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Viewing changes to breezy/git/workingtree.py

  • Committer: Marius Kruger
  • Date: 2010-07-10 21:28:56 UTC
  • mto: (5384.1.1 integration)
  • mto: This revision was merged to the branch mainline in revision 5385.
  • Revision ID: marius.kruger@enerweb.co.za-20100710212856-uq4ji3go0u5se7hx
* Update documentation
* add NEWS

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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.config import ConfigFile as GitConfigFile
29
 
from dulwich.file import GitFile, FileLocked
30
 
from dulwich.index import (
31
 
    Index,
32
 
    SHA1Writer,
33
 
    build_index_from_tree,
34
 
    index_entry_from_path,
35
 
    index_entry_from_stat,
36
 
    FLAG_STAGEMASK,
37
 
    read_submodule_head,
38
 
    validate_path,
39
 
    write_index_dict,
40
 
    )
41
 
from dulwich.object_store import (
42
 
    tree_lookup_path,
43
 
    )
44
 
from dulwich.objects import (
45
 
    S_ISGITLINK,
46
 
    )
47
 
import os
48
 
import posixpath
49
 
import stat
50
 
import sys
51
 
 
52
 
from .. import (
53
 
    branch as _mod_branch,
54
 
    conflicts as _mod_conflicts,
55
 
    errors,
56
 
    controldir as _mod_controldir,
57
 
    globbing,
58
 
    ignores,
59
 
    lock,
60
 
    merge,
61
 
    osutils,
62
 
    revision as _mod_revision,
63
 
    trace,
64
 
    transport as _mod_transport,
65
 
    tree,
66
 
    urlutils,
67
 
    workingtree,
68
 
    )
69
 
from ..decorators import (
70
 
    only_raises,
71
 
    )
72
 
from ..mutabletree import (
73
 
    BadReferenceTarget,
74
 
    MutableTree,
75
 
    )
76
 
from ..sixish import text_type
77
 
 
78
 
 
79
 
from .dir import (
80
 
    LocalGitDir,
81
 
    )
82
 
from .tree import (
83
 
    MutableGitIndexTree,
84
 
    )
85
 
from .mapping import (
86
 
    mode_kind,
87
 
    )
88
 
 
89
 
 
90
 
class GitWorkingTree(MutableGitIndexTree, workingtree.WorkingTree):
91
 
    """A Git working tree."""
92
 
 
93
 
    def __init__(self, controldir, repo, branch):
94
 
        MutableGitIndexTree.__init__(self)
95
 
        basedir = controldir.root_transport.local_abspath('.')
96
 
        self.basedir = osutils.realpath(basedir)
97
 
        self.controldir = controldir
98
 
        self.repository = repo
99
 
        self.store = self.repository._git.object_store
100
 
        self.mapping = self.repository.get_mapping()
101
 
        self._branch = branch
102
 
        self._transport = self.repository._git._controltransport
103
 
        self._format = GitWorkingTreeFormat()
104
 
        self.index = None
105
 
        self._index_file = None
106
 
        self.views = self._make_views()
107
 
        self._rules_searcher = None
108
 
        self._detect_case_handling()
109
 
        self._reset_data()
110
 
 
111
 
    def supports_tree_reference(self):
112
 
        return True
113
 
 
114
 
    def supports_rename_tracking(self):
115
 
        return False
116
 
 
117
 
    def _read_index(self):
118
 
        self.index = Index(self.control_transport.local_abspath('index'))
119
 
        self._index_dirty = False
120
 
 
121
 
    def _get_submodule_index(self, relpath):
122
 
        if not isinstance(relpath, bytes):
123
 
            raise TypeError(relpath)
124
 
        try:
125
 
            info = self._submodule_info()[relpath]
126
 
        except KeyError:
127
 
            index_path = os.path.join(self.basedir, relpath.decode('utf-8'), '.git', 'index')
128
 
        else:
129
 
            index_path = self.control_transport.local_abspath(
130
 
                posixpath.join('modules', info[1].decode('utf-8'), 'index'))
131
 
        return Index(index_path)
132
 
 
133
 
    def lock_read(self):
134
 
        """Lock the repository for read operations.
135
 
 
136
 
        :return: A breezy.lock.LogicalLockResult.
137
 
        """
138
 
        if not self._lock_mode:
139
 
            self._lock_mode = 'r'
140
 
            self._lock_count = 1
141
 
            self._read_index()
142
 
        else:
143
 
            self._lock_count += 1
144
 
        self.branch.lock_read()
145
 
        return lock.LogicalLockResult(self.unlock)
146
 
 
147
 
    def _lock_write_tree(self):
148
 
        if not self._lock_mode:
149
 
            self._lock_mode = 'w'
150
 
            self._lock_count = 1
151
 
            try:
152
 
                self._index_file = GitFile(
153
 
                    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 BaseException:
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 BaseException:
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 get_transform(self, pb=None):
228
 
