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- Committer: Martin Pool
- Date: 2005-05-17 06:51:31 UTC
- Revision ID: mbp@sourcefrog.net-20050517065131-96113900760a324f
doc
- files added:
- bzrlib/statcache.py
- files removed:
- HACKING
- bzrlib/plugins
- bzrlib/selftest
- bzrlib/util
- bzrlib/util/effbot
- bzrlib/util/effbot/org
- contrib/emacs
- patches
- tools
- files renamed:
- contrib/bash/bzr.simple => contrib/bash/bzr
- bzrlib/util/elementtree/ => elementtree/
- bzrlib/util/urlgrabber/ => urlgrabber/
- files modified:
- .bzrignore
added
removed
patches/symlink-support.patch
1
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id 63F83542FF; Sat, 14 May 2005 22:28:37 +0200 (CEST)
10
To: Martin Pool <mbp@sourcefrog.net>
11
Subject: [PATCH] symlink support patch
12
From: Erik Toubro Nielsen <erik@tntech.dk>
13
Date: Sat, 14 May 2005 22:28:37 +0200
14
Message-ID: <86u0l57dsa.fsf@upstroke.tntech.dk>
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User-Agent: Gnus/5.1006 (Gnus v5.10.6) XEmacs/21.4 (Security Through
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Obscurity, linux)
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Content-Type: multipart/mixed; boundary="=-=-="
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Content-Length: 19688
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Lines: 604
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--=-=-=
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28
I'm not sending this to the list as it is pretty large.
29
30
Let me know if its usefull and if I should rework anything.
31
32
Erik
33
34
35
Overview:
36
37
(Bugfix: in class TreeDelta I've moved kind= one level up, since
38
kind is also used in the else part)
39
40
Since both the InventoryEntry and stat cache is changed, perhaps
41
the branch format number should be increased?
42
43
Added test cases for symlinks to testbzr
44
45
Cannot use realpath since it expands path/L to path/LinkTarget
46
Cannot use exists, use new osutils.lexists
47
48
I'm overloading the text_modified to signify that a link
49
target is changed. Perhaps text_modified should be renamed
50
content_modified?
51
52
InventoryEntry has a new member "symlink_target",
53
54
The stat cache entry has been extended to contain the symlink
55
target and the st_mode. I try to ignore an old format cache
56
file.
57
58
59
60
--=-=-=
61
Content-Type: text/x-patch
62
Content-Disposition: inline; filename=symlinksupport.patch
63
64
*** modified file 'bzrlib/add.py'
65
--- bzrlib/add.py
66
+++ bzrlib/add.py
67
@@ -38,7 +38,7 @@
68
for f in file_list:
69
kind = bzrlib.osutils.file_kind(f)
70
71
- if kind != 'file' and kind != 'directory':
72
+ if kind != 'file' and kind != 'directory' and kind != 'symlink':
73
if f not in user_list:
74
print "Skipping %s (can't add file of kind '%s')" % (f, kind)
75
continue
76
@@ -56,7 +56,7 @@
77
78
kind = bzrlib.osutils.file_kind(f)
79
80
- if kind != 'file' and kind != 'directory':
81
+ if kind != 'file' and kind != 'directory' and kind != 'symlink':
82
bailout("can't add file '%s' of kind %r" % (f, kind))
83
84
versioned = (inv.path2id(rf) != None)
85
86
*** modified file 'bzrlib/branch.py'
87
--- bzrlib/branch.py
88
+++ bzrlib/branch.py
89
@@ -58,11 +58,9 @@
90
run into the root."""
91
if f == None:
92
f = os.getcwd()
93
- elif hasattr(os.path, 'realpath'):
94
- f = os.path.realpath(f)
95
else:
96
- f = os.path.abspath(f)
97
- if not os.path.exists(f):
98
+ f = bzrlib.osutils.normalizepath(f)
99
+ if not bzrlib.osutils.lexists(f):
100
raise BzrError('%r does not exist' % f)
101
102
103
@@ -189,7 +187,7 @@
104
"""Return path relative to this branch of something inside it.
105
106
Raises an error if path is not in this branch."""
