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Viewing changes to breezy/git/workingtree.py

  • Committer: Jelmer Vernooij
  • Date: 2017-05-21 12:41:27 UTC
  • mto: This revision was merged to the branch mainline in revision 6623.
  • Revision ID: jelmer@jelmer.uk-20170521124127-iv8etg0vwymyai6y
s/bzr/brz/ in apport config.

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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
 
import itertools
21
 
from collections import defaultdict
22
 
import errno
23
 
from dulwich.ignore import (
24
 
    IgnoreFilterManager,
25
 
    )
26
 
from dulwich.config import ConfigFile as GitConfigFile
27
 
from dulwich.file import GitFile, FileLocked
28
 
from dulwich.index import (
29
 
    Index,
30
 
    SHA1Writer,
31
 
    build_index_from_tree,
32
 
    index_entry_from_path,
33
 
    index_entry_from_stat,
34
 
    FLAG_STAGEMASK,
35
 
    read_submodule_head,
36
 
    validate_path,
37
 
    write_index_dict,
38
 
    )
39
 
from dulwich.object_store import (
40
 
    tree_lookup_path,
41
 
    )
42
 
from dulwich.objects import (
43
 
    S_ISGITLINK,
44
 
    )
45
 
import os
46
 
import posixpath
47
 
import stat
48
 
import sys
49
 
 
50
 
from .. import (
51
 
    branch as _mod_branch,
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
 
    urlutils,
65
 
    workingtree,
66
 
    )
67
 
from ..decorators import (
68
 
    only_raises,
69
 
    )
70
 
from ..mutabletree import (
71
 
    BadReferenceTarget,
72
 
    MutableTree,
73
 
    )
74
 
 
75
 
 
76
 
from .dir import (
77
 
    LocalGitDir,
78
 
    )
79
 
from .tree import (
80
 
    MutableGitIndexTree,
81
 
    )
82
 
from .mapping import (
83
 
    mode_kind,
84
 
    )
85
 
 
86
 
 
87
 
class GitWorkingTree(MutableGitIndexTree, workingtree.WorkingTree):
88
 
    """A Git working tree."""
89
 
 
90
 
    def __init__(self, controldir, repo, branch):
91
 
        MutableGitIndexTree.__init__(self)
92
 
        basedir = controldir.root_transport.local_abspath('.')
93
 
        self.basedir = osutils.realpath(basedir)
94
 
        self.controldir = controldir
95
 
        self.repository = repo
96
 
        self.store = self.repository._git.object_store
97
 
        self.mapping = self.repository.get_mapping()
98
 
        self._branch = branch
99
 
        self._transport = self.repository._git._controltransport
100
 
        self._format = GitWorkingTreeFormat()
101
 
        self.index = None
102
 
        self._index_file = None
103
 
        self.views = self._make_views()
104
 
        self._rules_searcher = None
105
 
        self._detect_case_handling()
106
 
        self._reset_data()
107
 
 
108
 
    def supports_tree_reference(self):
109
 
        return True
110
 
 
111
 
    def supports_rename_tracking(self):
112
 
        return False
113
 
 
114
 
    def _read_index(self):
115
 
        self.index = Index(self.control_transport.local_abspath('index'))
116
 
        self._index_dirty = False
117
 
 
118
 
    def _get_submodule_index(self, relpath):
119
 
        if not isinstance(relpath, bytes):
120
 
            raise TypeError(relpath)
121
 
        try:
122
 
            info = self._submodule_info()[relpath]
123
 
        except KeyError:
124
 
            index_path = os.path.join(self.basedir, relpath.decode('utf-8'), '.git', 'index')
125
 
