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  • Committer: mbp at sourcefrog
  • Date: 2005-04-11 02:53:57 UTC
  • Revision ID: mbp@sourcefrog.net-20050411025357-af577721308648ae
- remove profiler temporary file when done

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1
 
# Copyright (C) 2005, 2006, 2007 Canonical Ltd
2
 
#
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.
7
 
#
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.
12
 
#
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
16
 
 
17
 
"""WorkingTree4 format and implementation.
18
 
 
19
 
WorkingTree4 provides the dirstate based working tree logic.
20
 
 
21
 
To get a WorkingTree, call bzrdir.open_workingtree() or
22
 
WorkingTree.open(dir).
23
 
"""
24
 
 
25
 
from cStringIO import StringIO
26
 
import os
27
 
import sys
28
 
 
29
 
from bzrlib.lazy_import import lazy_import
30
 
lazy_import(globals(), """
31
 
from bisect import bisect_left
32
 
import collections
33
 
from copy import deepcopy
34
 
import errno
35
 
import itertools
36
 
import operator
37
 
import stat
38
 
from time import time
39
 
import warnings
40
 
 
41
 
import bzrlib
42
 
from bzrlib import (
43
 
    bzrdir,
44
 
    cache_utf8,
45
 
    conflicts as _mod_conflicts,
46
 
    debug,
47
 
    delta,
48
 
    dirstate,
49
 
    errors,
50
 
    generate_ids,
51
 
    globbing,
52
 
    ignores,
53
 
    merge,
54
 
    osutils,
55
 
    revision as _mod_revision,
56
 
    revisiontree,
57
 
    textui,
58
 
    trace,
59
 
    transform,
60
 
    urlutils,
61
 
    xml5,
62
 
    xml6,
63
 
    )
64
 
import bzrlib.branch
65
 
from bzrlib.transport import get_transport
66
 
import bzrlib.ui
67
 
""")
68
 
 
69
 
from bzrlib import symbol_versioning
70
 
from bzrlib.decorators import needs_read_lock, needs_write_lock
71
 
from bzrlib.inventory import InventoryEntry, Inventory, ROOT_ID, entry_factory
72
 
