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Viewing changes to breezy/git/workingtree.py

  • Committer: Breezy landing bot
  • Author(s): Jelmer Vernooij
  • Date: 2018-08-31 10:23:32 UTC
  • mfrom: (7078.10.1 httpy)
  • Revision ID: breezy.the.bot@gmail.com-20180831102332-oeccm4a2xv8ywrpr
Fix all but a few remaining HTTP tests on Python 3.

Merged from https://code.launchpad.net/~jelmer/brz/httpy/+merge/353543

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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
    changes_from_tree,
 
34
    index_entry_from_path,
 
35
    index_entry_from_stat,
 
36
    iter_fresh_entries,
 
37
    FLAG_STAGEMASK,
 
38
    read_submodule_head,
 
39
    validate_path,
 
40
    write_index_dict,
 
41
    )
 
42
from dulwich.object_store import (
 
43
    tree_lookup_path,
 
44
    )
 
45
from dulwich.objects import (
 
46
    Blob,
 
47
    Tree,
 
48
    S_IFGITLINK,
 
49
    S_ISGITLINK,
 
50
    ZERO_SHA,
 
51
    )
 
52
from dulwich.repo import (
 
53
    NotGitRepository,
 
54
    Repo as GitRepo,
 
55
    )
 
56
import os
 
57
import posixpath
 
58
import re
 
59
import stat
 
60
import sys
 
61
 
 
62
from .. import (
 
63
    conflicts as _mod_conflicts,
 
64
    errors,
 
65
    controldir as _mod_controldir,
 
66
    globbing,
 
67
    ignores,
 
68
    lock,
 
69
    merge,
 
70
    osutils,
 
71
    revision as _mod_revision,
 
72
    trace,
 
73
    transport as _mod_transport,
 
74
    tree,
 
75
    workingtree,
 
76
    )
 
77
from ..decorators import (
 
78
    only_raises,
 
79
    )
 
80
from ..bzr import (
 
81
    inventory,
 
82
    )
 
83
from ..mutabletree import (
 
84
    BadReferenceTarget,
 
85
    MutableTree,
 
86
    )
 
87
 
 
88
 
 
89
from .dir import (
 
90
    LocalGitDir,
 
91
    )
 
92
from .tree import (
 
93
    MutableGitIndexTree,
 
94
    )
 
95
from .mapping import (
 
96
    GitFileIdMap,
 
97
    mode_kind,
 
98
    )
 
99
 
 
100
IGNORE_FILENAME = ".gitignore"
 
101
 
 
102
 
 
103
class GitWorkingTree(MutableGitIndexTree,workingtree.WorkingTree):
 
104
    """A Git working tree."""
 
105
 
 
106
    def __init__(self, controldir, repo, branch):
 
107
        MutableGitIndexTree.__init__(self)
 
108
        basedir = controldir.root_transport.local_abspath('.')
 
109
        self.basedir = osutils.realpath(basedir)
 
110
        self.controldir = controldir
 
111
        self.repository = repo
 
112
        self.store = self.repository._git.object_store
 
113
        self.mapping = self.repository.get_mapping()
 
114
        self._branch = branch
 
115
        self._transport = controldir.transport
 
116
        self._format = GitWorkingTreeFormat()
 
117
        self.index = None
 
118
        self._index_file = None
 
119
        self.views = self._make_views()
 
120
        self._rules_searcher = None
 
121
        self._detect_case_handling()
 
122
        self._reset_data()
 
123
 
 
124
    def supports_tree_reference(self):
 
125
        return True
 
126
 
 
127
    def supports_rename_tracking(self):
 
128
        return False
 
129
 
 
130
    def _read_index(self):
 
131
        self.index = Index(self.control_transport.local_abspath('index'))
 
132
        self._index_dirty = False
 
133
 
 
134
    def lock_read(self):
 
135
        """Lock the repository for read operations.
 
136
 
 
137
        :return: A breezy.lock.LogicalLockResult.
 
138
        """
 
139
        if not self._lock_mode:
 
140
            self._lock_mode = 'r'
 
141
            self._lock_count = 1
 
142
            self._read_index()
 
143
        else:
 
144
            self._lock_count += 1
 
145
        self.branch.lock_read()
 
146
        return lock.LogicalLockResult(self.unlock)
 
147
 
 
148
    def _lock_write_tree(self):
 
149
        if not self._lock_mode:
 
150
            self._lock_mode = 'w'
 
151
            self._lock_count = 1
 
152
            try:
 
153
                self._index_file = GitFile(self.control_transport.local_abspath('index'), 'wb')
 
154
            except FileLocked:
 
155
                raise errors.LockContention('index')
 
156
            self._read_index()
 
157
        elif self._lock_mode == 'r':
 
158
            raise errors.ReadOnlyError(self)
 
159
        else:
 
160
            self._lock_count +=1
 
161
 
 
162
    def lock_tree_write(self):
 
163
        self.branch.lock_read()
 
164
        try:
 
165
            self._lock_write_tree()
 
166
            return lock.LogicalLockResult(self.unlock)
 
167
        except:
 
168
            self.branch.unlock()
 
169
            raise
 
170
 
 
171
    def lock_write(self, token=None):
 
172
        self.branch.lock_write()
 
173
        try:
 
174
            self._lock_write_tree()
 
175
            return lock.LogicalLockResult(self.unlock)
 
176
        except:
 
177
            self.branch.unlock()
 
178
            raise
 
179
 
 
180
    def is_locked(self):
 
181
        return self._lock_count >= 1
 
182
 
 
183
    def get_physical_lock_status(self):
 
184
        return False
 
185
 
 
186
    def break_lock(self):
 
187
        try:
 
188
            self.control_transport.delete('index.lock')
 
189
        except errors.NoSuchFile:
 
190
            pass
 
191
        self.branch.break_lock()
 
192
 
 
193
    @only_raises(errors.LockNotHeld, errors.LockBroken)
 
194
    def unlock(self):
 
195
        if not self._lock_count:
 
196
            return lock.cant_unlock_not_held(self)
 
197
        try:
 
198
            self._cleanup()
 
199
            self._lock_count -= 1
 
200
            if self._lock_count > 0:
 
201
                return
 
202
            if self._index_file is not None:
 
203
                if self._index_dirty:
 
204
                    self._flush(self._index_file)
 
205
                    self._index_file.close()
 
206
                else:
 
207
                    # Something else already triggered a write of the index
 
208
                    # file by calling .flush()
 
209
                    self._index_file.abort()
 
210
                self._index_file = None
 
211
            self._lock_mode = None
 
212
            self.index = None
 
213
        finally:
 
214
            self.branch.unlock()
 
215
 
 
216
    def _cleanup(self):
 
217
        pass
 
218
 
 
219
    def _detect_case_handling(self):
 
220
        try:
 
221
            self._transport.stat(".git/cOnFiG")
 
222
        except errors.NoSuchFile:
 
223
            self.case_sensitive = True
 
224
        else:
 
225
            self.case_sensitive = False
 
226
 
 
227
    def merge_modified(self):
 
228
        return {}
 
229
 
 
230
    def set_merge_modified(self, modified_hashes):
 
231
        raise errors.UnsupportedOperation(self.set_merge_modified, self)
 
232
 
 
233
    def set_parent_trees(self, parents_list, allow_leftmost_as_ghost=False):
 
234
        self.set_parent_ids([p for p, t in parents_list])
 
235
 
 
236
    def _set_merges_from_parent_ids(self, rhs_parent_ids):
 
237
        try:
 
238
            merges = [self.branch.lookup_bzr_revision_id(revid)[0] for revid in rhs_parent_ids]
 
239
        except errors.NoSuchRevision as e:
 
240
            raise errors.GhostRevisionUnusableHere(e.revision)
 
241
        if merges:
 
242
            self.control_transport.put_bytes('MERGE_HEAD', b'\n'.join(merges),
 
243
                mode=self.controldir._get_file_mode())
 
244
        else:
 
245
            try:
 
246
                self.control_transport.delete('MERGE_HEAD')
 
247
            except errors.NoSuchFile:
 
248
                pass
 
249
 
 
250
    def set_parent_ids(self, revision_ids, allow_leftmost_as_ghost=False):
 
251
        """Set the parent ids to revision_ids.
 