        else:
126
 
            index_path = self.control_transport.local_abspath(
127
 
                posixpath.join('modules', info[1], 'index'))
128
 
        return Index(index_path)
129
 
 
130
 
    def lock_read(self):
131
 
        """Lock the repository for read operations.
132
 
 
133
 
        :return: A breezy.lock.LogicalLockResult.
134
 
        """
135
 
        if not self._lock_mode:
136
 
            self._lock_mode = 'r'
137
 
            self._lock_count = 1
138
 
            self._read_index()
139
 
        else:
140
 
            self._lock_count += 1
141
 
        self.branch.lock_read()
142
 
        return lock.LogicalLockResult(self.unlock)
143
 
 
144
 
    def _lock_write_tree(self):
145
 
        if not self._lock_mode:
146
 
            self._lock_mode = 'w'
147
 
            self._lock_count = 1
148
 
            try:
149
 
                self._index_file = GitFile(
150
 
                    self.control_transport.local_abspath('index'), 'wb')
151
 
            except FileLocked:
152
 
                raise errors.LockContention('index')
153
 
            self._read_index()
154
 
        elif self._lock_mode == 'r':
155
 
            raise errors.ReadOnlyError(self)
156
 
        else:
157
 
            self._lock_count += 1
158
 
 
159
 
    def lock_tree_write(self):
160
 
        self.branch.lock_read()
161
 
        try:
162
 
            self._lock_write_tree()
163
 
            return lock.LogicalLockResult(self.unlock)
164
 
        except BaseException:
165
 
            self.branch.unlock()
166
 
            raise
167
 
 
168
 
    def lock_write(self, token=None):
169
 
        self.branch.lock_write()
170
 
        try:
171
 
            self._lock_write_tree()
172
 
            return lock.LogicalLockResult(self.unlock)
173
 
        except BaseException:
174
 
            self.branch.unlock()
175
 
            raise
176
 
 
177
 
    def is_locked(self):
178
 
        return self._lock_count >= 1
179
 
 
180
 
    def get_physical_lock_status(self):
181
 
        return False
182
 
 
183
 
    def break_lock(self):
184
 
        try:
185
 
            self.control_transport.delete('index.lock')
186
 
        except errors.NoSuchFile:
187
 
            pass
188
 
        self.branch.break_lock()
189
 
 
190
 
    @only_raises(errors.LockNotHeld, errors.LockBroken)
191
 
    def unlock(self):
192
 
        if not self._lock_count:
193
 
            return lock.cant_unlock_not_held(self)
194
 
        try:
195
 
            self._cleanup()
196
 
            self._lock_count -= 1
197
 
            if self._lock_count > 0:
198
 
                return
199
 
            if self._index_file is not None:
200
 
                if self._index_dirty:
201
 
                    self._flush(self._index_file)
202
 
                    self._index_file.close()
203
 
                else:
204
 
                    # Something else already triggered a write of the index
205
 
                    # file by calling .flush()
206
 
                    self._index_file.abort()
207
 
                self._index_file = None
208
 
            self._lock_mode = None
209
 
            self.index = None
210
 
        finally:
211
 
            self.branch.unlock()
212
 
 
213
 
    def _cleanup(self):
214
 
        pass
215
 
 
216
 
    def _detect_case_handling(self):
217
 
        try:
218
 
            self._transport.stat(".git/cOnFiG")
219
 
        except errors.NoSuchFile:
220
 
            self.case_sensitive = True
221
 
        else:
222
 
            self.case_sensitive = False
223
 
 
224
 
    def get_transform(self, pb=None):
225
 
        from ..transform import TreeTransform
226
 
        return TreeTransform(self, pb=pb)
227
 
 
228
 
    def merge_modified(self):
229
 
        return {}
230
 
 
231
 
    def set_merge_modified(self, modified_hashes):
232
 
        raise errors.UnsupportedOperation(self.set_merge_modified, self)
233
 
 
234
 
    def set_parent_trees(self, parents_list, allow_leftmost_as_ghost=False):
235
 
        self.set_parent_ids([p for p, t in parents_list])
236
 
 
237
 
    def _set_merges_from_parent_ids(self, rhs_parent_ids):
238
 
        try:
239
 
            merges = [self.branch.lookup_bzr_revision_id(
240
 
                revid)[0] for revid in rhs_parent_ids]
241
 
        except errors.NoSuchRevision as e:
242
 
            raise errors.GhostRevisionUnusableHere(e.revision)
243
 
        if merges:
244
 
            self.control_transport.put_bytes(
245
 
                'MERGE_HEAD', b'\n'.join(merges),
246
 
                mode=self.controldir._get_file_mode())
247
 
        else:
248
 
            try:
249
 
                self.control_transport.delete('MERGE_HEAD')
250
 
            except errors.NoSuchFile:
251
 
                pass
252
 
 
253
 
    def set_parent_ids(self, revision_ids, allow_leftmost_as_ghost=False):
254
 
        """Set the parent ids to revision_ids.
255
 
 
256
 
        See also set_parent_trees. This api will try to retrieve the tree data
257
 
        for each element of revision_ids from the trees repository. If you have
258
 
        tree data already available, it is more efficient to use
259
 
        set_parent_trees rather than set_parent_ids. set_parent_ids is however
260
 
        an easier API to use.
261
 
 
262
 
        :param revision_ids: The revision_ids to set as the parent ids of this
263
 
            working tree. Any of these may be ghosts.
264
 
        """
265
 
        with self.lock_tree_write():
266
 
            self._check_parents_for_ghosts(
267
 
                revision_ids, allow_leftmost_as_ghost=allow_leftmost_as_ghost)
268
 
            for revision_id in revision_ids:
269
 
                _mod_revision.check_not_reserved_id(revision_id)
270
 
 
271
 
            revision_ids = self._filter_parent_ids_by_ancestry(revision_ids)
272
 
 
273
 
            if len(revision_ids) > 0:
274
 
                self.set_last_revision(revision_ids[0])
275
 
            else:
276
 
                self.set_last_revision(_mod_revision.NULL_REVISION)
277
 
 
278
 
            self._set_merges_from_parent_ids(revision_ids[1:])
279
 
 
280
 
    def get_parent_ids(self):
281
 
        """See Tree.get_parent_ids.
282
 
 
283
 
        This implementation reads the pending merges list and last_revision
284
 
        value and uses that to decide what the parents list should be.
285
 
        """
286
 
        last_rev = _mod_revision.ensure_null(self._last_revision())
287
 
        if _mod_revision.NULL_REVISION == last_rev:
288
 
            parents = []
289
 
        else:
290
 
            parents = [last_rev]
291
 
        try:
292
 
            merges_bytes = self.control_transport.get_bytes('MERGE_HEAD')
293
 
        except errors.NoSuchFile:
294
 
            pass
295
 
        else:
296
 
            for l in osutils.split_lines(merges_bytes):
297
 
                revision_id = l.rstrip(b'\n')
298
 
                parents.append(
299
 
                    self.branch.lookup_foreign_revision_id(revision_id))
300
 
        return parents
301
 
 
302
 
    def check_state(self):
303
 
        """Check that the working state is/isn't valid."""
304
 
        pass
305
 
 
306
 
    def remove(self, files, verbose=False, to_file=None, keep_files=True,
307
 
               force=False):
308
 
        """Remove nominated files from the working tree metadata.
309
 
 
310
 
        :param files: File paths relative to the basedir.
311
 
        :param keep_files: If true, the files will also be kept.
312
 
        :param force: Delete files and directories, even if they are changed
313
 
            and even if the directories are not empty.
314
 
        """
315
 
        if not isinstance(files, list):
316
 
            files = [files]
317
 
 
318
 
        if to_file is None:
319
 
            to_file = sys.stdout
320
 
 
321
 
        def backup(file_to_backup):
322
 
            abs_path = self.abspath(file_to_backup)
323
 
            backup_name = self.controldir._available_backup_name(
324
 
                file_to_backup)
325
 
            osutils.rename(abs_path, self.abspath(backup_name))
326
 
            return "removed %s (but kept a copy: %s)" % (
327
 
                file_to_backup, backup_name)
328
 
 
329
 
        # Sort needed to first handle directory content before the directory
330
 
        files_to_backup = []
331
 
 
332
 
        all_files = set()
333
 
 
334
 
        def recurse_directory_to_add_files(directory):
335
 
            # Recurse directory and add all files
336
 
            # so we can check if they have changed.
337
 
            for parent_info, file_infos in self.walkdirs(directory):
338
 
                for relpath, basename, kind, lstat, fileid, kind in file_infos:
339
 
                    # Is it versioned or ignored?
340
 
                    if self.is_versioned(relpath):
341
 
                        # Add nested content for deletion.
342
 
                        all_files.add(relpath)
343
 
                    else:
344
 
                        # Files which are not versioned
345
 
                        # should be treated as unknown.
346
 
                        files_to_backup.append(relpath)
347
 
 
348
 
        with self.lock_tree_write():
349
 
            for filepath in files:
350
 
                # Get file name into canonical form.
351
 
                abspath = self.abspath(filepath)
352
 
                filepath = self.relpath(abspath)
353
 
 
354
 
                if filepath:
355
 
                    all_files.add(filepath)
356
 