107
- rp = os.path.realpath(path)
108
+ rp = bzrlib.osutils.normalizepath(path)
109
# FIXME: windows
110
if not rp.startswith(self.base):
111
bailout("path %r is not within branch %r" % (rp, self.base))
112
@@ -531,7 +529,9 @@
113
file_id = entry.file_id
114
mutter('commit prep file %s, id %r ' % (p, file_id))
115
116
- if not os.path.exists(p):
117
+ # it should be enough to use os.lexists instead of exists
118
+ # but lexists in an 2.4 function
119
+ if not bzrlib.osutils.lexists(p):
120
mutter(" file is missing, removing from inventory")
121
if verbose:
122
show_status('D', entry.kind, quotefn(path))
123
@@ -554,6 +554,10 @@
124
if entry.kind == 'directory':
125
if not isdir(p):
126
bailout("%s is entered as directory but not a directory" % quotefn(p))
127
+ elif entry.kind == 'symlink':
128
+ if not os.path.islink(p):
129
+ bailout("%s is entered as symbolic link but is not a symbolic link" % quotefn(p))
130
+ entry.read_symlink_target(p)
131
elif entry.kind == 'file':
132
if not isfile(p):
133
bailout("%s is entered as file but is not a file" % quotefn(p))
134
135
*** modified file 'bzrlib/diff.py'
136
--- bzrlib/diff.py
137
+++ bzrlib/diff.py
138
@@ -66,6 +66,11 @@
139
print >>to_file, "\\ No newline at end of file"
140
print >>to_file
141
142
+def _diff_symlink(old_tree, new_tree, file_id):
143
+ t1 = old_tree.get_symlink_target(file_id)
144
+ t2 = new_tree.get_symlink_target(file_id)
145
+ print '*** *** target changed %r => %r' % (t1, t2)
146
+
147
148
def show_diff(b, revision, specific_files):
149
import sys
150
@@ -112,12 +117,15 @@
151
152
for old_path, new_path, file_id, kind, text_modified in delta.renamed:
153
print '*** renamed %s %r => %r' % (kind, old_path, new_path)
154
- if text_modified:
155
+ if kind == 'file' and text_modified:
156
_diff_one(old_tree.get_file(file_id).readlines(),
157
new_tree.get_file(file_id).readlines(),
158
sys.stdout,
159
fromfile=old_label + old_path,
160
tofile=new_label + new_path)
161
+
162
+ elif kind == 'symlink' and text_modified:
163
+ _diff_symlink(old_tree, new_tree, file_id)
164
165
for path, file_id, kind in delta.modified:
166
print '*** modified %s %r' % (kind, path)
167
@@ -128,6 +136,8 @@
168
fromfile=old_label + path,
169
tofile=new_label + path)
170
171
+ elif kind == 'symlink':
172
+ _diff_symlink(old_tree, new_tree, file_id)
173
174
175
class TreeDelta:
176
@@ -149,7 +159,9 @@
177
Each id is listed only once.
178
179
Files that are both modified and renamed are listed only in
180
- renamed, with the text_modified flag true.
181
+ renamed, with the text_modified flag true. The text_modified
182
+ applies either to the the content of the file or the target of the
183
+ symbolic link, depending of the kind of file.
184
185
The lists are normally sorted when the delta is created.