252
 
 
253
        See also set_parent_trees. This api will try to retrieve the tree data
 
254
        for each element of revision_ids from the trees repository. If you have
 
255
        tree data already available, it is more efficient to use
 
256
        set_parent_trees rather than set_parent_ids. set_parent_ids is however
 
257
        an easier API to use.
 
258
 
 
259
        :param revision_ids: The revision_ids to set as the parent ids of this
 
260
            working tree. Any of these may be ghosts.
 
261
        """
 
262
        with self.lock_tree_write():
 
263
            self._check_parents_for_ghosts(revision_ids,
 
264
                allow_leftmost_as_ghost=allow_leftmost_as_ghost)
 
265
            for revision_id in revision_ids:
 
266
                _mod_revision.check_not_reserved_id(revision_id)
 
267
 
 
268
            revision_ids = self._filter_parent_ids_by_ancestry(revision_ids)
 
269
 
 
270
            if len(revision_ids) > 0:
 
271
                self.set_last_revision(revision_ids[0])
 
272
            else:
 
273
                self.set_last_revision(_mod_revision.NULL_REVISION)
 
274
 
 
275
            self._set_merges_from_parent_ids(revision_ids[1:])
 
276
 
 
277
    def get_parent_ids(self):
 
278
        """See Tree.get_parent_ids.
 
279
 
 
280
        This implementation reads the pending merges list and last_revision
 
281
        value and uses that to decide what the parents list should be.
 
282
        """
 
283
        last_rev = _mod_revision.ensure_null(self._last_revision())
 
284
        if _mod_revision.NULL_REVISION == last_rev:
 
285
            parents = []
 
286
        else:
 
287
            parents = [last_rev]
 
288
        try:
 
289
            merges_bytes = self.control_transport.get_bytes('MERGE_HEAD')
 
290
        except errors.NoSuchFile:
 
291
            pass
 
292
        else:
 
293
            for l in osutils.split_lines(merges_bytes):
 
294
                revision_id = l.rstrip(b'\n')
 
295
                parents.append(self.branch.lookup_foreign_revision_id(revision_id))
 
296
        return parents
 
297
 
 
298
    def check_state(self):
 
299
        """Check that the working state is/isn't valid."""
 
300
        pass
 
301
 
 
302
    def remove(self, files, verbose=False, to_file=None, keep_files=True,
 
303
        force=False):
 
304
        """Remove nominated files from the working tree metadata.
 
305
 
 
306
        :param files: File paths relative to the basedir.
 
307
        :param keep_files: If true, the files will also be kept.
 
308
        :param force: Delete files and directories, even if they are changed
 
309
            and even if the directories are not empty.
 
310
        """
 
311
        if not isinstance(files, list):
 
312
            files = [files]
 
313
 
 
314
        if to_file is None:
 
315
            to_file = sys.stdout
 
316
 
 
317
        def backup(file_to_backup):
 
318
            abs_path = self.abspath(file_to_backup)
 
319
            backup_name = self.controldir._available_backup_name(file_to_backup)
 
320
            osutils.rename(abs_path, self.abspath(backup_name))
 
321
            return "removed %s (but kept a copy: %s)" % (
 
322
                file_to_backup, backup_name)
 
323
 
 
324
        # Sort needed to first handle directory content before the directory
 
325
        files_to_backup = []
 
326
 
 
327
        all_files = set()
 
328
 
 
329
        def recurse_directory_to_add_files(directory):
 
330
            # Recurse directory and add all files
 
331
            # so we can check if they have changed.
 
332
            for parent_info, file_infos in self.walkdirs(directory):
 
333
                for relpath, basename, kind, lstat, fileid, kind in file_infos:
 
334
                    # Is it versioned or ignored?
 
335
                    if self.is_versioned(relpath):
 
336
                        # Add nested content for deletion.
 
337
                        all_files.add(relpath)
 
338
                    else:
 
339
                        # Files which are not versioned
 
340
                        # should be treated as unknown.
 
341
                        files_to_backup.append(relpath)
 
342
 
 
343
        with self.lock_tree_write():
 
344
            for filepath in files:
 
345
                # Get file name into canonical form.
 
346
                abspath = self.abspath(filepath)
 
347
                filepath = self.relpath(abspath)
 
348
 
 
349
                if filepath:
 
350
                    all_files.add(filepath)
 
351
                    recurse_directory_to_add_files(filepath)
 
352
 
 
353
            files = list(all_files)
 
354
 
 
355
            if len(files) == 0:
 
356
                return # nothing to do
 
357
 
 
358
            # Sort needed to first handle directory content before the directory
 
359
            files.sort(reverse=True)
 
360
 
 
361
            # Bail out if we are going to delete files we shouldn't
 
362
            if not keep_files and not force:
 
363
                for (file_id, path, content_change, versioned, parent_id, name,
 
364
                     kind, executable) in self.iter_changes(self.basis_tree(),
 
365
                         include_unchanged=True, require_versioned=False,
 
366
                         want_unversioned=True, specific_files=files):
 
367
                    if versioned[0] == False:
 
368
                        # The record is unknown or newly added
 
369
                        files_to_backup.append(path[1])
 
370
                        files_to_backup.extend(osutils.parent_directories(path[1]))
 
371
                    elif (content_change and (kind[1] is not None) and
 
372
                            osutils.is_inside_any(files, path[1])):
 
373
                        # Versioned and changed, but not deleted, and still
 
374
                        # in one of the dirs to be deleted.
 
375
                        files_to_backup.append(path[1])
 
376
                        files_to_backup.extend(osutils.parent_directories(path[1]))
 
377
 
 
378
            for f in files:
 
379
                if f == '':
 
380
                    continue
 
381
 
 
382
                try:
 
383
                    kind = self.kind(f)
 
384
                except errors.NoSuchFile:
 
385
                    kind = None
 
386
 
 
387
                abs_path = self.abspath(f)
 
388
                if verbose:
 
389
                    # having removed it, it must be either ignored or unknown
 
390
                    if self.is_ignored(f):
 
391
                        new_status = 'I'
 
392
                    else:
 
393
                        new_status = '?'
 
