 | die("no hash specified and no database cache to read from") | |
205 | else: | |
206 | ||
207 | ## Connect to the database. | |
208 | db = DB.connect(file) | |
209 | db.text_factory = str | |
210 | ||
211 | ## See whether we can understand the cache database. | |
212 | c = db.cursor() | |
213 | v = h = None | |
214 | try: | |
215 | c.execute('SELECT version, hash FROM meta') | |
216 | v, h = c.fetchone() | |
217 | if c.fetchone() is not None: | |
218 | die("cache database corrupt: meta table has mutliple rows") | |
219 | except (DB.Error, TypeError): | |
220 | pass | |
221 | ||
222 | ## If that didn't work, we'd better clear the thing and start again. | |
223 | ## But only if we know how to initialize it. | |
224 | if v != me.VERSION: | |
225 | ||
226 | ## Explain the situation. | |
227 | moan("cache version %s not understood" % v) | |
228 | if hash is None: | |
229 | if h is None: | |
230 | die("can't initialize cache: no hash function set") | |
231 | else: | |
232 | hash = h | |
233 | try: | |
234 | H.new(hash) | |
235 | except Exception: | |
236 | die("unknown hash function `%s'" % hash) | |
237 | ||
238 | ## Drop old things. | |
239 | c.execute('SELECT type, name FROM sqlite_master') | |
240 | for type, name in c.fetchall(): | |
241 | c.execute('DROP %s IF EXISTS %s' % (type, name)) | |
242 | ||
243 | ## Now we're ready to go. | |
244 | for stmt in me.INIT: | |
245 | c.execute(stmt) | |
246 | c.execute('INSERT INTO meta VALUES (?, ?)', [me.VERSION, hash]) | |
247 | db.commit() | |
248 | ||
249 | ## Check the hash function if necessary. | |
250 | if hash is None: | |
251 | hash = h | |
252 | elif h is not None and h != hash: | |
253 | die("hash mismatch: cache uses %s but %s requested" % (h, hash)) | |
254 | ||
255 | ## All done. | |
256 | me.hash = hash | |
257 | me._db = db | |
258 | me._pend = 0 | |
259 | ||
260 | def hashfile(me, fi): | |
261 | ||
262 | ## If this isn't a proper file then don't try to hash it. | |
263 | if fi.err or not ST.S_ISREG(fi.st.st_mode): | |
264 | return None | |
265 | ||
266 | ## See whether there's a valid entry in the cache. | |
267 | if me._db: | |
268 | c = me._db.cursor() | |
269 | c.execute( | |
270 | 'SELECT mtime, size, hash, seen FROM hash WHERE ino = ?;', | |
271 | [fi.st.st_ino]) | |
272 | r = c.fetchone() | |
273 | if r is not None: | |
274 | mt, sz, h, s = r | |
275 | if mt == fi.st.st_mtime and \ | |
276 | sz == fi.st.st_size: | |
277 | if not s: | |
278 | c.execute('UPDATE hash SET seen = 1 WHERE ino = ?', | |
279 | [fi.st.st_ino]) | |
280 | me._update() | |
281 | return h | |
282 | ||
283 | ## Hash the file. Beware raciness: update the file information from the | |
284 | ## open descriptor, but set the size from what we actually read. | |
285 | h = H.new(me.hash) | |
286 | try: | |
287 | with open(fi.name, 'rb') as f: | |
288 | sz = 0 | |
289 | while True: | |
290 | buf = f.read(me.BUFSZ) | |
291 | if len(buf) == 0: | |
292 | break | |
293 | sz += len(buf) | |
294 | h.update(buf) | |
295 | fi.st = OS.fstat(f.fileno()) | |
296 | ##fi.st.st_size = sz | |
297 | hash = h.digest() | |
298 | except (OSError, IOError), err: | |
299 | fi.st = None | |
300 | fi.err = err | |
301 | return None | |
302 | hash = hash.encode('hex') | |
303 | ||
304 | ## Insert a record into the database. | |
305 | if me._db: | |
306 | c.execute(""" | |
307 | INSERT OR REPLACE INTO hash | |
308 | (ino, mtime, ctime, size, hash, seen) | |
309 | VALUES | |
310 | (?, ?, ?, ?, ?, 1); | |
311 | """, [fi.st.st_ino, | |
312 | fi.st.st_mtime, | |
313 | fi.st.st_ctime, | |
314 | fi.st.st_size, | |