186
"""
187
@@ -224,8 +236,8 @@
188
specific_files = ImmutableSet(specific_files)
189
190
for file_id in old_tree:
191
+ kind = old_inv.get_file_kind(file_id)
192
if file_id in new_tree:
193
- kind = old_inv.get_file_kind(file_id)
194
assert kind == new_inv.get_file_kind(file_id)
195
196
assert kind in ('file', 'directory', 'symlink', 'root_directory'), \
197
@@ -246,6 +258,14 @@
198
old_sha1 = old_tree.get_file_sha1(file_id)
199
new_sha1 = new_tree.get_file_sha1(file_id)
200
text_modified = (old_sha1 != new_sha1)
201
+ elif kind == 'symlink':
202
+ t1 = old_tree.get_symlink_target(file_id)
203
+ t2 = new_tree.get_symlink_target(file_id)
204
+ if t1 != t2:
205
+ mutter(" symlink target changed")
206
+ text_modified = True
207
+ else:
208
+ text_modified = False
209
else:
210
## mutter("no text to check for %r %r" % (file_id, kind))
211
text_modified = False
212
213
*** modified file 'bzrlib/inventory.py'
214
--- bzrlib/inventory.py
215
+++ bzrlib/inventory.py
216
@@ -125,14 +125,22 @@
217
self.kind = kind
218
self.text_id = text_id
219
self.parent_id = parent_id
220
+ self.symlink_target = None
221
if kind == 'directory':
222
self.children = {}
223
elif kind == 'file':
224
pass
225
+ elif kind == 'symlink':
226
+ pass
227
else:
228
raise BzrError("unhandled entry kind %r" % kind)
229
230
-
231
+ def read_symlink_target(self, path):
232
+ if self.kind == 'symlink':
233
+ try:
234
+ self.symlink_target = os.readlink(path)
235
+ except OSError,e:
236
+ raise BzrError("os.readlink error, %s" % e)
237
238
def sorted_children(self):
239
l = self.children.items()
240
@@ -145,6 +153,7 @@
241
self.parent_id, text_id=self.text_id)
242
other.text_sha1 = self.text_sha1
243
other.text_size = self.text_size
244
+ other.symlink_target = self.symlink_target
245
return other
246
247
248
@@ -168,7 +177,7 @@
249
if self.text_size != None:
250
e.set('text_size', '%d' % self.text_size)
251
252
- for f in ['text_id', 'text_sha1']:
253
+ for f in ['text_id', 'text_sha1', 'symlink_target']:
254
v = getattr(self, f)
255
if v != None:
256
e.set(f, v)
257
@@ -198,6 +207,7 @@
258
self = cls(elt.get('file_id'), elt.get('name'), elt.get('kind'), parent_id)
259
self.text_id = elt.get('text_id')
260
self.text_sha1 = elt.get('text_sha1')
261
+ self.symlink_target = elt.get('symlink_target')
262
263
## mutter("read inventoryentry: %r" % (elt.attrib))
264
265
266
*** modified file 'bzrlib/osutils.py'
267
--- bzrlib/osutils.py
268
+++ bzrlib/osutils.py
269
@@ -58,7 +58,30 @@
270
else:
271
raise BzrError("can't handle file kind with mode %o of %r" % (mode, f))
272
273
-
274
+def lexists(f):
275
+ try:
276
+ if hasattr(os, 'lstat'):
277
+ os.lstat(f)
278
+ else:
279
+ os.stat(f)
280
+ return True
281
+ except OSError,e:
282
+ if e.errno == errno.ENOENT:
283
+ return False;
284
+ else:
285
+ raise BzrError("lstat/stat of (%r): %r" % (f, e))
286
+
287
+def normalizepath(f):
288
+ if hasattr(os.path, 'realpath'):
289
+ F = os.path.realpath
290
+ else:
291
+ F = os.path.abspath
292
+ [p,e] = os.path.split(f)
293
+ if e == "" or e == "." or e == "..":
294
+ return F(f)
295
+ else:
296
+ return os.path.join(F(p), e)
297
+
298
299
def isdir(f):
300
"""True if f is an accessible directory."""
301
302
*** modified file 'bzrlib/statcache.py'
303
--- bzrlib/statcache.py
304
+++ bzrlib/statcache.py
305
@@ -53,7 +53,7 @@
306
to use a tdb instead.
307
308
The cache is represented as a map from file_id to a tuple of (file_id,
309
-sha1, path, size, mtime, ctime, ino, dev).
310
+sha1, path, symlink target, size, mtime, ctime, ino, dev, mode).
