23
from stat import ST_MODE, S_ISDIR, S_IMODE
26
from bzrlib.lazy_import import lazy_import
27
lazy_import(globals(), """
25
from stat import ST_MODE, S_ISDIR, ST_SIZE
28
from bzrlib.osutils import (abspath, realpath, normpath, pathjoin, rename,
29
check_legal_path, rmtree)
30
from bzrlib.symbol_versioning import warn
31
from bzrlib.trace import mutter
32
from bzrlib.transport import Transport, Server
33
import bzrlib.urlutils as urlutils
36
class LocalTransport(Transport):
37
from bzrlib.transport import LateReadError
40
from bzrlib import transport
43
_append_flags = os.O_CREAT | os.O_APPEND | os.O_WRONLY | osutils.O_BINARY | osutils.O_NOINHERIT
44
_put_non_atomic_flags = os.O_CREAT | os.O_TRUNC | os.O_WRONLY | osutils.O_BINARY | osutils.O_NOINHERIT
47
class LocalTransport(transport.Transport):
37
48
"""This is the transport agent for local filesystem access."""
39
50
def __init__(self, base):
40
51
"""Set the base path where files will be stored."""
41
52
if not base.startswith('file://'):
42
warn("Instantiating LocalTransport with a filesystem path"
53
symbol_versioning.warn(
54
"Instantiating LocalTransport with a filesystem path"
43
55
" is deprecated as of bzr 0.8."
44
56
" Please use bzrlib.transport.get_transport()"
45
57
" or pass in a file:// url.",
49
61
base = urlutils.local_path_to_url(base)
50
62
if base[-1] != '/':
65
# Special case : windows has no "root", but does have
66
# multiple lettered drives inside it. #240910
67
if sys.platform == 'win32' and base == 'file:///':
70
super(LocalTransport, self).__init__(base)
52
73
super(LocalTransport, self).__init__(base)
53
74
self._local_base = urlutils.local_path_from_url(base)
54
## mutter("_local_base: %r => %r", base, self._local_base)
56
def should_cache(self):
75
if self._local_base[-1] != '/':
76
self._local_base = self._local_base + '/'
59
78
def clone(self, offset=None):
60
79
"""Return a new LocalTransport with root at self.base + offset
61
Because the local filesystem does not require a connection,
80
Because the local filesystem does not require a connection,
62
81
we can just return a new object.
65
84
return LocalTransport(self.base)
67
return LocalTransport(self.abspath(offset))
86
abspath = self.abspath(offset)
87
if abspath == 'file://':
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# fix upwalk for UNC path
89
# when clone from //HOST/path updir recursively
90
# we should stop at least at //HOST part
92
return LocalTransport(abspath)
69
94
def _abspath(self, relative_reference):
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95
"""Return a path for use in os calls.
74
99
- relative_reference is url escaped.
76
101
if relative_reference in ('.', ''):
77
return self._local_base
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# _local_base normally has a trailing slash; strip it so that stat
103
# on a transport pointing to a symlink reads the link not the
104
# referent but be careful of / and c:\
105
return osutils.split(self._local_base)[0]
78
106
return self._local_base + urlutils.unescape(relative_reference)
80
108
def abspath(self, relpath):
81
109
"""Return the full url to the given relative URL."""
82
110
# TODO: url escape the result. RBC 20060523.
83
assert isinstance(relpath, basestring), (type(relpath), relpath)
84
111
# jam 20060426 Using normpath on the real path, because that ensures
85
112
# proper handling of stuff like
86
path = normpath(pathjoin(self._local_base, urlutils.unescape(relpath)))
113
path = osutils.normpath(osutils.pathjoin(
114
self._local_base, urlutils.unescape(relpath)))
115
# on windows, our _local_base may or may not have a drive specified
116
# (ie, it may be "/" or "c:/foo").
117
# If 'relpath' is '/' we *always* get back an abspath without
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# the drive letter - but if our transport already has a drive letter,
119
# we want our abspaths to have a drive letter too - so handle that
121
if (sys.platform == "win32" and self._local_base[1:2] == ":"
123
path = self._local_base[:3]
87
125
return urlutils.local_path_to_url(path)
89
127
def local_abspath(self, relpath):
120
159
:param relpath: The relative path to the file
123
path = self._abspath(relpath)
124
return open(path, 'rb')
125
except (IOError, OSError),e:
126
self._translate_error(e, path)
128
def put(self, relpath, f, mode=None):
129
"""Copy the file-like or string object into the location.
131
:param relpath: Location to put the contents, relative to base.
132
:param f: File-like or string object.