                    recurse_directory_to_add_files(filepath)
357
 
 
358
 
            files = list(all_files)
359
 
 
360
 
            if len(files) == 0:
361
 
                return  # nothing to do
362
 
 
363
 
            # Sort needed to first handle directory content before the
364
 
            # directory
365
 
            files.sort(reverse=True)
366
 
 
367
 
            # Bail out if we are going to delete files we shouldn't
368
 
            if not keep_files and not force:
369
 
                for change in self.iter_changes(
370
 
                        self.basis_tree(), include_unchanged=True,
371
 
                        require_versioned=False, want_unversioned=True,
372
 
                        specific_files=files):
373
 
                    if change.versioned[0] is False:
374
 
                        # The record is unknown or newly added
375
 
                        files_to_backup.append(change.path[1])
376
 
                        files_to_backup.extend(
377
 
                            osutils.parent_directories(change.path[1]))
378
 
                    elif (change.changed_content and (change.kind[1] is not None)
379
 
                            and osutils.is_inside_any(files, change.path[1])):
380
 
                        # Versioned and changed, but not deleted, and still
381
 
                        # in one of the dirs to be deleted.
382
 
                        files_to_backup.append(change.path[1])
383
 
                        files_to_backup.extend(
384
 
                            osutils.parent_directories(change.path[1]))
385
 
 
386
 
            for f in files:
387
 
                if f == '':
388
 
                    continue
389
 
 
390
 
                try:
391
 
                    kind = self.kind(f)
392
 
                except errors.NoSuchFile:
393
 
                    kind = None
394
 
 
395
 
                abs_path = self.abspath(f)
396
 
                if verbose:
397
 
                    # having removed it, it must be either ignored or unknown
398
 
                    if self.is_ignored(f):
399
 
                        new_status = 'I'
400
 
                    else:
401
 
                        new_status = '?'
402
 
                    kind_ch = osutils.kind_marker(kind)
403
 
                    to_file.write(new_status + '       ' + f + kind_ch + '\n')
404
 
                if kind is None:
405
 
                    message = "%s does not exist" % (f, )
406
 
                else:
407
 
                    if not keep_files:
408
 
                        if f in files_to_backup and not force:
409
 
                            message = backup(f)
410
 
                        else:
411
 
                            if kind == 'directory':
412
 
                                osutils.rmtree(abs_path)
413
 
                            else:
414
 
                                osutils.delete_any(abs_path)
415
 
                            message = "deleted %s" % (f,)
416
 
                    else:
417
 
                        message = "removed %s" % (f,)
418
 
                self._unversion_path(f)
419
 
 
420
 
                # print only one message (if any) per file.
421
 
                if message is not None:
422
 
                    trace.note(message)
423
 
            self._versioned_dirs = None
424
 
 
425
 
    def smart_add(self, file_list, recurse=True, action=None, save=True):
426
 
        if not file_list:
427
 
            file_list = [u'.']
428
 
 
429
 
        # expand any symlinks in the directory part, while leaving the
430
 
        # filename alone
431
 
        # only expanding if symlinks are supported avoids windows path bugs
432
 
        if self.supports_symlinks():
433
 
            file_list = list(map(osutils.normalizepath, file_list))
434
 
 
435
 
        conflicts_related = set()
436
 
        for c in self.conflicts():
437
 
            conflicts_related.update(c.associated_filenames())
438
 
 
439
 
        added = []
440
 
        ignored = {}
441
 
        user_dirs = []
442
 
 
443
 
        def call_action(filepath, kind):
444
 
            if filepath == '':
445
 
                return
446
 
            if action is not None:
447
 
                parent_path = posixpath.dirname(filepath)
448
 
                parent_id = self.path2id(parent_path)
449
 
                parent_ie = self._get_dir_ie(parent_path, parent_id)
450
 
                file_id = action(self, parent_ie, filepath, kind)
451
 
                if file_id is not None:
452
 
                    raise workingtree.SettingFileIdUnsupported()
453
 
 
454
 
        with self.lock_tree_write():
455
 
            for filepath in osutils.canonical_relpaths(
456
 
                    self.basedir, file_list):
457
 
                filepath, can_access = osutils.normalized_filename(filepath)
458
 
                if not can_access:
459
 
                    raise errors.InvalidNormalization(filepath)
460
 
 
461
 
                abspath = self.abspath(filepath)
462
 
                kind = osutils.file_kind(abspath)
463
 
                if kind in ("file", "symlink"):
464
 
                    (index, subpath) = self._lookup_index(
465
 
                        filepath.encode('utf-8'))
466
 
                    if subpath in index:
467
 
                        # Already present
468
 
                        continue
469
 
                    call_action(filepath, kind)
470
 
                    if save:
471
 
                        self._index_add_entry(filepath, kind)
472
 
                    added.append(filepath)
473
 
                elif kind == "directory":
474
 
                    (index, subpath) = self._lookup_index(
475
 
                        filepath.encode('utf-8'))
476
 
                    if subpath not in index:
477
 
                        call_action(filepath, kind)
478
 
                    if recurse:
479
 
                        user_dirs.append(filepath)
480
 
                else:
481
 
                    raise errors.BadFileKindError(filename=abspath, kind=kind)
482
 
            for user_dir in user_dirs:
483
 
                abs_user_dir = self.abspath(user_dir)
484
 
                if user_dir != '':
485
 
                    try:
486
 
                        transport = _mod_transport.get_transport_from_path(
487
 
                            abs_user_dir)
488
 
                        _mod_controldir.ControlDirFormat.find_format(transport)
489
 
                        subtree = True
490
 
                    except errors.NotBranchError:
491
 
                        subtree = False
492
 
                    except errors.UnsupportedFormatError:
493
 
                        subtree = False
494
 
                else:
495
 
                    subtree = False
496
 
                if subtree:
497
 
                    trace.warning('skipping nested tree %r', abs_user_dir)
498
 
                    continue
499
 
 
500
 
                for name in os.listdir(abs_user_dir):
501
 
                    subp = os.path.join(user_dir, name)
502
 
                    if (self.is_control_filename(subp) or
503
 
                            self.mapping.is_special_file(subp)):
504
 
                        continue
505
 
                    ignore_glob = self.is_ignored(subp)
506
 
                    if ignore_glob is not None:
507
 
                        ignored.setdefault(ignore_glob, []).append(subp)
508
 
                        continue
509
 
                    abspath = self.abspath(subp)
510
 
                    kind = osutils.file_kind(abspath)
511
 
                    if kind == "directory":
512
 
                        user_dirs.append(subp)
513
 
                    else:
514
 
                        (index, subpath) = self._lookup_index(
515
 
                            subp.encode('utf-8'))
516
 
                        if subpath in index:
517
 
                            # Already present
518
 
                            continue
519
 
                        if subp in conflicts_related:
520
 
                            continue
521
 
                        call_action(subp, kind)
522
 
                        if save:
523
 
                            self._index_add_entry(subp, kind)
524
 
                        added.append(subp)
525
 
            return added, ignored
526
 
 
527
 
    def has_filename(self, filename):
528
 
        return osutils.lexists(self.abspath(filename))
529
 
 
530
 
    def _iter_files_recursive(self, from_dir=None, include_dirs=False,
531
 
                              recurse_nested=False):
532
 
        if from_dir is None:
533
 
            from_dir = u""
534
 
        if not isinstance(from_dir, str):
535
 
            raise TypeError(from_dir)
536
 
        encoded_from_dir = self.abspath(from_dir).encode(osutils._fs_enc)
537
 
        for (dirpath, dirnames, filenames) in os.walk(encoded_from_dir):
538
 
            dir_relpath = dirpath[len(self.basedir):].strip(b"/")
539
 
            if self.controldir.is_control_filename(
540
 
                    dir_relpath.decode(osutils._fs_enc)):
541
 
                continue
542
 
            for name in list(dirnames):
543
 
                if self.controldir.is_control_filename(
544
 
                        name.decode(osutils._fs_enc)):
545
 
                    dirnames.remove(name)
546
 
                    continue
547
 
                relpath = os.path.join(dir_relpath, name)
548
 
                if not recurse_nested and self._directory_is_tree_reference(relpath.decode(osutils._fs_enc)):
549
 