        from ..transform import TreeTransform
229
 
        return TreeTransform(self, pb=pb)
230
 
 
231
 
    def merge_modified(self):
232
 
        return {}
233
 
 
234
 
    def set_merge_modified(self, modified_hashes):
235
 
        raise errors.UnsupportedOperation(self.set_merge_modified, self)
236
 
 
237
 
    def set_parent_trees(self, parents_list, allow_leftmost_as_ghost=False):
238
 
        self.set_parent_ids([p for p, t in parents_list])
239
 
 
240
 
    def _set_merges_from_parent_ids(self, rhs_parent_ids):
241
 
        try:
242
 
            merges = [self.branch.lookup_bzr_revision_id(
243
 
                revid)[0] for revid in rhs_parent_ids]
244
 
        except errors.NoSuchRevision as e:
245
 
            raise errors.GhostRevisionUnusableHere(e.revision)
246
 
        if merges:
247
 
            self.control_transport.put_bytes(
248
 
                'MERGE_HEAD', b'\n'.join(merges),
249
 
                mode=self.controldir._get_file_mode())
250
 
        else:
251
 
            try:
252
 
                self.control_transport.delete('MERGE_HEAD')
253
 
            except errors.NoSuchFile:
254
 
                pass
255
 
 
256
 
    def set_parent_ids(self, revision_ids, allow_leftmost_as_ghost=False):
257
 
        """Set the parent ids to revision_ids.
258
 
 
259
 
        See also set_parent_trees. This api will try to retrieve the tree data
260
 
        for each element of revision_ids from the trees repository. If you have
261
 
        tree data already available, it is more efficient to use
262
 
        set_parent_trees rather than set_parent_ids. set_parent_ids is however
263
 
        an easier API to use.
264
 
 
265
 
        :param revision_ids: The revision_ids to set as the parent ids of this
266
 
            working tree. Any of these may be ghosts.
267
 
        """
268
 
        with self.lock_tree_write():
269
 
            self._check_parents_for_ghosts(
270
 
                revision_ids, allow_leftmost_as_ghost=allow_leftmost_as_ghost)
271
 
            for revision_id in revision_ids:
272
 
                _mod_revision.check_not_reserved_id(revision_id)
273
 
 
274
 
            revision_ids = self._filter_parent_ids_by_ancestry(revision_ids)
275
 
 
276
 
            if len(revision_ids) > 0:
277
 
                self.set_last_revision(revision_ids[0])
278
 
            else:
279
 
                self.set_last_revision(_mod_revision.NULL_REVISION)
280
 
 
281
 
            self._set_merges_from_parent_ids(revision_ids[1:])
282
 
 
283
 
    def get_parent_ids(self):
284
 
        """See Tree.get_parent_ids.
285
 
 
286
 
        This implementation reads the pending merges list and last_revision
287
 
        value and uses that to decide what the parents list should be.
288
 
        """
289
 
        last_rev = _mod_revision.ensure_null(self._last_revision())
290
 
        if _mod_revision.NULL_REVISION == last_rev:
291
 
            parents = []
292
 
        else:
293
 
            parents = [last_rev]
294
 
        try:
295
 
            merges_bytes = self.control_transport.get_bytes('MERGE_HEAD')
296
 
        except errors.NoSuchFile:
297
 
            pass
298
 
        else:
299
 
            for l in osutils.split_lines(merges_bytes):
300
 
                revision_id = l.rstrip(b'\n')
301
 
                parents.append(
302
 
                    self.branch.lookup_foreign_revision_id(revision_id))
303
 
        return parents
304
 
 
305
 
    def check_state(self):
306
 
        """Check that the working state is/isn't valid."""
307
 
        pass
308
 
 
309
 
    def remove(self, files, verbose=False, to_file=None, keep_files=True,
310
 
               force=False):
311
 
        """Remove nominated files from the working tree metadata.
312
 
 
313
 
        :param files: File paths relative to the basedir.
314
 
        :param keep_files: If true, the files will also be kept.
315
 
        :param force: Delete files and directories, even if they are changed
316
 
            and even if the directories are not empty.
317
 
        """
318
 
        if not isinstance(files, list):
319
 
            files = [files]
320
 
 
321
 
        if to_file is None:
322
 
            to_file = sys.stdout
323
 
 
324
 
        def backup(file_to_backup):
325
 
            abs_path = self.abspath(file_to_backup)
326
 
            backup_name = self.controldir._available_backup_name(
327
 
                file_to_backup)
328
 
            osutils.rename(abs_path, self.abspath(backup_name))
329
 
            return "removed %s (but kept a copy: %s)" % (
330
 
                file_to_backup, backup_name)
331
 
 
332
 
        # Sort needed to first handle directory content before the directory
333
 
        files_to_backup = []
334
 
 
335
 
        all_files = set()
336
 
 
337
 
        def recurse_directory_to_add_files(directory):
338
 
            # Recurse directory and add all files
339
 
            # so we can check if they have changed.
340
 
            for parent_info, file_infos in self.walkdirs(directory):
341
 
                for relpath, basename, kind, lstat, fileid, kind in file_infos:
342
 
                    # Is it versioned or ignored?
343
 
                    if self.is_versioned(relpath):
344
 
                        # Add nested content for deletion.
345
 
                        all_files.add(relpath)
346
 
                    else:
347
 
                        # Files which are not versioned
348
 
                        # should be treated as unknown.
349
 
                        files_to_backup.append(relpath)
350
 
 
351
 
        with self.lock_tree_write():
352
 
            for filepath in files:
353
 
                # Get file name into canonical form.
354
 
                abspath = self.abspath(filepath)
355
 
                filepath = self.relpath(abspath)
356
 
 
357
 
                if filepath:
358
 
                    all_files.add(filepath)
359
 
                    recurse_directory_to_add_files(filepath)
360
 
 
361
 
            files = list(all_files)
362
 
 
363
 
            if len(files) == 0:
364
 
                return  # nothing to do
365
 
 
366
 
            # Sort needed to first handle directory content before the
367
 
            # directory
368
 
            files.sort(reverse=True)
369
 
 
370
 
            # Bail out if we are going to delete files we shouldn't
371
 
            if not keep_files and not force:
372
 
                for change in self.iter_changes(
373
 
                        self.basis_tree(), include_unchanged=True,
374
 
                        require_versioned=False, want_unversioned=True,
375
 
                        specific_files=files):
376
 
                    if change.versioned[0] is False:
377
 
                        # The record is unknown or newly added
378
 
                        files_to_backup.append(change.path[1])
379
 
                        files_to_backup.extend(
380
 
                            osutils.parent_directories(change.path[1]))
381
 
                    elif (change.changed_content and (change.kind[1] is not None)
382
 
                            and osutils.is_inside_any(files, change.path[1])):
383
 
                        # Versioned and changed, but not deleted, and still
384
 
                        # in one of the dirs to be deleted.
385
 
                        files_to_backup.append(change.path[1])
386
 
                        files_to_backup.extend(
387
 
                            osutils.parent_directories(change.path[1]))
388
 
 
389
 
            for f in files:
390
 
                if f == '':
391
 
                    continue
392
 
 
393
 
                try:
394
 
                    kind = self.kind(f)
395
 
                except errors.NoSuchFile:
396
 
                    kind = None
397
 
 
398
 
                abs_path = self.abspath(f)
399
 
                if verbose:
400
 
                    # having removed it, it must be either ignored or unknown
401
 
                    if self.is_ignored(f):
402
 
                        new_status = 'I'
403
 
                    else:
404
 
                        new_status = '?'
405
 
                    kind_ch = osutils.kind_marker(kind)
406
 
                    to_file.write(new_status + '       ' + f + kind_ch + '\n')
407
 
                if kind is None:
408
 
                    message = "%s does not exist" % (f, )
409
 
                else:
410
 
                    if not keep_files:
411
 
                        if f in files_to_backup and not force:
412
 
                            message = backup(f)
413
 
                        else:
414
 
                            if kind == 'directory':
415
 
                                osutils.rmtree(abs_path)
416
 
                            else:
417
 
                                osutils.delete_any(abs_path)
418
 
                            message = "deleted %s" % (f,)
419
 
                    else:
420
 
                        message = "removed %s" % (f,)
421
 
                self._unversion_path(f)
422
 
 
423
 
                # print only one message (if any) per file.
424
 
                if message is not None:
425
 
                    trace.note(message)
426
 
            self._versioned_dirs = None
427
 
 
428
 
    def smart_add(self, file_list, recurse=True, action=None, save=True):
429
 
        if not file_list:
430
 
            file_list = [u'.']
431
 
 
432
 
        # expand any symlinks in the directory part, while leaving the
433
 
        # filename alone
434
 
        # only expanding if symlinks are supported avoids windows path bugs
435
 
        if self.supports_symlinks():
436
 
            file_list = list(map(osutils.normalizepath, file_list))
437
 
 
438
 
        conflicts_related = set()
439
 
        for c in self.conflicts():
440
 
            conflicts_related.update(c.associated_filenames())
441
 
 
442
 
        added = []
443
 
        ignored = {}
444
 
        user_dirs = []
445
 
 
446
 
        def call_action(filepath, kind):
447
 
            if filepath == '':
448
 
                return
449
 
            if action is not None:
450
 
                parent_path = posixpath.dirname(filepath)
451
 
                parent_id = self.path2id(parent_path)
452
 
                parent_ie = self._get_dir_ie(parent_path, parent_id)
453
 
                file_id = action(self, parent_ie, filepath, kind)
454
 
                if file_id is not None:
455
 
                    raise workingtree.SettingFileIdUnsupported()
456
 
 
457
 
        with self.lock_tree_write():
458
 
            for filepath in osutils.canonical_relpaths(
459
 
                    self.basedir, file_list):
460
 
                filepath, can_access = osutils.normalized_filename(filepath)
461
 
                if not can_access:
462
 
                    raise errors.InvalidNormalization(filepath)
463
 
 
464
 
                abspath = self.abspath(filepath)
465
 
                kind = osutils.file_kind(abspath)
466
 
                if kind in ("file", "symlink"):
467
 
                    (index, subpath) = self._lookup_index(
468
 
                        filepath.encode('utf-8'))
469
 
                    if subpath in index:
470
 
                        # Already present
471
 
                        continue
472
 
                    call_action(filepath, kind)
473
 
                    if save:
474
 
                        self._index_add_entry(filepath, kind)
475
 
                    added.append(filepath)
476
 
                elif kind == "directory":
477
 
                    (index, subpath) = self._lookup_index(
478
 
                        filepath.encode('utf-8'))
479
 
                    if subpath not in index:
480
 
                        call_action(filepath, kind)
481
 
                    if recurse:
482
 
                        user_dirs.append(filepath)
483
 
                else:
484
 
                    raise errors.BadFileKindError(filename=abspath, kind=kind)
485
 
            for user_dir in user_dirs:
486
 
                abs_user_dir = self.abspath(user_dir)
487
 
                if user_dir != '':
488
 
                    try:
489
 
                        transport = _mod_transport.get_transport_from_path(
490
 
                            abs_user_dir)
491
 
                        _mod_controldir.ControlDirFormat.find_format(transport)
492
 
                        subtree = True
493
 
                    except errors.NotBranchError:
494
 
                        subtree = False
495
 
                    except errors.UnsupportedFormatError:
496
 
                        subtree = False
497
 
                else:
498
 
                    subtree = False
499
 
                if subtree:
500
 
                    trace.warning('skipping nested tree %r', abs_user_dir)
501
 
                    continue
502
 
 
503
 
                for name in os.listdir(abs_user_dir):
504
 
                    subp = os.path.join(user_dir, name)
505
 
                    if (self.is_control_filename(subp) or
506
 
                            self.mapping.is_special_file(subp)):
507
 
                        continue
508
 
                    ignore_glob = self.is_ignored(subp)
509
 
                    if ignore_glob is not None:
510
 
                        ignored.setdefault(ignore_glob, []).append(subp)
511
 
                        continue
512
 
                    abspath = self.abspath(subp)
513
 
                    kind = osutils.file_kind(abspath)
514
 
                    if kind == "directory":
515
 
                        user_dirs.append(subp)
516
 
                    else:
517
 
                        (index, subpath) = self._lookup_index(
518
 
                            subp.encode('utf-8'))
519
 
                        if subpath in index:
520
 
                            # Already present
521
 
                            continue
522
 
                        if subp in conflicts_related:
523
 
                            continue
524
 
                        call_action(subp, kind)
525
 
                        if save:
526
 
                            self._index_add_entry(subp, kind)
527
 
                        added.append(subp)
528
 
            return added, ignored
529
 
 
530
 
    def has_filename(self, filename):
531
 
        return osutils.lexists(self.abspath(filename))
532
 
 
533
 
    def _iter_files_recursive(self, from_dir=None, include_dirs=False,
534
 
                              recurse_nested=False):
535
 
        if from_dir is None:
536
 
            from_dir = u""
537
 
        if not isinstance(from_dir, text_type):
538
 
            raise TypeError(from_dir)
539
 
        encoded_from_dir = self.abspath(from_dir).encode(osutils._fs_enc)
540
 
        for (dirpath, dirnames, filenames) in os.walk(encoded_from_dir):
541
 
            dir_relpath = dirpath[len(self.basedir):].strip(b"/")
542
 
            if self.controldir.is_control_filename(
543
 
                    dir_relpath.decode(osutils._fs_enc)):
544
 
                continue
545
 
            for name in list(dirnames):
546
 
                if self.controldir.is_control_filename(
547
 
                        name.decode(osutils._fs_enc)):
548
 
                    dirnames.remove(name)
549
 
                    continue
550
 
                relpath = os.path.join(dir_relpath, name)
551
 
                if not recurse_nested and self._directory_is_tree_reference(relpath.decode(osutils._fs_enc)):
552
 