from bzrlib.lockable_files import LockableFiles, TransportLock
73
 
from bzrlib.lockdir import LockDir
74
 
import bzrlib.mutabletree
75
 
from bzrlib.mutabletree import needs_tree_write_lock
76
 
from bzrlib.osutils import (
77
 
    file_kind,
78
 
    isdir,
79
 
    normpath,
80
 
    pathjoin,
81
 
    rand_chars,
82
 
    realpath,
83
 
    safe_unicode,
84
 
    splitpath,
85
 
    )
86
 
from bzrlib.trace import mutter, note
87
 
from bzrlib.transport.local import LocalTransport
88
 
from bzrlib.tree import InterTree
89
 
from bzrlib.progress import DummyProgress, ProgressPhase
90
 
from bzrlib.revision import NULL_REVISION, CURRENT_REVISION
91
 
from bzrlib.rio import RioReader, rio_file, Stanza
92
 
from bzrlib.symbol_versioning import (deprecated_passed,
93
 
        deprecated_method,
94
 
        deprecated_function,
95
 
        DEPRECATED_PARAMETER,
96
 
        )
97
 
from bzrlib.tree import Tree
98
 
from bzrlib.workingtree import WorkingTree, WorkingTree3, WorkingTreeFormat3
99
 
 
100
 
 
101
 
# This is the Windows equivalent of ENOTDIR
102
 
# It is defined in pywin32.winerror, but we don't want a strong dependency for
103
 
# just an error code.
104
 
ERROR_PATH_NOT_FOUND = 3
105
 
ERROR_DIRECTORY = 267
106
 
 
107
 
 
108
 
class WorkingTree4(WorkingTree3):
109
 
    """This is the Format 4 working tree.
110
 
 
111
 
    This differs from WorkingTree3 by:
112
 
     - Having a consolidated internal dirstate, stored in a
113
 
       randomly-accessible sorted file on disk.
114
 
     - Not having a regular inventory attribute.  One can be synthesized 
115
 
       on demand but this is expensive and should be avoided.
116
 
 
117
 
    This is new in bzr 0.15.
118
 
    """
119
 
 
120
 
    def __init__(self, basedir,
121
 
                 branch,
122
 
                 _control_files=None,
123
 
                 _format=None,
124
 
                 _bzrdir=None):
125
 
        """Construct a WorkingTree for basedir.
126
 
 
127
 
        If the branch is not supplied, it is opened automatically.
128
 
        If the branch is supplied, it must be the branch for this basedir.
129
 
        (branch.base is not cross checked, because for remote branches that
130
 
        would be meaningless).
131
 
        """
132
 
        self._format = _format
133
 
        self.bzrdir = _bzrdir
134
 
        assert isinstance(basedir, basestring), \
135
 
            "base directory %r is not a string" % basedir
136
 
        basedir = safe_unicode(basedir)
137
 
        mutter("opening working tree %r", basedir)
138
 
        self._branch = branch
139
 
        assert isinstance(self.branch, bzrlib.branch.Branch), \
140
 
            "branch %r is not a Branch" % self.branch
141
 
        self.basedir = realpath(basedir)
142
 
        # if branch is at our basedir and is a format 6 or less
143
 
        # assume all other formats have their own control files.
144
 
        assert isinstance(_control_files, LockableFiles), \
145
 
            "_control_files must be a LockableFiles, not %r" % _control_files
146
 
        self._control_files = _control_files
147
 
        self._dirty = None
148
 
        #-------------
149
 
        # during a read or write lock these objects are set, and are
150
 
        # None the rest of the time.
151
 
        self._dirstate = None
152
 
        self._inventory = None
153
 
        #-------------
154
 
 
155
 
    @needs_tree_write_lock
156
 
    def _add(self, files, ids, kinds):
157
 
        """See MutableTree._add."""
158
 
        state = self.current_dirstate()
159
 
        for f, file_id, kind in zip(files, ids, kinds):
160
 
            f = f.strip('/')
161
 
            if self.path2id(f):
162
 
                # special case tree root handling.
163
 
                if f == '' and self.path2id(f) == ROOT_ID:
164
 
                    state.set_path_id('', generate_ids.gen_file_id(f))
165
 
                continue
166
 
            if file_id is None:
167
 
                file_id = generate_ids.gen_file_id(f)
168
 
            # deliberately add the file with no cached stat or sha1
169
 
            # - on the first access it will be gathered, and we can
170
 
            # always change this once tests are all passing.
171
 
            state.add(f, file_id, kind, None, '')
172
 
        self._make_dirty(reset_inventory=True)
173
 
 
174
 
    def _make_dirty(self, reset_inventory):
175
 
        """Make the tree state dirty.
176
 
 
177
 
        :param reset_inventory: True if the cached inventory should be removed
178
 
            (presuming there is one).
179
 
        """
180
 
        self._dirty = True
181
 
        if reset_inventory and self._inventory is not None:
182
 
            self._inventory = None
183
 
 
184
 
    @needs_tree_write_lock
185
 
    def add_reference(self, sub_tree):
186
 
        # use standard implementation, which calls back to self._add
187
 
        # 
188
 
        # So we don't store the reference_revision in the working dirstate,
189
 
        # it's just recorded at the moment of commit. 
190
 
        self._add_reference(sub_tree)
191
 
 
192
 
    def break_lock(self):
193
 
        """Break a lock if one is present from another instance.
194
 
 
195
 
        Uses the ui factory to ask for confirmation if the lock may be from
196
 
        an active process.
197
 
 
198
 
        This will probe the repository for its lock as well.
199
 
        """
200
 
        # if the dirstate is locked by an active process, reject the break lock
201
 
        # call.
202
 
        try:
203
 
            if self._dirstate is None:
204
 
                clear = True
205
 
            else:
206
 
                clear = False
207
 
            state = self._current_dirstate()
208
 
            if state._lock_token is not None:
209
 
                # we already have it locked. sheese, cant break our own lock.
210
 
                raise errors.LockActive(self.basedir)
211
 
            else:
212
 
                try:
213
 
                    # try for a write lock - need permission to get one anyhow
214
 
                    # to break locks.
215
 
                    state.lock_write()
216
 
                except errors.LockContention:
217
 
                    # oslocks fail when a process is still live: fail.
218
 
                    # TODO: get the locked lockdir info and give to the user to
219
 
                    # assist in debugging.
220
 
                    raise errors.LockActive(self.basedir)
221
 
                else:
222
 
                    state.unlock()
223
 
        finally:
224
 
            if clear:
225
 
                self._dirstate = None
226
 
        self._control_files.break_lock()
227
 
        self.branch.break_lock()
228
 
 
229
 
    def _comparison_data(self, entry, path):
230
 
        kind, executable, stat_value = \
231
 
            WorkingTree3._comparison_data(self, entry, path)
232
 
        # it looks like a plain directory, but it's really a reference -- see
233
 
        # also kind()
234
 
        if (self._repo_supports_tree_reference and
235
 
            kind == 'directory' and
236
 
            self._directory_is_tree_reference(path)):
237
 
            kind = 'tree-reference'
238
 
        return kind, executable, stat_value
239
 
 
240
 
    @needs_write_lock
241
 
    def commit(self, message=None, revprops=None, *args, **kwargs):
242
 
        # mark the tree as dirty post commit - commit
243
 
        # can change the current versioned list by doing deletes.
244
 
        result = WorkingTree3.commit(self, message, revprops, *args, **kwargs)
245
 
        self._make_dirty(reset_inventory=True)
246
 
        return result
247
 
 
248
 
    def current_dirstate(self):
249
 
        """Return the current dirstate object.
250
 
 
251
 
        This is not part of the tree interface and only exposed for ease of
252
 
        testing.
253
 
 
254
 
        :raises errors.NotWriteLocked: when not in a lock.
255
 
        """
256
 
        self._must_be_locked()
257
 
        return self._current_dirstate()
258
 
 
259
 
    def _current_dirstate(self):
260
 
        """Internal function that does not check lock status.
261
 
 
262
 
        This is needed for break_lock which also needs the dirstate.
263
 
        """
264
 
        if self._dirstate is not None:
265
 
            return self._dirstate
266
 
        local_path = self.bzrdir.get_workingtree_transport(None
267
 
            ).local_abspath('dirstate')
268
 
        self._dirstate = dirstate.DirState.on_file(local_path)
269
 
        return self._dirstate
270
 
 
271
 
    def filter_unversioned_files(self, paths):
272
 
        """Filter out paths that are versioned.
273
 
 
274
 
        :return: set of paths.
275
 
        """
276
 
        # TODO: make a generic multi-bisect routine roughly that should list
277
 
        # the paths, then process one half at a time recursively, and feed the
278
 
        # results of each bisect in further still
279
 
        paths = sorted(paths)
280
 
        result = set()
281
 
        state = self.current_dirstate()
282
 
        # TODO we want a paths_to_dirblocks helper I think
283
 
        for path in paths:
284
 
            dirname, basename = os.path.split(path.encode('utf8'))
285
 
            _, _, _, path_is_versioned = state._get_block_entry_index(
286
 
                dirname, basename, 0)
287
 
            if not path_is_versioned:
288
 
                result.add(path)
289
 
        return result
290
 
 
291
 
    def flush(self):
292
 
        """Write all cached data to disk."""
293
 
        if self._control_files._lock_mode != 'w':
294
 
            raise errors.NotWriteLocked(self)
295
 
        self.current_dirstate().save()
296
 
        self._inventory = None
297
 
        self._dirty = False
298
 
 
299
 
    @needs_tree_write_lock
300
 
    def _gather_kinds(self, files, kinds):
301
 
        """See MutableTree._gather_kinds."""
302
 
        for pos, f in enumerate(files):
303
 
            if kinds[pos] is None:
304
 
                kinds[pos] = self._kind(f)
305
 
 
306
 
    def _generate_inventory(self):
307
 
        """Create and set self.inventory from the dirstate object.
308
 
        
309
 
        This is relatively expensive: we have to walk the entire dirstate.
310
 
        Ideally we would not, and can deprecate this function.
311
 
        """
312
 
        #: uncomment to trap on inventory requests.
313
 
        # import pdb;pdb.set_trace()
314
 
        state = self.current_dirstate()
315
 
        state._read_dirblocks_if_needed()
316
 
        root_key, current_entry = self._get_entry(path='')
317
 
        current_id = root_key[2]
318
 
        assert current_entry[0][0] == 'd' # directory
319
 
        inv = Inventory(root_id=current_id)
320
 
        # Turn some things into local variables
321
 
        minikind_to_kind = dirstate.DirState._minikind_to_kind
322
 
        factory = entry_factory
323
 
        utf8_decode = cache_utf8._utf8_decode
324
 
        inv_byid = inv._byid
325
 
        # we could do this straight out of the dirstate; it might be fast
326
 
        # and should be profiled - RBC 20070216
327
 
        parent_ies = {'' : inv.root}
328
 
        for block in state._dirblocks[1:]: # skip the root
329
 
            dirname = block[0]
330
 
            try:
331
 
                parent_ie = parent_ies[dirname]
332
 
            except KeyError:
333
 
                # all the paths in this block are not versioned in this tree
334
 
                continue
335
 
            for key, entry in block[1]:
336
 
                minikind, link_or_sha1, size, executable, stat = entry[0]
337
 
                if minikind in ('a', 'r'): # absent, relocated
338
 
                    # a parent tree only entry
339
 
                    continue
340
 
                name = key[1]
341
 
                name_unicode = utf8_decode(name)[0]
342
 
                file_id = key[2]
343
 
                kind = minikind_to_kind[minikind]
344
 
                inv_entry = factory[kind](file_id, name_unicode,
345
 
                                          parent_ie.file_id)
346
 
                if kind == 'file':
347
 
                    # This is only needed on win32, where this is the only way
348
 
                    # we know the executable bit.
349
 
                    inv_entry.executable = executable
350
 
                    # not strictly needed: working tree
351
 
                    #inv_entry.text_size = size
352
 
                    #inv_entry.text_sha1 = sha1
353
 
                elif kind == 'directory':
354
 
                    # add this entry to the parent map.
355
 
                    parent_ies[(dirname + '/' + name).strip('/')] = inv_entry
356
 
                elif kind == 'tree-reference':
357
 
                    assert self._repo_supports_tree_reference, \
358
 
                        "repository of %r " \
359
 
                        "doesn't support tree references " \
360
 
                        "required by entry %r" \
361
 
                        % (self, name)
362
 
                    inv_entry.reference_revision = link_or_sha1 or None
363
 
                elif kind != 'symlink':
364
 
                    raise AssertionError("unknown kind %r" % kind)
365
 
                # These checks cost us around 40ms on a 55k entry tree
366
 
                assert file_id not in inv_byid, ('file_id %s already in'
367
 
                    ' inventory as %s' % (file_id, inv_byid[file_id]))
368
 
                assert name_unicode not in parent_ie.children
369
 
                inv_byid[file_id] = inv_entry
370
 
                parent_ie.children[name_unicode] = inv_entry
371
 
        self._inventory = inv
372
 
 
373
 
    def _get_entry(self, file_id=None, path=None):
374
 
        """Get the dirstate row for file_id or path.
375
 
 
376
 
        If either file_id or path is supplied, it is used as the key to lookup.
377
 
        If both are supplied, the fastest lookup is used, and an error is
378
 
        raised if they do not both point at the same row.
379
 
        
380
 
        :param file_id: An optional unicode file_id to be looked up.
381
 
        :param path: An optional unicode path to be looked up.
382
 
        :return: The dirstate row tuple for path/file_id, or (None, None)
383
 
        """
384
 
        if file_id is None and path is None:
385
 
            raise errors.BzrError('must supply file_id or path')
386
 
        state = self.current_dirstate()
387
 
        if path is not None:
388
 
            path = path.encode('utf8')
389
 
        return state._get_entry(0, fileid_utf8=file_id, path_utf8=path)
390
 
 
391
 
    def get_file_sha1(self, file_id, path=None, stat_value=None):
392
 
        # check file id is valid unconditionally.
393
 
        entry = self._get_entry(file_id=file_id, path=path)
394
 
        if entry[0] is None:
395
 
            raise errors.NoSuchId(self, file_id)
396
 
        if path is None:
397
 
            path = pathjoin(entry[0][0], entry[0][1]).decode('utf8')
398
 
 
399
 
        file_abspath = self.abspath(path)
400
 
        state = self.current_dirstate()
401
 
        if stat_value is None:
402
 
            try:
403
 
                stat_value = os.lstat(file_abspath)
404
 
            except OSError, e:
405
 
                if e.errno == errno.ENOENT:
406
 
                    return None
407
 
                else:
408
 
                    raise
409
 
        link_or_sha1 = state.update_entry(entry, file_abspath,
410
 
                                          stat_value=stat_value)
411
 
        if entry[1][0][0] == 'f':
412
 
            return link_or_sha1
413
 
        return None
414
 
 
415
 
    def _get_inventory(self):
416
 
        """Get the inventory for the tree. This is only valid within a lock."""
417
 
        if 'evil' in debug.debug_flags:
418
 
            trace.mutter_callsite(2,
419
 
                "accessing .inventory forces a size of tree translation.")
420
 
        if self._inventory is not None:
421
 
            return self._inventory
422
 
        self._must_be_locked()
423
 
        self._generate_inventory()
424
 
        return self._inventory
425
 
 
426
 
    inventory = property(_get_inventory,
427
 
                         doc="Inventory of this Tree")
428
 
 
429
 
    @needs_read_lock
430
 
    def get_parent_ids(self):
431
 
        """See Tree.get_parent_ids.
432
 
        
433
 
        This implementation requests the ids list from the dirstate file.
434
 
        """
435
 
        return self.current_dirstate().get_parent_ids()
436
 
 
437
 
    def get_reference_revision(self, file_id, path=None):
438
 
        # referenced tree's revision is whatever's currently there
439
 
        return self.get_nested_tree(file_id, path).last_revision()
440
 
 
441
 
    def get_nested_tree(self, file_id, path=None):
442
 
        if path is None:
443
 
            path = self.id2path(file_id)
444
 
        # else: check file_id is at path?
445
 
        return WorkingTree.open(self.abspath(path))
446
 
 
447
 
    @needs_read_lock
448
 
    def get_root_id(self):
449
 
        """Return the id of this trees root"""
450
 
        return self._get_entry(path='')[0][2]
451
 
 
452
 
    def has_id(self, file_id):
453
 
        state = self.current_dirstate()
454
 
        row, parents = self._get_entry(file_id=file_id)
455
 
        if row is None:
456
 
            return False
457
 
        return osutils.lexists(pathjoin(
458
 
                    self.basedir, row[0].decode('utf8'), row[1].decode('utf8')))
459
 
 
460
 
    @needs_read_lock
461
 
    def id2path(self, file_id):
462
 
        "Convert a file-id to a path."
463
 
        state = self.current_dirstate()
464
 
        entry = self._get_entry(file_id=file_id)
465
 
        if entry == (None, None):
466
 
            raise errors.NoSuchId(tree=self, file_id=file_id)
467
 
        path_utf8 = osutils.pathjoin(entry[0][0], entry[0][1])
468
 
        return path_utf8.decode('utf8')
469
 
 
470
 
    def _is_executable_from_path_and_stat_from_basis(self, path, stat_result):
471
 
        entry = self._get_entry(path=path)
472
 
        if entry == (None, None):
473
 
            return False # Missing entries are not executable
474
 
        return entry[1][0][3] # Executable?
475
 
 
476
 
    if not osutils.supports_executable():
477
 
        def is_executable(self, file_id, path=None):
478
 
            """Test if a file is executable or not.
479
 
 
480
 
            Note: The caller is expected to take a read-lock before calling this.
481
 
            """
482
 
            entry = self._get_entry(file_id=file_id, path=path)
483
 
            if entry == (None, None):
484
 
                return False
485
 
            return entry[1][0][3]
486
 
 
487
 