                    dirnames.remove(name)
550
 
                if include_dirs:
551
 
                    try:
552
 
                        yield relpath.decode(osutils._fs_enc)
553
 
                    except UnicodeDecodeError:
554
 
                        raise errors.BadFilenameEncoding(
555
 
                            relpath, osutils._fs_enc)
556
 
                    if not self.is_versioned(relpath.decode(osutils._fs_enc)):
557
 
                        dirnames.remove(name)
558
 
            for name in filenames:
559
 
                if self.mapping.is_special_file(name):
560
 
                    continue
561
 
                if self.controldir.is_control_filename(
562
 
                        name.decode(osutils._fs_enc, 'replace')):
563
 
                    continue
564
 
                yp = os.path.join(dir_relpath, name)
565
 
                try:
566
 
                    yield yp.decode(osutils._fs_enc)
567
 
                except UnicodeDecodeError:
568
 
                    raise errors.BadFilenameEncoding(
569
 
                        yp, osutils._fs_enc)
570
 
 
571
 
    def extras(self):
572
 
        """Yield all unversioned files in this WorkingTree.
573
 
        """
574
 
        with self.lock_read():
575
 
            index_paths = set(
576
 
                [p.decode('utf-8') for p, i in self._recurse_index_entries()])
577
 
            all_paths = set(self._iter_files_recursive(include_dirs=False))
578
 
            return iter(all_paths - index_paths)
579
 
 
580
 
    def _gather_kinds(self, files, kinds):
581
 
        """See MutableTree._gather_kinds."""
582
 
        with self.lock_tree_write():
583
 
            for pos, f in enumerate(files):
584
 
                if kinds[pos] is None:
585
 
                    fullpath = osutils.normpath(self.abspath(f))
586
 
                    try:
587
 
                        kind = osutils.file_kind(fullpath)
588
 
                    except OSError as e:
589
 
                        if e.errno == errno.ENOENT:
590
 
                            raise errors.NoSuchFile(fullpath)
591
 
                    if f != '' and self._directory_is_tree_reference(f):
592
 
                        kind = 'tree-reference'
593
 
                    kinds[pos] = kind
594
 
 
595
 
    def flush(self):
596
 
        if self._lock_mode != 'w':
597
 
            raise errors.NotWriteLocked(self)
598
 
        # TODO(jelmer): This shouldn't be writing in-place, but index.lock is
599
 
        # already in use and GitFile doesn't allow overriding the lock file
600
 
        # name :(
601
 
        f = open(self.control_transport.local_abspath('index'), 'wb')
602
 
        # Note that _flush will close the file
603
 
        self._flush(f)
604
 
 
605
 
    def _flush(self, f):
606
 
        try:
607
 
            shaf = SHA1Writer(f)
608
 
            write_index_dict(shaf, self.index)
609
 
            shaf.close()
610
 
        except BaseException:
611
 
            f.abort()
612
 
            raise
613
 
        self._index_dirty = False
614
 
 
615
 
    def get_file_mtime(self, path):
616
 
        """See Tree.get_file_mtime."""
617
 
        try:
618
 
            return self._lstat(path).st_mtime
619
 
        except OSError as e:
620
 
            if e.errno == errno.ENOENT:
621
 
                raise errors.NoSuchFile(path)
622
 
            raise
623
 
 
624
 
    def is_ignored(self, filename):
625
 
        r"""Check whether the filename matches an ignore pattern.
626
 
 
627
 
        If the file is ignored, returns the pattern which caused it to
628
 
        be ignored, otherwise None.  So this can simply be used as a
629
 
        boolean if desired."""
630
 
        if getattr(self, '_global_ignoreglobster', None) is None:
631
 
            ignore_globs = set()
632
 
            ignore_globs.update(ignores.get_runtime_ignores())
633
 
            ignore_globs.update(ignores.get_user_ignores())
634
 
            self._global_ignoreglobster = globbing.ExceptionGlobster(
635
 
                ignore_globs)
636
 
        match = self._global_ignoreglobster.match(filename)
637
 
        if match is not None:
638
 
            return match
639
 
        try:
640
 
            if self.kind(filename) == 'directory':
641
 
                filename += '/'
642
 
        except errors.NoSuchFile:
643
 
            pass
644
 
        filename = filename.lstrip('/')
645
 
        ignore_manager = self._get_ignore_manager()
646
 
        ps = list(ignore_manager.find_matching(filename))
647
 
        if not ps:
648
 
            return None
649
 
        if not ps[-1].is_exclude:
650
 
            return None
651
 
        return bytes(ps[-1])
652
 
 
653
 
    def _get_ignore_manager(self):
654
 
        ignoremanager = getattr(self, '_ignoremanager', None)
655
 
        if ignoremanager is not None:
656
 
            return ignoremanager
657
 
 
658
 
        ignore_manager = IgnoreFilterManager.from_repo(self.repository._git)
659
 
        self._ignoremanager = ignore_manager
660
 
        return ignore_manager
661
 
 
662
 
    def _flush_ignore_list_cache(self):
663
 
        self._ignoremanager = None
664
 
 
665
 
    def set_last_revision(self, revid):
666
 
        if _mod_revision.is_null(revid):
667
 
            self.branch.set_last_revision_info(0, revid)
668
 
            return False
669
 
        _mod_revision.check_not_reserved_id(revid)
670
 
        try:
671
 
            self.branch.generate_revision_history(revid)
672
 
        except errors.NoSuchRevision:
673
 
            raise errors.GhostRevisionUnusableHere(revid)
674
 
 
675
 
    def _reset_data(self):
676
 
        pass
677
 
 
678
 
    def get_file_verifier(self, path, stat_value=None):
679
 
        with self.lock_read():
680
 
            (index, subpath) = self._lookup_index(path.encode('utf-8'))
681
 
            try:
682
 
                return ("GIT", index[subpath].sha)
683
 
            except KeyError:
684
 
                if self._has_dir(path):
685
 
                    return ("GIT", None)
686
 
                raise errors.NoSuchFile(path)
687
 
 
688
 
    def get_file_sha1(self, path, stat_value=None):
689
 
        with self.lock_read():
690
 
            if not self.is_versioned(path):
691
 
                raise errors.NoSuchFile(path)
692
 
            abspath = self.abspath(path)
693
 
            try:
694
 
                return osutils.sha_file_by_name(abspath)
695
 
            except OSError as e:
696
 
                if e.errno in (errno.EISDIR, errno.ENOENT):
697
 
                    return None
698
 
                raise
699
 
 
700
 
    def revision_tree(self, revid):
701
 
        return self.repository.revision_tree(revid)
702
 
 
703
 
    def _is_executable_from_path_and_stat_from_stat(self, path, stat_result):
704
 
        mode = stat_result.st_mode
705
 
        return bool(stat.S_ISREG(mode) and stat.S_IEXEC & mode)
706
 
 
707
 
    def _is_executable_from_path_and_stat_from_basis(self, path, stat_result):
708
 
        return self.basis_tree().is_executable(path)
709
 
 
710
 
    def stored_kind(self, path):
711
 
        with self.lock_read():
712
 
            encoded_path = path.encode('utf-8')
713
 
            (index, subpath) = self._lookup_index(encoded_path)
714
 
            try:
715
 
                return mode_kind(index[subpath].mode)
716
 
            except KeyError:
717
 
                # Maybe it's a directory?
718
 
                if self._has_dir(encoded_path):
719
 
                    return "directory"
720
 
                raise errors.NoSuchFile(path)
721
 
 
722
 
    def _lstat(self, path):
723
 
        return os.lstat(self.abspath(path))
724
 
 
725
 
    def _live_entry(self, path):
726
 
        encoded_path = self.abspath(path.decode('utf-8')).encode(
727
 
            osutils._fs_enc)
728
 
        return index_entry_from_path(encoded_path)
729
 
 
730
 
    def is_executable(self, path):
731
 
        with self.lock_read():