                    dirnames.remove(name)
553
 
                if include_dirs:
554
 
                    try:
555
 
                        yield relpath.decode(osutils._fs_enc)
556
 
                    except UnicodeDecodeError:
557
 
                        raise errors.BadFilenameEncoding(
558
 
                            relpath, osutils._fs_enc)
559
 
                    if not self.is_versioned(relpath.decode(osutils._fs_enc)):
560
 
                        dirnames.remove(name)
561
 
            for name in filenames:
562
 
                if self.mapping.is_special_file(name):
563
 
                    continue
564
 
                if self.controldir.is_control_filename(
565
 
                        name.decode(osutils._fs_enc, 'replace')):
566
 
                    continue
567
 
                yp = os.path.join(dir_relpath, name)
568
 
                try:
569
 
                    yield yp.decode(osutils._fs_enc)
570
 
                except UnicodeDecodeError:
571
 
                    raise errors.BadFilenameEncoding(
572
 
                        yp, osutils._fs_enc)
573
 
 
574
 
    def extras(self):
575
 
        """Yield all unversioned files in this WorkingTree.
576
 
        """
577
 
        with self.lock_read():
578
 
            index_paths = set(
579
 
                [p.decode('utf-8') for p, i in self._recurse_index_entries()])
580
 
            all_paths = set(self._iter_files_recursive(include_dirs=False))
581
 
            return iter(all_paths - index_paths)
582
 
 
583
 
    def _gather_kinds(self, files, kinds):
584
 
        """See MutableTree._gather_kinds."""
585
 
        with self.lock_tree_write():
586
 
            for pos, f in enumerate(files):
587
 
                if kinds[pos] is None:
588
 
                    fullpath = osutils.normpath(self.abspath(f))
589
 
                    try:
590
 
                        kind = osutils.file_kind(fullpath)
591
 
                    except OSError as e:
592
 
                        if e.errno == errno.ENOENT:
593
 
                            raise errors.NoSuchFile(fullpath)
594
 
                    if f != '' and self._directory_is_tree_reference(f):
595
 
                        kind = 'tree-reference'
596
 
                    kinds[pos] = kind
597
 
 
598
 
    def flush(self):
599
 
        if self._lock_mode != 'w':
600
 
            raise errors.NotWriteLocked(self)
601
 
        # TODO(jelmer): This shouldn't be writing in-place, but index.lock is
602
 
        # already in use and GitFile doesn't allow overriding the lock file
603
 
        # name :(
604
 
        f = open(self.control_transport.local_abspath('index'), 'wb')
605
 
        # Note that _flush will close the file
606
 
        self._flush(f)
607
 
 
608
 
    def _flush(self, f):
609
 
        try:
610
 
            shaf = SHA1Writer(f)
611
 
            write_index_dict(shaf, self.index)
612
 
            shaf.close()
613
 
        except BaseException:
614
 
            f.abort()
615
 
            raise
616
 
        self._index_dirty = False
617
 
 
618
 
    def get_file_mtime(self, path):
619
 
        """See Tree.get_file_mtime."""
620
 
        try:
621
 
            return self._lstat(path).st_mtime
622
 
        except OSError as e:
623
 
            if e.errno == errno.ENOENT:
624
 
                raise errors.NoSuchFile(path)
625
 
            raise
626
 
 
627
 
    def is_ignored(self, filename):
628
 
        r"""Check whether the filename matches an ignore pattern.
629
 
 
630
 
        If the file is ignored, returns the pattern which caused it to
631
 
        be ignored, otherwise None.  So this can simply be used as a
632
 
        boolean if desired."""
633
 
        if getattr(self, '_global_ignoreglobster', None) is None:
634
 
            ignore_globs = set()
635
 
            ignore_globs.update(ignores.get_runtime_ignores())
636
 
            ignore_globs.update(ignores.get_user_ignores())
637
 
            self._global_ignoreglobster = globbing.ExceptionGlobster(
638
 
                ignore_globs)
639
 
        match = self._global_ignoreglobster.match(filename)
640
 
        if match is not None:
641
 
            return match
642
 
        try:
643
 
            if self.kind(filename) == 'directory':
644
 
                filename += '/'
645
 
        except errors.NoSuchFile:
646
 
            pass
647
 
        filename = filename.lstrip('/')
648
 
        ignore_manager = self._get_ignore_manager()
649
 
        ps = list(ignore_manager.find_matching(filename))
650
 
        if not ps:
651
 
            return None
652
 
        if not ps[-1].is_exclude:
653
 
            return None
654
 
        return bytes(ps[-1])
655
 
 
656
 
    def _get_ignore_manager(self):
657
 
        ignoremanager = getattr(self, '_ignoremanager', None)
658
 
        if ignoremanager is not None:
659
 
            return ignoremanager
660
 
 
661
 
        ignore_manager = IgnoreFilterManager.from_repo(self.repository._git)
662
 
        self._ignoremanager = ignore_manager
663
 
        return ignore_manager
664
 
 
665
 
    def _flush_ignore_list_cache(self):
666
 
        self._ignoremanager = None
667
 
 
668
 
    def set_last_revision(self, revid):
669
 
        if _mod_revision.is_null(revid):
670
 
            self.branch.set_last_revision_info(0, revid)
671
 
