/brz/remove-bazaar

To get this branch, use:
bzr branch http://gegoxaren.bato24.eu/bzr/brz/remove-bazaar

« back to all changes in this revision

Viewing changes to breezy/git/workingtree.py

  • Committer: Martin
  • Date: 2018-11-16 16:38:22 UTC
  • mto: This revision was merged to the branch mainline in revision 7172.
  • Revision ID: gzlist@googlemail.com-20181116163822-yg1h1cdng6w7w9kn
Make --profile-imports work on Python 3

Also tweak heading to line up correctly.

Show diffs side-by-side

added added

removed removed

Lines of Context:
 
1
# Copyright (C) 2008-2018 Jelmer Vernooij <jelmer@jelmer.uk>
 
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
16
 
 
17
 
 
18
"""An adapter between a Git index and a Bazaar Working Tree"""
 
19
 
 
20
from __future__ import absolute_import
 
21
 
 
22
import itertools
 
23
from collections import defaultdict
 
24
import errno
 
25
from dulwich.ignore import (
 
26
    IgnoreFilterManager,
 
27
    )
 
28
from dulwich.file import GitFile, FileLocked
 
29
from dulwich.index import (
 
30
    Index,
 
31
    SHA1Writer,
 
32
    build_index_from_tree,
 
33
    index_entry_from_path,
 
34
    index_entry_from_stat,
 
35
    FLAG_STAGEMASK,
 
36
    read_submodule_head,
 
37
    validate_path,
 
38
    write_index_dict,
 
39
    )
 
40
from dulwich.object_store import (
 
41
    tree_lookup_path,
 
42
    )
 
43
from dulwich.objects import (
 
44
    S_ISGITLINK,
 
45
    )
 
46
import os
 
47
import posixpath
 
48
import stat
 
49
import sys
 
50
 
 
51
from .. import (
 
52
    conflicts as _mod_conflicts,
 
53
    errors,
 
54
    controldir as _mod_controldir,
 
55
    globbing,
 
56
    ignores,
 
57
    lock,
 
58
    merge,
 
59
    osutils,
 
60
    revision as _mod_revision,
 
61
    trace,
 
62
    transport as _mod_transport,
 
63
    tree,
 
64
    workingtree,
 
65
    )
 
66
from ..decorators import (
 
67
    only_raises,
 
68
    )
 
69
from ..mutabletree import (
 
70
    BadReferenceTarget,
 
71
    MutableTree,
 
72
    )
 
73
 
 
74
 
 
75
from .dir import (
 
76
    LocalGitDir,
 
77
    )
 
78
from .tree import (
 
79
    MutableGitIndexTree,
 
80
    )
 
81
from .mapping import (
 
82
    GitFileIdMap,
 
83
    mode_kind,
 
84
    )
 
85
 
 
86
IGNORE_FILENAME = ".gitignore"
 
87
 
 
88
 
 
89
class GitWorkingTree(MutableGitIndexTree,workingtree.WorkingTree):
 
90
    """A Git working tree."""
 
91
 
 
92
    def __init__(self, controldir, repo, branch):
 
93
        MutableGitIndexTree.__init__(self)
 
94
        basedir = controldir.root_transport.local_abspath('.')
 
95
        self.basedir = osutils.realpath(basedir)
 
96
        self.controldir = controldir
 
97
        self.repository = repo
 
98
        self.store = self.repository._git.object_store
 
99
        self.mapping = self.repository.get_mapping()
 
100
        self._branch = branch
 
101
        self._transport = self.repository._git._controltransport
 
102
        self._format = GitWorkingTreeFormat()
 
103
        self.index = None
 
104
        self._index_file = None
 
105
        self.views = self._make_views()
 
106
        self._rules_searcher = None
 
107
        self._detect_case_handling()
 
108
        self._reset_data()
 
109
 
 
110
    def supports_tree_reference(self):
 
111
        return True
 
112
 
 
113
    def supports_rename_tracking(self):
 
114
        return False
 
115
 
 
116
    def _read_index(self):
 
117
        self.index = Index(self.control_transport.local_abspath('index'))
 
118
        self._index_dirty = False
 
119
 
 
120
    def lock_read(self):
 
121
        """Lock the repository for read operations.
 
122
 
 
123
        :return: A breezy.lock.LogicalLockResult.
 
124
        """
 
125
        if not self._lock_mode:
 
126
            self._lock_mode = 'r'
 
127
            self._lock_count = 1
 
128
            self._read_index()
 
129
        else:
 
130
            self._lock_count += 1
 
131
        self.branch.lock_read()
 
132
        return lock.LogicalLockResult(self.unlock)
 
133
 
 
134
    def _lock_write_tree(self):
 
135
        if not self._lock_mode:
 
136
            self._lock_mode = 'w'
 
137
            self._lock_count = 1
 
138
            try:
 
139
                self._index_file = GitFile(self.control_transport.local_abspath('index'), 'wb')
 
140
            except FileLocked:
 
141
                raise errors.LockContention('index')
 
142
            self._read_index()
 
143
        elif self._lock_mode == 'r':
 
144
            raise errors.ReadOnlyError(self)
 
145
        else:
 
146
            self._lock_count +=1
 
147
 
 
148
    def lock_tree_write(self):
 
149
        self.branch.lock_read()
 
150
        try:
 
151
            self._lock_write_tree()
 
152
            return lock.LogicalLockResult(self.unlock)
 
153
        except:
 
154
            self.branch.unlock()
 
155
            raise
 
156
 
 
157
    def lock_write(self, token=None):
 
158
        self.branch.lock_write()
 
159
        try:
 
160
            self._lock_write_tree()
 
161
            return lock.LogicalLockResult(self.unlock)
 
162
        except:
 
163
            self.branch.unlock()
 
164
            raise
 
165
 
 
166
    def is_locked(self):
 
167
        return self._lock_count >= 1
 
168
 
 
169
    def get_physical_lock_status(self):
 
170
        return False
 
171
 
 
172
    def break_lock(self):
 
173
        try:
 
174
            self.control_transport.delete('index.lock')
 
175
        except errors.NoSuchFile:
 
176
            pass
 
177
        self.branch.break_lock()
 
178
 
 
179
    @only_raises(errors.LockNotHeld, errors.LockBroken)
 
180
    def unlock(self):
 
181
        if not self._lock_count:
 
182
            return lock.cant_unlock_not_held(self)
 
183
        try:
 
184
            self._cleanup()
 
185
            self._lock_count -= 1
 
186
            if self._lock_count > 0:
 
187
                return
 
188
            if self._index_file is not None:
 
189
                if self._index_dirty:
 
190
                    self._flush(self._index_file)
 
191
                    self._index_file.close()
 
192
                else:
 
193
                    # Something else already triggered a write of the index
 
194
                    # file by calling .flush()
 
195
                    self._index_file.abort()
 
196
                self._index_file = None
 
197
            self._lock_mode = None
 
198
            self.index = None
 
199
        finally:
 
200
            self.branch.unlock()
 
201
 
 
202
    def _cleanup(self):
 
203
        pass
 
204
 
 
205
    def _detect_case_handling(self):
 
206
        try:
 
207
            self._transport.stat(".git/cOnFiG")
 
208
        except errors.NoSuchFile:
 
209
            self.case_sensitive = True
 
210
        else:
 
211
            self.case_sensitive = False
 
212
 
 
213
    def merge_modified(self):
 