394
                    kind_ch = osutils.kind_marker(kind)
 
395
                    to_file.write(new_status + '       ' + f + kind_ch + '\n')
 
396
                if kind is None:
 
397
                    message = "%s does not exist" % (f, )
 
398
                else:
 
399
                    if not keep_files:
 
400
                        if f in files_to_backup and not force:
 
401
                            message = backup(f)
 
402
                        else:
 
403
                            if kind == 'directory':
 
404
                                osutils.rmtree(abs_path)
 
405
                            else:
 
406
                                osutils.delete_any(abs_path)
 
407
                            message = "deleted %s" % (f,)
 
408
                    else:
 
409
                        message = "removed %s" % (f,)
 
410
                self._unversion_path(f)
 
411
 
 
412
                # print only one message (if any) per file.
 
413
                if message is not None:
 
414
                    trace.note(message)
 
415
            self._versioned_dirs = None
 
416
 
 
417
    def smart_add(self, file_list, recurse=True, action=None, save=True):
 
418
        if not file_list:
 
419
            file_list = [u'.']
 
420
 
 
421
        # expand any symlinks in the directory part, while leaving the
 
422
        # filename alone
 
423
        # only expanding if symlinks are supported avoids windows path bugs
 
424
        if osutils.has_symlinks():
 
425
            file_list = list(map(osutils.normalizepath, file_list))
 
426
 
 
427
        conflicts_related = set()
 
428
        for c in self.conflicts():
 
429
            conflicts_related.update(c.associated_filenames())
 
430
 
 
431
        added = []
 
432
        ignored = {}
 
433
        user_dirs = []
 
434
        def call_action(filepath, kind):
 
435
            if action is not None:
 
436
                parent_path = posixpath.dirname(filepath)
 
437
                parent_id = self.path2id(parent_path)
 
438
                parent_ie = self._get_dir_ie(parent_path, parent_id)
 
439
                file_id = action(self, parent_ie, filepath, kind)
 
440
                if file_id is not None:
 
441
                    raise workingtree.SettingFileIdUnsupported()
 
442
 
 
443
        with self.lock_tree_write():
 
444
            for filepath in osutils.canonical_relpaths(self.basedir, file_list):
 
445
                filepath, can_access = osutils.normalized_filename(filepath)
 
446
                if not can_access:
 
447
                    raise errors.InvalidNormalization(filepath)
 
448
 
 
449
                abspath = self.abspath(filepath)
 
450
                kind = osutils.file_kind(abspath)
 
451
                if kind in ("file", "symlink"):
 
452
                    (index, subpath) = self._lookup_index(filepath.encode('utf-8'))
 
453
                    if subpath in index:
 
454
                        # Already present
 
455
                        continue
 
456
                    call_action(filepath, kind)
 
457
                    if save:
 
458
                        self._index_add_entry(filepath, kind)
 
459
                    added.append(filepath)
 
460
                elif kind == "directory":
 
461
                    (index, subpath) = self._lookup_index(filepath.encode('utf-8'))
 
462
                    if subpath not in index:
 
463
                        call_action(filepath, kind)
 
464
                    if recurse:
 
465
                        user_dirs.append(filepath)
 
466
                else:
 
467
                    raise errors.BadFileKindError(filename=abspath, kind=kind)
 
468
            for user_dir in user_dirs:
 
469
                abs_user_dir = self.abspath(user_dir)
 
470
                if user_dir != '':
 
471
                    try:
 
472
                        transport = _mod_transport.get_transport_from_path(abs_user_dir)
 
473
                        _mod_controldir.ControlDirFormat.find_format(transport)
 
474
                        subtree = True
 
475
                    except errors.NotBranchError:
 
476
                        subtree = False
 
477
                    except errors.UnsupportedFormatError:
 
478
                        subtree = False
 
479
                else:
 
480
                    subtree = False
 
481
                if subtree:
 
482
                    trace.warning('skipping nested tree %r', abs_user_dir)
 
483
                    continue
 
484
 
 
485
                for name in os.listdir(abs_user_dir):
 
486
                    subp = os.path.join(user_dir, name)
 
487
                    if self.is_control_filename(subp) or self.mapping.is_special_file(subp):
 
488
                        continue
 
489
                    ignore_glob = self.is_ignored(subp)
 
490
                    if ignore_glob is not None:
 
491
                        ignored.setdefault(ignore_glob, []).append(subp)
 
492
                        continue
 
493
                    abspath = self.abspath(subp)
 
494
                    kind = osutils.file_kind(abspath)
 
495
                    if kind == "directory":
 
496
                        user_dirs.append(subp)
 
497
                    else:
 
498
                        if subp in self.index:
 
499
                            # Already present
 
500
                            continue
 
501
                        if subp in conflicts_related:
 
502
                            continue
 
503
                        call_action(filepath, kind)
 
504
                        if save:
 
505
                            self._index_add_entry(subp, kind)
 
506
                        added.append(subp)
 
507
            return added, ignored
 
508
 
 
509
    def has_filename(self, filename):
 
510
        return osutils.lexists(self.abspath(filename))
 
511
 
 
512
    def _iter_files_recursive(self, from_dir=None, include_dirs=False):
 
513
        if from_dir is None:
 
514
            from_dir = u""
 
515
        for (dirpath, dirnames, filenames) in os.walk(self.abspath(from_dir).encode(osutils._fs_enc)):
 
516
            dir_relpath = dirpath[len(self.basedir):].strip(b"/")
 
517
            if self.controldir.is_control_filename(dir_relpath.decode(osutils._fs_enc)):
 
518
                continue
 
519
            for name in list(dirnames):
 
520
                if self.controldir.is_control_filename(name.decode(osutils._fs_enc)):
 
521
                    dirnames.remove(name)
 
522
                    continue
 
523
                relpath = os.path.join(dir_relpath, name)
 
524
                if include_dirs:
 
525
                    try:
 
526
                        yield relpath.decode(osutils._fs_enc)
 
527
                    except UnicodeDecodeError:
 
528
                        raise errors.BadFilenameEncoding(
 
529
                            relpath, osutils._fs_enc)
 
530
                if not self._has_dir(relpath):
 
531
                    dirnames.remove(name)
 
532
            for name in filenames:
 
533
                if not self.mapping.is_special_file(name):
 
534
                    yp = os.path.join(dir_relpath, name)
 
535
                    try:
 
536
                        yield yp.decode(osutils._fs_enc)
 
537
                    except UnicodeDecodeError:
 
538
                        raise errors.BadFilenameEncoding(
 
539
                            yp, osutils._fs_enc)
 
540
 
 
541
    def extras(self):
 
542
        """Yield all unversioned files in this WorkingTree.
 
543
        """
 
544
        with self.lock_read():
 
545
            index_paths = set([p.decode('utf-8') for p, i in self._recurse_index_entries()])
 
546
            all_paths = set(self._iter_files_recursive(include_dirs=True))
 
547
            for p in (all_paths - index_paths):
 
548
                if not self._has_dir(p.encode('utf-8')):
 
549
                    yield p
 
550
 
 
551
    def _gather_kinds(self, files, kinds):
 
552
        """See MutableTree._gather_kinds."""
 