        _is_executable_from_path_and_stat = \
488
 
            _is_executable_from_path_and_stat_from_basis
489
 
    else:
490
 
        def is_executable(self, file_id, path=None):
491
 
            """Test if a file is executable or not.
492
 
 
493
 
            Note: The caller is expected to take a read-lock before calling this.
494
 
            """
495
 
            if not path:
496
 
                path = self.id2path(file_id)
497
 
            mode = os.lstat(self.abspath(path)).st_mode
498
 
            return bool(stat.S_ISREG(mode) and stat.S_IEXEC & mode)
499
 
 
500
 
    @needs_read_lock
501
 
    def __iter__(self):
502
 
        """Iterate through file_ids for this tree.
503
 
 
504
 
        file_ids are in a WorkingTree if they are in the working inventory
505
 
        and the working file exists.
506
 
        """
507
 
        result = []
508
 
        for key, tree_details in self.current_dirstate()._iter_entries():
509
 
            if tree_details[0][0] in ('a', 'r'): # absent, relocated
510
 
                # not relevant to the working tree
511
 
                continue
512
 
            path = pathjoin(self.basedir, key[0].decode('utf8'), key[1].decode('utf8'))
513
 
            if osutils.lexists(path):
514
 
                result.append(key[2])
515
 
        return iter(result)
516
 
 
517
 
    def iter_references(self):
518
 
        for key, tree_details in self.current_dirstate()._iter_entries():
519
 
            if tree_details[0][0] in ('a', 'r'): # absent, relocated
520
 
                # not relevant to the working tree
521
 
                continue
522
 
            if not key[1]:
523
 
                # the root is not a reference.
524
 
                continue
525
 
            path = pathjoin(self.basedir, key[0].decode('utf8'), key[1].decode('utf8'))
526
 
            try:
527
 
                if self._kind(path) == 'tree-reference':
528
 
                    yield path, key[2]
529
 
            except errors.NoSuchFile:
530
 
                # path is missing on disk.
531
 
                continue
532
 
 
533
 
    def kind(self, file_id):
534
 
        """Return the kind of a file.
535
 
 
536
 
        This is always the actual kind that's on disk, regardless of what it
537
 
        was added as.
538
 
 
539
 
        Note: The caller is expected to take a read-lock before calling this.
540
 
        """
541
 
        relpath = self.id2path(file_id)
542
 
        assert relpath != None, \
543
 
            "path for id {%s} is None!" % file_id
544
 
        return self._kind(relpath)
545
 
 
546
 
    def _kind(self, relpath):
547
 
        abspath = self.abspath(relpath)
548
 
        kind = file_kind(abspath)
549
 
        if (self._repo_supports_tree_reference and
550
 
            kind == 'directory' and
551
 
            self._directory_is_tree_reference(relpath)):
552
 
            kind = 'tree-reference'
553
 
        return kind
554
 
 
555
 
    @needs_read_lock
556
 
    def _last_revision(self):
557
 
        """See Mutable.last_revision."""
558
 
        parent_ids = self.current_dirstate().get_parent_ids()
559
 
        if parent_ids:
560
 
            return parent_ids[0]
561
 
        else:
562
 
            return _mod_revision.NULL_REVISION
563
 
 
564
 
    def lock_read(self):
565
 
        """See Branch.lock_read, and WorkingTree.unlock."""
566
 
        self.branch.lock_read()
567
 
        try:
568
 
            self._control_files.lock_read()
569
 
            try:
570
 
                state = self.current_dirstate()
571
 
                if not state._lock_token:
572
 
                    state.lock_read()
573
 
                # set our support for tree references from the repository in
574
 
                # use.
575
 
                self._repo_supports_tree_reference = getattr(
576
 
                    self.branch.repository._format, "supports_tree_reference",
577
 
                    False)
578
 
            except:
579
 
                self._control_files.unlock()
580
 
                raise
581
 
        except:
582
 
            self.branch.unlock()
583
 
            raise
584
 
 
585
 
    def _lock_self_write(self):
586
 
        """This should be called after the branch is locked."""
587
 
        try:
588
 
            self._control_files.lock_write()
589
 
            try:
590
 
                state = self.current_dirstate()
591
 
                if not state._lock_token:
592
 
                    state.lock_write()
593
 
                # set our support for tree references from the repository in
594
 
                # use.
595
 
                self._repo_supports_tree_reference = getattr(
596
 
                    self.branch.repository._format, "supports_tree_reference",
597
 
                    False)
598
 
            except:
599
 
                self._control_files.unlock()
600
 
                raise
601
 
        except:
602
 
            self.branch.unlock()
603
 
            raise
604
 
 
605
 
    def lock_tree_write(self):
606
 
        """See MutableTree.lock_tree_write, and WorkingTree.unlock."""
607
 
        self.branch.lock_read()
608
 
        self._lock_self_write()
609
 
 
610
 
    def lock_write(self):
611
 
        """See MutableTree.lock_write, and WorkingTree.unlock."""
612
 
        self.branch.lock_write()
613
 
        self._lock_self_write()
614
 
 
615
 
    @needs_tree_write_lock
616
 
    def move(self, from_paths, to_dir, after=False):
617
 
        """See WorkingTree.move()."""
618
 
        result = []
619
 
        if not from_paths:
620
 
            return result
621
 
 
622
 
        state = self.current_dirstate()
623
 
 
624
 
        assert not isinstance(from_paths, basestring)
625
 
        to_dir_utf8 = to_dir.encode('utf8')
626
 
        to_entry_dirname, to_basename = os.path.split(to_dir_utf8)
627
 
        id_index = state._get_id_index()
628
 
        # check destination directory
629
 
        # get the details for it
630
 
        to_entry_block_index, to_entry_entry_index, dir_present, entry_present = \
631
 
            state._get_block_entry_index(to_entry_dirname, to_basename, 0)
632
 
        if not entry_present:
633
 
            raise errors.BzrMoveFailedError('', to_dir,
634
 
                errors.NotVersionedError(to_dir))
635
 
        to_entry = state._dirblocks[to_entry_block_index][1][to_entry_entry_index]
636
 
        # get a handle on the block itself.
637
 
        to_block_index = state._ensure_block(
638
 
            to_entry_block_index, to_entry_entry_index, to_dir_utf8)
639
 
        to_block = state._dirblocks[to_block_index]
640
 
        to_abs = self.abspath(to_dir)
641
 
        if not isdir(to_abs):
642
 
            raise errors.BzrMoveFailedError('',to_dir,
643
 
                errors.NotADirectory(to_abs))
644
 
 
645
 
        if to_entry[1][0][0] != 'd':
646
 
            raise errors.BzrMoveFailedError('',to_dir,
647
 
                errors.NotADirectory(to_abs))
648
 
 
649
 
        if self._inventory is not None:
650
 
            update_inventory = True
651
 
            inv = self.inventory
652
 
            to_dir_ie = inv[to_dir_id]
653
 
            to_dir_id = to_entry[0][2]
654
 
        else:
655
 
            update_inventory = False
656
 
 
657
 
        rollbacks = []
658
 
        def move_one(old_entry, from_path_utf8, minikind, executable,
659
 
                     fingerprint, packed_stat, size,
660
 
                     to_block, to_key, to_path_utf8):
661
 
            state._make_absent(old_entry)
662
 
            from_key = old_entry[0]
663
 
            rollbacks.append(
664
 
                lambda:state.update_minimal(from_key,
665
 
                    minikind,
666
 
                    executable=executable,
667
 
                    fingerprint=fingerprint,
668
 
                    packed_stat=packed_stat,
669
 
                    size=size,
670
 
                    path_utf8=from_path_utf8))
671
 
            state.update_minimal(to_key,
672
 
                    minikind,
673
 
                    executable=executable,
674
 
                    fingerprint=fingerprint,
675
 
                    packed_stat=packed_stat,
676
 
                    size=size,
677
 
                    path_utf8=to_path_utf8)
678
 
            added_entry_index, _ = state._find_entry_index(to_key, to_block[1])
679
 
            new_entry = to_block[1][added_entry_index]
680
 
            rollbacks.append(lambda:state._make_absent(new_entry))
681
 
 
682
 
        for from_rel in from_paths:
683
 
            # from_rel is 'pathinroot/foo/bar'
684
 
            from_rel_utf8 = from_rel.encode('utf8')
685
 
            from_dirname, from_tail = osutils.split(from_rel)
686
 
            from_dirname, from_tail_utf8 = osutils.split(from_rel_utf8)
687
 
            from_entry = self._get_entry(path=from_rel)
688
 
            if from_entry == (None, None):
689
 
                raise errors.BzrMoveFailedError(from_rel,to_dir,
690
 
                    errors.NotVersionedError(path=str(from_rel)))
691
 
 
692
 
            from_id = from_entry[0][2]
693
 
            to_rel = pathjoin(to_dir, from_tail)
694
 
            to_rel_utf8 = pathjoin(to_dir_utf8, from_tail_utf8)
695
 
            item_to_entry = self._get_entry(path=to_rel)
696
 
            if item_to_entry != (None, None):
697
 
                raise errors.BzrMoveFailedError(from_rel, to_rel,
698
 
                    "Target is already versioned.")
699
 
 
700
 
            if from_rel == to_rel:
701
 
                raise errors.BzrMoveFailedError(from_rel, to_rel,
702
 
                    "Source and target are identical.")
703
 
 
704
 
            from_missing = not self.has_filename(from_rel)
705
 
            to_missing = not self.has_filename(to_rel)
706
 
            if after:
707
 
                move_file = False
708
 
            else:
709
 
                move_file = True
710
 
            if to_missing:
711
 
                if not move_file:
712
 
                    raise errors.BzrMoveFailedError(from_rel, to_rel,
713
 
                        errors.NoSuchFile(path=to_rel,
714
 
                        extra="New file has not been created yet"))
715
 
                elif from_missing:
716
 
                    # neither path exists
717
 
                    raise errors.BzrRenameFailedError(from_rel, to_rel,
718
 
                        errors.PathsDoNotExist(paths=(from_rel, to_rel)))
719
 
            else:
720
 
                if from_missing: # implicitly just update our path mapping
721
 
                    move_file = False
722
 
                elif not after:
723
 
                    raise errors.RenameFailedFilesExist(from_rel, to_rel,
724
 
                        extra="(Use --after to update the Bazaar id)")
725
 
 
726
 
            rollbacks = []
727
 
            def rollback_rename():
728
 
                """A single rename has failed, roll it back."""
729
 
                # roll back everything, even if we encounter trouble doing one
730
 
                # of them.
731
 
                #
732
 
                # TODO: at least log the other exceptions rather than just
733
 
                # losing them mbp 20070307
734
 
                exc_info = None
735
 
                for rollback in reversed(rollbacks):
736
 
                    try:
737
 
                        rollback()
738
 
                    except Exception, e:
739
 
                        exc_info = sys.exc_info()
740
 
                if exc_info:
741
 
                    raise exc_info[0], exc_info[1], exc_info[2]
742
 
 
743
 
            # perform the disk move first - its the most likely failure point.
744
 
            if move_file:
745
 
                from_rel_abs = self.abspath(from_rel)
746
 
                to_rel_abs = self.abspath(to_rel)
747
 
                try:
748
 
                    osutils.rename(from_rel_abs, to_rel_abs)
749
 
                except OSError, e:
750
 
                    raise errors.BzrMoveFailedError(from_rel, to_rel, e[1])
751
 
                rollbacks.append(lambda: osutils.rename(to_rel_abs, from_rel_abs))
752
 
            try:
753
 
                # perform the rename in the inventory next if needed: its easy
754
 
                # to rollback
755
 
                if update_inventory:
756
 
                    # rename the entry
757
 
                    from_entry = inv[from_id]
758
 
                    current_parent = from_entry.parent_id
759
 
                    inv.rename(from_id, to_dir_id, from_tail)
760
 
                    rollbacks.append(
761
 
                        lambda: inv.rename(from_id, current_parent, from_tail))
762
 
                # finally do the rename in the dirstate, which is a little
763
 
                # tricky to rollback, but least likely to need it.
764
 
                old_block_index, old_entry_index, dir_present, file_present = \
765
 
                    state._get_block_entry_index(from_dirname, from_tail_utf8, 0)
766
 
                old_block = state._dirblocks[old_block_index][1]
767
 
                old_entry = old_block[old_entry_index]
768
 
                from_key, old_entry_details = old_entry
769
 
                cur_details = old_entry_details[0]
770
 
                # remove the old row
771
 
                to_key = ((to_block[0],) + from_key[1:3])
772
 
                minikind = cur_details[0]
773
 
                move_one(old_entry, from_path_utf8=from_rel_utf8,
774
 
                         minikind=minikind,
775
 
                         executable=cur_details[3],
776
 
                         fingerprint=cur_details[1],
777
 
                         packed_stat=cur_details[4],
778
 
                         size=cur_details[2],
779
 
                         to_block=to_block,
780
 
                         to_key=to_key,
781
 
                         to_path_utf8=to_rel_utf8)
782
 
 
783
 
                if minikind == 'd':
784
 
                    def update_dirblock(from_dir, to_key, to_dir_utf8):
785
 
                        """Recursively update all entries in this dirblock."""
786
 
                        assert from_dir != '', "renaming root not supported"
787
 
                        from_key = (from_dir, '')
788
 
                        from_block_idx, present = \
789
 
                            state._find_block_index_from_key(from_key)
790
 
                        if not present:
791
 
                            # This is the old record, if it isn't present, then
792
 
                            # there is theoretically nothing to update.
793
 
                            # (Unless it isn't present because of lazy loading,
794
 
                            # but we don't do that yet)
795
 
                            return
796
 
                        from_block = state._dirblocks[from_block_idx]
797
 
                        to_block_index, to_entry_index, _, _ = \
798
 
                            state._get_block_entry_index(to_key[0], to_key[1], 0)
799
 
                        to_block_index = state._ensure_block(
800
 
                            to_block_index, to_entry_index, to_dir_utf8)
801
 
                        to_block = state._dirblocks[to_block_index]
802
 
 
803
 
                        # Grab a copy since move_one may update the list.
804
 
                        for entry in from_block[1][:]:
805
 
                            assert entry[0][0] == from_dir
806
 
                            cur_details = entry[1][0]
807
 
                            to_key = (to_dir_utf8, entry[0][1], entry[0][2])
808
 
                            from_path_utf8 = osutils.pathjoin(entry[0][0], entry[0][1])
809
 
                            to_path_utf8 = osutils.pathjoin(to_dir_utf8, entry[0][1])
810
 
                            minikind = cur_details[0]
811
 
                            if minikind in 'ar':
812
 
                                # Deleted children of a renamed directory
813
 
                                # Do not need to be updated.
814
 
                                # Children that have been renamed out of this
815
 
                                # directory should also not be updated
816
 
                                continue
817
 
                            move_one(entry, from_path_utf8=from_path_utf8,
818
 
                                     minikind=minikind,
819
 
                                     executable=cur_details[3],
820
 
                                     fingerprint=cur_details[1],
821
 
                                     packed_stat=cur_details[4],
822
 
                                     size=cur_details[2],
823
 
                                     to_block=to_block,
824
 
                                     to_key=to_key,
825
 
                                     to_path_utf8=to_path_utf8)
826
 
                            if minikind == 'd':
827
 
                                # We need to move all the children of this
828
 
                                # entry
829
 
                                update_dirblock(from_path_utf8, to_key,
830
 
                                                to_path_utf8)
831
 
                    update_dirblock(from_rel_utf8, to_key, to_rel_utf8)
832
 
            except:
833
 
                rollback_rename()
834
 
                raise
835
 
            result.append((from_rel, to_rel))
836
 
            state._dirblock_state = dirstate.DirState.IN_MEMORY_MODIFIED
837
 
            self._make_dirty(reset_inventory=False)
838
 
 
839
 
        return result
840
 
 
841
 
    def _must_be_locked(self):
842
 
        if not self._control_files._lock_count:
843
 
            raise errors.ObjectNotLocked(self)
844
 
 
845
 
    def _new_tree(self):
846
 
        """Initialize the state in this tree to be a new tree."""
847
 
        self._dirty = True
848
 
 
849
 
    @needs_read_lock
850
 
    def path2id(self, path):
851
 
        """Return the id for path in this tree."""
852
 
        path = path.strip('/')
853
 
        entry = self._get_entry(path=path)
854
 
        if entry == (None, None):
855
 
            return None
856
 
        return entry[0][2]
857
 
 
858
 
    def paths2ids(self, paths, trees=[], require_versioned=True):
859
 
        """See Tree.paths2ids().
860
 
 
861
 
        This specialisation fast-paths the case where all the trees are in the
862
 
        dirstate.
863
 
        """
864
 
        if paths is None:
865
 
            return None
866
 
        parents = self.get_parent_ids()
867
 
        for tree in trees:
868
 
            if not (isinstance(tree, DirStateRevisionTree) and tree._revision_id in
869
 
                parents):
870
 
                return super(WorkingTree4, self).paths2ids(paths, trees, require_versioned)
871
 
        search_indexes = [0] + [1 + parents.index(tree._revision_id) for tree in trees]
872
 
