118
109
raise BzrError("lstat/stat of (%r): %r" % (f, e))
120
def fancy_rename(old, new, rename_func, unlink_func):
121
"""A fancy rename, when you don't have atomic rename.
123
:param old: The old path, to rename from
124
:param new: The new path, to rename to
125
:param rename_func: The potentially non-atomic rename function
126
:param unlink_func: A way to delete the target file if the full rename succeeds
129
# sftp rename doesn't allow overwriting, so play tricks:
131
base = os.path.basename(new)
132
dirname = os.path.dirname(new)
133
tmp_name = u'tmp.%s.%.9f.%d.%s' % (base, time.time(), os.getpid(), rand_chars(10))
134
tmp_name = pathjoin(dirname, tmp_name)
136
# Rename the file out of the way, but keep track if it didn't exist
137
# We don't want to grab just any exception
138
# something like EACCES should prevent us from continuing
139
# The downside is that the rename_func has to throw an exception
140
# with an errno = ENOENT, or NoSuchFile
143
rename_func(new, tmp_name)
144
except (NoSuchFile,), e:
147
# RBC 20060103 abstraction leakage: the paramiko SFTP clients rename
148
# function raises an IOError with errno == None when a rename fails.
149
# This then gets caught here.
150
if e.errno not in (None, errno.ENOENT, errno.ENOTDIR):
153
if (not hasattr(e, 'errno')
154
or e.errno not in (errno.ENOENT, errno.ENOTDIR)):
161
# This may throw an exception, in which case success will
163
rename_func(old, new)
167
# If the file used to exist, rename it back into place
168
# otherwise just delete it from the tmp location
170
unlink_func(tmp_name)
172
rename_func(tmp_name, new)
174
# Default is to just use the python builtins
175
abspath = os.path.abspath
176
realpath = os.path.realpath
177
pathjoin = os.path.join
178
normpath = os.path.normpath
180
mkdtemp = tempfile.mkdtemp
182
dirname = os.path.dirname
183
basename = os.path.basename
185
MIN_ABS_PATHLENGTH = 1
187
if os.name == "posix":
188
# In Python 2.4.2 and older, os.path.abspath and os.path.realpath
189
# choke on a Unicode string containing a relative path if
190
# os.getcwd() returns a non-sys.getdefaultencoding()-encoded
192
_fs_enc = sys.getfilesystemencoding()
194
return os.path.abspath(path.encode(_fs_enc)).decode(_fs_enc)
197
return os.path.realpath(path.encode(_fs_enc)).decode(_fs_enc)
199
if sys.platform == 'win32':
200
# We need to use the Unicode-aware os.path.abspath and
201
# os.path.realpath on Windows systems.
203
return os.path.abspath(path).replace('\\', '/')
206
return os.path.realpath(path).replace('\\', '/')
209
return os.path.join(*args).replace('\\', '/')
212
return os.path.normpath(path).replace('\\', '/')
215
return os.getcwdu().replace('\\', '/')
217
def mkdtemp(*args, **kwargs):
218
return tempfile.mkdtemp(*args, **kwargs).replace('\\', '/')
220
def rename(old, new):
221
fancy_rename(old, new, rename_func=os.rename, unlink_func=os.unlink)
223
MIN_ABS_PATHLENGTH = 3
225
111
def normalizepath(f):
226
112
if hasattr(os.path, 'realpath'):
230
116
[p,e] = os.path.split(f)
231
117
if e == "" or e == "." or e == "..":
234
return pathjoin(F(p), e)
120
return os.path.join(F(p), e)
237
123
def backup_file(fn):
238
124
"""Copy a file to a backup.
287
175
def is_inside(dir, fname):
288
176
"""True if fname is inside dir.
290
The parameters should typically be passed to osutils.normpath first, so
178
The parameters should typically be passed to os.path.normpath first, so
291
179
that . and .. and repeated slashes are eliminated, and the separators
292
180
are canonical for the platform.
294
182
The empty string as a dir name is taken as top-of-tree and matches
297
>>> is_inside('src', pathjoin('src', 'foo.c'))
185
>>> is_inside('src', os.path.join('src', 'foo.c'))
299
187
>>> is_inside('src', 'srccontrol')
301
>>> is_inside('src', pathjoin('src', 'a', 'a', 'a', 'foo.c'))
189
>>> is_inside('src', os.path.join('src', 'a', 'a', 'a', 'foo.c'))
303
191
>>> is_inside('foo.c', 'foo.c')
384
259
'sha1': s.hexdigest()}
263
"""Return per-user configuration directory.
265
By default this is ~/.bzr.conf/
267
TODO: Global option --config-dir to override this.
269
return os.path.join(os.path.expanduser("~"), ".bzr.conf")
273
"""Calculate automatic user identification.
275
Returns (realname, email).
277
Only used when none is set in the environment or the id file.
279
This previously used the FQDN as the default domain, but that can
280
be very slow on machines where DNS is broken. So now we simply
285
# XXX: Any good way to get real user name on win32?
290
w = pwd.getpwuid(uid)
291
gecos = w.pw_gecos.decode(bzrlib.user_encoding)
292
username = w.pw_name.decode(bzrlib.user_encoding)
293
comma = gecos.find(',')
297
realname = gecos[:comma]
303
realname = username = getpass.getuser().decode(bzrlib.user_encoding)
305
return realname, (username + '@' + socket.gethostname())
308
def _get_user_id(branch):
309
"""Return the full user id from a file or environment variable.
