1
# Copyright (C) 2005 Canonical Ltd
3
# This program is free software; you can redistribute it and/or modify
4
# it under the terms of the GNU General Public License as published by
5
# the Free Software Foundation; either version 2 of the License, or
6
# (at your option) any later version.
8
# This program is distributed in the hope that it will be useful,
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11
# GNU General Public License for more details.
13
# You should have received a copy of the GNU General Public License
14
# along with this program; if not, write to the Free Software
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17
"""WorkingTree object and friends.
19
A WorkingTree represents the editable working copy of a branch.
20
Operations which represent the WorkingTree are also done here,
21
such as renaming or adding files. The WorkingTree has an inventory
22
which is updated by these operations. A commit produces a
23
new revision based on the workingtree and its inventory.
25
At the moment every WorkingTree has its own branch. Remote
26
WorkingTrees aren't supported.
28
To get a WorkingTree, call Branch.working_tree():
32
# TODO: Don't allow WorkingTrees to be constructed for remote branches if
35
# FIXME: I don't know if writing out the cache from the destructor is really a
36
# good idea, because destructors are considered poor taste in Python, and it's
37
# not predictable when it will be written out.
39
# TODO: Give the workingtree sole responsibility for the working inventory;
40
# remove the variable and references to it from the branch. This may require
41
# updating the commit code so as to update the inventory within the working
42
# copy, and making sure there's only one WorkingTree for any directory on disk.
43
# At the momenthey may alias the inventory and have old copies of it in memory.
49
from bzrlib.branch import Branch, needs_read_lock, needs_write_lock, quotefn
51
from bzrlib.osutils import appendpath, file_kind, isdir, splitpath, relpath
52
from bzrlib.errors import BzrCheckError, DivergedBranches, NotVersionedError
53
from bzrlib.trace import mutter
56
class TreeEntry(object):
57
"""An entry that implements the minium interface used by commands.
59
This needs further inspection, it may be better to have
60
InventoryEntries without ids - though that seems wrong. For now,
61
this is a parallel hierarchy to InventoryEntry, and needs to become
62
one of several things: decorates to that hierarchy, children of, or
64
Another note is that these objects are currently only used when there is
65
no InventoryEntry available - i.e. for unversioned objects.
66
Perhaps they should be UnversionedEntry et al. ? - RBC 20051003
69
def __eq__(self, other):
70
# yes, this us ugly, TODO: best practice __eq__ style.
71
return (isinstance(other, TreeEntry)
72
and other.__class__ == self.__class__)
74
def kind_character(self):
78
class TreeDirectory(TreeEntry):
79
"""See TreeEntry. This is a directory in a working tree."""
81
def __eq__(self, other):
82
return (isinstance(other, TreeDirectory)
83
and other.__class__ == self.__class__)
85
def kind_character(self):
89
class TreeFile(TreeEntry):
90
"""See TreeEntry. This is a regular file in a working tree."""
92
def __eq__(self, other):
93
return (isinstance(other, TreeFile)
94
and other.__class__ == self.__class__)
96
def kind_character(self):
100
class TreeLink(TreeEntry):
101
"""See TreeEntry. This is a symlink in a working tree."""
103
def __eq__(self, other):
104
return (isinstance(other, TreeLink)
105
and other.__class__ == self.__class__)
107
def kind_character(self):
111
class WorkingTree(bzrlib.tree.Tree):
112
"""Working copy tree.
114
The inventory is held in the `Branch` working-inventory, and the
115
files are in a directory on disk.
117
It is possible for a `WorkingTree` to have a filename which is
118
not listed in the Inventory and vice versa.
121
def __init__(self, basedir, branch=None):
122
"""Construct a WorkingTree for basedir.
124
If the branch is not supplied, it is opened automatically.
125
If the branch is supplied, it must be the branch for this basedir.
126
(branch.base is not cross checked, because for remote branches that
127
would be meaningless).
129
from bzrlib.hashcache import HashCache
130
from bzrlib.trace import note, mutter
131
assert isinstance(basedir, basestring), \
132
"base directory %r is not a string" % basedir
134
branch = Branch.open(basedir)
135
assert isinstance(branch, Branch), \
136
"branch %r is not a Branch" % branch
137
self._inventory = branch.inventory
138
self.path2id = self._inventory.path2id
140
self.basedir = basedir
142
# update the whole cache up front and write to disk if anything changed;
143
# in the future we might want to do this more selectively
144
# two possible ways offer themselves : in self._unlock, write the cache
145
# if needed, or, when the cache sees a change, append it to the hash
146
# cache file, and have the parser take the most recent entry for a
148
hc = self._hashcache = HashCache(basedir)
157
"""Iterate through file_ids for this tree.