            return False
672
 
        _mod_revision.check_not_reserved_id(revid)
673
 
        try:
674
 
            self.branch.generate_revision_history(revid)
675
 
        except errors.NoSuchRevision:
676
 
            raise errors.GhostRevisionUnusableHere(revid)
677
 
 
678
 
    def _reset_data(self):
679
 
        pass
680
 
 
681
 
    def get_file_verifier(self, path, stat_value=None):
682
 
        with self.lock_read():
683
 
            (index, subpath) = self._lookup_index(path.encode('utf-8'))
684
 
            try:
685
 
                return ("GIT", index[subpath].sha)
686
 
            except KeyError:
687
 
                if self._has_dir(path):
688
 
                    return ("GIT", None)
689
 
                raise errors.NoSuchFile(path)
690
 
 
691
 
    def get_file_sha1(self, path, stat_value=None):
692
 
        with self.lock_read():
693
 
            if not self.is_versioned(path):
694
 
                raise errors.NoSuchFile(path)
695
 
            abspath = self.abspath(path)
696
 
            try:
697
 
                return osutils.sha_file_by_name(abspath)
698
 
            except OSError as e:
699
 
                if e.errno in (errno.EISDIR, errno.ENOENT):
700
 
                    return None
701
 
                raise
702
 
 
703
 
    def revision_tree(self, revid):
704
 
        return self.repository.revision_tree(revid)
705
 
 
706
 
    def _is_executable_from_path_and_stat_from_stat(self, path, stat_result):
707
 
        mode = stat_result.st_mode
708
 
        return bool(stat.S_ISREG(mode) and stat.S_IEXEC & mode)
709
 
 
710
 
    def _is_executable_from_path_and_stat_from_basis(self, path, stat_result):
711
 
        return self.basis_tree().is_executable(path)
712
 
 
713
 
    def stored_kind(self, path):
714
 
        with self.lock_read():
715
 
            encoded_path = path.encode('utf-8')
716
 
            (index, subpath) = self._lookup_index(encoded_path)
717
 
            try:
718
 
                return mode_kind(index[subpath].mode)
719
 
            except KeyError:
720
 
                # Maybe it's a directory?
721
 
                if self._has_dir(encoded_path):
722
 
                    return "directory"
723
 
                raise errors.NoSuchFile(path)
724
 
 
725
 
    def _lstat(self, path):
726
 
        return os.lstat(self.abspath(path))
727
 
 
728
 
    def _live_entry(self, path):
729
 
        encoded_path = self.abspath(path.decode('utf-8')).encode(
730
 
            osutils._fs_enc)
731
 
        return index_entry_from_path(encoded_path)
732
 
 
733
 
    def is_executable(self, path):
734
 
        with self.lock_read():
735
 
            if self._supports_executable():
736
 
                mode = self._lstat(path).st_mode
737
 
            else:
738
 
                (index, subpath) = self._lookup_index(path.encode('utf-8'))
739
 
                try:
740
 
                    mode = index[subpath].mode
741
 
                except KeyError:
742
 
                    mode = 0
743
 
            return bool(stat.S_ISREG(mode) and stat.S_IEXEC & mode)
744
 
 
745
 
    def _is_executable_from_path_and_stat(self, path, stat_result):
746
 
        if self._supports_executable():
747
 
            return self._is_executable_from_path_and_stat_from_stat(path, stat_result)
748
 
        else:
749
 
            return self._is_executable_from_path_and_stat_from_basis(
750
 
                path, stat_result)
751
 
 
752
 
    def list_files(self, include_root=False, from_dir=None, recursive=True,
753
 
                   recurse_nested=False):
754
 
        if from_dir is None or from_dir == '.':
755
 
            from_dir = u""
756
 
        dir_ids = {}
757
 
        fk_entries = {'directory': tree.TreeDirectory,
758
 
                      'file': tree.TreeFile,
759
 
                      'symlink': tree.TreeLink,
760
 
                      'tree-reference': tree.TreeReference}
761
 
        with self.lock_read():
762
 
            root_ie = self._get_dir_ie(u"", None)
763
 
            if include_root and not from_dir:
764
 
                yield "", "V", root_ie.kind, root_ie
765
 
            dir_ids[u""] = root_ie.file_id
766
 
            if recursive:
767
 
                path_iterator = sorted(
768
 
                    self._iter_files_recursive(
769
 
                        from_dir, include_dirs=True,
770
 
                        recurse_nested=recurse_nested))
771
 
            else:
772
 
                encoded_from_dir = self.abspath(from_dir).encode(
773
 
                    osutils._fs_enc)
774
 
                path_iterator = sorted(
775
 
                    [os.path.join(from_dir, name.decode(osutils._fs_enc))
776
 
                     for name in os.listdir(encoded_from_dir)
777
 
                     if not self.controldir.is_control_filename(
778
 
                         name.decode(osutils._fs_enc)) and
779
 
                     not self.mapping.is_special_file(
780
 
                         name.decode(osutils._fs_enc))])
781
 
            for path in path_iterator:
782
 
                try:
783
 
                    encoded_path = path.encode("utf-8")
784
 
                except UnicodeEncodeError:
785
 
                    raise errors.BadFilenameEncoding(
786
 
                        path, osutils._fs_enc)
787
 