214
        return {}
 
215
 
 
216
    def set_merge_modified(self, modified_hashes):
 
217
        raise errors.UnsupportedOperation(self.set_merge_modified, self)
 
218
 
 
219
    def set_parent_trees(self, parents_list, allow_leftmost_as_ghost=False):
 
220
        self.set_parent_ids([p for p, t in parents_list])
 
221
 
 
222
    def _set_merges_from_parent_ids(self, rhs_parent_ids):
 
223
        try:
 
224
            merges = [self.branch.lookup_bzr_revision_id(revid)[0] for revid in rhs_parent_ids]
 
225
        except errors.NoSuchRevision as e:
 
226
            raise errors.GhostRevisionUnusableHere(e.revision)
 
227
        if merges:
 
228
            self.control_transport.put_bytes('MERGE_HEAD', b'\n'.join(merges),
 
229
                mode=self.controldir._get_file_mode())
 
230
        else:
 
231
            try:
 
232
                self.control_transport.delete('MERGE_HEAD')
 
233
            except errors.NoSuchFile:
 
234
                pass
 
235
 
 
236
    def set_parent_ids(self, revision_ids, allow_leftmost_as_ghost=False):
 
237
        """Set the parent ids to revision_ids.
 
238
 
 
239
        See also set_parent_trees. This api will try to retrieve the tree data
 
240
        for each element of revision_ids from the trees repository. If you have
 
241
        tree data already available, it is more efficient to use
 
242
        set_parent_trees rather than set_parent_ids. set_parent_ids is however
 
243
        an easier API to use.
 
244
 
 
245
        :param revision_ids: The revision_ids to set as the parent ids of this
 
246
            working tree. Any of these may be ghosts.
 
247
        """
 
248
        with self.lock_tree_write():
 
249
            self._check_parents_for_ghosts(revision_ids,
 
250
                allow_leftmost_as_ghost=allow_leftmost_as_ghost)
 
251
            for revision_id in revision_ids:
 
252
                _mod_revision.check_not_reserved_id(revision_id)
 
253
 
 
254
            revision_ids = self._filter_parent_ids_by_ancestry(revision_ids)
 
255
 
 
256
            if len(revision_ids) > 0:
 
257
                self.set_last_revision(revision_ids[0])
 
258
            else:
 
259
                self.set_last_revision(_mod_revision.NULL_REVISION)
 
260
 
 
261
            self._set_merges_from_parent_ids(revision_ids[1:])
 
262
 
 
263
    def get_parent_ids(self):
 
264
        """See Tree.get_parent_ids.
 
265
 
 
266
        This implementation reads the pending merges list and last_revision
 
267
        value and uses that to decide what the parents list should be.
 
268
        """
 
269
        last_rev = _mod_revision.ensure_null(self._last_revision())
 
270
        if _mod_revision.NULL_REVISION == last_rev:
 
271
            parents = []
 
272
        else:
 
273
            parents = [last_rev]
 
274
        try:
 
275
            merges_bytes = self.control_transport.get_bytes('MERGE_HEAD')
 
276
        except errors.NoSuchFile:
 
277
            pass
 
278
        else:
 
279
            for l in osutils.split_lines(merges_bytes):
 
280
                revision_id = l.rstrip(b'\n')
 
281
                parents.append(self.branch.lookup_foreign_revision_id(revision_id))
 
282
        return parents
 
283
 
 
284
    def check_state(self):
 
285
        """Check that the working state is/isn't valid."""
 
286
        pass
 
287
 
 
288
    def remove(self, files, verbose=False, to_file=None, keep_files=True,
 
289
        force=False):
 
290
        """Remove nominated files from the working tree metadata.
 
291
 
 
292
        :param files: File paths relative to the basedir.
 
293
        :param keep_files: If true, the files will also be kept.
 
294
        :param force: Delete files and directories, even if they are changed
 
295
            and even if the directories are not empty.
 
296
        """
 
297
        if not isinstance(files, list):
 
298
            files = [files]
 
299
 
 
300
        if to_file is None:
 
301
            to_file = sys.stdout
 
302
 
 
303
        def backup(file_to_backup):
 
304
            abs_path = self.abspath(file_to_backup)
 
305
            backup_name = self.controldir._available_backup_name(file_to_backup)
 
306
            osutils.rename(abs_path, self.abspath(backup_name))
 
307
            return "removed %s (but kept a copy: %s)" % (
 
308
                file_to_backup, backup_name)
 
309
 
 
310
        # Sort needed to first handle directory content before the directory
 
311
        files_to_backup = []
 
312
 
 
313
        all_files = set()
 
314
 
 
315
        def recurse_directory_to_add_files(directory):
 
316
            # Recurse directory and add all files
 
317
            # so we can check if they have changed.
 
318
            for parent_info, file_infos in self.walkdirs(directory):
 
319
                for relpath, basename, kind, lstat, fileid, kind in file_infos:
 
320
                    # Is it versioned or ignored?
 
321
                    if self.is_versioned(relpath):
 
322
                        # Add nested content for deletion.
 
323
                        all_files.add(relpath)
 
324
                    else:
 
325
                        # Files which are not versioned
 
326
                        # should be treated as unknown.
 
327
                        files_to_backup.append(relpath)
 
328
 
 
329
        with self.lock_tree_write():
 
330
            for filepath in files:
 
331
                # Get file name into canonical form.
 
332
                abspath = self.abspath(filepath)
 
333
                filepath = self.relpath(abspath)
 
334
 
 
335
                if filepath:
 
336
                    all_files.add(filepath)
 
337
                    recurse_directory_to_add_files(filepath)
 
338
 
 
339
            files = list(all_files)
 
340
 
 
341
            if len(files) == 0:
 
342
                return # nothing to do
 
343
 
 
344
            # Sort needed to first handle directory content before the directory
 
345
            files.sort(reverse=True)
 
346
 
 
347
            # Bail out if we are going to delete files we shouldn't
 
348
            if not keep_files and not force:
 
349
                for (file_id, path, content_change, versioned, parent_id, name,
 
350
                     kind, executable) in self.iter_changes(self.basis_tree(),
 
351
                         include_unchanged=True, require_versioned=False,
 
352
                         want_unversioned=True, specific_files=files):
 
353
                    if versioned[0] == False:
 
354
                        # The record is unknown or newly added
 
355
                        files_to_backup.append(path[1])
 
356
                        files_to_backup.extend(osutils.parent_directories(path[1]))
 
357
                    elif (content_change and (kind[1] is not None) and
 
358
                            osutils.is_inside_any(files, path[1])):
 
359
                        # Versioned and changed, but not deleted, and still
 
360
                        # in one of the dirs to be deleted.
 
361
                        files_to_backup.append(path[1])
 
362
                        files_to_backup.extend(osutils.parent_directories(path[1]))
 
363
 
 
364
            for f in files:
 
365
                if f == '':
 
366
                    continue
 
367
 
 
368
                try:
 
369
                    kind = self.kind(f)
 
370
                except errors.NoSuchFile:
 
371
                    kind = None
 
372
 
 
373
                abs_path = self.abspath(f)
 
374
                if verbose:
 
375
                    # having removed it, it must be either ignored or unknown
 
376
                    if self.is_ignored(f):
 
377
                        new_status = 'I'
 
378
                    else:
 
379
                        new_status = '?'
 