553
        with self.lock_tree_write():
 
554
            for pos, f in enumerate(files):
 
555
                if kinds[pos] is None:
 
556
                    fullpath = osutils.normpath(self.abspath(f))
 
557
                    try:
 
558
                         kind = osutils.file_kind(fullpath)
 
559
                    except OSError as e:
 
560
                        if e.errno == errno.ENOENT:
 
561
                            raise errors.NoSuchFile(fullpath)
 
562
                    if kind == 'directory' and f != '' and os.path.exists(os.path.join(fullpath, '.git')):
 
563
                        kind = 'tree-reference'
 
564
                    kinds[pos] = kind
 
565
 
 
566
    def flush(self):
 
567
        if self._lock_mode != 'w':
 
568
            raise errors.NotWriteLocked(self)
 
569
        # TODO(jelmer): This shouldn't be writing in-place, but index.lock is
 
570
        # already in use and GitFile doesn't allow overriding the lock file name :(
 
571
        f = open(self.control_transport.local_abspath('index'), 'wb')
 
572
        # Note that _flush will close the file
 
573
        self._flush(f)
 
574
 
 
575
    def _flush(self, f):
 
576
        try:
 
577
            shaf = SHA1Writer(f)
 
578
            write_index_dict(shaf, self.index)
 
579
            shaf.close()
 
580
        except:
 
581
            f.abort()
 
582
            raise
 
583
        self._index_dirty = False
 
584
 
 
585
    def has_or_had_id(self, file_id):
 
586
        if self.has_id(file_id):
 
587
            return True
 
588
        if self.had_id(file_id):
 
589
            return True
 
590
        return False
 
591
 
 
592
    def had_id(self, file_id):
 
593
        path = self._basis_fileid_map.lookup_path(file_id)
 
594
        try:
 
595
            head = self.repository._git.head()
 
596
        except KeyError:
 
597
            # Assume no if basis is not accessible
 
598
            return False
 
599
        try:
 
600
            root_tree = self.store[head].tree
 
601
        except KeyError:
 
602
            return False
 
603
        try:
 
604
            tree_lookup_path(self.store.__getitem__, root_tree, path.encode('utf-8'))
 
605
        except KeyError:
 
606
            return False
 
607
        else:
 
608
            return True
 
609
 
 
610
    def get_file_mtime(self, path, file_id=None):
 
611
        """See Tree.get_file_mtime."""
 
612
        try:
 
613
            return self._lstat(path).st_mtime
 
614
        except OSError as e:
 
615
            if e.errno == errno.ENOENT:
 
616
                raise errors.NoSuchFile(path)
 
617
            raise
 
618
 
 
619
    def is_ignored(self, filename):
 
620
        r"""Check whether the filename matches an ignore pattern.
 
621
 
 
622
        If the file is ignored, returns the pattern which caused it to
 
623
        be ignored, otherwise None.  So this can simply be used as a
 
624
        boolean if desired."""
 
625
        if getattr(self, '_global_ignoreglobster', None) is None:
 
626
            ignore_globs = set()
 
627
            ignore_globs.update(ignores.get_runtime_ignores())
 
628
            ignore_globs.update(ignores.get_user_ignores())
 
629
            self._global_ignoreglobster = globbing.ExceptionGlobster(ignore_globs)
 
630
        match = self._global_ignoreglobster.match(filename)
 
631
        if match is not None:
 
632
            return match
 
633
        try:
 
634
            if self.kind(filename) == 'directory':
 
635
                filename += '/'
 
636
        except errors.NoSuchFile:
 
637
            pass
 
638
        filename = filename.lstrip('/')
 
639
        ignore_manager = self._get_ignore_manager()
 
640
        ps = list(ignore_manager.find_matching(filename))
 
641
        if not ps:
 
642
            return None
 
643
        if not ps[-1].is_exclude:
 
644
            return None
 
645
        return bytes(ps[-1])
 
646
 
 
647
    def _get_ignore_manager(self):
 
648
        ignoremanager = getattr(self, '_ignoremanager', None)
 
649
        if ignoremanager is not None:
 
650
            return ignoremanager
 
651
 
 
652
        ignore_manager = IgnoreFilterManager.from_repo(self.repository._git)
 
653
        self._ignoremanager = ignore_manager
 
654
        return ignore_manager
 
655
 
 
656
    def _flush_ignore_list_cache(self):
 
657
        self._ignoremanager = None
 
658
 
 
659
    def set_last_revision(self, revid):
 
660
        if _mod_revision.is_null(revid):
 
661
            self.branch.set_last_revision_info(0, revid)
 
662
            return False
 
663
        _mod_revision.check_not_reserved_id(revid)
 
664
        try:
 
665
            self.branch.generate_revision_history(revid)
 
666
        except errors.NoSuchRevision:
 
667
            raise errors.GhostRevisionUnusableHere(revid)
 
668
 
 
669
    def _reset_data(self):
 
670
        try:
 
671
            head = self.repository._git.head()
 
672
        except KeyError:
 
673
            self._basis_fileid_map = GitFileIdMap({}, self.mapping)
 
674
        else:
 
675
            self._basis_fileid_map = self.mapping.get_fileid_map(
 
676
                self.store.__getitem__, self.store[head].tree)
 
677
        self._fileid_map = self._basis_fileid_map.copy()
 
678
 
 
679
    def get_file_verifier(self, path, file_id=None, stat_value=None):
 
680
        with self.lock_read():
 
681
            (index, subpath) = self._lookup_index(path.encode('utf-8'))
 
682
            try:
 
683
                return ("GIT", index[subpath].sha)
 
684
            except KeyError:
 
685
                if self._has_dir(path):
 
686
                    return ("GIT", None)
 
687
                raise errors.NoSuchFile(path)
 
688
 
 
689
    def get_file_sha1(self, path, file_id=None, stat_value=None):
 
690
        with self.lock_read():
 
691
            if not self.is_versioned(path):
 
692
                raise errors.NoSuchFile(path)
 
693
            abspath = self.abspath(path)
 
694
            try:
 
695
                return osutils.sha_file_by_name(abspath)
 
696
            except OSError as e:
 
697
                if e.errno in (errno.EISDIR, errno.ENOENT):
 
698
                    return None
 
699
                raise
 
700
 
 
701
    def revision_tree(self, revid):
 
702
        return self.repository.revision_tree(revid)
 
703
 
 
704
    def _is_executable_from_path_and_stat_from_stat(self, path, stat_result):
 
705
        mode = stat_result.st_mode
 
706
        return bool(stat.S_ISREG(mode) and stat.S_IEXEC & mode)
 
707
 
 
708
    def _is_executable_from_path_and_stat_from_basis(self, path, stat_result):
 
709
        return self.basis_tree().is_executable(path)
 
710
 
 
711
    def stored_kind(self, path, file_id=None):
 
712
        with self.lock_read():
 
713
            encoded_path = path.encode('utf-8')
 
714
            (index, subpath) = self._lookup_index(encoded_path)
 
715
            try:
 
716
                return mode_kind(index[subpath].mode)
 
717
            except KeyError:
 
718
                # Maybe it's a directory?
 