134
from bzrlib.atomicfile import AtomicFile
138
path = self._abspath(relpath)
139
check_legal_path(path)
140
fp = AtomicFile(path, 'wb', new_mode=mode)
141
except (IOError, OSError),e:
142
self._translate_error(e, path)
161
canonical_url = self.abspath(relpath)
162
if canonical_url in transport._file_streams:
163
transport._file_streams[canonical_url].flush()
165
path = self._abspath(relpath)
166
return osutils.open_file(path, 'rb')
167
except (IOError, OSError),e:
168
if e.errno == errno.EISDIR:
169
return LateReadError(relpath)
170
self._translate_error(e, path)
172
def put_file(self, relpath, f, mode=None):
173
"""Copy the file-like object into the location.
175
:param relpath: Location to put the contents, relative to base.
176
:param f: File-like object.
177
:param mode: The mode for the newly created file,
178
None means just use the default
183
path = self._abspath(relpath)
184
osutils.check_legal_path(path)
185
fp = atomicfile.AtomicFile(path, 'wb', new_mode=mode)
186
except (IOError, OSError),e:
187
self._translate_error(e, path)
189
length = self._pump(f, fp)
195
def put_bytes(self, relpath, bytes, mode=None):
196
"""Copy the string into the location.
198
:param relpath: Location to put the contents, relative to base.
204
path = self._abspath(relpath)
205
osutils.check_legal_path(path)
206
fp = atomicfile.AtomicFile(path, 'wb', new_mode=mode)
207
except (IOError, OSError),e:
208
self._translate_error(e, path)
216
def _put_non_atomic_helper(self, relpath, writer,
218
create_parent_dir=False,
220
"""Common functionality information for the put_*_non_atomic.
222
This tracks all the create_parent_dir stuff.
224
:param relpath: the path we are putting to.
225
:param writer: A function that takes an os level file descriptor
226
and writes whatever data it needs to write there.
227
:param mode: The final file mode.
228
:param create_parent_dir: Should we be creating the parent directory
231
abspath = self._abspath(relpath)
233
# os.open() will automatically use the umask
238
fd = os.open(abspath, _put_non_atomic_flags, local_mode)
239
except (IOError, OSError),e:
240
# We couldn't create the file, maybe we need to create
241
# the parent directory, and try again
242
if (not create_parent_dir
243
or e.errno not in (errno.ENOENT,errno.ENOTDIR)):
244
self._translate_error(e, relpath)
245
parent_dir = os.path.dirname(abspath)
247
self._translate_error(e, relpath)
248
self._mkdir(parent_dir, mode=dir_mode)
249
# We created the parent directory, lets try to open the
252
fd = os.open(abspath, _put_non_atomic_flags, local_mode)
253
except (IOError, OSError), e:
254
self._translate_error(e, relpath)
257
if mode is not None and mode != S_IMODE(st.st_mode):
258
# Because of umask, we may still need to chmod the file.
259
# But in the general case, we won't have to
260
os.chmod(abspath, mode)
265
def put_file_non_atomic(self, relpath, f, mode=None,
266
create_parent_dir=False,
268
"""Copy the file-like object into the target location.
270
This function is not strictly safe to use. It is only meant to
271
be used when you already know that the target does not exist.
272
It is not safe, because it will open and truncate the remote
273
file. So there may be a time when the file has invalid contents.
275
:param relpath: The remote location to put the contents.
276
:param f: File-like object.
277
:param mode: Possible access permissions for new file.
278
None means do not set remote permissions.
279
:param create_parent_dir: If we cannot create the target file because
280
the parent directory does not exist, go ahead and
281
create it, and then try again.
284
self._pump_to_fd(f, fd)
285
self._put_non_atomic_helper(relpath, writer, mode=mode,
286
create_parent_dir=create_parent_dir,
289
def put_bytes_non_atomic(self, relpath, bytes, mode=None,
290
create_parent_dir=False, dir_mode=None):
294
self._put_non_atomic_helper(relpath, writer, mode=mode,
295
create_parent_dir=create_parent_dir,
149
298
def iter_files_recursive(self):
150
299
"""Iter the relative paths of files in the transports sub-tree."""
310
def _mkdir(self, abspath, mode=None):
311
"""Create a real directory, filtering through mode"""
313
# os.mkdir() will filter through umask
318
os.mkdir(abspath, local_mode)
320
# It is probably faster to just do the chmod, rather than
321
# doing a stat, and then trying to compare
322
os.chmod(abspath, mode)
323
except (IOError, OSError),e:
324
self._translate_error(e, abspath)
161
326
def mkdir(self, relpath, mode=None):
162
327
"""Create a directory at the given path."""
165
path = self._abspath(relpath)
169
except (IOError, OSError),e:
170
self._translate_error(e, path)
172
def append(self, relpath, f, mode=None):
328
self._mkdir(self._abspath(relpath), mode=mode)
330
def open_write_stream(self, relpath, mode=None):
331
"""See Transport.open_write_stream."""