380
                    kind_ch = osutils.kind_marker(kind)
 
381
                    to_file.write(new_status + '       ' + f + kind_ch + '\n')
 
382
                if kind is None:
 
383
                    message = "%s does not exist" % (f, )
 
384
                else:
 
385
                    if not keep_files:
 
386
                        if f in files_to_backup and not force:
 
387
                            message = backup(f)
 
388
                        else:
 
389
                            if kind == 'directory':
 
390
                                osutils.rmtree(abs_path)
 
391
                            else:
 
392
                                osutils.delete_any(abs_path)
 
393
                            message = "deleted %s" % (f,)
 
394
                    else:
 
395
                        message = "removed %s" % (f,)
 
396
                self._unversion_path(f)
 
397
 
 
398
                # print only one message (if any) per file.
 
399
                if message is not None:
 
400
                    trace.note(message)
 
401
            self._versioned_dirs = None
 
402
 
 
403
    def smart_add(self, file_list, recurse=True, action=None, save=True):
 
404
        if not file_list:
 
405
            file_list = [u'.']
 
406
 
 
407
        # expand any symlinks in the directory part, while leaving the
 
408
        # filename alone
 
409
        # only expanding if symlinks are supported avoids windows path bugs
 
410
        if osutils.has_symlinks():
 
411
            file_list = list(map(osutils.normalizepath, file_list))
 
412
 
 
413
        conflicts_related = set()
 
414
        for c in self.conflicts():
 
415
            conflicts_related.update(c.associated_filenames())
 
416
 
 
417
        added = []
 
418
        ignored = {}
 
419
        user_dirs = []
 
420
        def call_action(filepath, kind):
 
421
            if filepath == '':
 
422
                return
 
423
            if action is not None:
 
424
                parent_path = posixpath.dirname(filepath)
 
425
                parent_id = self.path2id(parent_path)
 
426
                parent_ie = self._get_dir_ie(parent_path, parent_id)
 
427
                file_id = action(self, parent_ie, filepath, kind)
 
428
                if file_id is not None:
 
429
                    raise workingtree.SettingFileIdUnsupported()
 
430
 
 
431
        with self.lock_tree_write():
 
432
            for filepath in osutils.canonical_relpaths(self.basedir, file_list):
 
433
                filepath, can_access = osutils.normalized_filename(filepath)
 
434
                if not can_access:
 
435
                    raise errors.InvalidNormalization(filepath)
 
436
 
 
437
                abspath = self.abspath(filepath)
 
438
                kind = osutils.file_kind(abspath)
 
439
                if kind in ("file", "symlink"):
 
440
                    (index, subpath) = self._lookup_index(filepath.encode('utf-8'))
 
441
                    if subpath in index:
 
442
                        # Already present
 
443
                        continue
 
444
                    call_action(filepath, kind)
 
445
                    if save:
 
446
                        self._index_add_entry(filepath, kind)
 
447
                    added.append(filepath)
 
448
                elif kind == "directory":
 
449
                    (index, subpath) = self._lookup_index(filepath.encode('utf-8'))
 
450
                    if subpath not in index:
 
451
                        call_action(filepath, kind)
 
452
                    if recurse:
 
453
                        user_dirs.append(filepath)
 
454
                else:
 
455
                    raise errors.BadFileKindError(filename=abspath, kind=kind)
 
456
            for user_dir in user_dirs:
 
457
                abs_user_dir = self.abspath(user_dir)
 
458
                if user_dir != '':
 
459
                    try:
 
460
                        transport = _mod_transport.get_transport_from_path(abs_user_dir)
 
461
                        _mod_controldir.ControlDirFormat.find_format(transport)
 
462
                        subtree = True
 
463
                    except errors.NotBranchError:
 
464
                        subtree = False
 
465
                    except errors.UnsupportedFormatError:
 
466
                        subtree = False
 
467
                else:
 
468
                    subtree = False
 
469
                if subtree:
 
470
                    trace.warning('skipping nested tree %r', abs_user_dir)
 
471
                    continue
 
472
 
 
473
                for name in os.listdir(abs_user_dir):
 
474
                    subp = os.path.join(user_dir, name)
 
475
                    if self.is_control_filename(subp) or self.mapping.is_special_file(subp):
 
476
                        continue
 
477
                    ignore_glob = self.is_ignored(subp)
 
478
                    if ignore_glob is not None:
 
479
                        ignored.setdefault(ignore_glob, []).append(subp)
 
480
                        continue
 
481
                    abspath = self.abspath(subp)
 
482
                    kind = osutils.file_kind(abspath)
 
483
                    if kind == "directory":
 
484
                        user_dirs.append(subp)
 
485
                    else:
 
486
                        (index, subpath) = self._lookup_index(subp.encode('utf-8'))
 
487
                        if subpath in index:
 
488
                            # Already present
 
489
                            continue
 
490
                        if subp in conflicts_related:
 
491
                            continue
 
492
                        call_action(subp, kind)
 
493
                        if save:
 
494
                            self._index_add_entry(subp, kind)
 
495
                        added.append(subp)
 
496
            return added, ignored
 
497
 
 
498
    def has_filename(self, filename):
 
499
        return osutils.lexists(self.abspath(filename))
 
500
 
 
501
    def _iter_files_recursive(self, from_dir=None, include_dirs=False):
 
502
        if from_dir is None:
 
503
            from_dir = u""
 
504
        for (dirpath, dirnames, filenames) in os.walk(self.abspath(from_dir).encode(osutils._fs_enc)):
 
505
            dir_relpath = dirpath[len(self.basedir):].strip(b"/")
 
506
            if self.controldir.is_control_filename(dir_relpath.decode(osutils._fs_enc)):
 
507
                continue
 
508
            for name in list(dirnames):
 
509
                if self.controldir.is_control_filename(name.decode(osutils._fs_enc)):
 
510
                    dirnames.remove(name)
 
511
                    continue
 
512
                relpath = os.path.join(dir_relpath, name)
 
513
                if include_dirs:
 
514
                    try:
 
515
                        yield relpath.decode(osutils._fs_enc)
 
516
                    except UnicodeDecodeError:
 
517
                        raise errors.BadFilenameEncoding(
 
518
                            relpath, osutils._fs_enc)
 
519
                if not self._has_dir(relpath):
 
520
                    dirnames.remove(name)
 
521
            for name in filenames:
 
522
                if not self.mapping.is_special_file(name):
 
523
                    yp = os.path.join(dir_relpath, name)
 
524
                    try:
 
525
                        yield yp.decode(osutils._fs_enc)
 
526
                    except UnicodeDecodeError:
 
527
                        raise errors.BadFilenameEncoding(
 
528
                            yp, osutils._fs_enc)
 
529
 
 
530
    def extras(self):
 
531
        """Yield all unversioned files in this WorkingTree.
 
532
        """
 
533
        with self.lock_read():
 
534
            index_paths = set([p.decode('utf-8') for p, i in self._recurse_index_entries()])
 
535
            all_paths = set(self._iter_files_recursive(include_dirs=True))
 
536
            for p in (all_paths - index_paths):
 
537
                if not self._has_dir(p.encode('utf-8')):
 
538
                    yield p
 
539
 
 
540
    def _gather_kinds(self, files, kinds):
 
541
        """See MutableTree._gather_kinds."""
 