719
                if self._has_dir(encoded_path):
 
720
                    return "directory"
 
721
                raise errors.NoSuchFile(path)
 
722
 
 
723
    def _lstat(self, path):
 
724
        return os.lstat(self.abspath(path))
 
725
 
 
726
    def _live_entry(self, path):
 
727
        return index_entry_from_path(self.abspath(path.decode('utf-8')).encode(osutils._fs_enc))
 
728
 
 
729
    def is_executable(self, path, file_id=None):
 
730
        with self.lock_read():
 
731
            if getattr(self, "_supports_executable", osutils.supports_executable)():
 
732
                mode = self._lstat(path).st_mode
 
733
            else:
 
734
                (index, subpath) = self._lookup_index(path.encode('utf-8'))
 
735
                try:
 
736
                    mode = index[subpath].mode
 
737
                except KeyError:
 
738
                    mode = 0
 
739
            return bool(stat.S_ISREG(mode) and stat.S_IEXEC & mode)
 
740
 
 
741
    def _is_executable_from_path_and_stat(self, path, stat_result):
 
742
        if getattr(self, "_supports_executable", osutils.supports_executable)():
 
743
            return self._is_executable_from_path_and_stat_from_stat(path, stat_result)
 
744
        else:
 
745
            return self._is_executable_from_path_and_stat_from_basis(path, stat_result)
 
746
 
 
747
    def list_files(self, include_root=False, from_dir=None, recursive=True):
 
748
        if from_dir is None:
 
749
            from_dir = u""
 
750
        dir_ids = {}
 
751
        fk_entries = {'directory': tree.TreeDirectory,
 
752
                      'file': tree.TreeFile,
 
753
                      'symlink': tree.TreeLink,
 
754
                      'tree-reference': tree.TreeReference}
 
755
        with self.lock_read():
 
756
            root_ie = self._get_dir_ie(u"", None)
 
757
            if include_root and not from_dir:
 
758
                yield "", "V", root_ie.kind, root_ie.file_id, root_ie
 
759
            dir_ids[u""] = root_ie.file_id
 
760
            if recursive:
 
761
                path_iterator = sorted(self._iter_files_recursive(from_dir, include_dirs=True))
 
762
            else:
 
763
                path_iterator = sorted([os.path.join(from_dir, name.decode(osutils._fs_enc)) for name in
 
764
                    os.listdir(self.abspath(from_dir).encode(osutils._fs_enc))
 
765
                    if not self.controldir.is_control_filename(name.decode(osutils._fs_enc))
 
766
                    and not self.mapping.is_special_file(name.decode(osutils._fs_enc))])
 
767
            for path in path_iterator:
 
768
                try:
 
769
                    encoded_path = path.encode("utf-8")
 
770
                except UnicodeEncodeError:
 
771
                    raise errors.BadFilenameEncoding(
 
772
                        path, osutils._fs_enc)
 
773
                (index, index_path) = self._lookup_index(encoded_path)
 
774
                try:
 
775
                    value = index[index_path]
 
776
                except KeyError:
 
777
                    value = None
 
778
                kind = self.kind(path)
 
779
                parent, name = posixpath.split(path)
 
780
                for dir_path, dir_ie in self._add_missing_parent_ids(parent, dir_ids):
 
781
                    pass
 
782
                if kind in ('directory', 'tree-reference'):
 
783
                    if path != from_dir:
 
784
                        if self._has_dir(encoded_path):
 
785
                            ie = self._get_dir_ie(path, self.path2id(path))
 
786
                            status = "V"
 
787
                            file_id = ie.file_id
 
788
                        elif self.is_ignored(path):
 
789
                            status = "I"
 
790
                            ie = fk_entries[kind]()
 
791
                            file_id = None
 
792
                        else:
 
793
                            status = "?"
 
794
                            ie = fk_entries[kind]()
 
795
                            file_id = None
 
796
                        yield posixpath.relpath(path, from_dir), status, kind, file_id, ie
 
797
                    continue
 
798
                if value is not None:
 
799
                    ie = self._get_file_ie(name, path, value, dir_ids[parent])
 
800
                    yield posixpath.relpath(path, from_dir), "V", ie.kind, ie.file_id, ie
 
801
                else:
 
802
                    ie = fk_entries[kind]()
 
803
                    yield posixpath.relpath(path, from_dir), ("I" if self.is_ignored(path) else "?"), kind, None, ie
 
804
 
 
805
    def all_file_ids(self):
 
806
        with self.lock_read():
 
807
            ids = {u"": self.path2id("")}
 
808
            for path in self.index:
 
809
                if self.mapping.is_special_file(path):
 
810
                    continue
 
811
                path = path.decode("utf-8")
 
812
                parent = posixpath.dirname(path).strip("/")
 
813
                for e in self._add_missing_parent_ids(parent, ids):
 
814
                    pass
 
815
                ids[path] = self.path2id(path)
 
816
            return set(ids.values())
 
817
 
 
818
    def all_versioned_paths(self):
 
819
        with self.lock_read():
 
820
            paths = {u""}
 
821
            for path in self.index:
 
822
                if self.mapping.is_special_file(path):
 
823
                    continue
 
824
                path = path.decode("utf-8")
 
825
                paths.add(path)
 
826
                while path != "":
 
827
                    path = posixpath.dirname(path).strip("/")
 
828
                    if path in paths:
 
829
                        break
 
830
                    paths.add(path)
 
831
            return paths
 
832
 
 
833
    def iter_child_entries(self, path, file_id=None):
 
834
        encoded_path = path.encode('utf-8')
 
835
        with self.lock_read():
 
836
            parent_id = self.path2id(path)
 
837
            found_any = False
 
838
            seen_children = set()
 
839
            for item_path, value in self.index.iteritems():
 
840
                decoded_item_path = item_path.decode('utf-8')
 
841
                if self.mapping.is_special_file(item_path):
 
842
                    continue
 
843
                if not osutils.is_inside(path, decoded_item_path):
 
844
                    continue
 
845
                found_any = True
 
846
                subpath = posixpath.relpath(decoded_item_path, path)
 
847
                if '/' in subpath:
 
848
                    dirname = subpath.split('/', 1)[0]
 
849
                    file_ie = self._get_dir_ie(posixpath.join(path, dirname), parent_id)
 
850
                else:
 
851
                    (unused_parent, name) = posixpath.split(decoded_item_path)
 
852
                    file_ie = self._get_file_ie(
 
853
                        name, decoded_item_path, value, parent_id)
 
854
                yield file_ie
 
855
            if not found_any and path != u'':
 
856
                raise errors.NoSuchFile(path)
 
857
 
 
858
    def conflicts(self):
 
859
        with self.lock_read():
 
860
            conflicts = _mod_conflicts.ConflictList()
 
861
            for item_path, value in self.index.iteritems():
 
862
                if value.flags & FLAG_STAGEMASK:
 
863
                    conflicts.append(_mod_conflicts.TextConflict(item_path.decode('utf-8')))
 
864
            return conflicts
 
865
 
 
866
    def set_conflicts(self, conflicts):
 
867
        by_path = set()
 
868
        for conflict in conflicts:
 
869
            if conflict.typestring in ('text conflict', 'contents conflict'):
 
870
                by_path.add(conflict.path.encode('utf-8'))
 
871
            else:
 
872
                raise errors.UnsupportedOperation(self.set_conflicts, self)
 
873
        with self.lock_tree_write():
 
874
            for path in self.index:
 
875
                self._set_conflicted(path, path in by_path)
 
876
 
 
877
    def _set_conflicted(self, path, conflicted):
 
878
        trace.mutter('change conflict: %r -> %r', path, conflicted)
 
879
        value = self.index[path]
 
880
        self._index_dirty = True
 
881
        if conflicted:
 
882
            self.index[path] = (value[:9] + (value[9] | FLAG_STAGEMASK, ))
 
883
        else:
 
884
            self.index[path] = (value[:9] + (value[9] &~ FLAG_STAGEMASK, ))
 
885
 
 
886
    def add_conflicts(self, new_conflicts):
 
887
        with self.lock_tree_write():
 
888
            for conflict in new_conflicts:
 
889
                if conflict.typestring in ('text conflict', 'contents conflict'):
 
890
                    try:
 
891
                        self._set_conflicted(conflict.path.encode('utf-8'), True)
 
892
                    except KeyError:
 
893
                        raise errors.UnsupportedOperation(self.add_conflicts, self)
 
894
                else:
 
895
                    raise errors.UnsupportedOperation(self.add_conflicts, self)
 
896
 
 
897
    def walkdirs(self, prefix=""):
 
898
        """Walk the directories of this tree.
 