332
abspath = self._abspath(relpath)
334
handle = osutils.open_file(abspath, 'wb')
335
except (IOError, OSError),e:
336
self._translate_error(e, abspath)
339
self._check_mode_and_size(abspath, handle.fileno(), mode)
340
transport._file_streams[self.abspath(relpath)] = handle
341
return transport.FileFileStream(self, relpath, handle)
343
def _get_append_file(self, relpath, mode=None):
344
"""Call os.open() for the given relpath"""
345
file_abspath = self._abspath(relpath)
347
# os.open() will automatically use the umask
352
return file_abspath, os.open(file_abspath, _append_flags, local_mode)
353
except (IOError, OSError),e:
354
self._translate_error(e, relpath)
356
def _check_mode_and_size(self, file_abspath, fd, mode=None):
357
"""Check the mode of the file, and return the current size"""
359
if mode is not None and mode != S_IMODE(st.st_mode):
360
# Because of umask, we may still need to chmod the file.
361
# But in the general case, we won't have to
362
os.chmod(file_abspath, mode)
365
def append_file(self, relpath, f, mode=None):
173
366
"""Append the text in the file-like object into the final location."""
174
abspath = self._abspath(relpath)
178
fp = open(abspath, 'ab')
179
# FIXME should we really be chmodding every time ? RBC 20060523
181
os.chmod(abspath, mode)
182
except (IOError, OSError),e:
183
self._translate_error(e, relpath)
184
# win32 workaround (tell on an unwritten file returns 0)
367
file_abspath, fd = self._get_append_file(relpath, mode=mode)
369
result = self._check_mode_and_size(file_abspath, fd, mode=mode)
370
self._pump_to_fd(f, fd)
375
def append_bytes(self, relpath, bytes, mode=None):
376
"""Append the text in the string into the final location."""
377
file_abspath, fd = self._get_append_file(relpath, mode=mode)
379
result = self._check_mode_and_size(file_abspath, fd, mode=mode)
386
def _pump_to_fd(self, fromfile, to_fd):
387
"""Copy contents of one file to another."""
390
b = fromfile.read(BUFSIZE)
193
395
def copy(self, rel_from, rel_to):
194
396
"""Copy the item at rel_from to the location at rel_to"""
312
522
except (IOError, OSError),e:
313
523
self._translate_error(e, path)
525
if osutils.host_os_dereferences_symlinks():
526
def readlink(self, relpath):
527
"""See Transport.readlink."""
528
return osutils.readlink(self._abspath(relpath))
530
if osutils.hardlinks_good():
531
def hardlink(self, source, link_name):
532
"""See Transport.link."""
534
os.link(self._abspath(source), self._abspath(link_name))
535
except (IOError, OSError), e:
536
self._translate_error(e, source)
538
if osutils.has_symlinks():
539
def symlink(self, source, link_name):
540
"""See Transport.symlink."""
541
abs_link_dirpath = urlutils.dirname(self.abspath(link_name))
542
source_rel = urlutils.file_relpath(
543
urlutils.strip_trailing_slash(abs_link_dirpath),
544
urlutils.strip_trailing_slash(self.abspath(source))
548
os.symlink(source_rel, self._abspath(link_name))
549
except (IOError, OSError), e:
550
self._translate_error(e, source_rel)
315
552
def _can_roundtrip_unix_modebits(self):
316
553
if sys.platform == 'win32':
323
class LocalRelpathServer(Server):
324
"""A pretend server for local transports, using relpaths."""
327
"""See Transport.Server.get_url."""
331
class LocalAbspathServer(Server):
332
"""A pretend server for local transports, using absolute paths."""
335
"""See Transport.Server.get_url."""
336
return os.path.abspath("")
339
class LocalURLServer(Server):
340
"""A pretend server for local transports, using file:// urls."""
343
"""See Transport.Server.get_url."""
344
return urlutils.local_path_to_url('')
560
class EmulatedWin32LocalTransport(LocalTransport):
561
"""Special transport for testing Win32 [UNC] paths on non-windows"""
563
def __init__(self, base):
566
super(LocalTransport, self).__init__(base)
567
self._local_base = urlutils._win32_local_path_from_url(base)
569
def abspath(self, relpath):
570
path = osutils.normpath(osutils.pathjoin(
571
self._local_base, urlutils.unescape(relpath)))
572
return urlutils._win32_local_path_to_url(path)
574
def clone(self, offset=None):
575
"""Return a new LocalTransport with root at self.base + offset
576
Because the local filesystem does not require a connection,
577
we can just return a new object.
580
return EmulatedWin32LocalTransport(self.base)
582
abspath = self.abspath(offset)
583
if abspath == 'file://':
584
# fix upwalk for UNC path
585
# when clone from //HOST/path updir recursively
586
# we should stop at least at //HOST part
588
return EmulatedWin32LocalTransport(abspath)
347
591
def get_test_permutations():
348
592
"""Return the permutations to be used in testing."""
349
return [(LocalTransport, LocalRelpathServer),
350
(LocalTransport, LocalAbspathServer),
351
(LocalTransport, LocalURLServer),
593
from bzrlib.tests import test_server
594
return [(LocalTransport, test_server.LocalURLServer),]
added
removed
bzrlib/transport/local.py