159
file_ids are in a WorkingTree if they are in the working inventory
160
and the working file exists.
162
inv = self._inventory
163
for path, ie in inv.iter_entries():
164
if bzrlib.osutils.lexists(self.abspath(path)):
169
return "<%s of %s>" % (self.__class__.__name__,
170
getattr(self, 'basedir', None))
174
def abspath(self, filename):
175
return os.path.join(self.basedir, filename)
177
def relpath(self, abspath):
178
"""Return the local path portion from a given absolute path."""
179
return relpath(self.basedir, abspath)
181
def has_filename(self, filename):
182
return bzrlib.osutils.lexists(self.abspath(filename))
184
def get_file(self, file_id):
185
return self.get_file_byname(self.id2path(file_id))
187
def get_file_byname(self, filename):
188
return file(self.abspath(filename), 'rb')
190
def _get_store_filename(self, file_id):
191
## XXX: badly named; this isn't in the store at all
192
return self.abspath(self.id2path(file_id))
195
def id2abspath(self, file_id):
196
return self.abspath(self.id2path(file_id))
199
def has_id(self, file_id):
200
# files that have been deleted are excluded
201
inv = self._inventory
202
if not inv.has_id(file_id):
204
path = inv.id2path(file_id)
205
return bzrlib.osutils.lexists(self.abspath(path))
207
def has_or_had_id(self, file_id):
208
if file_id == self.inventory.root.file_id:
210
return self.inventory.has_id(file_id)
212
__contains__ = has_id
215
def get_file_size(self, file_id):
216
return os.path.getsize(self.id2abspath(file_id))
218
def get_file_sha1(self, file_id):
219
path = self._inventory.id2path(file_id)
220
return self._hashcache.get_sha1(path)
223
def is_executable(self, file_id):
225
return self._inventory[file_id].executable
227
path = self._inventory.id2path(file_id)
228
mode = os.lstat(self.abspath(path)).st_mode
229
return bool(stat.S_ISREG(mode) and stat.S_IEXEC&mode)
231
def get_symlink_target(self, file_id):
232
return os.readlink(self.id2abspath(file_id))
234
def file_class(self, filename):
235
if self.path2id(filename):
237
elif self.is_ignored(filename):
243
def list_files(self):
244
"""Recursively list all files as (path, class, kind, id).
246
Lists, but does not descend into unversioned directories.
248
This does not include files that have been deleted in this
251
Skips the control directory.
253
inv = self._inventory
255
def descend(from_dir_relpath, from_dir_id, dp):
259
## TODO: If we find a subdirectory with its own .bzr
260
## directory, then that is a separate tree and we
261
## should exclude it.
262
if bzrlib.BZRDIR == f:
266
fp = appendpath(from_dir_relpath, f)
269
fap = appendpath(dp, f)
271
f_ie = inv.get_child(from_dir_id, f)
274
elif self.is_ignored(fp):
283
raise BzrCheckError("file %r entered as kind %r id %r, "
285
% (fap, f_ie.kind, f_ie.file_id, fk))
287
# make a last minute entry
291
if fk == 'directory':
292
entry = TreeDirectory()
295
elif fk == 'symlink':
300
yield fp, c, fk, (f_ie and f_ie.file_id), entry
302
if fk != 'directory':
306
# don't descend unversioned directories
309
for ff in descend(fp, f_ie.file_id, fap):
312
for f in descend('', inv.root.file_id, self.basedir):
318
for subp in self.extras():
319
if not self.is_ignored(subp):
322
def iter_conflicts(self):
324
for path in (s[0] for s in self.list_files()):
325
stem = get_conflicted_stem(path)
328
if stem not in conflicted:
333
def pull(self, source, overwrite=False):
334
from bzrlib.merge import merge_inner
337
old_revision_history = self.branch.revision_history()
338
self.branch.pull(source, overwrite)
339
new_revision_history = self.branch.revision_history()
340
if new_revision_history != old_revision_history:
341
if len(old_revision_history):
342
other_revision = old_revision_history[-1]
344
other_revision = None
345
merge_inner(self.branch,
346
self.branch.basis_tree(),
347
self.branch.revision_tree(other_revision))
352
"""Yield all unknown files in this WorkingTree.