315 | hash]) | |
316 | me._update() | |
317 | ||
318 | ## Done. | |
319 | return hash | |
320 | ||
321 | def _update(me): | |
322 | me._pend += 1 | |
323 | if me._pend >= 1024: | |
324 | me.flush() | |
325 | ||
326 | def flush(me): | |
327 | if me._db: | |
328 | me._db.commit() | |
329 | me._pend = 0 | |
330 | ||
331 | def need_db(me): | |
332 | if not me._db: | |
333 | die("no cache database") | |
334 | ||
80d1feec MW |
335 | def forget(me, ino): |
336 | me.need_db() | |
337 | c = me._db.cursor() | |
338 | c.execute('DELETE FROM hash WHERE ino = ?', [ino]) | |
339 | ||
f6b4ffdc MW |
340 | def reset(me): |
341 | me.need_db() | |
342 | c = me._db.cursor() | |
343 | c.execute('UPDATE hash SET seen = 0 WHERE seen') | |
344 | me.flush() | |
345 | ||
346 | def prune(me): | |
347 | me.need_db() | |
348 | c = me._db.cursor() | |
349 | c.execute('DELETE FROM hash WHERE NOT seen') | |
350 | me.flush() | |
351 | ||
352 | ###-------------------------------------------------------------------------- | |
353 | ### Printing output. | |
354 | ||
355 | class GenericFormatter (object): | |
356 | def __init__(me, fi): | |
357 | me.fi = fi | |
358 | def _fmt_time(me, t): | |
359 | tm = T.gmtime(t) | |
360 | return T.strftime('%Y-%m-%dT%H:%M:%SZ', tm) | |
361 | def _enc_name(me, n): | |
8aeb0c53 | 362 | return ' \\-> '.join(n.encode('string_escape').split(' -> ')) |
f6b4ffdc MW |
363 | def name(me): |
364 | return me._enc_name(me.fi.name) | |
365 | def info(me): | |
366 | return me.TYPE | |
367 | def mode(me): | |
368 | return '%06o' % me.fi.st.st_mode | |
369 | def size(me): | |
370 | return me.fi.st.st_size | |
371 | def mtime(me): | |
372 | return me._fmt_time(me.fi.st.st_mtime) | |
373 | def owner(me): | |
374 | return '%5d:%d' % (me.fi.st.st_uid, me.fi.st.st_gid) | |
375 | ||
376 | class ErrorFormatter (GenericFormatter): | |
377 | def info(me): | |
378 | return 'E%d %s' % (me.fi.err.errno, me.fi.err.strerror) | |
379 | def error(me): return 'error' | |
380 | mode = size = mtime = owner = error | |
381 | ||
382 | class SocketFormatter (GenericFormatter): | |
383 | TYPE = 'socket' | |
384 | class PipeFormatter (GenericFormatter): | |
385 | TYPE = 'fifo' | |
386 | ||
387 | class LinkFormatter (GenericFormatter): | |
388 | TYPE = 'symbolic-link' | |
389 | def name(me): | |
390 | n = GenericFormatter.name(me) | |
391 | try: | |
392 | d = OS.readlink(me.fi.name) | |
393 | return '%s -> %s' % (n, me._enc_name(d)) | |
394 | except OSError, err: | |
395 | return '%s -> <E%d %s>' % (n, err.errno, err.strerror) | |
396 | ||
397 | class DirectoryFormatter (GenericFormatter): | |
398 | TYPE = 'directory' | |
399 | def name(me): return GenericFormatter.name(me) + '/' | |
400 | def size(me): return 'dir' | |
401 | ||
402 | class DeviceFormatter (GenericFormatter): | |
403 | def info(me): | |
404 | return '%s %d:%d' % (me.TYPE, | |
405 | OS.major(me.fi.st.st_rdev), | |
406 | OS.minor(me.fi.st.st_rdev)) | |
407 | class BlockDeviceFormatter (DeviceFormatter): | |
408 | TYPE = 'block-device' | |
409 | class CharDeviceFormatter (DeviceFormatter): | |
410 | TYPE = 'character-device' | |
411 | ||
412 | class FileFormatter (GenericFormatter): | |
413 | TYPE = 'regular-file' | |
414 | ||
415 | class Reporter (object): | |
416 | ||
417 | TYMAP = { | |
418 | ST.S_IFSOCK: SocketFormatter, | |
419 | ST.S_IFDIR: DirectoryFormatter, | |
420 | ST.S_IFLNK: LinkFormatter, | |
421 | ST.S_IFREG: FileFormatter, | |
422 | ST.S_IFBLK: BlockDeviceFormatter, | |
423 | ST.S_IFCHR: CharDeviceFormatter, | |
424 | ST.S_IFIFO: PipeFormatter, | |
425 | } | |
426 | ||