                (index, index_path) = self._lookup_index(encoded_path)
788
 
                try:
789
 
                    value = index[index_path]
790
 
                except KeyError:
791
 
                    value = None
792
 
                kind = self.kind(path)
793
 
                parent, name = posixpath.split(path)
794
 
                for dir_path, dir_ie in self._add_missing_parent_ids(
795
 
                        parent, dir_ids):
796
 
                    pass
797
 
                if kind == 'tree-reference' and recurse_nested:
798
 
                    ie = self._get_dir_ie(path, self.path2id(path))
799
 
                    yield (posixpath.relpath(path, from_dir), 'V', 'directory',
800
 
                           ie)
801
 
                    continue
802
 
                if kind == 'directory':
803
 
                    if path != from_dir:
804
 
                        if self._has_dir(encoded_path):
805
 
                            ie = self._get_dir_ie(path, self.path2id(path))
806
 
                            status = "V"
807
 
                        elif self.is_ignored(path):
808
 
                            status = "I"
809
 
                            ie = fk_entries[kind]()
810
 
                        else:
811
 
                            status = "?"
812
 
                            ie = fk_entries[kind]()
813
 
                        yield (posixpath.relpath(path, from_dir), status, kind,
814
 
                               ie)
815
 
                    continue
816
 
                if value is not None:
817
 
                    ie = self._get_file_ie(name, path, value, dir_ids[parent])
818
 
                    yield (posixpath.relpath(path, from_dir), "V", ie.kind, ie)
819
 
                else:
820
 
                    ie = fk_entries[kind]()
821
 
                    yield (posixpath.relpath(path, from_dir),
822
 
                           ("I" if self.is_ignored(path) else "?"), kind, ie)
823
 
 
824
 
    def all_file_ids(self):
825
 
        raise errors.UnsupportedOperation(self.all_file_ids, self)
826
 
 
827
 
    def all_versioned_paths(self):
828
 
        with self.lock_read():
829
 
            paths = {u""}
830
 
            for path in self.index:
831
 
                if self.mapping.is_special_file(path):
832
 
                    continue
833
 
                path = path.decode("utf-8")
834
 
                paths.add(path)
835
 
                while path != "":
836
 
                    path = posixpath.dirname(path).strip("/")
837
 
                    if path in paths:
838
 
                        break
839
 
                    paths.add(path)
840
 
            return paths
841
 
 
842
 
    def iter_child_entries(self, path):
843
 
        encoded_path = path.encode('utf-8')
844
 
        with self.lock_read():
845
 
            parent_id = self.path2id(path)
846
 
            found_any = False
847
 
            for item_path, value in self.index.iteritems():
848
 
                decoded_item_path = item_path.decode('utf-8')
849
 
                if self.mapping.is_special_file(item_path):
850
 
                    continue
851
 
                if not osutils.is_inside(path, decoded_item_path):
852
 
                    continue
853
 
                found_any = True
854
 
                subpath = posixpath.relpath(decoded_item_path, path)
855
 
                if '/' in subpath:
856
 
                    dirname = subpath.split('/', 1)[0]
857
 
                    file_ie = self._get_dir_ie(
858
 
                        posixpath.join(path, dirname), parent_id)
859
 
                else:
860
 
                    (unused_parent, name) = posixpath.split(decoded_item_path)
861
 
                    file_ie = self._get_file_ie(
862
 
                        name, decoded_item_path, value, parent_id)
863
 
                yield file_ie
864
 
            if not found_any and path != u'':
865
 
                raise errors.NoSuchFile(path)
866
 
 
867
 
    def conflicts(self):
868
 
        with self.lock_read():
869
 
            conflicts = _mod_conflicts.ConflictList()
870
 
            for item_path, value in self.index.iteritems():
871
 
                if value.flags & FLAG_STAGEMASK:
872
 
                    conflicts.append(_mod_conflicts.TextConflict(
873
 
                        item_path.decode('utf-8')))
874
 
            return conflicts
875
 
 
876
 
    def set_conflicts(self, conflicts):
877
 
        by_path = set()
878
 
        for conflict in conflicts:
879
 
            if conflict.typestring in ('text conflict', 'contents conflict'):
880
 
                by_path.add(conflict.path.encode('utf-8'))
881
 
            else:
882
 
                raise errors.UnsupportedOperation(self.set_conflicts, self)
883
 
        with self.lock_tree_write():
884
 
            for path in self.index:
885
 
                self._set_conflicted(path, path in by_path)
886
 
 
887
 
    def _set_conflicted(self, path, conflicted):
888
 
        trace.mutter('change conflict: %r -> %r', path, conflicted)
889
 
        value = self.index[path]
890
 
        self._index_dirty = True
891
 
        if conflicted:
892
 
            self.index[path] = (value[:9] + (value[9] | FLAG_STAGEMASK, ))
893
 
        else:
894
 
            self.index[path] = (value[:9] + (value[9] & ~ FLAG_STAGEMASK, ))