732
 
            if self._supports_executable():
733
 
                mode = self._lstat(path).st_mode
734
 
            else:
735
 
                (index, subpath) = self._lookup_index(path.encode('utf-8'))
736
 
                try:
737
 
                    mode = index[subpath].mode
738
 
                except KeyError:
739
 
                    mode = 0
740
 
            return bool(stat.S_ISREG(mode) and stat.S_IEXEC & mode)
741
 
 
742
 
    def _is_executable_from_path_and_stat(self, path, stat_result):
743
 
        if self._supports_executable():
744
 
            return self._is_executable_from_path_and_stat_from_stat(path, stat_result)
745
 
        else:
746
 
            return self._is_executable_from_path_and_stat_from_basis(
747
 
                path, stat_result)
748
 
 
749
 
    def list_files(self, include_root=False, from_dir=None, recursive=True,
750
 
                   recurse_nested=False):
751
 
        if from_dir is None or from_dir == '.':
752
 
            from_dir = u""
753
 
        dir_ids = {}
754
 
        fk_entries = {'directory': tree.TreeDirectory,
755
 
                      'file': tree.TreeFile,
756
 
                      'symlink': tree.TreeLink,
757
 
                      'tree-reference': tree.TreeReference}
758
 
        with self.lock_read():
759
 
            root_ie = self._get_dir_ie(u"", None)
760
 
            if include_root and not from_dir:
761
 
                yield "", "V", root_ie.kind, root_ie
762
 
            dir_ids[u""] = root_ie.file_id
763
 
            if recursive:
764
 
                path_iterator = sorted(
765
 
                    self._iter_files_recursive(
766
 
                        from_dir, include_dirs=True,
767
 
                        recurse_nested=recurse_nested))
768
 
            else:
769
 
                encoded_from_dir = self.abspath(from_dir).encode(
770
 
                    osutils._fs_enc)
771
 
                path_iterator = sorted(
772
 
                    [os.path.join(from_dir, name.decode(osutils._fs_enc))
773
 
                     for name in os.listdir(encoded_from_dir)
774
 
                     if not self.controldir.is_control_filename(
775
 
                         name.decode(osutils._fs_enc)) and
776
 
                     not self.mapping.is_special_file(
777
 
                         name.decode(osutils._fs_enc))])
778
 
            for path in path_iterator:
779
 
                try:
780
 
                    encoded_path = path.encode("utf-8")
781
 
                except UnicodeEncodeError:
782
 
                    raise errors.BadFilenameEncoding(
783
 
                        path, osutils._fs_enc)
784
 
                (index, index_path) = self._lookup_index(encoded_path)
785
 
                try:
786
 
                    value = index[index_path]
787
 
                except KeyError:
788
 
                    value = None
789
 
                kind = self.kind(path)
790
 
                parent, name = posixpath.split(path)
791
 
                for dir_path, dir_ie in self._add_missing_parent_ids(
792
 
                        parent, dir_ids):
793
 
                    pass
794
 
                if kind == 'tree-reference' and recurse_nested:
795
 
                    ie = self._get_dir_ie(path, self.path2id(path))
796
 
                    yield (posixpath.relpath(path, from_dir), 'V', 'directory',
797
 
                           ie)
798
 
                    continue
799
 
                if kind == 'directory':
800
 
                    if path != from_dir:
801
 
                        if self._has_dir(encoded_path):
802
 
                            ie = self._get_dir_ie(path, self.path2id(path))
803
 
                            status = "V"
804
 
                        elif self.is_ignored(path):
805
 
                            status = "I"
806
 
                            ie = fk_entries[kind]()
807
 
                        else:
808
 
                            status = "?"
809
 
                            ie = fk_entries[kind]()
810
 
                        yield (posixpath.relpath(path, from_dir), status, kind,
811
 
                               ie)
812
 
                    continue
813
 
                if value is not None:
814
 
                    ie = self._get_file_ie(name, path, value, dir_ids[parent])
815
 
                    yield (posixpath.relpath(path, from_dir), "V", ie.kind, ie)
816
 
                else:
817
 
                    ie = fk_entries[kind]()
818
 
                    yield (posixpath.relpath(path, from_dir),
819
 
                           ("I" if self.is_ignored(path) else "?"), kind, ie)
820
 
 
821
 
    def all_file_ids(self):
822
 
        raise errors.UnsupportedOperation(self.all_file_ids, self)
823
 
 
824
 
    def all_versioned_paths(self):
825
 
        with self.lock_read():
826
 
            paths = {u""}
827
 
            for path in self.index:
828
 
                if self.mapping.is_special_file(path):
829
 
                    continue
830
 
                path = path.decode("utf-8")
831
 
                paths.add(path)
832
 
                while path != "":
833
 
                    path = posixpath.dirname(path).strip("/")
834
 
                    if path in paths:
835
 
                        break
836
 
                    paths.add(path)
837
 
            return paths
838
 
 
839
 
    def iter_child_entries(self, path):
840
 
        encoded_path = path.encode('utf-8')
841
 
        with self.lock_read():
842
 
            parent_id = self.path2id(path)
843
 
            found_any = False
844
 
            for item_path, value in self.index.iteritems():
845
 
                decoded_item_path = item_path.decode('utf-8')
846
 
                if self.mapping.is_special_file(item_path):
847
 
                    continue
848
 
                if not osutils.is_inside(path, decoded_item_path):
849
 
                    continue
850
 
                found_any = True
851
 
                subpath = posixpath.relpath(decoded_item_path, path)
852
 
                if '/' in subpath:
853
 
                    dirname = subpath.split('/', 1)[0]
854
 
                    file_ie = self._get_dir_ie(
855
 
                        posixpath.join(path, dirname), parent_id)
856
 
                else:
857
 
                    (unused_parent, name) = posixpath.split(decoded_item_path)
858
 
                    file_ie = self._get_file_ie(
859
 
                        name, decoded_item_path, value, parent_id)
860
 
                yield file_ie
861
 
            if not found_any and path != u'':
862
 
                raise errors.NoSuchFile(path)
863
 
 
864
 
    def conflicts(self):
865
 
        with self.lock_read():
866
 
            conflicts = _mod_conflicts.ConflictList()
867
 
            for item_path, value in self.index.iteritems():
868
 
                if value.flags & FLAG_STAGEMASK:
869
 
                    conflicts.append(_mod_conflicts.TextConflict(
870
 
                        item_path.decode('utf-8')))
871
 
            return conflicts
872
 
 
873
 
    def set_conflicts(self, conflicts):
874
 
        by_path = set()
875
 
        for conflict in conflicts:
876
 
            if conflict.typestring in ('text conflict', 'contents conflict'):
877
 
                by_path.add(conflict.path.encode('utf-8'))
878
 
            else:
879
 
                raise errors.UnsupportedOperation(self.set_conflicts, self)
880
 
        with self.lock_tree_write():
881
 
            for path in self.index:
882
 
                self._set_conflicted(path, path in by_path)
883
 
 
884
 
    def _set_conflicted(self, path, conflicted):
885
 
        trace.mutter('change conflict: %r -> %r', path, conflicted)
886
 
        value = self.index[path]
887
 
        self._index_dirty = True
888
 
        if conflicted:
889
 
            self.index[path] = (value[:9] + (value[9] | FLAG_STAGEMASK, ))
890
 
        else:
891
 