899
 
 
900
        returns a generator which yields items in the form:
 
901
                ((curren_directory_path, fileid),
 
902
                 [(file1_path, file1_name, file1_kind, (lstat), file1_id,
 
903
                   file1_kind), ... ])
 
904
 
 
905
        This API returns a generator, which is only valid during the current
 
906
        tree transaction - within a single lock_read or lock_write duration.
 
907
 
 
908
        If the tree is not locked, it may cause an error to be raised,
 
909
        depending on the tree implementation.
 
910
        """
 
911
        from bisect import bisect_left
 
912
        import operator
 
913
        disk_top = self.abspath(prefix)
 
914
        if disk_top.endswith('/'):
 
915
            disk_top = disk_top[:-1]
 
916
        top_strip_len = len(disk_top) + 1
 
917
        inventory_iterator = self._walkdirs(prefix)
 
918
        disk_iterator = osutils.walkdirs(disk_top, prefix)
 
919
        try:
 
920
            current_disk = next(disk_iterator)
 
921
            disk_finished = False
 
922
        except OSError as e:
 
923
            if not (e.errno == errno.ENOENT or
 
924
                (sys.platform == 'win32' and e.errno == ERROR_PATH_NOT_FOUND)):
 
925
                raise
 
926
            current_disk = None
 
927
            disk_finished = True
 
928
        try:
 
929
            current_inv = next(inventory_iterator)
 
930
            inv_finished = False
 
931
        except StopIteration:
 
932
            current_inv = None
 
933
            inv_finished = True
 
934
        while not inv_finished or not disk_finished:
 
935
            if current_disk:
 
936
                ((cur_disk_dir_relpath, cur_disk_dir_path_from_top),
 
937
                    cur_disk_dir_content) = current_disk
 
938
            else:
 
939
                ((cur_disk_dir_relpath, cur_disk_dir_path_from_top),
 
940
                    cur_disk_dir_content) = ((None, None), None)
 
941
            if not disk_finished:
 
942
                # strip out .bzr dirs
 
943
                if (cur_disk_dir_path_from_top[top_strip_len:] == '' and
 
944
                    len(cur_disk_dir_content) > 0):
 
945
                    # osutils.walkdirs can be made nicer -
 
946
                    # yield the path-from-prefix rather than the pathjoined
 
947
                    # value.
 
948
                    bzrdir_loc = bisect_left(cur_disk_dir_content,
 
949
                        ('.git', '.git'))
 
950
                    if (bzrdir_loc < len(cur_disk_dir_content)
 
951
                        and self.controldir.is_control_filename(
 
952
                            cur_disk_dir_content[bzrdir_loc][0])):
 
953
                        # we dont yield the contents of, or, .bzr itself.
 
954
                        del cur_disk_dir_content[bzrdir_loc]
 
955
            if inv_finished:
 
956
                # everything is unknown
 
957
                direction = 1
 
958
            elif disk_finished:
 
959
                # everything is missing
 
960
                direction = -1
 
961
            else:
 
962
                direction = ((current_inv[0][0] > cur_disk_dir_relpath) -
 
963
                             (current_inv[0][0] < cur_disk_dir_relpath))
 
964
            if direction > 0:
 
965
                # disk is before inventory - unknown
 
966
                dirblock = [(relpath, basename, kind, stat, None, None) for
 
967
                    relpath, basename, kind, stat, top_path in
 
968
                    cur_disk_dir_content]
 
969
                yield (cur_disk_dir_relpath, None), dirblock
 
970
                try:
 
971
                    current_disk = next(disk_iterator)
 
972
                except StopIteration:
 
973
                    disk_finished = True
 
974
            elif direction < 0:
 
975
                # inventory is before disk - missing.
 
976
                dirblock = [(relpath, basename, 'unknown', None, fileid, kind)
 
977
                    for relpath, basename, dkind, stat, fileid, kind in
 
978
                    current_inv[1]]
 
979
                yield (current_inv[0][0], current_inv[0][1]), dirblock
 
980
                try:
 
981
                    current_inv = next(inventory_iterator)
 
982
                except StopIteration:
 
983
                    inv_finished = True
 
984
            else:
 
985
                # versioned present directory
 
986
                # merge the inventory and disk data together
 
987
                dirblock = []
 
988
                for relpath, subiterator in itertools.groupby(sorted(
 
989
                    current_inv[1] + cur_disk_dir_content,
 
990
                    key=operator.itemgetter(0)), operator.itemgetter(1)):
 
991
                    path_elements = list(subiterator)
 
992
                    if len(path_elements) == 2:
 
993
                        inv_row, disk_row = path_elements
 
994
                        # versioned, present file
 
995
                        dirblock.append((inv_row[0],
 
996
                            inv_row[1], disk_row[2],
 
997
                            disk_row[3], inv_row[4],
 
998
                            inv_row[5]))
 
999
                    elif len(path_elements[0]) == 5:
 
1000
                        # unknown disk file
 
1001
                        dirblock.append((path_elements[0][0],
 
1002
                            path_elements[0][1], path_elements[0][2],
 
1003
                            path_elements[0][3], None, None))
 
1004
                    elif len(path_elements[0]) == 6:
 
1005
                        # versioned, absent file.
 
1006
                        dirblock.append((path_elements[0][0],
 
1007
                            path_elements[0][1], 'unknown', None,
 
1008
                            path_elements[0][4], path_elements[0][5]))
 
1009
                    else:
 
1010
                        raise NotImplementedError('unreachable code')
 
1011
                yield current_inv[0], dirblock
 
1012
                try:
 
1013
                    current_inv = next(inventory_iterator)
 
1014
                except StopIteration:
 
1015
                    inv_finished = True
 
1016
                try:
 
1017
                    current_disk = next(disk_iterator)
 
1018
                except StopIteration:
 
1019
                    disk_finished = True
 
1020
 
 
1021
    def _walkdirs(self, prefix=u""):
 
1022
        if prefix != u"":
 
1023
            prefix += u"/"
 
1024
        prefix = prefix.encode('utf-8')
 
1025
        per_dir = defaultdict(set)
 
1026
        if prefix == b"":
 
1027
            per_dir[(u'', self.get_root_id())] = set()
 
1028
        def add_entry(path, kind):
 
1029
            if path == b'' or not path.startswith(prefix):
 
1030
                return
 
1031
            (dirname, child_name) = posixpath.split(path)
 
1032
            add_entry(dirname, 'directory')
 
1033
            dirname = dirname.decode("utf-8")
 