311
e.g. "John Hacker <jhacker@foo.org>"
314
A branch to use for a per-branch configuration, or None.
316
The following are searched in order:
319
2. .bzr/email for this branch.
323
v = os.environ.get('BZREMAIL')
325
return v.decode(bzrlib.user_encoding)
329
return (branch.controlfile("email", "r")
331
.decode(bzrlib.user_encoding)
334
if e.errno != errno.ENOENT:
340
return (open(os.path.join(config_dir(), "email"))
342
.decode(bzrlib.user_encoding)
345
if e.errno != errno.ENOENT:
348
v = os.environ.get('EMAIL')
350
return v.decode(bzrlib.user_encoding)
355
def username(branch):
356
"""Return email-style username.
358
Something similar to 'Martin Pool <mbp@sourcefrog.net>'
360
TODO: Check it's reasonably well-formed.
362
v = _get_user_id(branch)
366
name, email = _auto_user_id()
368
return '%s <%s>' % (name, email)
373
def user_email(branch):
374
"""Return just the email component of a username."""
375
e = _get_user_id(branch)
377
m = re.search(r'[\w+.-]+@[\w+.-]+', e)
379
raise BzrError("%r doesn't seem to contain "
380
"a reasonable email address" % e)
383
return _auto_user_id()[1]
387
386
def compare_files(a, b):
388
387
"""Returns true if equal in contents"""
523
502
if (f == '..') or (f == None) or (f == ''):
524
503
raise BzrError("sorry, %r not allowed in path" % f)
504
return os.path.join(*p)
528
507
def appendpath(p1, p2):
532
return pathjoin(p1, p2)
511
return os.path.join(p1, p2)
514
def _read_config_value(name):
515
"""Read a config value from the file ~/.bzr.conf/<name>
516
Return None if the file does not exist"""
518
f = file(os.path.join(config_dir(), name), "r")
519
return f.read().decode(bzrlib.user_encoding).rstrip("\r\n")
521
if e.errno == errno.ENOENT:
535
526
def split_lines(s):
536
527
"""Split s into lines, but without removing the newline characters."""
537
lines = s.split('\n')
538
result = [line + '\n' for line in lines[:-1]]
540
result.append(lines[-1])
528
return StringIO(s).readlines()
544
531
def hardlinks_good():
558
545
copyfile(src, dest)
560
def delete_any(full_path):
561
"""Delete a file or directory."""
565
# We may be renaming a dangling inventory id
566
if e.errno not in (errno.EISDIR, errno.EACCES, errno.EPERM):
571
548
def has_symlinks():
572
549
if hasattr(os, 'symlink'):
578
def contains_whitespace(s):
579
"""True if there are any whitespace characters in s."""
580
for ch in string.whitespace:
587
def contains_linebreaks(s):
588
"""True if there is any vertical whitespace in s."""
596
def relpath(base, path):
597
"""Return path relative to base, or raise exception.
599
The path may be either an absolute path or a path relative to the
600
current working directory.
602
os.path.commonprefix (python2.4) has a bad bug that it works just
603
on string prefixes, assuming that '/u' is a prefix of '/u2'. This
607
assert len(base) >= MIN_ABS_PATHLENGTH, ('Length of base must be equal or'
608
' exceed the platform minimum length (which is %d)' %
614
while len(head) >= len(base):
617
head, tail = os.path.split(head)
621
# XXX This should raise a NotChildPath exception, as its not tied
623
raise PathNotChild(rp, base)
631
def safe_unicode(unicode_or_utf8_string):
632
"""Coerce unicode_or_utf8_string into unicode.
634
If it is unicode, it is returned.
635
Otherwise it is decoded from utf-8. If a decoding error
636
occurs, it is wrapped as a If the decoding fails, the exception is wrapped
637
as a BzrBadParameter exception.
639
if isinstance(unicode_or_utf8_string, unicode):
640
return unicode_or_utf8_string
642
return unicode_or_utf8_string.decode('utf8')
643
except UnicodeDecodeError:
644
raise BzrBadParameterNotUnicode(unicode_or_utf8_string)
647
def terminal_width():
648
"""Return estimated terminal width."""
650
# TODO: Do something smart on Windows?
652
# TODO: Is there anything that gets a better update when the window
653
# is resized while the program is running? We could use the Python termcap
656
return int(os.environ['COLUMNS'])
657
except (IndexError, KeyError, ValueError):
660
def supports_executable():
661
return sys.platform != "win32"
664
def strip_trailing_slash(path):
665
"""Strip trailing slash, except for root paths.
666
The definition of 'root path' is platform-dependent.
668
if len(path) != MIN_ABS_PATHLENGTH and path[-1] == '/':
674
_validWin32PathRE = re.compile(r'^([A-Za-z]:[/\\])?[^:<>*"?\|]*$')
677
def check_legal_path(path):
678
"""Check whether the supplied path is legal.
679
This is only required on Windows, so we don't test on other platforms
682
if sys.platform != "win32":
684
if _validWin32PathRE.match(path) is None:
685
raise IllegalPath(path)
added
removed
bzrlib/osutils.py