542
        with self.lock_tree_write():
 
543
            for pos, f in enumerate(files):
 
544
                if kinds[pos] is None:
 
545
                    fullpath = osutils.normpath(self.abspath(f))
 
546
                    try:
 
547
                         kind = osutils.file_kind(fullpath)
 
548
                    except OSError as e:
 
549
                        if e.errno == errno.ENOENT:
 
550
                            raise errors.NoSuchFile(fullpath)
 
551
                    if kind == 'directory' and f != '' and os.path.exists(os.path.join(fullpath, '.git')):
 
552
                        kind = 'tree-reference'
 
553
                    kinds[pos] = kind
 
554
 
 
555
    def flush(self):
 
556
        if self._lock_mode != 'w':
 
557
            raise errors.NotWriteLocked(self)
 
558
        # TODO(jelmer): This shouldn't be writing in-place, but index.lock is
 
559
        # already in use and GitFile doesn't allow overriding the lock file name :(
 
560
        f = open(self.control_transport.local_abspath('index'), 'wb')
 
561
        # Note that _flush will close the file
 
562
        self._flush(f)
 
563
 
 
564
    def _flush(self, f):
 
565
        try:
 
566
            shaf = SHA1Writer(f)
 
567
            write_index_dict(shaf, self.index)
 
568
            shaf.close()
 
569
        except:
 
570
            f.abort()
 
571
            raise
 
572
        self._index_dirty = False
 
573
 
 
574
    def has_or_had_id(self, file_id):
 
575
        if self.has_id(file_id):
 
576
            return True
 
577
        if self.had_id(file_id):
 
578
            return True
 
579
        return False
 
580
 
 
581
    def had_id(self, file_id):
 
582
        path = self._basis_fileid_map.lookup_path(file_id)
 
583
        try:
 
584
            head = self.repository._git.head()
 
585
        except KeyError:
 
586
            # Assume no if basis is not accessible
 
587
            return False
 
588
        try:
 
589
            root_tree = self.store[head].tree
 
590
        except KeyError:
 
591
            return False
 
592
        try:
 
593
            tree_lookup_path(self.store.__getitem__, root_tree, path.encode('utf-8'))
 
594
        except KeyError:
 
595
            return False
 
596
        else:
 
597
            return True
 
598
 
 
599
    def get_file_mtime(self, path, file_id=None):
 
600
        """See Tree.get_file_mtime."""
 
601
        try:
 
602
            return self._lstat(path).st_mtime
 
603
        except OSError as e:
 
604
            if e.errno == errno.ENOENT:
 
605
                raise errors.NoSuchFile(path)
 
606
            raise
 
607
 
 
608
    def is_ignored(self, filename):
 
609
        r"""Check whether the filename matches an ignore pattern.
 
610
 
 
611
        If the file is ignored, returns the pattern which caused it to
 
612
        be ignored, otherwise None.  So this can simply be used as a
 
613
        boolean if desired."""
 
614
        if getattr(self, '_global_ignoreglobster', None) is None:
 
615
            ignore_globs = set()
 
616
            ignore_globs.update(ignores.get_runtime_ignores())
 
617
            ignore_globs.update(ignores.get_user_ignores())
 
618
            self._global_ignoreglobster = globbing.ExceptionGlobster(ignore_globs)
 
619
        match = self._global_ignoreglobster.match(filename)
 
620
        if match is not None:
 
621
            return match
 
622
        try:
 
623
            if self.kind(filename) == 'directory':
 
624
                filename += '/'
 
625
        except errors.NoSuchFile:
 
626
            pass
 
627
        filename = filename.lstrip('/')
 
628
        ignore_manager = self._get_ignore_manager()
 
629
        ps = list(ignore_manager.find_matching(filename))
 
630
        if not ps:
 
631
            return None
 
632
        if not ps[-1].is_exclude:
 
633
            return None
 
634
        return bytes(ps[-1])
 
635
 
 
636
    def _get_ignore_manager(self):
 
637
        ignoremanager = getattr(self, '_ignoremanager', None)
 
638
        if ignoremanager is not None:
 
639
            return ignoremanager
 
640
 
 
641
        ignore_manager = IgnoreFilterManager.from_repo(self.repository._git)
 
642
        self._ignoremanager = ignore_manager
 
643
        return ignore_manager
 
644
 
 
645
    def _flush_ignore_list_cache(self):
 
646
        self._ignoremanager = None
 
647
 
 
648
    def set_last_revision(self, revid):
 
649
        if _mod_revision.is_null(revid):
 
650
            self.branch.set_last_revision_info(0, revid)
 
651
            return False
 
652
        _mod_revision.check_not_reserved_id(revid)
 
653
        try:
 
654
            self.branch.generate_revision_history(revid)
 
655
        except errors.NoSuchRevision:
 
656
            raise errors.GhostRevisionUnusableHere(revid)
 
657
 
 
658
    def _reset_data(self):
 
659
        try:
 
660
            head = self.repository._git.head()
 
661
        except KeyError:
 
662
            self._basis_fileid_map = GitFileIdMap({}, self.mapping)
 
663
        else:
 
664
            self._basis_fileid_map = self.mapping.get_fileid_map(
 
665
                self.store.__getitem__, self.store[head].tree)
 
666
        self._fileid_map = self._basis_fileid_map.copy()
 
667
 
 
668
    def get_file_verifier(self, path, file_id=None, stat_value=None):
 
669
        with self.lock_read():
 
670
            (index, subpath) = self._lookup_index(path.encode('utf-8'))
 
671
            try:
 
672
                return ("GIT", index[subpath].sha)
 
673
            except KeyError:
 
674
                if self._has_dir(path):
 
675
                    return ("GIT", None)
 
676
                raise errors.NoSuchFile(path)
 
677
 
 
678
    def get_file_sha1(self, path, file_id=None, stat_value=None):
 
679
        with self.lock_read():
 
680
            if not self.is_versioned(path):
 
681
                raise errors.NoSuchFile(path)
 
682
            abspath = self.abspath(path)
 
683
            try:
 
684
                return osutils.sha_file_by_name(abspath)
 
685
            except OSError as e:
 
686
                if e.errno in (errno.EISDIR, errno.ENOENT):
 
687
                    return None
 
688
                raise
 
689
 
 
690
    def revision_tree(self, revid):
 
691
        return self.repository.revision_tree(revid)
 
692
 
 
693
    def _is_executable_from_path_and_stat_from_stat(self, path, stat_result):
 
694
        mode = stat_result.st_mode
 
695
        return bool(stat.S_ISREG(mode) and stat.S_IEXEC & mode)
 
696
 
 
697
    def _is_executable_from_path_and_stat_from_basis(self, path, stat_result):
 
698
        return self.basis_tree().is_executable(path)
 
699
 
 
700
    def stored_kind(self, path, file_id=None):
 
701
        with self.lock_read():
 
702
            encoded_path = path.encode('utf-8')
 
703
            (index, subpath) = self._lookup_index(encoded_path)
 
704
            try:
 
705
                return mode_kind(index[subpath].mode)
 
706
            except KeyError:
 
707
                # Maybe it's a directory?
 