        # -- make all paths utf8 --
873
 
        paths_utf8 = set()
874
 
        for path in paths:
875
 
            paths_utf8.add(path.encode('utf8'))
876
 
        paths = paths_utf8
877
 
        # -- paths is now a utf8 path set --
878
 
        # -- get the state object and prepare it.
879
 
        state = self.current_dirstate()
880
 
        if False and (state._dirblock_state == dirstate.DirState.NOT_IN_MEMORY
881
 
            and '' not in paths):
882
 
            paths2ids = self._paths2ids_using_bisect
883
 
        else:
884
 
            paths2ids = self._paths2ids_in_memory
885
 
        return paths2ids(paths, search_indexes,
886
 
                         require_versioned=require_versioned)
887
 
 
888
 
    def _paths2ids_in_memory(self, paths, search_indexes,
889
 
                             require_versioned=True):
890
 
        state = self.current_dirstate()
891
 
        state._read_dirblocks_if_needed()
892
 
        def _entries_for_path(path):
893
 
            """Return a list with all the entries that match path for all ids.
894
 
            """
895
 
            dirname, basename = os.path.split(path)
896
 
            key = (dirname, basename, '')
897
 
            block_index, present = state._find_block_index_from_key(key)
898
 
            if not present:
899
 
                # the block which should contain path is absent.
900
 
                return []
901
 
            result = []
902
 
            block = state._dirblocks[block_index][1]
903
 
            entry_index, _ = state._find_entry_index(key, block)
904
 
            # we may need to look at multiple entries at this path: walk while the paths match.
905
 
            while (entry_index < len(block) and
906
 
                block[entry_index][0][0:2] == key[0:2]):
907
 
                result.append(block[entry_index])
908
 
                entry_index += 1
909
 
            return result
910
 
        if require_versioned:
911
 
            # -- check all supplied paths are versioned in a search tree. --
912
 
            all_versioned = True
913
 
            for path in paths:
914
 
                path_entries = _entries_for_path(path)
915
 
                if not path_entries:
916
 
                    # this specified path is not present at all: error
917
 
                    all_versioned = False
918
 
                    break
919
 
                found_versioned = False
920
 
                # for each id at this path
921
 
                for entry in path_entries:
922
 
                    # for each tree.
923
 
                    for index in search_indexes:
924
 
                        if entry[1][index][0] != 'a': # absent
925
 
                            found_versioned = True
926
 
                            # all good: found a versioned cell
927
 
                            break
928
 
                if not found_versioned:
929
 
                    # none of the indexes was not 'absent' at all ids for this
930
 
                    # path.
931
 
                    all_versioned = False
932
 
                    break
933
 
            if not all_versioned:
934
 
                raise errors.PathsNotVersionedError(paths)
935
 
        # -- remove redundancy in supplied paths to prevent over-scanning --
936
 
        search_paths = osutils.minimum_path_selection(paths)
937
 
        # sketch: 
938
 
        # for all search_indexs in each path at or under each element of
939
 
        # search_paths, if the detail is relocated: add the id, and add the
940
 
        # relocated path as one to search if its not searched already. If the
941
 
        # detail is not relocated, add the id.
942
 
        searched_paths = set()
943
 
        found_ids = set()
944
 
        def _process_entry(entry):
945
 
            """Look at search_indexes within entry.
946
 
 
947
 
            If a specific tree's details are relocated, add the relocation
948
 
            target to search_paths if not searched already. If it is absent, do
949
 
            nothing. Otherwise add the id to found_ids.
950
 
            """
951
 
            for index in search_indexes:
952
 
                if entry[1][index][0] == 'r': # relocated
953
 
                    if not osutils.is_inside_any(searched_paths, entry[1][index][1]):
954
 
                        search_paths.add(entry[1][index][1])
955
 
                elif entry[1][index][0] != 'a': # absent
956
 
                    found_ids.add(entry[0][2])
957
 
        while search_paths:
958
 
            current_root = search_paths.pop()
959
 
            searched_paths.add(current_root)
960
 
            # process the entries for this containing directory: the rest will be
961
 
            # found by their parents recursively.
962
 
            root_entries = _entries_for_path(current_root)
963
 
            if not root_entries:
964
 
                # this specified path is not present at all, skip it.
965
 
                continue
966
 
            for entry in root_entries:
967
 
                _process_entry(entry)
968
 
            initial_key = (current_root, '', '')
969
 
            block_index, _ = state._find_block_index_from_key(initial_key)
970
 
            while (block_index < len(state._dirblocks) and
971
 
                osutils.is_inside(current_root, state._dirblocks[block_index][0])):
972
 
                for entry in state._dirblocks[block_index][1]:
973
 
                    _process_entry(entry)
974
 
                block_index += 1
975
 
        return found_ids
976
 
 
977
 
    def _paths2ids_using_bisect(self, paths, search_indexes,
978
 
                                require_versioned=True):
979
 
        state = self.current_dirstate()
980
 
        found_ids = set()
981
 
 
982
 
        split_paths = sorted(osutils.split(p) for p in paths)
983
 
        found = state._bisect_recursive(split_paths)
984
 
 
985
 
        if require_versioned:
986
 
            found_dir_names = set(dir_name_id[:2] for dir_name_id in found)
987
 
            for dir_name in split_paths:
988
 
                if dir_name not in found_dir_names:
989
 
                    raise errors.PathsNotVersionedError(paths)
990
 
 
991
 
        for dir_name_id, trees_info in found.iteritems():
992
 
            for index in search_indexes:
993
 
                if trees_info[index][0] not in ('r', 'a'):
994
 
                    found_ids.add(dir_name_id[2])
995
 
        return found_ids
996
 
 
997
 
    def read_working_inventory(self):
998
 
        """Read the working inventory.
999
 
        
1000
 
        This is a meaningless operation for dirstate, but we obey it anyhow.
1001
 
        """
1002
 
        return self.inventory
1003
 
 
1004
 
    @needs_read_lock
1005
 
    def revision_tree(self, revision_id):
1006
 
        """See Tree.revision_tree.
1007
 
 
1008
 
        WorkingTree4 supplies revision_trees for any basis tree.
1009
 
        """
1010
 
        dirstate = self.current_dirstate()
1011
 
        parent_ids = dirstate.get_parent_ids()
1012
 
        if revision_id not in parent_ids:
1013
 
            raise errors.NoSuchRevisionInTree(self, revision_id)
1014
 
        if revision_id in dirstate.get_ghosts():
1015
 
            raise errors.NoSuchRevisionInTree(self, revision_id)
1016
 
        return DirStateRevisionTree(dirstate, revision_id,
1017
 
            self.branch.repository)
1018
 
 
1019
 
    @needs_tree_write_lock
1020
 
    def set_last_revision(self, new_revision):
1021
 
        """Change the last revision in the working tree."""
1022
 
        parents = self.get_parent_ids()
1023
 
        if new_revision in (NULL_REVISION, None):
1024
 
            assert len(parents) < 2, (
1025
 
                "setting the last parent to none with a pending merge is "
1026
 
                "unsupported.")
1027
 
            self.set_parent_ids([])
1028
 
        else:
1029
 
            self.set_parent_ids([new_revision] + parents[1:],
1030
 
                allow_leftmost_as_ghost=True)
1031
 
 
1032
 
    @needs_tree_write_lock
1033
 
    def set_parent_ids(self, revision_ids, allow_leftmost_as_ghost=False):
1034
 
        """Set the parent ids to revision_ids.
1035
 
        
1036
 
        See also set_parent_trees. This api will try to retrieve the tree data
1037
 
        for each element of revision_ids from the trees repository. If you have
1038
 
        tree data already available, it is more efficient to use
1039
 
        set_parent_trees rather than set_parent_ids. set_parent_ids is however
1040
 
        an easier API to use.
1041
 
 
1042
 
        :param revision_ids: The revision_ids to set as the parent ids of this
1043
 
            working tree. Any of these may be ghosts.
1044
 
        """
1045
 
        trees = []
1046
 
        for revision_id in revision_ids:
1047
 
            try:
1048
 
                revtree = self.branch.repository.revision_tree(revision_id)
1049
 
                # TODO: jam 20070213 KnitVersionedFile raises
1050
 
                #       RevisionNotPresent rather than NoSuchRevision if a
1051
 
                #       given revision_id is not present. Should Repository be
1052
 
                #       catching it and re-raising NoSuchRevision?
1053
 
            except (errors.NoSuchRevision, errors.RevisionNotPresent):
1054
 
                revtree = None
1055
 
            trees.append((revision_id, revtree))
1056
 
        self.set_parent_trees(trees,
1057
 
            allow_leftmost_as_ghost=allow_leftmost_as_ghost)
1058
 
 
1059
 
    @needs_tree_write_lock
1060
 
    def set_parent_trees(self, parents_list, allow_leftmost_as_ghost=False):
1061
 
        """Set the parents of the working tree.
1062
 
 
1063
 
        :param parents_list: A list of (revision_id, tree) tuples.
1064
 
            If tree is None, then that element is treated as an unreachable
1065
 
            parent tree - i.e. a ghost.
1066
 
        """
1067
 
        dirstate = self.current_dirstate()
1068
 
        if len(parents_list) > 0:
1069
 
            if not allow_leftmost_as_ghost and parents_list[0][1] is None:
1070
 
                raise errors.GhostRevisionUnusableHere(parents_list[0][0])
1071
 
        real_trees = []
1072
 
        ghosts = []
1073
 
        # convert absent trees to the null tree, which we convert back to
1074
 
        # missing on access.
1075
 
        for rev_id, tree in parents_list:
1076
 
            _mod_revision.check_not_reserved_id(rev_id)
1077
 
            if tree is not None:
1078
 
                real_trees.append((rev_id, tree))
1079
 
            else:
1080
 
                real_trees.append((rev_id,
1081
 
                    self.branch.repository.revision_tree(None)))
1082
 
                ghosts.append(rev_id)
1083
 
        dirstate.set_parent_trees(real_trees, ghosts=ghosts)
1084
 
        self._make_dirty(reset_inventory=False)
1085
 
 
1086
 
    def _set_root_id(self, file_id):
1087
 
        """See WorkingTree.set_root_id."""
1088
 
        state = self.current_dirstate()
1089
 
        state.set_path_id('', file_id)
1090
 
        if state._dirblock_state == dirstate.DirState.IN_MEMORY_MODIFIED:
1091
 
            self._make_dirty(reset_inventory=True)
1092
 
 
1093
 
    def _sha_from_stat(self, path, stat_result):
1094
 
        """Get a sha digest from the tree's stat cache.
1095
 
 
1096
 
        The default implementation assumes no stat cache is present.
1097
 
 
1098
 
        :param path: The path.
1099
 
        :param stat_result: The stat result being looked up.
1100
 
        """
1101
 
        return self.current_dirstate().sha1_from_stat(path, stat_result)
1102
 
 
1103
 
    @needs_read_lock
1104
 
    def supports_tree_reference(self):
1105
 
        return self._repo_supports_tree_reference
1106
 
 
1107
 
    def unlock(self):
1108
 
        """Unlock in format 4 trees needs to write the entire dirstate."""
1109
 
        # do non-implementation specific cleanup
1110
 
        self._cleanup()
1111
 
 
1112
 
        if self._control_files._lock_count == 1:
1113
 
            # eventually we should do signature checking during read locks for
1114
 
            # dirstate updates.
1115
 
            if self._control_files._lock_mode == 'w':
1116
 
                if self._dirty:
1117
 
                    self.flush()
1118
 
            if self._dirstate is not None:
1119
 
                # This is a no-op if there are no modifications.
1120
 
                self._dirstate.save()
1121
 
                self._dirstate.unlock()
1122
 
            # TODO: jam 20070301 We shouldn't have to wipe the dirstate at this
1123
 
            #       point. Instead, it could check if the header has been
1124
 
            #       modified when it is locked, and if not, it can hang on to
1125
 
            #       the data it has in memory.
1126
 
            self._dirstate = None
1127
 
            self._inventory = None
1128
 
        # reverse order of locking.
1129
 
        try:
1130
 
            return self._control_files.unlock()
1131
 
        finally:
1132
 
            self.branch.unlock()
1133
 
 
1134
 
    @needs_tree_write_lock
1135
 
    def unversion(self, file_ids):
1136
 
        """Remove the file ids in file_ids from the current versioned set.
1137
 
 
1138
 
        When a file_id is unversioned, all of its children are automatically
1139
 
        unversioned.
1140
 
 
1141
 
        :param file_ids: The file ids to stop versioning.
1142
 
        :raises: NoSuchId if any fileid is not currently versioned.
1143
 
        """
1144
 
        if not file_ids:
1145
 
            return
1146
 
        state = self.current_dirstate()
1147
 
        state._read_dirblocks_if_needed()
1148
 
        ids_to_unversion = set(file_ids)
1149
 
        paths_to_unversion = set()
1150
 
        # sketch:
1151
 
        # check if the root is to be unversioned, if so, assert for now.
1152
 
        # walk the state marking unversioned things as absent.
1153
 
        # if there are any un-unversioned ids at the end, raise
1154
 
        for key, details in state._dirblocks[0][1]:
1155
 
            if (details[0][0] not in ('a', 'r') and # absent or relocated
1156
 
                key[2] in ids_to_unversion):
1157
 
                # I haven't written the code to unversion / yet - it should be
1158
 
                # supported.
1159
 
                raise errors.BzrError('Unversioning the / is not currently supported')
1160
 
        block_index = 0
1161
 
        while block_index < len(state._dirblocks):
1162
 
            # process one directory at a time.
1163
 
            block = state._dirblocks[block_index]
1164
 
            # first check: is the path one to remove - it or its children
1165
 
            delete_block = False
1166
 
            for path in paths_to_unversion:
1167
 
                if (block[0].startswith(path) and
1168
 
                    (len(block[0]) == len(path) or
1169
 
                     block[0][len(path)] == '/')):
1170
 
                    # this entire block should be deleted - its the block for a
1171
 
                    # path to unversion; or the child of one
1172
 
                    delete_block = True
1173
 
                    break
1174
 
            # TODO: trim paths_to_unversion as we pass by paths
1175
 
            if delete_block:
1176
 
                # this block is to be deleted: process it.
1177
 
                # TODO: we can special case the no-parents case and
1178
 
                # just forget the whole block.
1179
 
                entry_index = 0
1180
 
                while entry_index < len(block[1]):
1181
 
                    # Mark this file id as having been removed
1182
 
                    entry = block[1][entry_index]
1183
 
                    ids_to_unversion.discard(entry[0][2])
1184
 
                    if (entry[1][0][0] in 'ar' # don't remove absent or renamed
1185
 
                                               # entries
1186
 
                        or not state._make_absent(entry)):
1187
 
                        entry_index += 1
1188
 
                # go to the next block. (At the moment we dont delete empty
1189
 
                # dirblocks)
1190
 
                block_index += 1
1191
 
                continue
1192
 
            entry_index = 0
1193
 
            while entry_index < len(block[1]):
1194
 
                entry = block[1][entry_index]
1195
 
                if (entry[1][0][0] in ('a', 'r') or # absent, relocated
1196
 
                    # ^ some parent row.
1197
 
                    entry[0][2] not in ids_to_unversion):
1198
 
                    # ^ not an id to unversion
1199
 
                    entry_index += 1
1200
 
                    continue
1201
 
                if entry[1][0][0] == 'd':
1202
 
                    paths_to_unversion.add(pathjoin(entry[0][0], entry[0][1]))
1203
 
                if not state._make_absent(entry):
1204
 
                    entry_index += 1
1205
 
                # we have unversioned this id
1206
 
                ids_to_unversion.remove(entry[0][2])
1207
 
            block_index += 1
1208
 
        if ids_to_unversion:
1209
 
            raise errors.NoSuchId(self, iter(ids_to_unversion).next())
1210
 
        self._make_dirty(reset_inventory=False)
1211
 
        # have to change the legacy inventory too.
1212
 
        if self._inventory is not None:
1213
 
            for file_id in file_ids:
1214
 
                self._inventory.remove_recursive_id(file_id)
1215
 
 
1216
 
    @needs_read_lock
1217
 
    def _validate(self):
1218
 
        self._dirstate._validate()
1219
 
 
1220
 
    @needs_tree_write_lock
1221
 
    def _write_inventory(self, inv):
1222
 
        """Write inventory as the current inventory."""
1223
 
        assert not self._dirty, "attempting to write an inventory when the dirstate is dirty will cause data loss"
1224
 