427 | def __init__(me, db): | |
428 | me._inomap = {} | |
429 | me._vinomap = {} | |
430 | me._db = db | |
431 | me._hsz = int(H.new(db.hash).digest_size) | |
432 | ||
433 | def file(me, fi): | |
434 | h = me._db.hashfile(fi) | |
435 | if fi.err: | |
436 | fmt = ErrorFormatter(fi) | |
437 | vino = 'error' | |
438 | else: | |
439 | fmt = me.TYMAP[ST.S_IFMT(fi.st.st_mode)](fi) | |
440 | inoidx = fi.st.st_dev, fi.st.st_ino | |
441 | try: | |
442 | vino = me._inomap[inoidx] | |
443 | except KeyError: | |
444 | suffix = '' | |
445 | seq = 0 | |
446 | while True: | |
447 | vino = '%08x' % (Z.crc32(fi.name + suffix) & 0xffffffff) | |
448 | if vino not in me._vinomap: break | |
449 | suffix = '\0%d' % seq | |
450 | seq += 1 | |
451 | me._inomap[inoidx] = vino | |
452 | if h: info = h | |
453 | else: info = '[%-*s]' % (2*me._hsz - 2, fmt.info()) | |
454 | print '%s %8s %6s %-12s %-20s %20s %s' % ( | |
455 | info, vino, fmt.mode(), fmt.owner(), | |
456 | fmt.mtime(), fmt.size(), fmt.name()) | |
457 | ||
458 | ###-------------------------------------------------------------------------- | |
80d1feec MW |
459 | ### Database clearing from diff files. |
460 | ||
461 | R_HUNK = RX.compile(r'^@@ -\d+,(\d+) \+\d+,(\d+) @@$') | |
462 | ||
463 | def clear_entry(db, lno, line): | |
464 | ||
465 | good = True | |
466 | ||
467 | if line.startswith('['): | |
468 | pos = line.find(']') | |
469 | if pos < 0: | |
470 | moan("failed to parse file entry (type field; line %d)" % lno) | |
471 | return False | |
472 | ty = line[1:pos].strip() | |
473 | rest = line[pos + 1:] | |
474 | hash = None | |
475 | else: | |
476 | ff = line.split(None, 1) | |
477 | if len(ff) != 2: | |
478 | moan("failed to parse file entry (field split; line %d)" % lno) | |
479 | return False | |
480 | ty = 'regular-file' | |
481 | hash, rest = ff | |
482 | ||
483 | ff = rest.split(None, 5) | |
484 | if len(ff) != 6: | |
485 | moan("failed to parse file entry (field split; line %d)" % lno) | |
486 | return False | |
487 | ino, mode, uidgid, mtime, sz, name = ff | |
488 | ||
489 | if ty != 'symbolic-link': | |
490 | target = None | |
491 | else: | |
492 | nn = name.split(' -> ', 1) | |
493 | if len(nn) != 2: | |
494 | moan("failed to parse file entry (name split; line %d)" % lno) | |
495 | return False | |
496 | name, target = nn | |
497 | target = target.decode('string_escape') | |
498 | name = name.decode('string_escape') | |
499 | ||
500 | try: | |
501 | st = OS.lstat(name) | |
502 | except OSError, e: | |
503 | moan("failed to stat `%s': %s" % (name, e.strerror)) | |
504 | if e.errno != E.ENOENT: good = False | |
505 | else: | |
506 | print "Clear cache entry for `%s'" % name | |
507 | db.forget(st.st_ino) | |
508 | ||
509 | return good | |
510 | ||
511 | def clear_cache(db): | |
512 | ||
513 | ## Work through the input diff file one line at a time. | |
514 | diffstate = 'gap' | |
515 | lno = 0 | |
516 | good = True | |
517 | for line in stdin: | |
518 | if line.endswith('\n'): line = line[:-1] | |
519 | lno += 1 | |
520 | ||
521 | ## We're in a gap between hunks. Find a hunk header and extract the line | |
522 | ## counts. | |
523 | if diffstate == 'gap': | |
524 | m = R_HUNK.match(line) | |
525 | if m: | |
526 | oldlines = int(m.group(1)) | |
527 | newlines = int(m.group(2)) | |
528 | diffstate = 'hunk' | |
529 | hdrlno = lno | |
530 | ||
531 | ## We're in a hunk. Keep track of whether we've reached the end, and | |
532 | ## discard entries from the cache for mismatching lines. | |
533 | elif diffstate == 'hunk': | |
534 | if len(line) == 0: | |