311
"""
312
313
314
@@ -62,11 +62,13 @@
315
FP_CTIME = 2
316
FP_INO = 3
317
FP_DEV = 4
318
-
319
+FP_ST_MODE=5
320
321
SC_FILE_ID = 0
322
SC_SHA1 = 1
323
-
324
+SC_SYMLINK_TARGET = 3
325
+
326
+CACHE_ENTRY_SIZE = 10
327
328
def fingerprint(abspath):
329
try:
330
@@ -79,7 +81,7 @@
331
return None
332
333
return (fs.st_size, fs.st_mtime,
334
- fs.st_ctime, fs.st_ino, fs.st_dev)
335
+ fs.st_ctime, fs.st_ino, fs.st_dev, fs.st_mode)
336
337
338
def _write_cache(basedir, entry_iter, dangerfiles):
339
@@ -93,7 +95,9 @@
340
continue
341
outf.write(entry[0] + ' ' + entry[1] + ' ')
342
outf.write(b2a_qp(entry[2], True))
343
- outf.write(' %d %d %d %d %d\n' % entry[3:])
344
+ outf.write(' ')
345
+ outf.write(b2a_qp(entry[3], True)) # symlink_target
346
+ outf.write(' %d %d %d %d %d %d\n' % entry[4:])
347
348
outf.commit()
349
finally:
350
@@ -114,10 +118,13 @@
351
352
for l in cachefile:
353
f = l.split(' ')
354
+ if len(f) != CACHE_ENTRY_SIZE:
355
+ mutter("cache is in old format, must recreate it")
356
+ return {}
357
file_id = f[0]
358
if file_id in cache:
359
raise BzrError("duplicated file_id in cache: {%s}" % file_id)
360
- cache[file_id] = (f[0], f[1], a2b_qp(f[2])) + tuple([long(x) for x in f[3:]])
361
+ cache[file_id] = (f[0], f[1], a2b_qp(f[2]), a2b_qp(f[3])) + tuple([long(x) for x in f[4:]])
362
return cache
363
364
365
@@ -125,7 +132,7 @@
366
367
def _files_from_inventory(inv):
368
for path, ie in inv.iter_entries():
369
- if ie.kind != 'file':
370
+ if ie.kind != 'file' and ie.kind != 'symlink':
371
continue
372
yield ie.file_id, path
373
374
@@ -190,17 +197,24 @@
375
if (fp[FP_MTIME] >= now) or (fp[FP_CTIME] >= now):
376
dangerfiles.add(file_id)
377
378
- if cacheentry and (cacheentry[3:] == fp):
379
+ if cacheentry and (cacheentry[4:] == fp):
380
continue # all stat fields unchanged
381
382
hardcheck += 1
383
384
- dig = sha.new(file(abspath, 'rb').read()).hexdigest()
385
-
386
+ mode = fp[FP_ST_MODE]
387
+ if stat.S_ISREG(mode):
388
+ link_target = '-' # can be anything, but must be non-empty
389
+ dig = sha.new(file(abspath, 'rb').read()).hexdigest()
390
+ elif stat.S_ISLNK(mode):
391
+ link_target = os.readlink(abspath)
392
+ dig = sha.new(link_target).hexdigest()
393
+ else:
394
+ raise BzrError("file %r: unknown file stat mode: %o"%(abspath,mode))
395
if cacheentry == None or dig != cacheentry[1]:
396
# if there was no previous entry for this file, or if the
397
# SHA has changed, then update the cache
398
- cacheentry = (file_id, dig, path) + fp
399
+ cacheentry = (file_id, dig, path, link_target) + fp
400
cache[file_id] = cacheentry
401
change_cnt += 1
402
403
404
*** modified file 'bzrlib/tree.py'
405
--- bzrlib/tree.py
406
+++ bzrlib/tree.py
407
@@ -125,6 +125,11 @@
408
os.mkdir(fullpath)
409
elif kind == 'file':
410
pumpfile(self.get_file(ie.file_id), file(fullpath, 'wb'))
411
+ elif kind == 'symlink':
412
+ try:
413
+ os.symlink(ie.symlink_target, fullpath)
414
+ except OSError,e:
415
+ bailout("Failed to create symlink %r -> %r, error: %s" % (fullpath, ie.symlink_target, e))
416
else:
417
bailout("don't know how to export {%s} of kind %r" % (ie.file_id, kind))
418
mutter(" export {%s} kind %s to %s" % (ie.file_id, kind, fullpath))
419
@@ -167,6 +172,9 @@
420
for path, entry in self.inventory.iter_entries():
421
yield path, 'V', entry.kind, entry.file_id
422
423
+ def get_symlink_target(self, file_id):
424
+ ie = self._inventory[file_id]
425
+ return ie.symlink_target;