895
 
 
896
 
    def add_conflicts(self, new_conflicts):
897
 
        with self.lock_tree_write():
898
 
            for conflict in new_conflicts:
899
 
                if conflict.typestring in ('text conflict',
900
 
                                           'contents conflict'):
901
 
                    try:
902
 
                        self._set_conflicted(
903
 
                            conflict.path.encode('utf-8'), True)
904
 
                    except KeyError:
905
 
                        raise errors.UnsupportedOperation(
906
 
                            self.add_conflicts, self)
907
 
                else:
908
 
                    raise errors.UnsupportedOperation(self.add_conflicts, self)
909
 
 
910
 
    def walkdirs(self, prefix=""):
911
 
        """Walk the directories of this tree.
912
 
 
913
 
        returns a generator which yields items in the form:
914
 
                ((curren_directory_path, fileid),
915
 
                 [(file1_path, file1_name, file1_kind, (lstat), file1_id,
916
 
                   file1_kind), ... ])
917
 
 
918
 
        This API returns a generator, which is only valid during the current
919
 
        tree transaction - within a single lock_read or lock_write duration.
920
 
 
921
 
        If the tree is not locked, it may cause an error to be raised,
922
 
        depending on the tree implementation.
923
 
        """
924
 
        from bisect import bisect_left
925
 
        import operator
926
 
        disk_top = self.abspath(prefix)
927
 
        if disk_top.endswith('/'):
928
 
            disk_top = disk_top[:-1]
929
 
        top_strip_len = len(disk_top) + 1
930
 
        inventory_iterator = self._walkdirs(prefix)
931
 
        disk_iterator = osutils.walkdirs(disk_top, prefix)
932
 
        try:
933
 
            current_disk = next(disk_iterator)
934
 
            disk_finished = False
935
 
        except OSError as e:
936
 
            if not (e.errno == errno.ENOENT
937
 
                    or (sys.platform == 'win32' and e.errno == ERROR_PATH_NOT_FOUND)):
938
 
                raise
939
 
            current_disk = None
940
 
            disk_finished = True
941
 
        try:
942
 
            current_inv = next(inventory_iterator)
943
 
            inv_finished = False
944
 
        except StopIteration:
945
 
            current_inv = None
946
 
            inv_finished = True
947
 
        while not inv_finished or not disk_finished:
948
 
            if current_disk:
949
 
                ((cur_disk_dir_relpath, cur_disk_dir_path_from_top),
950
 
                    cur_disk_dir_content) = current_disk
951
 
            else:
952
 
                ((cur_disk_dir_relpath, cur_disk_dir_path_from_top),
953
 
                    cur_disk_dir_content) = ((None, None), None)
954
 
            if not disk_finished:
955
 
                # strip out .bzr dirs
956
 
                if (cur_disk_dir_path_from_top[top_strip_len:] == ''
957
 
                        and len(cur_disk_dir_content) > 0):
958
 
                    # osutils.walkdirs can be made nicer -
959
 
                    # yield the path-from-prefix rather than the pathjoined
960
 
                    # value.
961
 
                    bzrdir_loc = bisect_left(cur_disk_dir_content,
962
 
                                             ('.git', '.git'))
963
 
                    if (bzrdir_loc < len(cur_disk_dir_content) and
964
 
                        self.controldir.is_control_filename(
965
 
                            cur_disk_dir_content[bzrdir_loc][0])):
966
 
                        # we dont yield the contents of, or, .bzr itself.
967
 
                        del cur_disk_dir_content[bzrdir_loc]
968
 
            if inv_finished:
969
 
                # everything is unknown
970
 
                direction = 1
971
 
            elif disk_finished:
972
 
                # everything is missing
973
 
                direction = -1
974
 
            else:
975
 
                direction = ((current_inv[0][0] > cur_disk_dir_relpath)
976
 
                             - (current_inv[0][0] < cur_disk_dir_relpath))
977
 
            if direction > 0:
978
 
                # disk is before inventory - unknown
979
 
                dirblock = [(relpath, basename, kind, stat, None, None) for
980
 
                            relpath, basename, kind, stat, top_path in
981
 
                            cur_disk_dir_content]
982
 
                yield (cur_disk_dir_relpath, None), dirblock
983
 
                try:
984
 
                    current_disk = next(disk_iterator)
985
 
                except StopIteration:
986
 
                    disk_finished = True
987
 
            elif direction < 0:
988
 
                # inventory is before disk - missing.
989
 
                dirblock = [(relpath, basename, 'unknown', None, fileid, kind)
990
 
                            for relpath, basename, dkind, stat, fileid, kind in
991
 
                            current_inv[1]]
992
 
                yield (current_inv[0][0], current_inv[0][1]), dirblock
993
 
                try:
994
 
                    current_inv = next(inventory_iterator)
995
 
                except StopIteration:
996
 
                    inv_finished = True
997
 
            else:
998
 
                # versioned present directory
999
 