1034
            dir_file_id = self.path2id(dirname)
 
1035
            if not isinstance(value, tuple) or len(value) != 10:
 
1036
                raise ValueError(value)
 
1037
            per_dir[(dirname, dir_file_id)].add(
 
1038
                (path.decode("utf-8"), child_name.decode("utf-8"),
 
1039
                kind, None,
 
1040
                self.path2id(path.decode("utf-8")),
 
1041
                kind))
 
1042
        with self.lock_read():
 
1043
            for path, value in self.index.iteritems():
 
1044
                if self.mapping.is_special_file(path):
 
1045
                    continue
 
1046
                if not path.startswith(prefix):
 
1047
                    continue
 
1048
                add_entry(path, mode_kind(value.mode))
 
1049
        return ((k, sorted(v)) for (k, v) in sorted(per_dir.items()))
 
1050
 
 
1051
    def get_shelf_manager(self):
 
1052
        raise workingtree.ShelvingUnsupported()
 
1053
 
 
1054
    def store_uncommitted(self):
 
1055
        raise errors.StoringUncommittedNotSupported(self)
 
1056
 
 
1057
    def apply_inventory_delta(self, changes):
 
1058
        for (old_path, new_path, file_id, ie) in changes:
 
1059
            if old_path is not None:
 
1060
                (index, old_subpath) = self._lookup_index(old_path.encode('utf-8'))
 
1061
                try:
 
1062
                    self._index_del_entry(index, old_subpath)
 
1063
                except KeyError:
 
1064
                    pass
 
1065
                else:
 
1066
                    self._versioned_dirs = None
 
1067
            if new_path is not None and ie.kind != 'directory':
 
1068
                if ie.kind == 'tree-reference':
 
1069
                    self._index_add_entry(
 
1070
                            new_path, ie.kind,
 
1071
                            reference_revision=ie.reference_revision)
 
1072
                else:
 
1073
                    self._index_add_entry(new_path, ie.kind)
 
1074
        self.flush()
 
1075
 
 
1076
    def annotate_iter(self, path, file_id=None,
 
1077
                      default_revision=_mod_revision.CURRENT_REVISION):
 
1078
        """See Tree.annotate_iter
 
1079
 
 
1080
        This implementation will use the basis tree implementation if possible.
 
1081
        Lines not in the basis are attributed to CURRENT_REVISION
 
1082
 
 
1083
        If there are pending merges, lines added by those merges will be
 
1084
        incorrectly attributed to CURRENT_REVISION (but after committing, the
 
1085
        attribution will be correct).
 
1086
        """
 
1087
        with self.lock_read():
 
1088
            maybe_file_parent_keys = []
 
1089
            for parent_id in self.get_parent_ids():
 
1090
                try:
 
1091
                    parent_tree = self.revision_tree(parent_id)
 
1092
                except errors.NoSuchRevisionInTree:
 
1093
                    parent_tree = self.branch.repository.revision_tree(
 
1094
                            parent_id)
 
1095
                with parent_tree.lock_read():
 
1096
                    # TODO(jelmer): Use rename/copy tracker to find path name in parent
 
1097
                    parent_path = path
 
1098
                    try:
 
1099
                        kind = parent_tree.kind(parent_path)
 
1100
                    except errors.NoSuchFile:
 
1101
                        continue
 
1102
                    if kind != 'file':
 
1103
                        # Note: this is slightly unnecessary, because symlinks and
 
1104
                        # directories have a "text" which is the empty text, and we
 
1105
                        # know that won't mess up annotations. But it seems cleaner
 
1106
                        continue
 
1107
                    parent_text_key = (
 
1108
                        parent_path,
 
1109
                        parent_tree.get_file_revision(parent_path))
 
1110
                    if parent_text_key not in maybe_file_parent_keys:
 
1111
                        maybe_file_parent_keys.append(parent_text_key)
 
1112
            # Now we have the parents of this content
 
1113
            from breezy.annotate import Annotator
 
1114
            from .annotate import AnnotateProvider
 
1115
            annotate_provider = AnnotateProvider(
 
1116
                self.branch.repository._file_change_scanner)
 
1117
            annotator = Annotator(annotate_provider)
 
1118
 
 
1119
            from breezy.graph import Graph
 
1120
            graph = Graph(annotate_provider)
 
1121
            heads = graph.heads(maybe_file_parent_keys)
 
1122
            file_parent_keys = []
 
1123
            for key in maybe_file_parent_keys:
 
1124
                if key in heads:
 
1125
                    file_parent_keys.append(key)
 
1126
 
 
1127
            text = self.get_file_text(path)
 
1128
            this_key = (path, default_revision)
 
1129
            annotator.add_special_text(this_key, file_parent_keys, text)
 
1130
            annotations = [(key[-1], line)
 
1131
                           for key, line in annotator.annotate_flat(this_key)]
 
1132
            return annotations
 
1133
 
 
1134
    def _rename_one(self, from_rel, to_rel):
 
1135
        os.rename(self.abspath(from_rel), self.abspath(to_rel))
 
1136
 
 
1137
    def _build_checkout_with_index(self):
 
1138
        build_index_from_tree(
 
1139
            self.user_transport.local_abspath('.'),
 
1140
            self.control_transport.local_abspath("index"),
 
1141
            self.store,
 
1142
            None if self.branch.head is None else self.store[self.branch.head].tree)
 
1143
 
 
1144
    def reset_state(self, revision_ids=None):
 
1145
        """Reset the state of the working tree.
 
1146
 
 
1147
        This does a hard-reset to a last-known-good state. This is a way to
 
1148
        fix if something got corrupted (like the .git/index file)
 
1149
        """
 
1150
        with self.lock_tree_write():
 
1151
            if revision_ids is not None:
 
1152
                self.set_parent_ids(revision_ids)
 
1153
            self.index.clear()
 
1154
            self._index_dirty = True
 
1155
            if self.branch.head is not None:
 
1156
                for entry in self.store.iter_tree_contents(self.store[self.branch.head].tree):
 
1157
                    if not validate_path(entry.path):
 
1158
                        continue
 
1159
 
 
1160
                    if S_ISGITLINK(entry.mode):
 
1161
                        pass # TODO(jelmer): record and return submodule paths
 
1162
                    else:
 
1163
                        # Let's at least try to use the working tree file:
 
1164
                        try:
 
1165
                            st = self._lstat(self.abspath(entry.path.decode('utf-8')))
 
1166
                        except OSError:
 
1167
                            # But if it doesn't exist, we'll make something up.
 