            self.index[path] = (value[:9] + (value[9] & ~ FLAG_STAGEMASK, ))
892
 
 
893
 
    def add_conflicts(self, new_conflicts):
894
 
        with self.lock_tree_write():
895
 
            for conflict in new_conflicts:
896
 
                if conflict.typestring in ('text conflict',
897
 
                                           'contents conflict'):
898
 
                    try:
899
 
                        self._set_conflicted(
900
 
                            conflict.path.encode('utf-8'), True)
901
 
                    except KeyError:
902
 
                        raise errors.UnsupportedOperation(
903
 
                            self.add_conflicts, self)
904
 
                else:
905
 
                    raise errors.UnsupportedOperation(self.add_conflicts, self)
906
 
 
907
 
    def walkdirs(self, prefix=""):
908
 
        """Walk the directories of this tree.
909
 
 
910
 
        returns a generator which yields items in the form:
911
 
                ((curren_directory_path, fileid),
912
 
                 [(file1_path, file1_name, file1_kind, (lstat), file1_id,
913
 
                   file1_kind), ... ])
914
 
 
915
 
        This API returns a generator, which is only valid during the current
916
 
        tree transaction - within a single lock_read or lock_write duration.
917
 
 
918
 
        If the tree is not locked, it may cause an error to be raised,
919
 
        depending on the tree implementation.
920
 
        """
921
 
        from bisect import bisect_left
922
 
        import operator
923
 
        disk_top = self.abspath(prefix)
924
 
        if disk_top.endswith('/'):
925
 
            disk_top = disk_top[:-1]
926
 
        top_strip_len = len(disk_top) + 1
927
 
        inventory_iterator = self._walkdirs(prefix)
928
 
        disk_iterator = osutils.walkdirs(disk_top, prefix)
929
 
        try:
930
 
            current_disk = next(disk_iterator)
931
 
            disk_finished = False
932
 
        except OSError as e:
933
 
            if not (e.errno == errno.ENOENT
934
 
                    or (sys.platform == 'win32' and e.errno == ERROR_PATH_NOT_FOUND)):
935
 
                raise
936
 
            current_disk = None
937
 
            disk_finished = True
938
 
        try:
939
 
            current_inv = next(inventory_iterator)
940
 
            inv_finished = False
941
 
        except StopIteration:
942
 
            current_inv = None
943
 
            inv_finished = True
944
 
        while not inv_finished or not disk_finished:
945
 
            if current_disk:
946
 
                ((cur_disk_dir_relpath, cur_disk_dir_path_from_top),
947
 
                    cur_disk_dir_content) = current_disk
948
 
            else:
949
 
                ((cur_disk_dir_relpath, cur_disk_dir_path_from_top),
950
 
                    cur_disk_dir_content) = ((None, None), None)
951
 
            if not disk_finished:
952
 
                # strip out .bzr dirs
953
 
                if (cur_disk_dir_path_from_top[top_strip_len:] == ''
954
 
                        and len(cur_disk_dir_content) > 0):
955
 
                    # osutils.walkdirs can be made nicer -
956
 
                    # yield the path-from-prefix rather than the pathjoined
957
 
                    # value.
958
 
                    bzrdir_loc = bisect_left(cur_disk_dir_content,
959
 
                                             ('.git', '.git'))
960
 
                    if (bzrdir_loc < len(cur_disk_dir_content) and
961
 
                        self.controldir.is_control_filename(
962
 
                            cur_disk_dir_content[bzrdir_loc][0])):
963
 
                        # we dont yield the contents of, or, .bzr itself.
964
 
                        del cur_disk_dir_content[bzrdir_loc]
965
 
            if inv_finished:
966
 
                # everything is unknown
967
 
                direction = 1
968
 
            elif disk_finished:
969
 
                # everything is missing
970
 
                direction = -1
971
 
            else:
972
 
                direction = ((current_inv[0][0] > cur_disk_dir_relpath)
973
 
                             - (current_inv[0][0] < cur_disk_dir_relpath))
974
 
            if direction > 0:
975
 
                # disk is before inventory - unknown
976
 
                dirblock = [(relpath, basename, kind, stat, None, None) for
977
 
                            relpath, basename, kind, stat, top_path in
978
 
                            cur_disk_dir_content]
979
 
                yield (cur_disk_dir_relpath, None), dirblock
980
 
                try:
981
 
                    current_disk = next(disk_iterator)
982
 
                except StopIteration:
983
 
                    disk_finished = True
984
 
            elif direction < 0:
985
 
                # inventory is before disk - missing.
986
 
                dirblock = [(relpath, basename, 'unknown', None, fileid, kind)
987
 
                            for relpath, basename, dkind, stat, fileid, kind in
988
 
                            current_inv[1]]
989
 
                yield (current_inv[0][0], current_inv[0][1]), dirblock
990
 
                try:
991
 
                    current_inv = next(inventory_iterator)
992
 
                except StopIteration:
993
 
                    inv_finished = True
994
 
            else:
995
 
                # versioned present directory
996
 
                # merge the inventory and disk data together
997
 
                dirblock = []
998
 
                for relpath, subiterator in itertools.groupby(sorted(
999
 
                        current_inv[1] + cur_disk_dir_content,
1000
 
                        key=operator.itemgetter(0)), operator.itemgetter(1)):
1001
 
                    path_elements = list(subiterator)
1002
 
                    if len(path_elements) == 2:
1003
 
                        inv_row, disk_row = path_elements
1004
 
                        # versioned, present file
1005
 
                        dirblock.append((inv_row[0],
1006
 
                                         inv_row[1], disk_row[2],
1007
 
                                         disk_row[3], inv_row[4],
1008
 
                                         inv_row[5]))
1009
 
                    elif len(path_elements[0]) == 5:
1010
 
                        # unknown disk file
1011
 
                        dirblock.append(
1012
 
                            (path_elements[0][0], path_elements[0][1],
1013
 
                                path_elements[0][2], path_elements[0][3],
1014
 
                                None, None))
1015
 
                    elif len(path_elements[0]) == 6:
1016
 
                        # versioned, absent file.
1017
 
                        dirblock.append(
1018
 
                            (path_elements[0][0], path_elements[0][1],
1019
 
                                'unknown', None, path_elements[0][4],
1020
 
                                path_elements[0][5]))
1021
 
                    else:
1022
 
                        raise NotImplementedError('unreachable code')
1023
 
                yield current_inv[0], dirblock
1024
 
                try:
1025
 
                    current_inv = next(inventory_iterator)
1026
 
                except StopIteration:
1027
 
                    inv_finished = True
1028
 
                try:
1029
 
                    current_disk = next(disk_iterator)
1030
 
                except StopIteration:
1031
 
                    disk_finished = True
1032
 
 
1033
 
    def _walkdirs(self, prefix=u""):
1034
 
        if prefix != u"":
1035
 
            prefix += u"/"
1036
 
        prefix = prefix.encode('utf-8')
1037
 
        per_dir = defaultdict(set)
1038
 
        if prefix == b"":
1039
 
            per_dir[(u'', self.path2id(''))] = set()
1040
 
 
1041
 
        def add_entry(path, kind):
1042
 
            if path == b'' or not path.startswith(prefix):
1043
 
                return
1044
 