535 | moan("empty line in diff hunk (line %d)" % lno) | |
536 | good = False | |
537 | ty = line[0] | |
538 | if ty == ' ': | |
539 | oldlines -= 1; newlines -= 1 | |
540 | elif ty == '+': | |
541 | newlines -= 1 | |
542 | if not clear_entry(db, lno, line[1:]): good = False | |
543 | elif ty == '-': | |
544 | oldlines -= 1 | |
545 | if not clear_entry(db, lno, line[1:]): good = False | |
546 | else: | |
547 | moan("incomprehensible line in diff hunk (line %d)" % lno) | |
548 | good = false | |
549 | if oldlines < 0 or newlines < 0: | |
550 | moan("inconsistent lengths in diff hunk header (line %d)" % hdrlno) | |
551 | good = False | |
552 | if oldlines == newlines == 0: | |
553 | diffstate = 'gap' | |
554 | ||
555 | if diffstate == 'hunk': | |
556 | moan("truncated diff hunk (started at line %d)" % hdrlno) | |
557 | good = False | |
558 | ||
559 | return good | |
560 | ||
561 | ###-------------------------------------------------------------------------- | |
f6b4ffdc MW |
562 | ### Main program. |
563 | ||
564 | FMTMAP = { | |
565 | 'rsync': lambda f: enum_rsync(stdin, f), | |
566 | 'find0': lambda f: enum_find0(stdin, f) | |
567 | } | |
568 | op = OP.OptionParser( | |
80d1feec | 569 | usage = '%prog [-au] [-c CACHE] [-f FORMAT] [-H HASH] [FILE ...]', |
f6b4ffdc MW |
570 | version = '%%prog, version %s' % VERSION, |
571 | description = '''\ | |
572 | Print a digest of a filesystem (or a collection of specified files) to | |
573 | standard output. The idea is that the digest should be mostly /complete/ | |
574 | (i.e., any `interesting\' change to the filesystem results in a different | |
575 | digest) and /canonical/ (i.e., identical filesystem contents result in | |
576 | identical output). | |
577 | ''') | |
578 | ||
579 | for short, long, props in [ | |
580 | ('-a', '--all', { 'action': 'store_true', 'dest': 'all', | |
581 | 'help': 'clear cache of all files not seen' }), | |
582 | ('-c', '--cache', { 'dest': 'cache', 'metavar': 'FILE', | |
583 | 'help': 'use FILE as a cache for file hashes' }), | |
584 | ('-f', '--files', { 'dest': 'files', 'metavar': 'FORMAT', | |
585 | 'type': 'choice', 'choices': FMTMAP.keys(), | |
586 | 'help': 'read files to report in the given FORMAT' }), | |
80d1feec MW |
587 | ('-u', '--udiff', { 'action': 'store_true', 'dest': 'udiff', |
588 | 'help': 'read diff from stdin, clear cache entries' }), | |
f6b4ffdc MW |
589 | ('-H', '--hash', { 'dest': 'hash', 'metavar': 'HASH', |
590 | ##'type': 'choice', 'choices': H.algorithms, | |
591 | 'help': 'use HASH as the hash function' })]: | |
592 | op.add_option(short, long, **props) | |
593 | opts, args = op.parse_args(argv) | |
594 | ||
80d1feec MW |
595 | if opts.udiff: |
596 | if opts.cache is None or opts.all or opts.files or len(args) > 2: | |
597 | die("incompatible options: `-u' requires `-c CACHE', forbids others") | |
598 | db = HashCache(opts.cache, opts.hash) | |
599 | if len(args) == 2: OS.chdir(args[1]) | |
600 | good = True | |
601 | if not clear_cache(db): good = False | |
602 | if good: db.flush() | |
603 | else: exit(2) | |
604 | else: | |
605 | if not opts.files and len(args) <= 1: | |
606 | die("no filename sources: nothing to do") | |
607 | db = HashCache(opts.cache, opts.hash) | |
608 | if opts.all: | |
609 | db.reset() | |
610 | rep = Reporter(db) | |
611 | if opts.files: | |
612 | FMTMAP[opts.files](rep.file) | |
613 | for dir in args[1:]: | |
614 | enum_walk(dir, rep.file) | |
615 | if opts.all: | |
616 | db.prune() | |
617 | db.flush() | |
f6b4ffdc MW |
618 | |
619 | ###----- That's all, folks -------------------------------------------------- |