        self.current_dirstate().set_state_from_inventory(inv)
1225
 
        self._make_dirty(reset_inventory=False)
1226
 
        if self._inventory is not None:
1227
 
            self._inventory = inv
1228
 
        self.flush()
1229
 
 
1230
 
 
1231
 
class WorkingTreeFormat4(WorkingTreeFormat3):
1232
 
    """The first consolidated dirstate working tree format.
1233
 
 
1234
 
    This format:
1235
 
        - exists within a metadir controlling .bzr
1236
 
        - includes an explicit version marker for the workingtree control
1237
 
          files, separate from the BzrDir format
1238
 
        - modifies the hash cache format
1239
 
        - is new in bzr 0.15
1240
 
        - uses a LockDir to guard access to it.
1241
 
    """
1242
 
 
1243
 
    upgrade_recommended = False
1244
 
 
1245
 
    def get_format_string(self):
1246
 
        """See WorkingTreeFormat.get_format_string()."""
1247
 
        return "Bazaar Working Tree Format 4 (bzr 0.15)\n"
1248
 
 
1249
 
    def get_format_description(self):
1250
 
        """See WorkingTreeFormat.get_format_description()."""
1251
 
        return "Working tree format 4"
1252
 
 
1253
 
    def initialize(self, a_bzrdir, revision_id=None):
1254
 
        """See WorkingTreeFormat.initialize().
1255
 
 
1256
 
        :param revision_id: allows creating a working tree at a different
1257
 
        revision than the branch is at.
1258
 
 
1259
 
        These trees get an initial random root id, if their repository supports
1260
 
        rich root data, TREE_ROOT otherwise.
1261
 
        """
1262
 
        if not isinstance(a_bzrdir.transport, LocalTransport):
1263
 
            raise errors.NotLocalUrl(a_bzrdir.transport.base)
1264
 
        transport = a_bzrdir.get_workingtree_transport(self)
1265
 
        control_files = self._open_control_files(a_bzrdir)
1266
 
        control_files.create_lock()
1267
 
        control_files.lock_write()
1268
 
        control_files.put_utf8('format', self.get_format_string())
1269
 
        branch = a_bzrdir.open_branch()
1270
 
        if revision_id is None:
1271
 
            revision_id = branch.last_revision()
1272
 
        local_path = transport.local_abspath('dirstate')
1273
 
        # write out new dirstate (must exist when we create the tree)
1274
 
        state = dirstate.DirState.initialize(local_path)
1275
 
        state.unlock()
1276
 
        del state
1277
 
        wt = WorkingTree4(a_bzrdir.root_transport.local_abspath('.'),
1278
 
                         branch,
1279
 
                         _format=self,
1280
 
                         _bzrdir=a_bzrdir,
1281
 
                         _control_files=control_files)
1282
 
        wt._new_tree()
1283
 
        wt.lock_tree_write()
1284
 
        try:
1285
 
            if revision_id in (None, NULL_REVISION):
1286
 
                if branch.repository.supports_rich_root():
1287
 
                    wt._set_root_id(generate_ids.gen_root_id())
1288
 
                else:
1289
 
                    wt._set_root_id(ROOT_ID)
1290
 
                wt.flush()
1291
 
            wt.set_last_revision(revision_id)
1292
 
            wt.flush()
1293
 
            basis = wt.basis_tree()
1294
 
            basis.lock_read()
1295
 
            # if the basis has a root id we have to use that; otherwise we use
1296
 
            # a new random one
1297
 
            basis_root_id = basis.get_root_id()
1298
 
            if basis_root_id is not None:
1299
 
                wt._set_root_id(basis_root_id)
1300
 
                wt.flush()
1301
 
            transform.build_tree(basis, wt)
1302
 
            basis.unlock()
1303
 
        finally:
1304
 
            control_files.unlock()
1305
 
            wt.unlock()
1306
 
        return wt
1307
 
 
1308
 
    def _open(self, a_bzrdir, control_files):
1309
 
        """Open the tree itself.
1310
 
 
1311
 
        :param a_bzrdir: the dir for the tree.
1312
 
        :param control_files: the control files for the tree.
1313
 
        """
1314
 
        return WorkingTree4(a_bzrdir.root_transport.local_abspath('.'),
1315
 
                           branch=a_bzrdir.open_branch(),
1316
 
                           _format=self,
1317
 
                           _bzrdir=a_bzrdir,
1318
 
                           _control_files=control_files)
1319
 
 
1320
 
    def __get_matchingbzrdir(self):
1321
 
        # please test against something that will let us do tree references
1322
 
        return bzrdir.format_registry.make_bzrdir(
1323
 
            'dirstate-with-subtree')
1324
 
 
1325
 
    _matchingbzrdir = property(__get_matchingbzrdir)
1326
 
 
1327
 
 
1328
 
class DirStateRevisionTree(Tree):
1329
 
    """A revision tree pulling the inventory from a dirstate."""
1330
 
 
1331
 
    def __init__(self, dirstate, revision_id, repository):
1332
 
        self._dirstate = dirstate
1333
 
        self._revision_id = revision_id
1334
 
        self._repository = repository
1335
 
        self._inventory = None
1336
 
        self._locked = 0
1337
 
        self._dirstate_locked = False
1338
 
 
1339
 
    def __repr__(self):
1340
 
        return "<%s of %s in %s>" % \
1341
 
            (self.__class__.__name__, self._revision_id, self._dirstate)
1342
 
 
1343
 
    def annotate_iter(self, file_id,
1344
 
                      default_revision=_mod_revision.CURRENT_REVISION):
1345
 
        """See Tree.annotate_iter"""
1346
 
        w = self._get_weave(file_id)
1347
 
        return w.annotate_iter(self.inventory[file_id].revision)
1348
 
 
1349
 
    def _get_ancestors(self, default_revision):
1350
 
        return set(self._repository.get_ancestry(self._revision_id,
1351
 
                                                 topo_sorted=False))
1352
 
    def _comparison_data(self, entry, path):
1353
 
        """See Tree._comparison_data."""
1354
 
        if entry is None:
1355
 
            return None, False, None
1356
 
        # trust the entry as RevisionTree does, but this may not be
1357
 
        # sensible: the entry might not have come from us?
1358
 
        return entry.kind, entry.executable, None
1359
 
 
1360
 
    def _file_size(self, entry, stat_value):
1361
 
        return entry.text_size
1362
 
 
1363
 
    def filter_unversioned_files(self, paths):
1364
 
        """Filter out paths that are not versioned.
1365
 
 
1366
 
        :return: set of paths.
1367
 
        """
1368
 
        pred = self.has_filename
1369
 
        return set((p for p in paths if not pred(p)))
1370
 
 
1371
 
    def get_root_id(self):
1372
 
        return self.path2id('')
1373
 
 
1374
 
    def _get_parent_index(self):
1375
 
        """Return the index in the dirstate referenced by this tree."""
1376
 
        return self._dirstate.get_parent_ids().index(self._revision_id) + 1
1377
 
 
1378
 
    def _get_entry(self, file_id=None, path=None):
1379
 
        """Get the dirstate row for file_id or path.
1380
 
 
1381
 
        If either file_id or path is supplied, it is used as the key to lookup.
1382
 
        If both are supplied, the fastest lookup is used, and an error is
1383
 
        raised if they do not both point at the same row.
1384
 
        
1385
 
        :param file_id: An optional unicode file_id to be looked up.
1386
 
        :param path: An optional unicode path to be looked up.
1387
 
        :return: The dirstate row tuple for path/file_id, or (None, None)
1388
 
        """
1389
 
        if file_id is None and path is None:
1390
 
            raise errors.BzrError('must supply file_id or path')
1391
 
        if path is not None:
1392
 
            path = path.encode('utf8')
1393
 
        parent_index = self._get_parent_index()
1394
 
        return self._dirstate._get_entry(parent_index, fileid_utf8=file_id, path_utf8=path)
1395
 
 
1396
 
    def _generate_inventory(self):
1397
 
        """Create and set self.inventory from the dirstate object.
1398
 
 
1399
 
        (So this is only called the first time the inventory is requested for
1400
 
        this tree; it then remains in memory until it's out of date.)
1401
 
 
1402
 
        This is relatively expensive: we have to walk the entire dirstate.
1403
 
        """
1404
 
        assert self._locked, 'cannot generate inventory of an unlocked '\
1405
 
            'dirstate revision tree'
1406
 
        # separate call for profiling - makes it clear where the costs are.
1407
 
        self._dirstate._read_dirblocks_if_needed()
1408
 
        assert self._revision_id in self._dirstate.get_parent_ids(), \
1409
 
            'parent %s has disappeared from %s' % (
1410
 
            self._revision_id, self._dirstate.get_parent_ids())
1411
 
        parent_index = self._dirstate.get_parent_ids().index(self._revision_id) + 1
1412
 
        # This is identical now to the WorkingTree _generate_inventory except
1413
 
        # for the tree index use.
1414
 
        root_key, current_entry = self._dirstate._get_entry(parent_index, path_utf8='')
1415
 