708
                if self._has_dir(encoded_path):
 
709
                    return "directory"
 
710
                raise errors.NoSuchFile(path)
 
711
 
 
712
    def _lstat(self, path):
 
713
        return os.lstat(self.abspath(path))
 
714
 
 
715
    def _live_entry(self, path):
 
716
        return index_entry_from_path(self.abspath(path.decode('utf-8')).encode(osutils._fs_enc))
 
717
 
 
718
    def is_executable(self, path, file_id=None):
 
719
        with self.lock_read():
 
720
            if getattr(self, "_supports_executable", osutils.supports_executable)():
 
721
                mode = self._lstat(path).st_mode
 
722
            else:
 
723
                (index, subpath) = self._lookup_index(path.encode('utf-8'))
 
724
                try:
 
725
                    mode = index[subpath].mode
 
726
                except KeyError:
 
727
                    mode = 0
 
728
            return bool(stat.S_ISREG(mode) and stat.S_IEXEC & mode)
 
729
 
 
730
    def _is_executable_from_path_and_stat(self, path, stat_result):
 
731
        if getattr(self, "_supports_executable", osutils.supports_executable)():
 
732
            return self._is_executable_from_path_and_stat_from_stat(path, stat_result)
 
733
        else:
 
734
            return self._is_executable_from_path_and_stat_from_basis(path, stat_result)
 
735
 
 
736
    def list_files(self, include_root=False, from_dir=None, recursive=True):
 
737
        if from_dir is None:
 
738
            from_dir = u""
 
739
        dir_ids = {}
 
740
        fk_entries = {'directory': tree.TreeDirectory,
 
741
                      'file': tree.TreeFile,
 
742
                      'symlink': tree.TreeLink,
 
743
                      'tree-reference': tree.TreeReference}
 
744
        with self.lock_read():
 
745
            root_ie = self._get_dir_ie(u"", None)
 
746
            if include_root and not from_dir:
 
747
                yield "", "V", root_ie.kind, root_ie.file_id, root_ie
 
748
            dir_ids[u""] = root_ie.file_id
 
749
            if recursive:
 
750
                path_iterator = sorted(self._iter_files_recursive(from_dir, include_dirs=True))
 
751
            else:
 
752
                path_iterator = sorted([os.path.join(from_dir, name.decode(osutils._fs_enc)) for name in
 
753
                    os.listdir(self.abspath(from_dir).encode(osutils._fs_enc))
 
754
                    if not self.controldir.is_control_filename(name.decode(osutils._fs_enc))
 
755
                    and not self.mapping.is_special_file(name.decode(osutils._fs_enc))])
 
756
            for path in path_iterator:
 
757
                try:
 
758
                    encoded_path = path.encode("utf-8")
 
759
                except UnicodeEncodeError:
 
760
                    raise errors.BadFilenameEncoding(
 
761
                        path, osutils._fs_enc)
 
762
                (index, index_path) = self._lookup_index(encoded_path)
 
763
                try:
 
764
                    value = index[index_path]
 
765
                except KeyError:
 
766
                    value = None
 
767
                kind = self.kind(path)
 
768
                parent, name = posixpath.split(path)
 
769
                for dir_path, dir_ie in self._add_missing_parent_ids(parent, dir_ids):
 
770
                    pass
 
771
                if kind in ('directory', 'tree-reference'):
 
772
                    if path != from_dir:
 
773
                        if self._has_dir(encoded_path):
 
774
                            ie = self._get_dir_ie(path, self.path2id(path))
 
775
                            status = "V"
 
776
                            file_id = ie.file_id
 
777
                        elif self.is_ignored(path):
 
778
                            status = "I"
 
779
                            ie = fk_entries[kind]()
 
780
                            file_id = None
 
781
                        else:
 
782
                            status = "?"
 
783
                            ie = fk_entries[kind]()
 
784
                            file_id = None
 
785
                        yield posixpath.relpath(path, from_dir), status, kind, file_id, ie
 
786
                    continue
 
787
                if value is not None:
 
788
                    ie = self._get_file_ie(name, path, value, dir_ids[parent])
 
789
                    yield posixpath.relpath(path, from_dir), "V", ie.kind, ie.file_id, ie
 
790
                else:
 
791
                    ie = fk_entries[kind]()
 
792
                    yield posixpath.relpath(path, from_dir), ("I" if self.is_ignored(path) else "?"), kind, None, ie
 
793
 
 
794
    def all_file_ids(self):
 
795
        with self.lock_read():
 
796
            ids = {u"": self.path2id("")}
 
797
            for path in self.index:
 
798
                if self.mapping.is_special_file(path):
 
799
                    continue
 
800
                path = path.decode("utf-8")
 
801
                parent = posixpath.dirname(path).strip("/")
 
802
                for e in self._add_missing_parent_ids(parent, ids):
 
803
                    pass
 
804
                ids[path] = self.path2id(path)
 
805
            return set(ids.values())
 
806
 
 
807
    def all_versioned_paths(self):
 
808
        with self.lock_read():
 
809
            paths = {u""}
 
810
            for path in self.index:
 
811
                if self.mapping.is_special_file(path):
 
812
                    continue
 
813
                path = path.decode("utf-8")
 
814
                paths.add(path)
 
815
                while path != "":
 
816
                    path = posixpath.dirname(path).strip("/")
 
817
                    if path in paths:
 
818
                        break
 
819
                    paths.add(path)
 
820
            return paths
 
821
 
 
822
    def iter_child_entries(self, path, file_id=None):
 
823
        encoded_path = path.encode('utf-8')
 
824
        with self.lock_read():
 
825
            parent_id = self.path2id(path)
 
826
            found_any = False
 
827
            seen_children = set()
 
828
            for item_path, value in self.index.iteritems():
 
829
                decoded_item_path = item_path.decode('utf-8')
 
830
                if self.mapping.is_special_file(item_path):
 
831
                    continue
 
832
                if not osutils.is_inside(path, decoded_item_path):
 
833
                    continue
 
834
                found_any = True
 
835
                subpath = posixpath.relpath(decoded_item_path, path)
 
836
                if '/' in subpath:
 
837
                    dirname = subpath.split('/', 1)[0]
 
838
                    file_ie = self._get_dir_ie(posixpath.join(path, dirname), parent_id)
 
839
                else:
 
840
                    (unused_parent, name) = posixpath.split(decoded_item_path)
 
841
                    file_ie = self._get_file_ie(
 
842
                        name, decoded_item_path, value, parent_id)
 
843
                yield file_ie
 
844
            if not found_any and path != u'':
 
845
                raise errors.NoSuchFile(path)
 
846
 
 
847
    def conflicts(self):
 
848
        with self.lock_read():
 
849
            conflicts = _mod_conflicts.ConflictList()
 
850
            for item_path, value in self.index.iteritems():
 
851
                if value.flags & FLAG_STAGEMASK:
 
852
                    conflicts.append(_mod_conflicts.TextConflict(item_path.decode('utf-8')))
 
853
            return conflicts
 
854
 
 
855
    def set_conflicts(self, conflicts):
 
856
        by_path = set()
 
857
        for conflict in conflicts:
 
858
            if conflict.typestring in ('text conflict', 'contents conflict'):
 
859
                by_path.add(conflict.path.encode('utf-8'))
 
860
            else:
 
861
                raise errors.UnsupportedOperation(self.set_conflicts, self)
 
862
        with self.lock_tree_write():
 
863
            for path in self.index:
 
864
                self._set_conflicted(path, path in by_path)
 
865
 
 
866
    def _set_conflicted(self, path, conflicted):
 
867
        trace.mutter('change conflict: %r -> %r', path, conflicted)
 
868
        value = self.index[path]
 
869
        self._index_dirty = True
 
870
        if conflicted:
 
871
            self.index[path] = (value[:9] + (value[9] | FLAG_STAGEMASK, ))
 
872
        else:
 
873
            self.index[path] = (value[:9] + (value[9] &~ FLAG_STAGEMASK, ))
 
874
 
 
875
    def add_conflicts(self, new_conflicts):
 
876
        with self.lock_tree_write():
 
877
            for conflict in new_conflicts:
 
878
                if conflict.typestring in ('text conflict', 'contents conflict'):
 
879
                    try:
 
880
                        self._set_conflicted(conflict.path.encode('utf-8'), True)
 
881
                    except KeyError:
 
882
                        raise errors.UnsupportedOperation(self.add_conflicts, self)
 
883
                else:
 
884
                    raise errors.UnsupportedOperation(self.add_conflicts, self)
 
885
 
 
886
    def walkdirs(self, prefix=""):
 
887
        """Walk the directories of this tree.
 