            (dirname, child_name) = posixpath.split(path)
1045
 
            add_entry(dirname, 'directory')
1046
 
            dirname = dirname.decode("utf-8")
1047
 
            dir_file_id = self.path2id(dirname)
1048
 
            if not isinstance(value, tuple) or len(value) != 10:
1049
 
                raise ValueError(value)
1050
 
            per_dir[(dirname, dir_file_id)].add(
1051
 
                (path.decode("utf-8"), child_name.decode("utf-8"),
1052
 
                 kind, None,
1053
 
                 self.path2id(path.decode("utf-8")),
1054
 
                 kind))
1055
 
        with self.lock_read():
1056
 
            for path, value in self.index.iteritems():
1057
 
                if self.mapping.is_special_file(path):
1058
 
                    continue
1059
 
                if not path.startswith(prefix):
1060
 
                    continue
1061
 
                add_entry(path, mode_kind(value.mode))
1062
 
        return ((k, sorted(v)) for (k, v) in sorted(per_dir.items()))
1063
 
 
1064
 
    def get_shelf_manager(self):
1065
 
        raise workingtree.ShelvingUnsupported()
1066
 
 
1067
 
    def store_uncommitted(self):
1068
 
        raise errors.StoringUncommittedNotSupported(self)
1069
 
 
1070
 
    def apply_inventory_delta(self, changes):
1071
 
        for (old_path, new_path, file_id, ie) in changes:
1072
 
            if old_path is not None:
1073
 
                (index, old_subpath) = self._lookup_index(
1074
 
                    old_path.encode('utf-8'))
1075
 
                try:
1076
 
                    self._index_del_entry(index, old_subpath)
1077
 
                except KeyError:
1078
 
                    pass
1079
 
                else:
1080
 
                    self._versioned_dirs = None
1081
 
            if new_path is not None and ie.kind != 'directory':
1082
 
                if ie.kind == 'tree-reference':
1083
 
                    self._index_add_entry(
1084
 
                        new_path, ie.kind,
1085
 
                        reference_revision=ie.reference_revision)
1086
 
                else:
1087
 
                    self._index_add_entry(new_path, ie.kind)
1088
 
        self.flush()
1089
 
 
1090
 
    def annotate_iter(self, path,
1091
 
                      default_revision=_mod_revision.CURRENT_REVISION):
1092
 
        """See Tree.annotate_iter
1093
 
 
1094
 
        This implementation will use the basis tree implementation if possible.
1095
 
        Lines not in the basis are attributed to CURRENT_REVISION
1096
 
 
1097
 
        If there are pending merges, lines added by those merges will be
1098
 
        incorrectly attributed to CURRENT_REVISION (but after committing, the
1099
 
        attribution will be correct).
1100
 
        """
1101
 
        with self.lock_read():
1102
 
            maybe_file_parent_keys = []
1103
 
            for parent_id in self.get_parent_ids():
1104
 
                try:
1105
 
                    parent_tree = self.revision_tree(parent_id)
1106
 
                except errors.NoSuchRevisionInTree:
1107
 
                    parent_tree = self.branch.repository.revision_tree(
1108
 
                        parent_id)
1109
 
                with parent_tree.lock_read():
1110
 
                    # TODO(jelmer): Use rename/copy tracker to find path name
1111
 
                    # in parent
1112
 
                    parent_path = path
1113
 
                    try:
1114
 
                        kind = parent_tree.kind(parent_path)
1115
 
                    except errors.NoSuchFile:
1116
 
                        continue
1117
 
                    if kind != 'file':
1118
 
                        # Note: this is slightly unnecessary, because symlinks
1119
 
                        # and directories have a "text" which is the empty
1120
 
                        # text, and we know that won't mess up annotations. But
1121
 
                        # it seems cleaner
1122
 
                        continue
1123
 
                    parent_text_key = (
1124
 
                        parent_path,
1125
 
                        parent_tree.get_file_revision(parent_path))
1126
 
                    if parent_text_key not in maybe_file_parent_keys:
1127
 
                        maybe_file_parent_keys.append(parent_text_key)
1128
 
            # Now we have the parents of this content
1129
 
            from breezy.annotate import Annotator
1130
 
            from .annotate import AnnotateProvider
1131
 
            annotate_provider = AnnotateProvider(
1132
 
                self.branch.repository._file_change_scanner)
1133
 
            annotator = Annotator(annotate_provider)
1134
 
 
1135
 
            from breezy.graph import Graph
1136
 
            graph = Graph(annotate_provider)
1137
 
            heads = graph.heads(maybe_file_parent_keys)
1138
 
            file_parent_keys = []
1139
 
            for key in maybe_file_parent_keys:
1140
 
                if key in heads:
1141
 
                    file_parent_keys.append(key)
1142
 
 
1143
 
            text = self.get_file_text(path)
1144
 
            this_key = (path, default_revision)
1145
 
            annotator.add_special_text(this_key, file_parent_keys, text)
1146
 
            annotations = [(key[-1], line)
1147
 
                           for key, line in annotator.annotate_flat(this_key)]
1148
 
            return annotations
1149
 
 
1150
 
    def _rename_one(self, from_rel, to_rel):
1151
 
        os.rename(self.abspath(from_rel), self.abspath(to_rel))
1152
 
 
1153
 
    def _build_checkout_with_index(self):
1154
 
        build_index_from_tree(
1155
 
            self.user_transport.local_abspath('.'),
1156
 
            self.control_transport.local_abspath("index"),
1157
 
            self.store,
1158
 
            None
1159
 
            if self.branch.head is None
1160
 
            else self.store[self.branch.head].tree,
1161
 
            honor_filemode=self._supports_executable())
1162
 
 
1163
 
    def reset_state(self, revision_ids=None):
1164
 
        """Reset the state of the working tree.
1165
 
 
1166
 
        This does a hard-reset to a last-known-good state. This is a way to
1167
 
        fix if something got corrupted (like the .git/index file)
1168
 
        """
1169
 
        with self.lock_tree_write():
1170
 
            if revision_ids is not None:
1171
 
                self.set_parent_ids(revision_ids)
1172
 
            self.index.clear()
1173
 
            self._index_dirty = True
1174
 
            if self.branch.head is not None:
1175
 
                for entry in self.store.iter_tree_contents(
1176
 
                        self.store[self.branch.head].tree):
1177
 
                    if not validate_path(entry.path):
1178
 
                        continue
1179
 
 
1180
 
                    if S_ISGITLINK(entry.mode):
1181
 
                        pass  # TODO(jelmer): record and return submodule paths
1182
 
                    else:
1183
 
                        # Let's at least try to use the working tree file:
1184
 
                        try:
1185
 
                            st = self._lstat(self.abspath(
1186
 
                                entry.path.decode('utf-8')))
1187
 
                        except OSError:
1188
 
                            # But if it doesn't exist, we'll make something up.
1189
 
                            obj = self.store[entry.sha]
1190
 
                            st = os.stat_result((entry.mode, 0, 0, 0,
1191
 
                                                 0, 0, len(
1192
 
                                                     obj.as_raw_string()), 0,
1193
 
                                                 0, 0))
1194
 
                    (index, subpath) = self._lookup_index(entry.path)
1195
 
                    index[subpath] = index_entry_from_stat(st, entry.sha, 0)
1196
 
 
1197
 
    def _update_git_tree(self, old_revision, new_revision, change_reporter=None,
1198
 