        current_id = root_key[2]
1416
 
        assert current_entry[parent_index][0] == 'd'
1417
 
        inv = Inventory(root_id=current_id, revision_id=self._revision_id)
1418
 
        inv.root.revision = current_entry[parent_index][4]
1419
 
        # Turn some things into local variables
1420
 
        minikind_to_kind = dirstate.DirState._minikind_to_kind
1421
 
        factory = entry_factory
1422
 
        utf8_decode = cache_utf8._utf8_decode
1423
 
        inv_byid = inv._byid
1424
 
        # we could do this straight out of the dirstate; it might be fast
1425
 
        # and should be profiled - RBC 20070216
1426
 
        parent_ies = {'' : inv.root}
1427
 
        for block in self._dirstate._dirblocks[1:]: #skip root
1428
 
            dirname = block[0]
1429
 
            try:
1430
 
                parent_ie = parent_ies[dirname]
1431
 
            except KeyError:
1432
 
                # all the paths in this block are not versioned in this tree
1433
 
                continue
1434
 
            for key, entry in block[1]:
1435
 
                minikind, fingerprint, size, executable, revid = entry[parent_index]
1436
 
                if minikind in ('a', 'r'): # absent, relocated
1437
 
                    # not this tree
1438
 
                    continue
1439
 
                name = key[1]
1440
 
                name_unicode = utf8_decode(name)[0]
1441
 
                file_id = key[2]
1442
 
                kind = minikind_to_kind[minikind]
1443
 
                inv_entry = factory[kind](file_id, name_unicode,
1444
 
                                          parent_ie.file_id)
1445
 
                inv_entry.revision = revid
1446
 
                if kind == 'file':
1447
 
                    inv_entry.executable = executable
1448
 
                    inv_entry.text_size = size
1449
 
                    inv_entry.text_sha1 = fingerprint
1450
 
                elif kind == 'directory':
1451
 
                    parent_ies[(dirname + '/' + name).strip('/')] = inv_entry
1452
 
                elif kind == 'symlink':
1453
 
                    inv_entry.executable = False
1454
 
                    inv_entry.text_size = None
1455
 
                    inv_entry.symlink_target = utf8_decode(fingerprint)[0]
1456
 
                elif kind == 'tree-reference':
1457
 
                    inv_entry.reference_revision = fingerprint or None
1458
 
                else:
1459
 
                    raise AssertionError("cannot convert entry %r into an InventoryEntry"
1460
 
                            % entry)
1461
 
                # These checks cost us around 40ms on a 55k entry tree
1462
 
                assert file_id not in inv_byid
1463
 
                assert name_unicode not in parent_ie.children
1464
 
                inv_byid[file_id] = inv_entry
1465
 
                parent_ie.children[name_unicode] = inv_entry
1466
 
        self._inventory = inv
1467
 
 
1468
 
    def get_file_mtime(self, file_id, path=None):
1469
 
        """Return the modification time for this record.
1470
 
 
1471
 
        We return the timestamp of the last-changed revision.
1472
 
        """
1473
 
        # Make sure the file exists
1474
 
        entry = self._get_entry(file_id, path=path)
1475
 
        if entry == (None, None): # do we raise?
1476
 
            return None
1477
 
        parent_index = self._get_parent_index()
1478
 
        last_changed_revision = entry[1][parent_index][4]
1479
 
        return self._repository.get_revision(last_changed_revision).timestamp
1480
 
 
1481
 
    def get_file_sha1(self, file_id, path=None, stat_value=None):
1482
 
        entry = self._get_entry(file_id=file_id, path=path)
1483
 
        parent_index = self._get_parent_index()
1484
 
        parent_details = entry[1][parent_index]
1485
 
        if parent_details[0] == 'f':
1486
 
            return parent_details[1]
1487
 
        return None
1488
 
 
1489
 
    @symbol_versioning.deprecated_method(symbol_versioning.zero_ninety)
1490
 
    def get_weave(self, file_id):
1491
 
        return self._get_weave(file_id)
1492
 
 
1493
 
    def _get_weave(self, file_id):
1494
 
        return self._repository.weave_store.get_weave(file_id,
1495
 
                self._repository.get_transaction())
1496
 
 
1497
 
    def get_file(self, file_id, path=None):
1498
 
        return StringIO(self.get_file_text(file_id))
1499
 
 
1500
 
    def get_file_lines(self, file_id):
1501
 
        ie = self.inventory[file_id]
1502
 
        return self._get_weave(file_id).get_lines(ie.revision)
1503
 
 
1504
 
    def get_file_size(self, file_id):
1505
 
        return self.inventory[file_id].text_size
1506
 
 
1507
 
    def get_file_text(self, file_id):
1508
 
        return ''.join(self.get_file_lines(file_id))
1509
 
 
1510
 
    def get_reference_revision(self, file_id, path=None):
1511
 
        return self.inventory[file_id].reference_revision
1512
 
 
1513
 
    def iter_files_bytes(self, desired_files):
1514
 
        """See Tree.iter_files_bytes.
1515
 
 
1516
 
        This version is implemented on top of Repository.iter_files_bytes"""
1517
 
        parent_index = self._get_parent_index()
1518
 
        repo_desired_files = []
1519
 
        for file_id, identifier in desired_files:
1520
 
            entry = self._get_entry(file_id)
1521
 
            if entry == (None, None):
1522
 
                raise errors.NoSuchId(self, file_id)
1523
 
            repo_desired_files.append((file_id, entry[1][parent_index][4],
1524
 
                                       identifier))
1525
 
        return self._repository.iter_files_bytes(repo_desired_files)
1526
 
 
1527
 
    def get_symlink_target(self, file_id):
1528
 
        entry = self._get_entry(file_id=file_id)
1529
 
        parent_index = self._get_parent_index()
1530
 
        if entry[1][parent_index][0] != 'l':
1531
 
            return None
1532
 
        else:
1533
 
            # At present, none of the tree implementations supports non-ascii
1534
 
            # symlink targets. So we will just assume that the dirstate path is
1535
 
            # correct.
1536
 
            return entry[1][parent_index][1]
1537
 
 
1538
 
    def get_revision_id(self):
1539
 
        """Return the revision id for this tree."""
1540
 
        return self._revision_id
1541
 
 
1542
 
    def _get_inventory(self):
1543
 
        if self._inventory is not None:
1544
 
            return self._inventory
1545
 
        self._must_be_locked()
1546
 
        self._generate_inventory()
1547
 
        return self._inventory
1548
 
 
1549
 
    inventory = property(_get_inventory,
1550
 
                         doc="Inventory of this Tree")
1551
 
 
1552
 
    def get_parent_ids(self):
1553
 
        """The parents of a tree in the dirstate are not cached."""
1554
 
        return self._repository.get_revision(self._revision_id).parent_ids
1555
 
 
1556
 
    def has_filename(self, filename):
1557
 
        return bool(self.path2id(filename))
1558
 
 
1559
 
    def kind(self, file_id):
1560
 
        return self.inventory[file_id].kind
1561
 
 
1562
 
    def path_content_summary(self, path):
1563
 
        """See Tree.path_content_summary."""
1564
 
        id = self.inventory.path2id(path)
1565
 
        if id is None:
1566
 
            return ('missing', None, None, None)
1567
 
        entry = self._inventory[id]
1568
 
        kind = entry.kind
1569
 
        if kind == 'file':
1570
 
            return (kind, entry.text_size, entry.executable, entry.text_sha1)
1571
 
        elif kind == 'symlink':
1572
 
            return (kind, None, None, entry.symlink_target)
1573
 
        else:
1574
 
            return (kind, None, None, None)
1575
 
 
1576
 
    def is_executable(self, file_id, path=None):
1577
 
        ie = self.inventory[file_id]
1578
 
        if ie.kind != "file":
1579
 
            return None
1580
 
        return ie.executable
1581
 
 
1582
 
    def list_files(self, include_root=False):
1583
 
        # We use a standard implementation, because DirStateRevisionTree is
1584
 
        # dealing with one of the parents of the current state
1585
 
        inv = self._get_inventory()
1586
 
        entries = inv.iter_entries()
1587
 
        if self.inventory.root is not None and not include_root:
1588
 
            entries.next()
1589
 
        for path, entry in entries:
1590
 
            yield path, 'V', entry.kind, entry.file_id, entry
1591
 
 
1592
 
    def lock_read(self):
1593
 
        """Lock the tree for a set of operations."""
1594
 
        if not self._locked:
1595
 
            self._repository.lock_read()
1596
 
            if self._dirstate._lock_token is None:
1597
 
                self._dirstate.lock_read()
1598
 
                self._dirstate_locked = True
1599
 
        self._locked += 1
1600
 
 
1601
 
    def _must_be_locked(self):
1602
 
        if not self._locked:
1603
 
            raise errors.ObjectNotLocked(self)
1604
 
 
1605
 
    @needs_read_lock
1606
 
    def path2id(self, path):
1607
 
        """Return the id for path in this tree."""
1608
 
        # lookup by path: faster than splitting and walking the ivnentory.
1609
 
        entry = self._get_entry(path=path)
1610
 
        if entry == (None, None):
1611
 
            return None
1612
 
        return entry[0][2]
1613
 
 
1614
 
    def unlock(self):
1615
 
        """Unlock, freeing any cache memory used during the lock."""
1616
 
        # outside of a lock, the inventory is suspect: release it.
1617
 
        self._locked -=1
1618
 
        if not self._locked:
1619
 
            self._inventory = None
1620
 
            self._locked = 0
1621
 
            if self._dirstate_locked:
1622
 
                self._dirstate.unlock()
1623
 
                self._dirstate_locked = False
1624
 
            self._repository.unlock()
1625
 
 
1626
 
    def walkdirs(self, prefix=""):
1627
 
        # TODO: jam 20070215 This is the lazy way by using the RevisionTree
1628
 
        # implementation based on an inventory.  
1629
 
        # This should be cleaned up to use the much faster Dirstate code
1630
 
        # So for now, we just build up the parent inventory, and extract
1631
 
        # it the same way RevisionTree does.
1632
 
        _directory = 'directory'
1633
 
        inv = self._get_inventory()
1634
 
        top_id = inv.path2id(prefix)
1635
 
        if top_id is None:
1636
 
            pending = []
1637
 
        else:
1638
 
            pending = [(prefix, top_id)]
1639
 
        while pending:
1640
 
            dirblock = []
1641
 
            relpath, file_id = pending.pop()
1642
 
            # 0 - relpath, 1- file-id
1643
 
            if relpath:
1644
 
                relroot = relpath + '/'
1645
 
            else:
1646
 
                relroot = ""
1647
 
            # FIXME: stash the node in pending
1648
 
            entry = inv[file_id]
1649
 
            for name, child in entry.sorted_children():
1650
 
                toppath = relroot + name
1651
 
                dirblock.append((toppath, name, child.kind, None,
1652
 
                    child.file_id, child.kind
1653
 
                    ))
1654
 
            yield (relpath, entry.file_id), dirblock
1655
 
            # push the user specified dirs from dirblock
1656
 
            for dir in reversed(dirblock):
1657
 
                if dir[2] == _directory:
1658
 
                    pending.append((dir[0], dir[4]))
1659
 
 
1660
 
 
1661
 
class InterDirStateTree(InterTree):
1662
 
    """Fast path optimiser for changes_from with dirstate trees.
1663
 
    
1664
 
    This is used only when both trees are in the dirstate working file, and 
1665
 
    the source is any parent within the dirstate, and the destination is 
1666
 
    the current working tree of the same dirstate.
1667
 
    """
1668
 
    # this could be generalized to allow comparisons between any trees in the
1669
 
    # dirstate, and possibly between trees stored in different dirstates.
1670
 
 
1671
 
    def __init__(self, source, target):
1672
 
        super(InterDirStateTree, self).__init__(source, target)
1673
 
        if not InterDirStateTree.is_compatible(source, target):
1674
 
            raise Exception, "invalid source %r and target %r" % (source, target)
1675
 
 
1676
 
    @staticmethod
1677
 
    def make_source_parent_tree(source, target):
1678
 
        """Change the source tree into a parent of the target."""
1679
 
        revid = source.commit('record tree')
1680
 
        target.branch.repository.fetch(source.branch.repository, revid)
1681
 
        target.set_parent_ids([revid])
1682
 
        return target.basis_tree(), target
1683
 
 
1684
 
    _matching_from_tree_format = WorkingTreeFormat4()
1685
 
    _matching_to_tree_format = WorkingTreeFormat4()
1686
 
    _test_mutable_trees_to_test_trees = make_source_parent_tree
1687
 
 
1688
 
    def _iter_changes(self, include_unchanged=False,
1689
 
                      specific_files=None, pb=None, extra_trees=[],
1690
 
                      require_versioned=True, want_unversioned=False):
1691
 
        """Return the changes from source to target.
1692
 
 
1693
 
        :return: An iterator that yields tuples. See InterTree._iter_changes
1694
 
            for details.
1695
 
        :param specific_files: An optional list of file paths to restrict the
1696
 
            comparison to. When mapping filenames to ids, all matches in all
1697
 
            trees (including optional extra_trees) are used, and all children of
1698
 
            matched directories are included.
1699
 
        :param include_unchanged: An optional boolean requesting the inclusion of
1700
 
            unchanged entries in the result.
1701
 
        :param extra_trees: An optional list of additional trees to use when
1702
 
            mapping the contents of specific_files (paths) to file_ids.
1703
 
        :param require_versioned: If True, all files in specific_files must be
1704
 
            versioned in one of source, target, extra_trees or
1705
 
            PathsNotVersionedError is raised.
1706
 
        :param want_unversioned: Should unversioned files be returned in the
1707
 
            output. An unversioned file is defined as one with (False, False)
1708
 
            for the versioned pair.
1709
 
        """
1710
 
        utf8_decode = cache_utf8._utf8_decode
1711
 
        _minikind_to_kind = dirstate.DirState._minikind_to_kind
1712
 
        cmp_by_dirs = dirstate.cmp_by_dirs
1713
 
        # NB: show_status depends on being able to pass in non-versioned files
1714
 
        # and report them as unknown
1715
 
        # TODO: handle extra trees in the dirstate.
1716
 
        # TODO: handle comparisons as an empty tree as a different special
1717
 
        # case? mbp 20070226
1718
 
        if (extra_trees or (self.source._revision_id == NULL_REVISION)
1719
 
            or specific_files == []):
1720
 
            # we can't fast-path these cases (yet)
1721
 
            for f in super(InterDirStateTree, self)._iter_changes(
1722
 
                include_unchanged, specific_files, pb, extra_trees,
1723
 
                require_versioned, want_unversioned=want_unversioned):
1724
 
                yield f
1725
 
            return
1726
 
        parent_ids = self.target.get_parent_ids()
1727
 
        assert (self.source._revision_id in parent_ids), \
1728
 
                "revision {%s} is not stored in {%s}, but %s " \
1729
 
                "can only be used for trees stored in the dirstate" \
1730
 
                % (self.source._revision_id, self.target, self._iter_changes)
1731
 
        target_index = 0
1732
 
        if self.source._revision_id == NULL_REVISION:
1733
 
            source_index = None
1734
 
            indices = (target_index,)
1735
 
        else:
1736
 
            assert (self.source._revision_id in parent_ids), \
1737
 
                "Failure: source._revision_id: %s not in target.parent_ids(%s)" % (
1738
 
                self.source._revision_id, parent_ids)
1739
 
            source_index = 1 + parent_ids.index(self.source._revision_id)
1740
 
            indices = (source_index,target_index)
1741
 
        # -- make all specific_files utf8 --
1742
 
        if specific_files:
1743
 
            specific_files_utf8 = set()
1744
 
            for path in specific_files:
1745
 
                specific_files_utf8.add(path.encode('utf8'))
1746
 
            specific_files = specific_files_utf8
1747
 
        else:
1748
 
            specific_files = set([''])
1749
 
        # -- specific_files is now a utf8 path set --
1750
 
        # -- get the state object and prepare it.
1751
 
        state = self.target.current_dirstate()
1752
 
        state._read_dirblocks_if_needed()
1753
 
        def _entries_for_path(path):
1754
 
            """Return a list with all the entries that match path for all ids.
1755
 
            """
1756
 
            dirname, basename = os.path.split(path)
1757
 
            key = (dirname, basename, '')
1758
 
            block_index, present = state._find_block_index_from_key(key)
1759
 
            if not present:
1760
 
                # the block which should contain path is absent.
1761
 
                return []
1762
 
            result = []
1763
 
            block = state._dirblocks[block_index][1]
1764
 
            entry_index, _ = state._find_entry_index(key, block)
1765
 
            # we may need to look at multiple entries at this path: walk while the specific_files match.
1766
 
            while (entry_index < len(block) and
1767
 
                block[entry_index][0][0:2] == key[0:2]):
1768
 
                result.append(block[entry_index])
1769
 
                entry_index += 1
1770
 
            return result
1771
 
        if require_versioned:
1772
 
            # -- check all supplied paths are versioned in a search tree. --
1773
 
            all_versioned = True
1774
 
            for path in specific_files:
1775
 
                path_entries = _entries_for_path(path)
1776
 
                if not path_entries:
1777
 
                    # this specified path is not present at all: error
1778
 
                    all_versioned = False
1779
 
                    break
1780
 
                found_versioned = False
1781
 
                # for each id at this path
1782
 
                for entry in path_entries:
1783
 
                    # for each tree.
1784
 
                    for index in indices:
1785
 
                        if entry[1][index][0] != 'a': # absent
1786
 
                            found_versioned = True
1787
 
                            # all good: found a versioned cell
1788
 
                            break
1789
 
                if not found_versioned:
1790
 
                    # none of the indexes was not 'absent' at all ids for this
1791
 
                    # path.
1792
 
                    all_versioned = False
1793
 
                    break
1794
 
            if not all_versioned:
1795
 
                raise errors.PathsNotVersionedError(specific_files)
1796
 
        # -- remove redundancy in supplied specific_files to prevent over-scanning --
1797
 
        search_specific_files = set()
1798
 
        for path in specific_files:
1799
 
            other_specific_files = specific_files.difference(set([path]))
1800
 
            if not osutils.is_inside_any(other_specific_files, path):
1801
 
                # this is a top level path, we must check it.
1802
 