888
 
 
889
        returns a generator which yields items in the form:
 
890
                ((curren_directory_path, fileid),
 
891
                 [(file1_path, file1_name, file1_kind, (lstat), file1_id,
 
892
                   file1_kind), ... ])
 
893
 
 
894
        This API returns a generator, which is only valid during the current
 
895
        tree transaction - within a single lock_read or lock_write duration.
 
896
 
 
897
        If the tree is not locked, it may cause an error to be raised,
 
898
        depending on the tree implementation.
 
899
        """
 
900
        from bisect import bisect_left
 
901
        import operator
 
902
        disk_top = self.abspath(prefix)
 
903
        if disk_top.endswith('/'):
 
904
            disk_top = disk_top[:-1]
 
905
        top_strip_len = len(disk_top) + 1
 
906
        inventory_iterator = self._walkdirs(prefix)
 
907
        disk_iterator = osutils.walkdirs(disk_top, prefix)
 
908
        try:
 
909
            current_disk = next(disk_iterator)
 
910
            disk_finished = False
 
911
        except OSError as e:
 
912
            if not (e.errno == errno.ENOENT or
 
913
                (sys.platform == 'win32' and e.errno == ERROR_PATH_NOT_FOUND)):
 
914
                raise
 
915
            current_disk = None
 
916
            disk_finished = True
 
917
        try:
 
918
            current_inv = next(inventory_iterator)
 
919
            inv_finished = False
 
920
        except StopIteration:
 
921
            current_inv = None
 
922
            inv_finished = True
 
923
        while not inv_finished or not disk_finished:
 
924
            if current_disk:
 
925
                ((cur_disk_dir_relpath, cur_disk_dir_path_from_top),
 
926
                    cur_disk_dir_content) = current_disk
 
927
            else:
 
928
                ((cur_disk_dir_relpath, cur_disk_dir_path_from_top),
 
929
                    cur_disk_dir_content) = ((None, None), None)
 
930
            if not disk_finished:
 
931
                # strip out .bzr dirs
 
932
                if (cur_disk_dir_path_from_top[top_strip_len:] == '' and
 
933
                    len(cur_disk_dir_content) > 0):
 
934
                    # osutils.walkdirs can be made nicer -
 
935
                    # yield the path-from-prefix rather than the pathjoined
 
936
                    # value.
 
937
                    bzrdir_loc = bisect_left(cur_disk_dir_content,
 
938
                        ('.git', '.git'))
 
939
                    if (bzrdir_loc < len(cur_disk_dir_content)
 
940
                        and self.controldir.is_control_filename(
 
941
                            cur_disk_dir_content[bzrdir_loc][0])):
 
942
                        # we dont yield the contents of, or, .bzr itself.
 
943
                        del cur_disk_dir_content[bzrdir_loc]
 
944
            if inv_finished:
 
945
                # everything is unknown
 
946
                direction = 1
 
947
            elif disk_finished:
 
948
                # everything is missing
 
949
                direction = -1
 
950
            else:
 
951
                direction = ((current_inv[0][0] > cur_disk_dir_relpath) -
 
952
                             (current_inv[0][0] < cur_disk_dir_relpath))
 
953
            if direction > 0:
 
954
                # disk is before inventory - unknown
 
955
                dirblock = [(relpath, basename, kind, stat, None, None) for
 
956
                    relpath, basename, kind, stat, top_path in
 
957
                    cur_disk_dir_content]
 
958
                yield (cur_disk_dir_relpath, None), dirblock
 
959
                try:
 
960
                    current_disk = next(disk_iterator)
 
961
                except StopIteration:
 
962
                    disk_finished = True
 
963
            elif direction < 0:
 
964
                # inventory is before disk - missing.
 
965
                dirblock = [(relpath, basename, 'unknown', None, fileid, kind)
 
966
                    for relpath, basename, dkind, stat, fileid, kind in
 
967
                    current_inv[1]]
 
968
                yield (current_inv[0][0], current_inv[0][1]), dirblock
 
969
                try:
 
970
                    current_inv = next(inventory_iterator)
 
971
                except StopIteration:
 
972
                    inv_finished = True
 
973
            else:
 
974
                # versioned present directory
 
975
                # merge the inventory and disk data together
 
976
                dirblock = []
 
977
                for relpath, subiterator in itertools.groupby(sorted(
 
978
                    current_inv[1] + cur_disk_dir_content,
 
979
                    key=operator.itemgetter(0)), operator.itemgetter(1)):
 
980
                    path_elements = list(subiterator)
 
981
                    if len(path_elements) == 2:
 
982
                        inv_row, disk_row = path_elements
 
983
                        # versioned, present file
 
984
                        dirblock.append((inv_row[0],
 
985
                            inv_row[1], disk_row[2],
 
986
                            disk_row[3], inv_row[4],
 
987
                            inv_row[5]))
 
988
                    elif len(path_elements[0]) == 5:
 
989
                        # unknown disk file
 
990
                        dirblock.append((path_elements[0][0],
 
991
                            path_elements[0][1], path_elements[0][2],
 
992
                            path_elements[0][3], None, None))
 
993
                    elif len(path_elements[0]) == 6:
 
994
                        # versioned, absent file.
 
995
                        dirblock.append((path_elements[0][0],
 
996
                            path_elements[0][1], 'unknown', None,
 
997
                            path_elements[0][4], path_elements[0][5]))
 
998
                    else:
 
999
                        raise NotImplementedError('unreachable code')
 
1000
                yield current_inv[0], dirblock
 
1001
                try:
 
1002
                    current_inv = next(inventory_iterator)
 
1003
                except StopIteration:
 
1004
                    inv_finished = True
 
1005
                try:
 
1006
                    current_disk = next(disk_iterator)
 
1007
                except StopIteration:
 
1008
                    disk_finished = True
 
1009
 
 
1010
    def _walkdirs(self, prefix=u""):
 
1011
        if prefix != u"":
 
1012
            prefix += u"/"
 
1013
        prefix = prefix.encode('utf-8')
 
1014
        per_dir = defaultdict(set)
 
1015
        if prefix == b"":
 
1016
            per_dir[(u'', self.get_root_id())] = set()
 
1017
        def add_entry(path, kind):
 
1018
            if path == b'' or not path.startswith(prefix):
 
1019
                return
 
1020
            (dirname, child_name) = posixpath.split(path)
 