426
427
class EmptyTree(Tree):
428
def __init__(self):
429
@@ -179,7 +187,8 @@
430
if False: # just to make it a generator
431
yield None
432
433
-
434
+ def get_symlink_target(self, file_id):
435
+ return None
436
437
######################################################################
438
# diff
439
@@ -245,3 +254,7 @@
440
if old_name != new_name:
441
yield (old_name, new_name)
442
443
+
444
+ def get_symlink_target(self, file_id):
445
+ ie = self._inventory[file_id]
446
+ return ie.symlink_target
447
448
*** modified file 'bzrlib/workingtree.py'
449
--- bzrlib/workingtree.py
450
+++ bzrlib/workingtree.py
451
@@ -53,7 +53,7 @@
452
ie = inv[file_id]
453
if ie.kind == 'file':
454
if ((file_id in self._statcache)
455
- or (os.path.exists(self.abspath(inv.id2path(file_id))))):
456
+ or (bzrlib.osutils.lexists(self.abspath(inv.id2path(file_id))))):
457
yield file_id
458
459
460
@@ -66,7 +66,7 @@
461
return os.path.join(self.basedir, filename)
462
463
def has_filename(self, filename):
464
- return os.path.exists(self.abspath(filename))
465
+ return bzrlib.osutils.lexists(self.abspath(filename))
466
467
def get_file(self, file_id):
468
return self.get_file_byname(self.id2path(file_id))
469
@@ -86,7 +86,7 @@
470
self._update_statcache()
471
if file_id in self._statcache:
472
return True
473
- return os.path.exists(self.abspath(self.id2path(file_id)))
474
+ return bzrlib.osutils.lexists(self.abspath(self.id2path(file_id)))
475
476
477
__contains__ = has_id
478
@@ -108,6 +108,12 @@
479
return self._statcache[file_id][statcache.SC_SHA1]
480
481
482
+ def get_symlink_target(self, file_id):
483
+ import statcache
484
+ self._update_statcache()
485
+ target = self._statcache[file_id][statcache.SC_SYMLINK_TARGET]
486
+ return target
487
+
488
def file_class(self, filename):
489
if self.path2id(filename):
490
return 'V'
491
492
*** modified file 'testbzr'
493
--- testbzr
494
+++ testbzr
495
@@ -1,4 +1,4 @@
496
-#! /usr/bin/python
497
+#! /usr/bin/env python
498
499
# Copyright (C) 2005 Canonical Ltd
500
501
@@ -113,6 +113,17 @@
502
logfile.write(' at %s:%d\n' % stack[:2])
503
504
505
+def has_symlinks():
506
+ import os;
507
+ if hasattr(os, 'symlink'):
508
+ return True
509
+ else:
510
+ return False
511
+
512
+def listdir_sorted(dir):
513
+ L = os.listdir(dir)
514
+ L.sort()
515
+ return L
516
517
# prepare an empty scratch directory
518
if os.path.exists(TESTDIR):
519
@@ -320,8 +331,105 @@
520
runcmd('bzr ignore *.blah')
521
assert backtick('bzr unknowns') == ''
522
assert file('.bzrignore', 'rt').read() == '*.blah\n'
523
-
524
-
525
+ cd("..")
526
+
527
+ if has_symlinks():
528
+ progress("symlinks")
529
+ mkdir('symlinks')
530
+ cd('symlinks')
531
+ runcmd('bzr init')
532
+ os.symlink("NOWHERE1", "link1")
533
+ runcmd('bzr add link1')
534
+ assert backtick('bzr unknowns') == ''
535
+ runcmd(['bzr', 'commit', '-m', '1: added symlink link1'])
536
+
537
+ mkdir('d1')
538
+ runcmd('bzr add d1')
539
+ assert backtick('bzr unknowns') == ''
540
+ os.symlink("NOWHERE2", "d1/link2")
541
+ assert backtick('bzr unknowns') == 'd1/link2\n'
542
+ # is d1/link2 found when adding d1
543
+ runcmd('bzr add d1')
544
+ assert backtick('bzr unknowns') == ''
545
+ os.symlink("NOWHERE3", "d1/link3")
546
+ assert backtick('bzr unknowns') == 'd1/link3\n'
547
+ runcmd(['bzr', 'commit', '-m', '2: added dir, symlink'])
548
+
549
+ runcmd('bzr rename d1 d2')
550
+ runcmd('bzr move d2/link2 .')