                search_specific_files.add(path)
1803
 
        # sketch: 
1804
 
        # compare source_index and target_index at or under each element of search_specific_files.
1805
 
        # follow the following comparison table. Note that we only want to do diff operations when
1806
 
        # the target is fdl because thats when the walkdirs logic will have exposed the pathinfo 
1807
 
        # for the target.
1808
 
        # cases:
1809
 
        # 
1810
 
        # Source | Target | disk | action
1811
 
        #   r    | fdlt   |      | add source to search, add id path move and perform
1812
 
        #        |        |      | diff check on source-target
1813
 
        #   r    | fdlt   |  a   | dangling file that was present in the basis. 
1814
 
        #        |        |      | ???
1815
 
        #   r    |  a     |      | add source to search
1816
 
        #   r    |  a     |  a   | 
1817
 
        #   r    |  r     |      | this path is present in a non-examined tree, skip.
1818
 
        #   r    |  r     |  a   | this path is present in a non-examined tree, skip.
1819
 
        #   a    | fdlt   |      | add new id
1820
 
        #   a    | fdlt   |  a   | dangling locally added file, skip
1821
 
        #   a    |  a     |      | not present in either tree, skip
1822
 
        #   a    |  a     |  a   | not present in any tree, skip
1823
 
        #   a    |  r     |      | not present in either tree at this path, skip as it
1824
 
        #        |        |      | may not be selected by the users list of paths.
1825
 
        #   a    |  r     |  a   | not present in either tree at this path, skip as it
1826
 
        #        |        |      | may not be selected by the users list of paths.
1827
 
        #  fdlt  | fdlt   |      | content in both: diff them
1828
 
        #  fdlt  | fdlt   |  a   | deleted locally, but not unversioned - show as deleted ?
1829
 
        #  fdlt  |  a     |      | unversioned: output deleted id for now
1830
 
        #  fdlt  |  a     |  a   | unversioned and deleted: output deleted id
1831
 
        #  fdlt  |  r     |      | relocated in this tree, so add target to search.
1832
 
        #        |        |      | Dont diff, we will see an r,fd; pair when we reach
1833
 
        #        |        |      | this id at the other path.
1834
 
        #  fdlt  |  r     |  a   | relocated in this tree, so add target to search.
1835
 
        #        |        |      | Dont diff, we will see an r,fd; pair when we reach
1836
 
        #        |        |      | this id at the other path.
1837
 
 
1838
 
        # for all search_indexs in each path at or under each element of
1839
 
        # search_specific_files, if the detail is relocated: add the id, and add the
1840
 
        # relocated path as one to search if its not searched already. If the
1841
 
        # detail is not relocated, add the id.
1842
 
        searched_specific_files = set()
1843
 
        NULL_PARENT_DETAILS = dirstate.DirState.NULL_PARENT_DETAILS
1844
 
        # Using a list so that we can access the values and change them in
1845
 
        # nested scope. Each one is [path, file_id, entry]
1846
 
        last_source_parent = [None, None]
1847
 
        last_target_parent = [None, None]
1848
 
 
1849
 
        use_filesystem_for_exec = (sys.platform != 'win32')
1850
 
 
1851
 
        # Just a sentry, so that _process_entry can say that this
1852
 
        # record is handled, but isn't interesting to process (unchanged)
1853
 
        uninteresting = object()
1854
 
 
1855
 
 
1856
 
        old_dirname_to_file_id = {}
1857
 
        new_dirname_to_file_id = {}
1858
 
        # TODO: jam 20070516 - Avoid the _get_entry lookup overhead by
1859
 
        #       keeping a cache of directories that we have seen.
1860
 
 
1861
 
        def _process_entry(entry, path_info):
1862
 
            """Compare an entry and real disk to generate delta information.
1863
 
 
1864
 
            :param path_info: top_relpath, basename, kind, lstat, abspath for
1865
 
                the path of entry. If None, then the path is considered absent.
1866
 
                (Perhaps we should pass in a concrete entry for this ?)
1867
 
                Basename is returned as a utf8 string because we expect this
1868
 
                tuple will be ignored, and don't want to take the time to
1869
 
                decode.
1870
 
            :return: None if these don't match
1871
 
                     A tuple of information about the change, or
1872
 
                     the object 'uninteresting' if these match, but are
1873
 
                     basically identical.
1874
 
            """
1875
 
            if source_index is None:
1876
 
                source_details = NULL_PARENT_DETAILS
1877
 
            else:
1878
 
                source_details = entry[1][source_index]
1879
 
            target_details = entry[1][target_index]
1880
 
            target_minikind = target_details[0]
1881
 
            if path_info is not None and target_minikind in 'fdlt':
1882
 
                assert target_index == 0
1883
 
                link_or_sha1 = state.update_entry(entry, abspath=path_info[4],
1884
 
                                                  stat_value=path_info[3])
1885
 
                # The entry may have been modified by update_entry
1886
 
                target_details = entry[1][target_index]
1887
 
                target_minikind = target_details[0]
1888
 
            else:
1889
 
                link_or_sha1 = None
1890
 
            file_id = entry[0][2]
1891
 
            source_minikind = source_details[0]
1892
 
            if source_minikind in 'fdltr' and target_minikind in 'fdlt':
1893
 
                # claimed content in both: diff
1894
 
                #   r    | fdlt   |      | add source to search, add id path move and perform
1895
 
                #        |        |      | diff check on source-target
1896
 
                #   r    | fdlt   |  a   | dangling file that was present in the basis.
1897
 
                #        |        |      | ???
1898
 
                if source_minikind in 'r':
1899
 
                    # add the source to the search path to find any children it
1900
 
                    # has.  TODO ? : only add if it is a container ?
1901
 
                    if not osutils.is_inside_any(searched_specific_files,
1902
 
                                                 source_details[1]):
1903
 
                        search_specific_files.add(source_details[1])
1904
 
                    # generate the old path; this is needed for stating later
1905
 
                    # as well.
1906
 
                    old_path = source_details[1]
1907
 
                    old_dirname, old_basename = os.path.split(old_path)
1908
 
                    path = pathjoin(entry[0][0], entry[0][1])
1909
 
                    old_entry = state._get_entry(source_index,
1910
 
                                                 path_utf8=old_path)
1911
 
                    # update the source details variable to be the real
1912
 
                    # location.
1913
 
                    source_details = old_entry[1][source_index]
1914
 
                    source_minikind = source_details[0]
1915
 
                else:
1916
 
                    old_dirname = entry[0][0]
1917
 
                    old_basename = entry[0][1]
1918
 
                    old_path = path = None
1919
 
                if path_info is None:
1920
 
                    # the file is missing on disk, show as removed.
1921
 
                    content_change = True
1922
 
                    target_kind = None
1923
 
                    target_exec = False
1924
 
                else:
1925
 
                    # source and target are both versioned and disk file is present.
1926
 
                    target_kind = path_info[2]
1927
 
                    if target_kind == 'directory':
1928
 
                        if path is None:
1929
 
                            old_path = path = pathjoin(old_dirname, old_basename)
1930
 
                        new_dirname_to_file_id[path] = file_id
1931
 
                        if source_minikind != 'd':
1932
 
                            content_change = True
1933
 
                        else:
1934
 
                            # directories have no fingerprint
1935
 
                            content_change = False
1936
 
                        target_exec = False
1937
 
                    elif target_kind == 'file':
1938
 
                        if source_minikind != 'f':
1939
 
                            content_change = True
1940
 
                        else:
1941
 
                            # We could check the size, but we already have the
1942
 
                            # sha1 hash.
1943
 
                            content_change = (link_or_sha1 != source_details[1])
1944
 
                        # Target details is updated at update_entry time
1945
 
                        if use_filesystem_for_exec:
1946
 
                            # We don't need S_ISREG here, because we are sure
1947
 
                            # we are dealing with a file.
1948
 
                            target_exec = bool(stat.S_IEXEC & path_info[3].st_mode)
1949
 
                        else:
1950
 
                            target_exec = target_details[3]
1951
 
                    elif target_kind == 'symlink':
1952
 
                        if source_minikind != 'l':
1953
 
                            content_change = True
1954
 
                        else:
1955
 
                            content_change = (link_or_sha1 != source_details[1])
1956
 
                        target_exec = False
1957
 
                    elif target_kind == 'tree-reference':
1958
 
                        if source_minikind != 't':
1959
 
                            content_change = True
1960
 
                        else:
1961
 
                            content_change = False
1962
 
                        target_exec = False
1963
 
                    else:
1964
 
                        raise Exception, "unknown kind %s" % path_info[2]
1965
 
                if source_minikind == 'd':
1966
 
                    if path is None:
1967
 
                        old_path = path = pathjoin(old_dirname, old_basename)
1968
 
                    old_dirname_to_file_id[old_path] = file_id
1969
 
                # parent id is the entry for the path in the target tree
1970
 
                if old_dirname == last_source_parent[0]:
1971
 
                    source_parent_id = last_source_parent[1]
1972
 
                else:
1973
 
                    try:
1974
 
                        source_parent_id = old_dirname_to_file_id[old_dirname]
1975
 
                    except KeyError:
1976
 
                        source_parent_entry = state._get_entry(source_index,
1977
 
                                                               path_utf8=old_dirname)
1978
 
                        source_parent_id = source_parent_entry[0][2]
1979
 
                    if source_parent_id == entry[0][2]:
1980
 
                        # This is the root, so the parent is None
1981
 
                        source_parent_id = None
1982
 
                    else:
1983
 
                        last_source_parent[0] = old_dirname
1984
 
                        last_source_parent[1] = source_parent_id
1985
 
                new_dirname = entry[0][0]
1986
 
                if new_dirname == last_target_parent[0]:
1987
 
                    target_parent_id = last_target_parent[1]
1988
 
                else:
1989
 
                    try:
1990
 
                        target_parent_id = new_dirname_to_file_id[new_dirname]
1991
 
                    except KeyError:
1992
 
                        # TODO: We don't always need to do the lookup, because the
1993
 
                        #       parent entry will be the same as the source entry.
1994
 
                        target_parent_entry = state._get_entry(target_index,
1995
 
                                                               path_utf8=new_dirname)
1996
 
                        assert target_parent_entry != (None, None), (
1997
 
                            "Could not find target parent in wt: %s\nparent of: %s"
1998
 
                            % (new_dirname, entry))
1999
 
                        target_parent_id = target_parent_entry[0][2]
2000
 
                    if target_parent_id == entry[0][2]:
2001
 
                        # This is the root, so the parent is None
2002
 
                        target_parent_id = None
2003
 
                    else:
2004
 
                        last_target_parent[0] = new_dirname
2005
 
                        last_target_parent[1] = target_parent_id
2006
 
 
2007
 
                source_exec = source_details[3]
2008
 
                if (include_unchanged
2009
 
                    or content_change
2010
 
                    or source_parent_id != target_parent_id
2011
 
                    or old_basename != entry[0][1]
2012
 
                    or source_exec != target_exec
2013
 
                    ):
2014
 
                    if old_path is None:
2015
 
                        old_path = path = pathjoin(old_dirname, old_basename)
2016
 
                        old_path_u = utf8_decode(old_path)[0]
2017
 
                        path_u = old_path_u
2018
 
                    else:
2019
 
                        old_path_u = utf8_decode(old_path)[0]
2020
 
                        if old_path == path:
2021
 
                            path_u = old_path_u
2022
 
                        else:
2023
 
                            path_u = utf8_decode(path)[0]
2024
 
                    source_kind = _minikind_to_kind[source_minikind]
2025
 
                    return (entry[0][2],
2026
 
                           (old_path_u, path_u),
2027
 
                           content_change,
2028
 
                           (True, True),
2029
 
                           (source_parent_id, target_parent_id),
2030
 
                           (utf8_decode(old_basename)[0], utf8_decode(entry[0][1])[0]),
2031
 
                           (source_kind, target_kind),
2032
 
                           (source_exec, target_exec))
2033
 
                else:
2034
 
                    return uninteresting
2035
 
            elif source_minikind in 'a' and target_minikind in 'fdlt':
2036
 
                # looks like a new file
2037
 
                if path_info is not None:
2038
 
                    path = pathjoin(entry[0][0], entry[0][1])
2039
 
                    # parent id is the entry for the path in the target tree
2040
 
                    # TODO: these are the same for an entire directory: cache em.
2041
 
                    parent_id = state._get_entry(target_index,
2042
 
                                                 path_utf8=entry[0][0])[0][2]
2043
 
                    if parent_id == entry[0][2]:
2044
 
                        parent_id = None
2045
 
                    if use_filesystem_for_exec:
2046
 
                        # We need S_ISREG here, because we aren't sure if this
2047
 
                        # is a file or not.
2048
 
                        target_exec = bool(
2049
 
                            stat.S_ISREG(path_info[3].st_mode)
2050
 
                            and stat.S_IEXEC & path_info[3].st_mode)
2051
 
                    else:
2052
 
                        target_exec = target_details[3]
2053
 
                    return (entry[0][2],
2054
 
                           (None, utf8_decode(path)[0]),
2055
 
                           True,
2056
 
                           (False, True),
2057
 
                           (None, parent_id),
2058
 
                           (None, utf8_decode(entry[0][1])[0]),
2059
 
                           (None, path_info[2]),
2060
 
                           (None, target_exec))
2061
 
                else:
2062
 
                    # but its not on disk: we deliberately treat this as just
2063
 
                    # never-present. (Why ?! - RBC 20070224)
2064
 
                    pass
2065
 
            elif source_minikind in 'fdlt' and target_minikind in 'a':
2066
 
                # unversioned, possibly, or possibly not deleted: we dont care.
2067
 
                # if its still on disk, *and* theres no other entry at this
2068
 
                # path [we dont know this in this routine at the moment -
2069
 
                # perhaps we should change this - then it would be an unknown.
2070
 
                old_path = pathjoin(entry[0][0], entry[0][1])
2071
 
                # parent id is the entry for the path in the target tree
2072
 
                parent_id = state._get_entry(source_index, path_utf8=entry[0][0])[0][2]
2073
 
                if parent_id == entry[0][2]:
2074
 
                    parent_id = None
2075
 
                return (entry[0][2],
2076
 
                       (utf8_decode(old_path)[0], None),
2077
 
                       True,
2078
 
                       (True, False),
2079
 
                       (parent_id, None),
2080
 
                       (utf8_decode(entry[0][1])[0], None),
2081
 
                       (_minikind_to_kind[source_minikind], None),
2082
 
                       (source_details[3], None))
2083
 
            elif source_minikind in 'fdlt' and target_minikind in 'r':
2084
 
                # a rename; could be a true rename, or a rename inherited from
2085
 
                # a renamed parent. TODO: handle this efficiently. Its not
2086
 
                # common case to rename dirs though, so a correct but slow
2087
 
                # implementation will do.
2088
 
                if not osutils.is_inside_any(searched_specific_files, target_details[1]):
2089
 
                    search_specific_files.add(target_details[1])
2090
 
            elif source_minikind in 'ra' and target_minikind in 'ra':
2091
 
                # neither of the selected trees contain this file,
2092
 
                # so skip over it. This is not currently directly tested, but
2093
 
                # is indirectly via test_too_much.TestCommands.test_conflicts.
2094
 
                pass
2095
 
            else:
2096
 
                raise AssertionError("don't know how to compare "
2097
 
                    "source_minikind=%r, target_minikind=%r"
2098
 
                    % (source_minikind, target_minikind))
2099
 
                ## import pdb;pdb.set_trace()
2100
 
            return None
2101
 
 
2102
 
        while search_specific_files:
2103
 
            # TODO: the pending list should be lexically sorted?  the
2104
 
            # interface doesn't require it.
2105
 
            current_root = search_specific_files.pop()
2106
 
            current_root_unicode = current_root.decode('utf8')
2107
 
            searched_specific_files.add(current_root)
2108
 
            # process the entries for this containing directory: the rest will be
2109
 
            # found by their parents recursively.
2110
 
            root_entries = _entries_for_path(current_root)
2111
 
            root_abspath = self.target.abspath(current_root_unicode)
2112
 
            try:
2113
 
                root_stat = os.lstat(root_abspath)
2114
 
            except OSError, e:
2115
 
                if e.errno == errno.ENOENT:
2116
 
                    # the path does not exist: let _process_entry know that.
2117
 
                    root_dir_info = None