354
If there are any unknown directories then only the directory is
355
returned, not all its children. But if there are unknown files
356
under a versioned subdirectory, they are returned.
358
Currently returned depth-first, sorted by name within directories.
360
## TODO: Work from given directory downwards
361
for path, dir_entry in self.inventory.directories():
362
mutter("search for unknowns in %r" % path)
363
dirabs = self.abspath(path)
364
if not isdir(dirabs):
365
# e.g. directory deleted
369
for subf in os.listdir(dirabs):
371
and (subf not in dir_entry.children)):
376
subp = appendpath(path, subf)
380
def ignored_files(self):
381
"""Yield list of PATH, IGNORE_PATTERN"""
382
for subp in self.extras():
383
pat = self.is_ignored(subp)
388
def get_ignore_list(self):
389
"""Return list of ignore patterns.
391
Cached in the Tree object after the first call.
393
if hasattr(self, '_ignorelist'):
394
return self._ignorelist
396
l = bzrlib.DEFAULT_IGNORE[:]
397
if self.has_filename(bzrlib.IGNORE_FILENAME):
398
f = self.get_file_byname(bzrlib.IGNORE_FILENAME)
399
l.extend([line.rstrip("\n\r") for line in f.readlines()])
404
def is_ignored(self, filename):
405
r"""Check whether the filename matches an ignore pattern.
407
Patterns containing '/' or '\' need to match the whole path;
408
others match against only the last component.
410
If the file is ignored, returns the pattern which caused it to
411
be ignored, otherwise None. So this can simply be used as a
412
boolean if desired."""
414
# TODO: Use '**' to match directories, and other extended
415
# globbing stuff from cvs/rsync.
417
# XXX: fnmatch is actually not quite what we want: it's only
418
# approximately the same as real Unix fnmatch, and doesn't
419
# treat dotfiles correctly and allows * to match /.
420
# Eventually it should be replaced with something more
423
for pat in self.get_ignore_list():
424
if '/' in pat or '\\' in pat:
426
# as a special case, you can put ./ at the start of a
427
# pattern; this is good to match in the top-level
430
if (pat[:2] == './') or (pat[:2] == '.\\'):
434
if fnmatch.fnmatchcase(filename, newpat):
437
if fnmatch.fnmatchcase(splitpath(filename)[-1], pat):
442
def kind(self, file_id):
443
return file_kind(self.id2abspath(file_id))
446
"""See Branch.lock_read, and WorkingTree.unlock."""
447
return self.branch.lock_read()
449
def lock_write(self):
450
"""See Branch.lock_write, and WorkingTree.unlock."""
451
return self.branch.lock_write()
454
def remove(self, files, verbose=False):
455
"""Remove nominated files from the working inventory..
457
This does not remove their text. This does not run on XXX on what? RBC
459
TODO: Refuse to remove modified files unless --force is given?
461
TODO: Do something useful with directories.
463
TODO: Should this remove the text or not? Tough call; not
464
removing may be useful and the user can just use use rm, and
465
is the opposite of add. Removing it is consistent with most
466
other tools. Maybe an option.
468
## TODO: Normalize names
469
## TODO: Remove nested loops; better scalability
470
if isinstance(files, basestring):
475
# do this before any modifications
479
# TODO: Perhaps make this just a warning, and continue?
480
# This tends to happen when
481
raise NotVersionedError(path=f)
482
mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
484
# having remove it, it must be either ignored or unknown
485
if self.is_ignored(f):
489
show_status(new_status, inv[fid].kind, quotefn(f))
492
self.branch._write_inventory(inv)
495
"""See Branch.unlock.
497
WorkingTree locking just uses the Branch locking facilities.
498
This is current because all working trees have an embedded branch
499
within them. IF in the future, we were to make branch data shareable
500
between multiple working trees, i.e. via shared storage, then we
501
would probably want to lock both the local tree, and the branch.
503
return self.branch.unlock()
506
CONFLICT_SUFFIXES = ('.THIS', '.BASE', '.OTHER')
507
def get_conflicted_stem(path):
508
for suffix in CONFLICT_SUFFIXES:
509
if path.endswith(suffix):
510
return path[:-len(suffix)]
added
removed
bzrlib/workingtree.py