                         show_base=False):
1199
 
        basis_tree = self.revision_tree(old_revision)
1200
 
        if new_revision != old_revision:
1201
 
            with basis_tree.lock_read():
1202
 
                new_basis_tree = self.branch.basis_tree()
1203
 
                merge.merge_inner(
1204
 
                    self.branch,
1205
 
                    new_basis_tree,
1206
 
                    basis_tree,
1207
 
                    this_tree=self,
1208
 
                    change_reporter=change_reporter,
1209
 
                    show_base=show_base)
1210
 
 
1211
 
    def pull(self, source, overwrite=False, stop_revision=None,
1212
 
             change_reporter=None, possible_transports=None, local=False,
1213
 
             show_base=False):
1214
 
        with self.lock_write(), source.lock_read():
1215
 
            old_revision = self.branch.last_revision()
1216
 
            count = self.branch.pull(source, overwrite, stop_revision,
1217
 
                                     possible_transports=possible_transports,
1218
 
                                     local=local)
1219
 
            self._update_git_tree(
1220
 
                old_revision=old_revision,
1221
 
                new_revision=self.branch.last_revision(),
1222
 
                change_reporter=change_reporter,
1223
 
                show_base=show_base)
1224
 
            return count
1225
 
 
1226
 
    def add_reference(self, sub_tree):
1227
 
        """Add a TreeReference to the tree, pointing at sub_tree.
1228
 
 
1229
 
        :param sub_tree: subtree to add.
1230
 
        """
1231
 
        with self.lock_tree_write():
1232
 
            try:
1233
 
                sub_tree_path = self.relpath(sub_tree.basedir)
1234
 
            except errors.PathNotChild:
1235
 
                raise BadReferenceTarget(
1236
 
                    self, sub_tree, 'Target not inside tree.')
1237
 
 
1238
 
            self._add([sub_tree_path], [None], ['tree-reference'])
1239
 
 
1240
 
    def _read_submodule_head(self, path):
1241
 
        return read_submodule_head(self.abspath(path))
1242
 
 
1243
 
    def get_reference_revision(self, path, branch=None):
1244
 
        hexsha = self._read_submodule_head(path)
1245
 
        if hexsha is None:
1246
 
            return _mod_revision.NULL_REVISION
1247
 
        return self.branch.lookup_foreign_revision_id(hexsha)
1248
 
 
1249
 
    def get_nested_tree(self, path):
1250
 
        return workingtree.WorkingTree.open(self.abspath(path))
1251
 
 
1252
 
    def _directory_is_tree_reference(self, relpath):
1253
 
        # as a special case, if a directory contains control files then
1254
 
        # it's a tree reference, except that the root of the tree is not
1255
 
        return relpath and osutils.lexists(self.abspath(relpath) + u"/.git")
1256
 
 
1257
 
    def extract(self, sub_path, format=None):
1258
 
        """Extract a subtree from this tree.
1259
 
 
1260
 
        A new branch will be created, relative to the path for this tree.
1261
 
        """
1262
 
        def mkdirs(path):
1263
 
            segments = osutils.splitpath(path)
1264
 
            transport = self.branch.controldir.root_transport
1265
 
            for name in segments:
1266
 
                transport = transport.clone(name)
1267
 
                transport.ensure_base()
1268
 
            return transport
1269
 
 
1270
 
        with self.lock_tree_write():
1271
 
            self.flush()
1272
 
            branch_transport = mkdirs(sub_path)
1273
 
            if format is None:
1274
 
                format = self.controldir.cloning_metadir()
1275
 
            branch_transport.ensure_base()
1276
 
            branch_bzrdir = format.initialize_on_transport(branch_transport)
1277
 
            try:
1278
 
                repo = branch_bzrdir.find_repository()
1279
 
            except errors.NoRepositoryPresent:
1280
 
                repo = branch_bzrdir.create_repository()
1281
 
            if not repo.supports_rich_root():
1282
 
                raise errors.RootNotRich()
1283
 
            new_branch = branch_bzrdir.create_branch()
1284
 
            new_branch.pull(self.branch)
1285
 
            for parent_id in self.get_parent_ids():
1286
 
                new_branch.fetch(self.branch, parent_id)
1287
 
            tree_transport = self.controldir.root_transport.clone(sub_path)
1288
 
            if tree_transport.base != branch_transport.base:
1289
 
                tree_bzrdir = format.initialize_on_transport(tree_transport)
1290
 
                tree_bzrdir.set_branch_reference(new_branch)
1291
 
            else:
1292
 
                tree_bzrdir = branch_bzrdir
1293
 
            wt = tree_bzrdir.create_workingtree(_mod_revision.NULL_REVISION)
1294
 
            wt.set_parent_ids(self.get_parent_ids())
1295
 
            return wt
1296
 
 
1297
 
    def _get_check_refs(self):
1298
 
        """Return the references needed to perform a check of this tree.
1299
 
 
1300
 
        The default implementation returns no refs, and is only suitable for
1301
 
        trees that have no local caching and can commit on ghosts at any time.
1302
 
 
1303
 
        :seealso: breezy.check for details about check_refs.
1304
 
        """
1305
 
        return []
1306
 
 
1307
 
    def copy_content_into(self, tree, revision_id=None):
1308
 
        """Copy the current content and user files of this tree into tree."""
1309
 
        with self.lock_read():
1310
 
            if revision_id is None:
1311
 
                merge.transform_tree(tree, self)
1312
 
            else:
1313
 
                # TODO now merge from tree.last_revision to revision (to
1314
 
                # preserve user local changes)
1315
 
                try:
1316
 
                    other_tree = self.revision_tree(revision_id)
1317
 
                except errors.NoSuchRevision:
1318
 
                    other_tree = self.branch.repository.revision_tree(
1319
 
                        revision_id)
1320
 
 
1321
 
                merge.transform_tree(tree, other_tree)
1322
 
                if revision_id == _mod_revision.NULL_REVISION:
1323
 
                    new_parents = []
1324
 
                else:
1325
 
                    new_parents = [revision_id]
1326
 
                tree.set_parent_ids(new_parents)
1327
 
 
1328
 
    def reference_parent(self, path, possible_transports=None):
1329
 
        remote_url = self.get_reference_info(path)
1330
 
        if remote_url is None:
1331
 
            trace.warning("Unable to find submodule info for %s", path)
1332
 
            return None
1333
 
        return _mod_branch.Branch.open(remote_url, possible_transports=possible_transports)
1334
 
 
1335
 
    def get_reference_info(self, path):
1336
 
        submodule_info = self._submodule_info()
1337
 
        info = submodule_info.get(path.encode('utf-8'))
1338
 
        if info is None:
1339
 
            return None
1340
 
        return info[0].decode('utf-8')
1341
 
 
1342
 
    def set_reference_info(self, tree_path, branch_location):
1343
 
        path = self.abspath('.gitmodules')
1344
 
        try:
1345
 
            config = GitConfigFile.from_path(path)
1346
 
        except EnvironmentError as e:
1347
 
            if e.errno == errno.ENOENT:
1348
 
                config = GitConfigFile()
1349
 
            else:
1350
 
                raise
1351
 
        section = (b'submodule', tree_path.encode('utf-8'))
1352
 
        if branch_location is None:
1353
 
            try:
1354
 
                del config[section]
1355
 
            except KeyError:
1356
 
                pass
1357
 
        else:
1358
 
            branch_location = urlutils.join(
1359
 
                urlutils.strip_segment_parameters(self.branch.user_url),
1360
 
                branch_location)
1361
 
            config.set(
1362
 
                section,
1363
 
                b'path', tree_path.encode('utf-8'))
1364
 
            config.set(
1365
 
                section,
1366
 
                b'url', branch_location.encode('utf-8'))
1367
 
        config.write_to_path(path)
1368
 
        self.add('.gitmodules')
1369
 
 
1370
 
 
1371
 
class GitWorkingTreeFormat(workingtree.WorkingTreeFormat):
1372
 
 
1373
 
    _tree_class = GitWorkingTree
1374
 
 
1375
 
    supports_versioned_directories = False
1376
 
 
1377
 
    supports_setting_file_ids = False
1378
 
 
1379
 
    supports_store_uncommitted = False
1380
 
 
1381
 
    supports_leftmost_parent_id_as_ghost = False
1382
 
 
1383
 
    supports_righthand_parent_id_as_ghost = False
1384
 
 
1385
 
    requires_normalized_unicode_filenames = True
1386
 
 
1387
 
    supports_merge_modified = False
1388
 
 
1389
 
    ignore_filename = ".gitignore"
1390
 
 
1391
 
    @property
1392
 
    def _matchingcontroldir(self):
1393
 
        from .dir import LocalGitControlDirFormat
1394
 
        return LocalGitControlDirFormat()
1395
 
 
1396
 
    def get_format_description(self):
1397
 
        return "Git Working Tree"
1398
 
 
1399
 
    def initialize(self, a_controldir, revision_id=None, from_branch=None,
1400
 
                   accelerator_tree=None, hardlink=False):
1401
 
        """See WorkingTreeFormat.initialize()."""
1402
 
        if not isinstance(a_controldir, LocalGitDir):
1403
 
            raise errors.IncompatibleFormat(self, a_controldir)
1404
 
        branch = a_controldir.open_branch(nascent_ok=True)
1405
 
        if revision_id is not None:
1406
 
            branch.set_last_revision(revision_id)
1407
 
        wt = GitWorkingTree(
1408
 
            a_controldir, a_controldir.open_repository(), branch)
1409
 
        for hook in MutableTree.hooks['post_build_tree']:
1410
 
            hook(wt)
1411
 
        return wt