1168
                            obj = self.store[entry.sha]
 
1169
                            st = os.stat_result((entry.mode, 0, 0, 0,
 
1170
                                  0, 0, len(obj.as_raw_string()), 0,
 
1171
                                  0, 0))
 
1172
                    (index, subpath) = self._lookup_index(entry.path)
 
1173
                    index[subpath] = index_entry_from_stat(st, entry.sha, 0)
 
1174
 
 
1175
    def pull(self, source, overwrite=False, stop_revision=None,
 
1176
             change_reporter=None, possible_transports=None, local=False,
 
1177
             show_base=False):
 
1178
        with self.lock_write(), source.lock_read():
 
1179
            old_revision = self.branch.last_revision()
 
1180
            basis_tree = self.basis_tree()
 
1181
            count = self.branch.pull(source, overwrite, stop_revision,
 
1182
                                     possible_transports=possible_transports,
 
1183
                                     local=local)
 
1184
            new_revision = self.branch.last_revision()
 
1185
            if new_revision != old_revision:
 
1186
                with basis_tree.lock_read():
 
1187
                    new_basis_tree = self.branch.basis_tree()
 
1188
                    merge.merge_inner(
 
1189
                                self.branch,
 
1190
                                new_basis_tree,
 
1191
                                basis_tree,
 
1192
                                this_tree=self,
 
1193
                                change_reporter=change_reporter,
 
1194
                                show_base=show_base)
 
1195
            return count
 
1196
 
 
1197
    def add_reference(self, sub_tree):
 
1198
        """Add a TreeReference to the tree, pointing at sub_tree.
 
1199
 
 
1200
        :param sub_tree: subtree to add.
 
1201
        """
 
1202
        with self.lock_tree_write():
 
1203
            try:
 
1204
                sub_tree_path = self.relpath(sub_tree.basedir)
 
1205
            except errors.PathNotChild:
 
1206
                raise BadReferenceTarget(
 
1207
                        self, sub_tree, 'Target not inside tree.')
 
1208
 
 
1209
            self._add([sub_tree_path], [None], ['tree-reference'])
 
1210
 
 
1211
    def _read_submodule_head(self, path):
 
1212
        return read_submodule_head(self.abspath(path))
 
1213
 
 
1214
    def get_reference_revision(self, path, file_id=None):
 
1215
        hexsha = self._read_submodule_head(path)
 
1216
        if hexsha is None:
 
1217
            return _mod_revision.NULL_REVISION
 
1218
        return self.branch.lookup_foreign_revision_id(hexsha)
 
1219
 
 
1220
    def get_nested_tree(self, path, file_id=None):
 
1221
        return workingtree.WorkingTree.open(self.abspath(path))
 
1222
 
 
1223
    def _directory_is_tree_reference(self, relpath):
 
1224
        # as a special case, if a directory contains control files then
 
1225
        # it's a tree reference, except that the root of the tree is not
 
1226
        return relpath and osutils.lexists(self.abspath(relpath) + u"/.git")
 
1227
 
 
1228
    def extract(self, sub_path, file_id=None, format=None):
 
1229
        """Extract a subtree from this tree.
 
1230
 
 
1231
        A new branch will be created, relative to the path for this tree.
 
1232
        """
 
1233
        def mkdirs(path):
 
1234
            segments = osutils.splitpath(path)
 
1235
            transport = self.branch.controldir.root_transport
 
1236
            for name in segments:
 
1237
                transport = transport.clone(name)
 
1238
                transport.ensure_base()
 
1239
            return transport
 
1240
 
 
1241
        with self.lock_tree_write():
 
1242
            self.flush()
 
1243
            branch_transport = mkdirs(sub_path)
 
1244
            if format is None:
 
1245
                format = self.controldir.cloning_metadir()
 
1246
            branch_transport.ensure_base()
 
1247
            branch_bzrdir = format.initialize_on_transport(branch_transport)
 
1248
            try:
 
1249
                repo = branch_bzrdir.find_repository()
 
1250
            except errors.NoRepositoryPresent:
 
1251
                repo = branch_bzrdir.create_repository()
 
1252
            if not repo.supports_rich_root():
 
1253
                raise errors.RootNotRich()
 
1254
            new_branch = branch_bzrdir.create_branch()
 
1255
            new_branch.pull(self.branch)
 
1256
            for parent_id in self.get_parent_ids():
 
1257
                new_branch.fetch(self.branch, parent_id)
 
1258
            tree_transport = self.controldir.root_transport.clone(sub_path)
 
1259
            if tree_transport.base != branch_transport.base:
 
1260
                tree_bzrdir = format.initialize_on_transport(tree_transport)
 
1261
                tree_bzrdir.set_branch_reference(new_branch)
 
1262
            else:
 
1263
                tree_bzrdir = branch_bzrdir
 
1264
            wt = tree_bzrdir.create_workingtree(_mod_revision.NULL_REVISION)
 
1265
            wt.set_parent_ids(self.get_parent_ids())
 
1266
            return wt
 
1267
 
 
1268
    def _get_check_refs(self):
 
1269
        """Return the references needed to perform a check of this tree.
 
1270
 
 
1271
        The default implementation returns no refs, and is only suitable for
 
1272
        trees that have no local caching and can commit on ghosts at any time.
 
1273
 
 
1274
        :seealso: breezy.check for details about check_refs.
 
1275
        """
 
1276
        return []
 
1277
 
 
1278
    def copy_content_into(self, tree, revision_id=None):
 
1279
        """Copy the current content and user files of this tree into tree."""
 
1280
        with self.lock_read():
 
1281
            if revision_id is None:
 
1282
                merge.transform_tree(tree, self)
 
1283
            else:
 
1284
                # TODO now merge from tree.last_revision to revision (to
 
1285
                # preserve user local changes)
 
1286
                try:
 
1287
                    other_tree = self.revision_tree(revision_id)
 
1288
                except errors.NoSuchRevision:
 
1289
                    other_tree = self.branch.repository.revision_tree(
 
1290
                            revision_id)
 
1291
 
 
1292
                merge.transform_tree(tree, other_tree)
 
1293
                if revision_id == _mod_revision.NULL_REVISION:
 
1294
                    new_parents = []
 
1295
                else:
 
1296
                    new_parents = [revision_id]
 
1297
                tree.set_parent_ids(new_parents)
 
1298
 
 
1299
 
 
1300
class GitWorkingTreeFormat(workingtree.WorkingTreeFormat):
 
1301
 
 
1302
    _tree_class = GitWorkingTree
 
1303
 
 
1304
    supports_versioned_directories = False
 
1305
 
 
1306
    supports_setting_file_ids = False
 
1307
 
 
1308
    supports_store_uncommitted = False
 
1309
 
 
1310
    supports_leftmost_parent_id_as_ghost = False
 
1311
 
 
1312
    supports_righthand_parent_id_as_ghost = False
 
1313
 
 
1314
    requires_normalized_unicode_filenames = True
 
1315
 
 
1316
    supports_merge_modified = False
 
1317
 
 
1318
    @property
 
1319
    def _matchingcontroldir(self):
 
1320
        from .dir import LocalGitControlDirFormat
 
1321
        return LocalGitControlDirFormat()
 
1322
 
 
1323
    def get_format_description(self):
 
1324
        return "Git Working Tree"
 
1325
 
 
1326
    def initialize(self, a_controldir, revision_id=None, from_branch=None,
 
1327
                   accelerator_tree=None, hardlink=False):
 
1328
        """See WorkingTreeFormat.initialize()."""
 
1329
        if not isinstance(a_controldir, LocalGitDir):
 
1330
            raise errors.IncompatibleFormat(self, a_controldir)
 
1331
        branch = a_controldir.open_branch(nascent_ok=True)
 
1332
        if revision_id is not None:
 
1333
            branch.set_last_revision(revision_id)
 
1334
        wt = GitWorkingTree(
 
1335
                a_controldir, a_controldir.open_repository(), branch)
 
1336
        for hook in MutableTree.hooks['post_build_tree']:
 
1337
            hook(wt)
 
1338
        return wt