1021
            add_entry(dirname, 'directory')
 
1022
            dirname = dirname.decode("utf-8")
 
1023
            dir_file_id = self.path2id(dirname)
 
1024
            if not isinstance(value, tuple) or len(value) != 10:
 
1025
                raise ValueError(value)
 
1026
            per_dir[(dirname, dir_file_id)].add(
 
1027
                (path.decode("utf-8"), child_name.decode("utf-8"),
 
1028
                kind, None,
 
1029
                self.path2id(path.decode("utf-8")),
 
1030
                kind))
 
1031
        with self.lock_read():
 
1032
            for path, value in self.index.iteritems():
 
1033
                if self.mapping.is_special_file(path):
 
1034
                    continue
 
1035
                if not path.startswith(prefix):
 
1036
                    continue
 
1037
                add_entry(path, mode_kind(value.mode))
 
1038
        return ((k, sorted(v)) for (k, v) in sorted(per_dir.items()))
 
1039
 
 
1040
    def get_shelf_manager(self):
 
1041
        raise workingtree.ShelvingUnsupported()
 
1042
 
 
1043
    def store_uncommitted(self):
 
1044
        raise errors.StoringUncommittedNotSupported(self)
 
1045
 
 
1046
    def apply_inventory_delta(self, changes):
 
1047
        for (old_path, new_path, file_id, ie) in changes:
 
1048
            if old_path is not None:
 
1049
                (index, old_subpath) = self._lookup_index(old_path.encode('utf-8'))
 
1050
                try:
 
1051
                    self._index_del_entry(index, old_subpath)
 
1052
                except KeyError:
 
1053
                    pass
 
1054
                else:
 
1055
                    self._versioned_dirs = None
 
1056
            if new_path is not None and ie.kind != 'directory':
 
1057
                if ie.kind == 'tree-reference':
 
1058
                    self._index_add_entry(
 
1059
                            new_path, ie.kind,
 
1060
                            reference_revision=ie.reference_revision)
 
1061
                else:
 
1062
                    self._index_add_entry(new_path, ie.kind)
 
1063
        self.flush()
 
1064
 
 
1065
    def annotate_iter(self, path, file_id=None,
 
1066
                      default_revision=_mod_revision.CURRENT_REVISION):
 
1067
        """See Tree.annotate_iter
 
1068
 
 
1069
        This implementation will use the basis tree implementation if possible.
 
1070
        Lines not in the basis are attributed to CURRENT_REVISION
 
1071
 
 
1072
        If there are pending merges, lines added by those merges will be
 
1073
        incorrectly attributed to CURRENT_REVISION (but after committing, the
 
1074
        attribution will be correct).
 
1075
        """
 
1076
        with self.lock_read():
 
1077
            maybe_file_parent_keys = []
 
1078
            for parent_id in self.get_parent_ids():
 
1079
                try:
 
1080
                    parent_tree = self.revision_tree(parent_id)
 
1081
                except errors.NoSuchRevisionInTree:
 
1082
                    parent_tree = self.branch.repository.revision_tree(
 
1083
                            parent_id)
 
1084
                with parent_tree.lock_read():
 
1085
                    # TODO(jelmer): Use rename/copy tracker to find path name in parent
 
1086
                    parent_path = path
 
1087
                    try:
 
1088
                        kind = parent_tree.kind(parent_path)
 
1089
                    except errors.NoSuchFile:
 
1090
                        continue
 
1091
                    if kind != 'file':
 
1092
                        # Note: this is slightly unnecessary, because symlinks and
 
1093
                        # directories have a "text" which is the empty text, and we
 
1094
                        # know that won't mess up annotations. But it seems cleaner
 
1095
                        continue
 
1096
                    parent_text_key = (
 
1097
                        parent_path,
 
1098
                        parent_tree.get_file_revision(parent_path))
 
1099
                    if parent_text_key not in maybe_file_parent_keys:
 
1100
                        maybe_file_parent_keys.append(parent_text_key)
 
1101
            # Now we have the parents of this content
 
1102
            from breezy.annotate import Annotator
 
1103
            from .annotate import AnnotateProvider
 
1104
            annotate_provider = AnnotateProvider(
 
1105
                self.branch.repository._file_change_scanner)
 
1106
            annotator = Annotator(annotate_provider)
 
1107
 
 
1108
            from breezy.graph import Graph
 
1109
            graph = Graph(annotate_provider)
 
1110
            heads = graph.heads(maybe_file_parent_keys)
 
1111
            file_parent_keys = []
 
1112
            for key in maybe_file_parent_keys:
 
1113
                if key in heads:
 
1114
                    file_parent_keys.append(key)
 
1115
 
 
1116
            text = self.get_file_text(path)
 
1117
            this_key = (path, default_revision)
 
1118
            annotator.add_special_text(this_key, file_parent_keys, text)
 
1119
            annotations = [(key[-1], line)
 
1120
                           for key, line in annotator.annotate_flat(this_key)]
 
1121
            return annotations
 
1122
 
 
1123
    def _rename_one(self, from_rel, to_rel):
 
1124
        os.rename(self.abspath(from_rel), self.abspath(to_rel))
 
1125
 
 
1126
    def _build_checkout_with_index(self):
 
1127
        build_index_from_tree(
 
1128
            self.user_transport.local_abspath('.'),
 
1129
            self.control_transport.local_abspath("index"),
 
1130
            self.store,
 
1131
            None if self.branch.head is None else self.store[self.branch.head].tree)
 
1132
 
 
1133
    def reset_state(self, revision_ids=None):
 
1134
        """Reset the state of the working tree.
 
1135
 
 
1136
        This does a hard-reset to a last-known-good state. This is a way to
 
1137
        fix if something got corrupted (like the .git/index file)
 
1138
        """
 
1139
        with self.lock_tree_write():
 
1140
            if revision_ids is not None:
 
1141
                self.set_parent_ids(revision_ids)
 
1142
            self.index.clear()
 
1143
            self._index_dirty = True
 
1144
            if self.branch.head is not None:
 
1145
                for entry in self.store.iter_tree_contents(self.store[self.branch.head].tree):
 
1146
                    if not validate_path(entry.path):
 
1147
                        continue
 
1148
 
 
1149
                    if S_ISGITLINK(entry.mode):
 
1150
                        pass # TODO(jelmer): record and return submodule paths
 
1151
                    else:
 
1152
                        # Let's at least try to use the working tree file:
 
1153
                        try:
 
1154
                            st = self._lstat(self.abspath(entry.path.decode('utf-8')))
 
1155
                        except OSError:
 
1156
                            # But if it doesn't exist, we'll make something up.
 