551
+ runcmd('bzr move link1 d2')
552
+ assert os.readlink("./link2") == "NOWHERE2"
553
+ assert os.readlink("d2/link1") == "NOWHERE1"
554
+ runcmd('bzr add d2/link3')
555
+ runcmd('bzr diff')
556
+ runcmd(['bzr', 'commit', '-m', '3: rename of dir, move symlinks, add link3'])
557
+
558
+ os.unlink("link2")
559
+ os.symlink("TARGET 2", "link2")
560
+ os.unlink("d2/link1")
561
+ os.symlink("TARGET 1", "d2/link1")
562
+ runcmd('bzr diff')
563
+ assert backtick("bzr relpath d2/link1") == "d2/link1\n"
564
+ runcmd(['bzr', 'commit', '-m', '4: retarget of two links'])
565
+
566
+ runcmd('bzr remove d2/link1')
567
+ assert backtick('bzr unknowns') == 'd2/link1\n'
568
+ runcmd(['bzr', 'commit', '-m', '5: remove d2/link1'])
569
+
570
+ os.mkdir("d1")
571
+ runcmd('bzr add d1')
572
+ runcmd('bzr rename d2/link3 d1/link3new')
573
+ assert backtick('bzr unknowns') == 'd2/link1\n'
574
+ runcmd(['bzr', 'commit', '-m', '6: remove d2/link1, move/rename link3'])
575
+
576
+ runcmd(['bzr', 'check'])
577
+
578
+ runcmd(['bzr', 'export', '-r', '1', 'exp1.tmp'])
579
+ cd("exp1.tmp")
580
+ assert listdir_sorted(".") == [ "link1" ]
581
+ assert os.readlink("link1") == "NOWHERE1"
582
+ cd("..")
583
+
584
+ runcmd(['bzr', 'export', '-r', '2', 'exp2.tmp'])
585
+ cd("exp2.tmp")
586
+ assert listdir_sorted(".") == [ "d1", "link1" ]
587
+ cd("..")
588
+
589
+ runcmd(['bzr', 'export', '-r', '3', 'exp3.tmp'])
590
+ cd("exp3.tmp")
591
+ assert listdir_sorted(".") == [ "d2", "link2" ]
592
+ assert listdir_sorted("d2") == [ "link1", "link3" ]
593
+ assert os.readlink("d2/link1") == "NOWHERE1"
594
+ assert os.readlink("link2") == "NOWHERE2"
595
+ cd("..")
596
+
597
+ runcmd(['bzr', 'export', '-r', '4', 'exp4.tmp'])
598
+ cd("exp4.tmp")
599
+ assert listdir_sorted(".") == [ "d2", "link2" ]
600
+ assert os.readlink("d2/link1") == "TARGET 1"
601
+ assert os.readlink("link2") == "TARGET 2"
602
+ assert listdir_sorted("d2") == [ "link1", "link3" ]
603
+ cd("..")
604
+
605
+ runcmd(['bzr', 'export', '-r', '5', 'exp5.tmp'])
606
+ cd("exp5.tmp")
607
+ assert listdir_sorted(".") == [ "d2", "link2" ]
608
+ assert os.path.islink("link2")
609
+ assert listdir_sorted("d2")== [ "link3" ]
610
+ cd("..")
611
+
612
+ runcmd(['bzr', 'export', '-r', '6', 'exp6.tmp'])
613
+ cd("exp6.tmp")
614
+ assert listdir_sorted(".") == [ "d1", "d2", "link2" ]
615
+ assert listdir_sorted("d1") == [ "link3new" ]
616
+ assert listdir_sorted("d2") == []
617
+ assert os.readlink("d1/link3new") == "NOWHERE3"
618
+ cd("..")
619
+
620
+ cd("..")
621
+ else:
622
+ progress("skipping symlink tests")
623
+
624
progress("all tests passed!")
625
except Exception, e:
626
sys.stderr.write('*' * 50 + '\n'
627
628
629
--=-=-=--
Loggerhead is a web-based interface for Breezy
Version: 2.0.1