2118
 
                else:
2119
 
                    # some other random error: hand it up.
2120
 
                    raise
2121
 
            else:
2122
 
                root_dir_info = ('', current_root,
2123
 
                    osutils.file_kind_from_stat_mode(root_stat.st_mode), root_stat,
2124
 
                    root_abspath)
2125
 
                if root_dir_info[2] == 'directory':
2126
 
                    if self.target._directory_is_tree_reference(
2127
 
                        current_root.decode('utf8')):
2128
 
                        root_dir_info = root_dir_info[:2] + \
2129
 
                            ('tree-reference',) + root_dir_info[3:]
2130
 
 
2131
 
            if not root_entries and not root_dir_info:
2132
 
                # this specified path is not present at all, skip it.
2133
 
                continue
2134
 
            path_handled = False
2135
 
            for entry in root_entries:
2136
 
                result = _process_entry(entry, root_dir_info)
2137
 
                if result is not None:
2138
 
                    path_handled = True
2139
 
                    if result is not uninteresting:
2140
 
                        yield result
2141
 
            if want_unversioned and not path_handled and root_dir_info:
2142
 
                new_executable = bool(
2143
 
                    stat.S_ISREG(root_dir_info[3].st_mode)
2144
 
                    and stat.S_IEXEC & root_dir_info[3].st_mode)
2145
 
                yield (None,
2146
 
                       (None, current_root_unicode),
2147
 
                       True,
2148
 
                       (False, False),
2149
 
                       (None, None),
2150
 
                       (None, splitpath(current_root_unicode)[-1]),
2151
 
                       (None, root_dir_info[2]),
2152
 
                       (None, new_executable)
2153
 
                      )
2154
 
            initial_key = (current_root, '', '')
2155
 
            block_index, _ = state._find_block_index_from_key(initial_key)
2156
 
            if block_index == 0:
2157
 
                # we have processed the total root already, but because the
2158
 
                # initial key matched it we should skip it here.
2159
 
                block_index +=1
2160
 
            if root_dir_info and root_dir_info[2] == 'tree-reference':
2161
 
                current_dir_info = None
2162
 
            else:
2163
 
                dir_iterator = osutils._walkdirs_utf8(root_abspath, prefix=current_root)
2164
 
                try:
2165
 
                    current_dir_info = dir_iterator.next()
2166
 
                except OSError, e:
2167
 
                    # on win32, python2.4 has e.errno == ERROR_DIRECTORY, but
2168
 
                    # python 2.5 has e.errno == EINVAL,
2169
 
                    #            and e.winerror == ERROR_DIRECTORY
2170
 
                    e_winerror = getattr(e, 'winerror', None)
2171
 
                    win_errors = (ERROR_DIRECTORY, ERROR_PATH_NOT_FOUND)
2172
 
                    # there may be directories in the inventory even though
2173
 
                    # this path is not a file on disk: so mark it as end of
2174
 
                    # iterator
2175
 
                    if e.errno in (errno.ENOENT, errno.ENOTDIR, errno.EINVAL):
2176
 
                        current_dir_info = None
2177
 
                    elif (sys.platform == 'win32'
2178
 
                          and (e.errno in win_errors
2179
 
                               or e_winerror in win_errors)):
2180
 
                        current_dir_info = None
2181
 
                    else:
2182
 
                        raise
2183
 
                else:
2184
 
                    if current_dir_info[0][0] == '':
2185
 
                        # remove .bzr from iteration
2186
 
                        bzr_index = bisect_left(current_dir_info[1], ('.bzr',))
2187
 
                        assert current_dir_info[1][bzr_index][0] == '.bzr'
2188
 
                        del current_dir_info[1][bzr_index]
2189
 
            # walk until both the directory listing and the versioned metadata
2190
 
            # are exhausted. 
2191
 
            if (block_index < len(state._dirblocks) and
2192
 
                osutils.is_inside(current_root, state._dirblocks[block_index][0])):
2193
 
                current_block = state._dirblocks[block_index]
2194
 
            else:
2195
 
                current_block = None
2196
 
            while (current_dir_info is not None or
2197
 
                   current_block is not None):
2198
 
                if (current_dir_info and current_block
2199
 
                    and current_dir_info[0][0] != current_block[0]):
2200
 
                    if cmp_by_dirs(current_dir_info[0][0], current_block[0]) < 0:
2201
 
                        # filesystem data refers to paths not covered by the dirblock.
2202
 
                        # this has two possibilities:
2203
 
                        # A) it is versioned but empty, so there is no block for it
2204
 
                        # B) it is not versioned.
2205
 
 
2206
 
                        # if (A) then we need to recurse into it to check for
2207
 
                        # new unknown files or directories.
2208
 
                        # if (B) then we should ignore it, because we don't
2209
 
                        # recurse into unknown directories.
2210
 
                        path_index = 0
2211
 
                        while path_index < len(current_dir_info[1]):
2212
 
                                current_path_info = current_dir_info[1][path_index]
2213
 
                                if want_unversioned:
2214
 
                                    if current_path_info[2] == 'directory':
2215
 
                                        if self.target._directory_is_tree_reference(
2216
 
                                            current_path_info[0].decode('utf8')):
2217
 
                                            current_path_info = current_path_info[:2] + \
2218
 
                                                ('tree-reference',) + current_path_info[3:]
2219
 
                                    new_executable = bool(
2220
 
                                        stat.S_ISREG(current_path_info[3].st_mode)
2221
 
                                        and stat.S_IEXEC & current_path_info[3].st_mode)
2222
 
                                    yield (None,
2223
 
                                        (None, utf8_decode(current_path_info[0])[0]),
2224
 
                                        True,
2225
 
                                        (False, False),
2226
 
                                        (None, None),
2227
 
                                        (None, utf8_decode(current_path_info[1])[0]),
2228
 
                                        (None, current_path_info[2]),
2229
 
                                        (None, new_executable))
2230
 
                                # dont descend into this unversioned path if it is
2231
 
                                # a dir
2232
 
                                if current_path_info[2] in ('directory',
2233
 
                                                            'tree-reference'):
2234
 
                                    del current_dir_info[1][path_index]
2235
 
                                    path_index -= 1
2236
 
                                path_index += 1
2237
 
 
2238
 
                        # This dir info has been handled, go to the next
2239
 
                        try:
2240
 
                            current_dir_info = dir_iterator.next()
2241
 
                        except StopIteration:
2242
 
                            current_dir_info = None
2243
 
                    else:
2244
 
                        # We have a dirblock entry for this location, but there
2245
 
                        # is no filesystem path for this. This is most likely
2246
 
                        # because a directory was removed from the disk.
2247
 
                        # We don't have to report the missing directory,
2248
 
                        # because that should have already been handled, but we
2249
 
                        # need to handle all of the files that are contained
2250
 
                        # within.
2251
 
                        for current_entry in current_block[1]:
2252
 
                            # entry referring to file not present on disk.
2253
 
                            # advance the entry only, after processing.
2254
 
                            result = _process_entry(current_entry, None)
2255
 
                            if result is not None:
2256
 
                                if result is not uninteresting:
2257
 
                                    yield result
2258
 
                        block_index +=1
2259
 
                        if (block_index < len(state._dirblocks) and
2260
 
                            osutils.is_inside(current_root,
2261
 
                                              state._dirblocks[block_index][0])):
2262
 
                            current_block = state._dirblocks[block_index]
2263
 
                        else:
2264
 
                            current_block = None
2265
 
                    continue
2266
 
                entry_index = 0
2267
 
                if current_block and entry_index < len(current_block[1]):
2268
 
                    current_entry = current_block[1][entry_index]
2269
 
                else:
2270
 
                    current_entry = None
2271
 
                advance_entry = True
2272
 
                path_index = 0
2273
 
                if current_dir_info and path_index < len(current_dir_info[1]):
2274
 
                    current_path_info = current_dir_info[1][path_index]
2275
 
                    if current_path_info[2] == 'directory':
2276
 
                        if self.target._directory_is_tree_reference(
2277
 
                            current_path_info[0].decode('utf8')):
2278
 
                            current_path_info = current_path_info[:2] + \
2279
 
                                ('tree-reference',) + current_path_info[3:]
2280
 
                else:
2281
 
                    current_path_info = None
2282
 
                advance_path = True
2283
 
                path_handled = False
2284
 
                while (current_entry is not None or
2285
 
                    current_path_info is not None):
2286
 
                    if current_entry is None:
2287
 
                        # the check for path_handled when the path is adnvaced
2288
 
                        # will yield this path if needed.
2289
 
                        pass
2290
 
                    elif current_path_info is None:
2291
 
                        # no path is fine: the per entry code will handle it.
2292
 
                        result = _process_entry(current_entry, current_path_info)
2293
 
                        if result is not None:
2294
 
                            if result is not uninteresting:
2295
 
                                yield result
2296
 
                    elif (current_entry[0][1] != current_path_info[1]
2297
 
                          or current_entry[1][target_index][0] in 'ar'):
2298
 
                        # The current path on disk doesn't match the dirblock
2299
 
                        # record. Either the dirblock is marked as absent, or
2300
 
                        # the file on disk is not present at all in the
2301
 
                        # dirblock. Either way, report about the dirblock
2302
 
                        # entry, and let other code handle the filesystem one.
2303
 
 
2304
 
                        # Compare the basename for these files to determine
2305
 
                        # which comes first
2306
 
                        if current_path_info[1] < current_entry[0][1]:
2307
 
                            # extra file on disk: pass for now, but only
2308
 
                            # increment the path, not the entry
2309
 
                            advance_entry = False
2310
 
                        else:
2311
 
                            # entry referring to file not present on disk.
2312
 
                            # advance the entry only, after processing.
2313
 
                            result = _process_entry(current_entry, None)
2314
 
                            if result is not None:
2315
 
                                if result is not uninteresting:
2316
 
                                    yield result
2317
 
                            advance_path = False
2318
 
                    else:
2319
 
                        result = _process_entry(current_entry, current_path_info)
2320
 
                        if result is not None:
2321
 
                            path_handled = True
2322
 
                            if result is not uninteresting:
2323
 
                                yield result
2324
 
                    if advance_entry and current_entry is not None:
2325
 
                        entry_index += 1
2326
 
                        if entry_index < len(current_block[1]):
2327
 
                            current_entry = current_block[1][entry_index]
2328
 
                        else:
2329
 
                            current_entry = None
2330
 
                    else:
2331
 
                        advance_entry = True # reset the advance flaga
2332
 
                    if advance_path and current_path_info is not None:
2333
 
                        if not path_handled:
2334
 
                            # unversioned in all regards
2335
 
                            if want_unversioned:
2336
 
                                new_executable = bool(
2337
 
                                    stat.S_ISREG(current_path_info[3].st_mode)
2338
 
                                    and stat.S_IEXEC & current_path_info[3].st_mode)
2339
 
                                yield (None,
2340
 
                                    (None, utf8_decode(current_path_info[0])[0]),
2341
 
                                    True,
2342
 
                                    (False, False),
2343
 
                                    (None, None),
2344
 
                                    (None, utf8_decode(current_path_info[1])[0]),
2345
 
                                    (None, current_path_info[2]),
2346
 
                                    (None, new_executable))
2347
 
                            # dont descend into this unversioned path if it is
2348
 
                            # a dir
2349
 
                            if current_path_info[2] in ('directory'):
2350
 
                                del current_dir_info[1][path_index]
2351
 
                                path_index -= 1
2352
 
                        # dont descend the disk iterator into any tree 
2353
 
                        # paths.
2354
 
                        if current_path_info[2] == 'tree-reference':
2355
 
                            del current_dir_info[1][path_index]
2356
 
                            path_index -= 1
2357
 
                        path_index += 1
2358
 
                        if path_index < len(current_dir_info[1]):
2359
 
                            current_path_info = current_dir_info[1][path_index]
2360
 
                            if current_path_info[2] == 'directory':
2361
 
                                if self.target._directory_is_tree_reference(
2362
 
                                    current_path_info[0].decode('utf8')):
2363
 
                                    current_path_info = current_path_info[:2] + \
2364
 
                                        ('tree-reference',) + current_path_info[3:]
2365
 
                        else:
2366
 
                            current_path_info = None
2367
 
                        path_handled = False
2368
 
                    else:
2369
 
                        advance_path = True # reset the advance flagg.
2370
 
                if current_block is not None:
2371
 
                    block_index += 1
2372
 
                    if (block_index < len(state._dirblocks) and
2373
 
                        osutils.is_inside(current_root, state._dirblocks[block_index][0])):
2374
 
                        current_block = state._dirblocks[block_index]
2375
 
                    else:
2376
 
                        current_block = None
2377
 
                if current_dir_info is not None:
2378
 
                    try:
2379
 
                        current_dir_info = dir_iterator.next()
2380
 
                    except StopIteration:
2381
 
                        current_dir_info = None
2382
 
 
2383
 
 
2384
 
    @staticmethod
2385
 
    def is_compatible(source, target):
2386
 
        # the target must be a dirstate working tree
2387
 
        if not isinstance(target, WorkingTree4):
2388
 
            return False
2389
 
        # the source must be a revtreee or dirstate rev tree.
2390
 
        if not isinstance(source,
2391
 
            (revisiontree.RevisionTree, DirStateRevisionTree)):
2392
 
            return False
2393
 
        # the source revid must be in the target dirstate
2394
 
        if not (source._revision_id == NULL_REVISION or
2395
 
            source._revision_id in target.get_parent_ids()):
2396
 
            # TODO: what about ghosts? it may well need to 
2397
 
            # check for them explicitly.
2398
 
            return False
2399
 
        return True
2400
 
 
2401
 
InterTree.register_optimiser(InterDirStateTree)
2402
 
 
2403
 
 
2404
 
class Converter3to4(object):
2405
 
    """Perform an in-place upgrade of format 3 to format 4 trees."""
2406
 
 
2407
 
    def __init__(self):
2408
 
        self.target_format = WorkingTreeFormat4()
2409
 
 
2410
 
    def convert(self, tree):
2411
 
        # lock the control files not the tree, so that we dont get tree
2412
 
        # on-unlock behaviours, and so that noone else diddles with the 
2413
 
        # tree during upgrade.
2414
 
        tree._control_files.lock_write()
2415
 
        try:
2416
 
            tree.read_working_inventory()
2417
 
            self.create_dirstate_data(tree)
2418
 
            self.update_format(tree)
2419
 
            self.remove_xml_files(tree)
2420
 
        finally:
2421
 
            tree._control_files.unlock()
2422
 
 
2423
 
    def create_dirstate_data(self, tree):
2424
 
        """Create the dirstate based data for tree."""
2425
 
        local_path = tree.bzrdir.get_workingtree_transport(None
2426
 
            ).local_abspath('dirstate')
2427
 
        state = dirstate.DirState.from_tree(tree, local_path)
2428
 
        state.save()
2429
 
        state.unlock()
2430
 
 
2431
 
    def remove_xml_files(self, tree):
2432
 
        """Remove the oldformat 3 data."""
2433
 
        transport = tree.bzrdir.get_workingtree_transport(None)
2434
 
        for path in ['basis-inventory-cache', 'inventory', 'last-revision',
2435
 
            'pending-merges', 'stat-cache']:
2436
 
            try:
2437
 
                transport.delete(path)
2438
 
            except errors.NoSuchFile:
2439
 
                # some files are optional - just deal.
2440
 
                pass
2441
 
 
2442
 
    def update_format(self, tree):
2443
 
        """Change the format marker."""
2444
 
        tree._control_files.put_utf8('format',
2445
 
            self.target_format.get_format_string())