1157
                            obj = self.store[entry.sha]
 
1158
                            st = os.stat_result((entry.mode, 0, 0, 0,
 
1159
                                  0, 0, len(obj.as_raw_string()), 0,
 
1160
                                  0, 0))
 
1161
                    (index, subpath) = self._lookup_index(entry.path)
 
1162
                    index[subpath] = index_entry_from_stat(st, entry.sha, 0)
 
1163
 
 
1164
    def pull(self, source, overwrite=False, stop_revision=None,
 
1165
             change_reporter=None, possible_transports=None, local=False,
 
1166
             show_base=False):
 
1167
        with self.lock_write(), source.lock_read():
 
1168
            old_revision = self.branch.last_revision()
 
1169
            basis_tree = self.basis_tree()
 
1170
            count = self.branch.pull(source, overwrite, stop_revision,
 
1171
                                     possible_transports=possible_transports,
 
1172
                                     local=local)
 
1173
            new_revision = self.branch.last_revision()
 
1174
            if new_revision != old_revision:
 
1175
                with basis_tree.lock_read():
 
1176
                    new_basis_tree = self.branch.basis_tree()
 
1177
                    merge.merge_inner(
 
1178
                                self.branch,
 
1179
                                new_basis_tree,
 
1180
                                basis_tree,
 
1181
                                this_tree=self,
 
1182
                                change_reporter=change_reporter,
 
1183
                                show_base=show_base)
 
1184
            return count
 
1185
 
 
1186
    def add_reference(self, sub_tree):
 
1187
        """Add a TreeReference to the tree, pointing at sub_tree.
 
1188
 
 
1189
        :param sub_tree: subtree to add.
 
1190
        """
 
1191
        with self.lock_tree_write():
 
1192
            try:
 
1193
                sub_tree_path = self.relpath(sub_tree.basedir)
 
1194
            except errors.PathNotChild:
 
1195
                raise BadReferenceTarget(
 
1196
                        self, sub_tree, 'Target not inside tree.')
 
1197
 
 
1198
            self._add([sub_tree_path], [None], ['tree-reference'])
 
1199
 
 
1200
    def _read_submodule_head(self, path):
 
1201
        return read_submodule_head(self.abspath(path))
 
1202
 
 
1203
    def get_reference_revision(self, path, file_id=None):
 
1204
        hexsha = self._read_submodule_head(path)
 
1205
        if hexsha is None:
 
1206
            return _mod_revision.NULL_REVISION
 
1207
        return self.branch.lookup_foreign_revision_id(hexsha)
 
1208
 
 
1209
    def get_nested_tree(self, path, file_id=None):
 
1210
        return workingtree.WorkingTree.open(self.abspath(path))
 
1211
 
 
1212
    def _directory_is_tree_reference(self, relpath):
 
1213
        # as a special case, if a directory contains control files then
 
1214
        # it's a tree reference, except that the root of the tree is not
 
1215
        return relpath and osutils.lexists(self.abspath(relpath) + u"/.git")
 
1216
 
 
1217
    def extract(self, sub_path, file_id=None, format=None):
 
1218
        """Extract a subtree from this tree.
 
1219
 
 
1220
        A new branch will be created, relative to the path for this tree.
 
1221
        """
 
1222
        def mkdirs(path):
 
1223
            segments = osutils.splitpath(path)
 
1224
            transport = self.branch.controldir.root_transport
 
1225
            for name in segments:
 
1226
                transport = transport.clone(name)
 
1227
                transport.ensure_base()
 
1228
            return transport
 
1229
 
 
1230
        with self.lock_tree_write():
 
1231
            self.flush()
 
1232
            branch_transport = mkdirs(sub_path)
 
1233
            if format is None:
 
1234
                format = self.controldir.cloning_metadir()
 
1235
            branch_transport.ensure_base()
 
1236
            branch_bzrdir = format.initialize_on_transport(branch_transport)
 
1237
            try:
 
1238
                repo = branch_bzrdir.find_repository()
 
1239
            except errors.NoRepositoryPresent:
 
1240
                repo = branch_bzrdir.create_repository()
 
1241
            if not repo.supports_rich_root():
 
1242
                raise errors.RootNotRich()
 
1243
            new_branch = branch_bzrdir.create_branch()
 
1244
            new_branch.pull(self.branch)
 
1245
            for parent_id in self.get_parent_ids():
 
1246
                new_branch.fetch(self.branch, parent_id)
 
1247
            tree_transport = self.controldir.root_transport.clone(sub_path)
 
1248
            if tree_transport.base != branch_transport.base:
 
1249
                tree_bzrdir = format.initialize_on_transport(tree_transport)
 
1250
                tree_bzrdir.set_branch_reference(new_branch)
 
1251
            else:
 
1252
                tree_bzrdir = branch_bzrdir
 
1253
            wt = tree_bzrdir.create_workingtree(_mod_revision.NULL_REVISION)
 
1254
            wt.set_parent_ids(self.get_parent_ids())
 
1255
            return wt
 
1256
 
 
1257
    def _get_check_refs(self):
 
1258
        """Return the references needed to perform a check of this tree.
 
1259
 
 
1260
        The default implementation returns no refs, and is only suitable for
 
1261
        trees that have no local caching and can commit on ghosts at any time.
 
1262
 
 
1263
        :seealso: breezy.check for details about check_refs.
 
1264
        """
 
1265
        return []
 
1266
 
 
1267
    def copy_content_into(self, tree, revision_id=None):
 
1268
        """Copy the current content and user files of this tree into tree."""
 
1269
        with self.lock_read():
 
1270
            if revision_id is None:
 
1271
                merge.transform_tree(tree, self)
 
1272
            else:
 
1273
                # TODO now merge from tree.last_revision to revision (to
 
1274
                # preserve user local changes)
 
1275
                try:
 
1276
                    other_tree = self.revision_tree(revision_id)
 
1277
                except errors.NoSuchRevision:
 
1278
                    other_tree = self.branch.repository.revision_tree(
 
1279
                            revision_id)
 
1280
 
 
1281
                merge.transform_tree(tree, other_tree)
 
1282
                if revision_id == _mod_revision.NULL_REVISION:
 
1283
                    new_parents = []
 
1284
                else:
 
1285
                    new_parents = [revision_id]
 
1286
                tree.set_parent_ids(new_parents)
 
1287
 
 
1288
 
 
1289
class GitWorkingTreeFormat(workingtree.WorkingTreeFormat):
 
1290
 
 
1291
    _tree_class = GitWorkingTree
 
1292
 
 
1293
    supports_versioned_directories = False
 
1294
 
 
1295
    supports_setting_file_ids = False
 
1296
 
 
1297
    supports_store_uncommitted = False
 
1298
 
 
1299
    supports_leftmost_parent_id_as_ghost = False
 
1300
 
 
1301
    supports_righthand_parent_id_as_ghost = False
 
1302
 
 
1303
    requires_normalized_unicode_filenames = True
 
1304
 
 
1305
    supports_merge_modified = False
 
1306
 
 
1307
    @property
 
1308
    def _matchingcontroldir(self):
 
1309
        from .dir import LocalGitControlDirFormat
 
1310
        return LocalGitControlDirFormat()
 
1311
 
 
1312
    def get_format_description(self):
 
1313
        return "Git Working Tree"
 
1314
 
 
1315
    def initialize(self, a_controldir, revision_id=None, from_branch=None,
 
1316
                   accelerator_tree=None, hardlink=False):
 
1317
        """See WorkingTreeFormat.initialize()."""
 
1318
        if not isinstance(a_controldir, LocalGitDir):
 
1319
            raise errors.IncompatibleFormat(self, a_controldir)
 
1320
        branch = a_controldir.open_branch(nascent_ok=True)
 
1321
        if revision_id is not None:
 
1322
            branch.set_last_revision(revision_id)
 
1323
        wt = GitWorkingTree(
 
1324
                a_controldir, a_controldir.open_repository(), branch)
 
1325
        for hook in MutableTree.hooks['post_build_tree']:
 
1326
            hook(wt)
 
1327
        return wt