117
110
raise BzrError("lstat/stat of (%r): %r" % (f, e))
119
def fancy_rename(old, new, rename_func, unlink_func):
120
"""A fancy rename, when you don't have atomic rename.
122
:param old: The old path, to rename from
123
:param new: The new path, to rename to
124
:param rename_func: The potentially non-atomic rename function
125
:param unlink_func: A way to delete the target file if the full rename succeeds
128
# sftp rename doesn't allow overwriting, so play tricks:
130
base = os.path.basename(new)
131
dirname = os.path.dirname(new)
132
tmp_name = u'tmp.%s.%.9f.%d.%d' % (base, time.time(), os.getpid(), random.randint(0, 0x7FFFFFFF))
133
tmp_name = pathjoin(dirname, tmp_name)
135
# Rename the file out of the way, but keep track if it didn't exist
136
# We don't want to grab just any exception
137
# something like EACCES should prevent us from continuing
138
# The downside is that the rename_func has to throw an exception
139
# with an errno = ENOENT, or NoSuchFile
142
rename_func(new, tmp_name)
143
except (NoSuchFile,), e:
146
# RBC 20060103 abstraction leakage: the paramiko SFTP clients rename
147
# function raises an IOError with errno == None when a rename fails.
148
# This then gets caught here.
149
if e.errno not in (None, errno.ENOENT, errno.ENOTDIR):
152
if (not hasattr(e, 'errno')
153
or e.errno not in (errno.ENOENT, errno.ENOTDIR)):
160
# This may throw an exception, in which case success will
162
rename_func(old, new)
166
# If the file used to exist, rename it back into place
167
# otherwise just delete it from the tmp location
169
unlink_func(tmp_name)
171
rename_func(tmp_name, new)
173
# Default is to just use the python builtins
174
abspath = os.path.abspath
175
realpath = os.path.realpath
176
pathjoin = os.path.join
177
normpath = os.path.normpath
179
mkdtemp = tempfile.mkdtemp
181
dirname = os.path.dirname
182
basename = os.path.basename
112
def normalizepath(f):
113
if hasattr(os.path, 'realpath'):
117
[p,e] = os.path.split(f)
118
if e == "" or e == "." or e == "..":
121
return os.path.join(F(p), e)
184
123
if os.name == "posix":
185
124
# In Python 2.4.2 and older, os.path.abspath and os.path.realpath
189
128
_fs_enc = sys.getfilesystemencoding()
190
129
def abspath(path):
191
130
return os.path.abspath(path.encode(_fs_enc)).decode(_fs_enc)
193
131
def realpath(path):
194
132
return os.path.realpath(path.encode(_fs_enc)).decode(_fs_enc)
196
if sys.platform == 'win32':
197
134
# We need to use the Unicode-aware os.path.abspath and
198
135
# os.path.realpath on Windows systems.
200
return os.path.abspath(path).replace('\\', '/')
203
return os.path.realpath(path).replace('\\', '/')
206
return os.path.join(*args).replace('\\', '/')
209
return os.path.normpath(path).replace('\\', '/')
212
return os.getcwdu().replace('\\', '/')
214
def mkdtemp(*args, **kwargs):
215
return tempfile.mkdtemp(*args, **kwargs).replace('\\', '/')
217
def rename(old, new):
218
fancy_rename(old, new, rename_func=os.rename, unlink_func=os.unlink)
221
def normalizepath(f):
222
if hasattr(os.path, 'realpath'):
226
[p,e] = os.path.split(f)
227
if e == "" or e == "." or e == "..":
230
return pathjoin(F(p), e)
136
abspath = os.path.abspath
137
realpath = os.path.realpath
233
139
def backup_file(fn):
234
140
"""Copy a file to a backup.
283
195
def is_inside(dir, fname):
284
196
"""True if fname is inside dir.
286
The parameters should typically be passed to osutils.normpath first, so
198
The parameters should typically be passed to os.path.normpath first, so
287
199
that . and .. and repeated slashes are eliminated, and the separators
288
200
are canonical for the platform.
290
202
The empty string as a dir name is taken as top-of-tree and matches
293
>>> is_inside('src', pathjoin('src', 'foo.c'))
205
>>> is_inside('src', os.path.join('src', 'foo.c'))
295
207
>>> is_inside('src', 'srccontrol')
297
>>> is_inside('src', pathjoin('src', 'a', 'a', 'a', 'foo.c'))
209
>>> is_inside('src', os.path.join('src', 'a', 'a', 'a', 'foo.c'))
299
211
>>> is_inside('foo.c', 'foo.c')
583
482
# XXX This should raise a NotChildPath exception, as its not tied
584
483
# to branch anymore.
585
raise PathNotChild(rp, base)
593
def safe_unicode(unicode_or_utf8_string):
594
"""Coerce unicode_or_utf8_string into unicode.
596
If it is unicode, it is returned.
597
Otherwise it is decoded from utf-8. If a decoding error
598
occurs, it is wrapped as a If the decoding fails, the exception is wrapped
599
as a BzrBadParameter exception.
601
if isinstance(unicode_or_utf8_string, unicode):
602
return unicode_or_utf8_string
604
return unicode_or_utf8_string.decode('utf8')
605
except UnicodeDecodeError:
606
raise BzrBadParameterNotUnicode(unicode_or_utf8_string)
609
def terminal_width():
610
"""Return estimated terminal width."""
612
# TODO: Do something smart on Windows?
614
# TODO: Is there anything that gets a better update when the window
615
# is resized while the program is running? We could use the Python termcap
618
return int(os.environ['COLUMNS'])
619
except (IndexError, KeyError, ValueError):
484
raise NotBranchError("path %r is not within branch %r" % (rp, base))
486
return os.sep.join(s)