                # merge the inventory and disk data together
1000
 
                dirblock = []
1001
 
                for relpath, subiterator in itertools.groupby(sorted(
1002
 
                        current_inv[1] + cur_disk_dir_content,
1003
 
                        key=operator.itemgetter(0)), operator.itemgetter(1)):
1004
 
                    path_elements = list(subiterator)
1005
 
                    if len(path_elements) == 2:
1006
 
                        inv_row, disk_row = path_elements
1007
 
                        # versioned, present file
1008
 
                        dirblock.append((inv_row[0],
1009
 
                                         inv_row[1], disk_row[2],
1010
 
                                         disk_row[3], inv_row[4],
1011
 
                                         inv_row[5]))
1012
 
                    elif len(path_elements[0]) == 5:
1013
 
                        # unknown disk file
1014
 
                        dirblock.append(
1015
 
                            (path_elements[0][0], path_elements[0][1],
1016
 
                                path_elements[0][2], path_elements[0][3],
1017
 
                                None, None))
1018
 
                    elif len(path_elements[0]) == 6:
1019
 
                        # versioned, absent file.
1020
 
                        dirblock.append(
1021
 
                            (path_elements[0][0], path_elements[0][1],
1022
 
                                'unknown', None, path_elements[0][4],
1023
 
                                path_elements[0][5]))
1024
 
                    else:
1025
 
                        raise NotImplementedError('unreachable code')
1026
 
                yield current_inv[0], dirblock
1027
 
                try:
1028
 
                    current_inv = next(inventory_iterator)
1029
 
                except StopIteration:
1030
 
                    inv_finished = True
1031
 
                try:
1032
 
                    current_disk = next(disk_iterator)
1033
 
                except StopIteration:
1034
 
                    disk_finished = True
1035
 
 
1036
 
    def _walkdirs(self, prefix=u""):
1037
 
        if prefix != u"":
1038
 
            prefix += u"/"
1039
 
        prefix = prefix.encode('utf-8')
1040
 
        per_dir = defaultdict(set)
1041
 
        if prefix == b"":
1042
 
            per_dir[(u'', self.path2id(''))] = set()
1043
 
 
1044
 
        def add_entry(path, kind):
1045
 
            if path == b'' or not path.startswith(prefix):
1046
 
                return
1047
 
            (dirname, child_name) = posixpath.split(path)
1048
 
            add_entry(dirname, 'directory')
1049
 
            dirname = dirname.decode("utf-8")
1050
 
            dir_file_id = self.path2id(dirname)
1051
 
            if not isinstance(value, tuple) or len(value) != 10:
1052
 
                raise ValueError(value)
1053
 
            per_dir[(dirname, dir_file_id)].add(
1054
 
                (path.decode("utf-8"), child_name.decode("utf-8"),
1055
 
                 kind, None,
1056
 
                 self.path2id(path.decode("utf-8")),
1057
 
                 kind))
1058
 
        with self.lock_read():
1059
 
            for path, value in self.index.iteritems():
1060
 
                if self.mapping.is_special_file(path):
1061
 
                    continue
1062
 
                if not path.startswith(prefix):
1063
 
                    continue
1064
 
                add_entry(path, mode_kind(value.mode))
1065
 
        return ((k, sorted(v)) for (k, v) in sorted(per_dir.items()))
1066
 
 
1067
 
    def get_shelf_manager(self):
1068
 
        raise workingtree.ShelvingUnsupported()
1069
 
 
1070
 
    def store_uncommitted(self):
1071
 
        raise errors.StoringUncommittedNotSupported(self)
1072
 
 
1073
 
    def apply_inventory_delta(self, changes):
1074
 
        for (old_path, new_path, file_id, ie) in changes:
1075
 
            if old_path is not None:
1076
 
                (index, old_subpath) = self._lookup_index(
1077
 
                    old_path.encode('utf-8'))
1078
 
                try:
1079
 
                    self._index_del_entry(index, old_subpath)
1080
 
                except KeyError:
1081
 
                    pass
1082
 
                else:
1083
 
                    self._versioned_dirs = None
1084
 
            if new_path is not None and ie.kind != 'directory':
1085
 
                if ie.kind == 'tree-reference':
1086
 
                    self._index_add_entry(
1087
 
                        new_path, ie.kind,
1088
 
                        reference_revision=ie.reference_revision)
1089
 
                else:
1090
 
                    self._index_add_entry(new_path, ie.kind)
1091
 
        self.flush()
1092
 
 
1093
 
    def annotate_iter(self, path,
1094
 
                      default_revision=_mod_revision.CURRENT_REVISION):
1095
 
        """See Tree.annotate_iter
1096
 
 
1097
 
        This implementation will use the basis tree implementation if possible.
1098
 
        Lines not in the basis are attributed to CURRENT_REVISION
1099
 
 
1100
 
        If there are pending merges, lines added by those merges will be
1101
 
        incorrectly attributed to CURRENT_REVISION (but after committing, the
1102
 
        attribution will be correct).
1103
 
        """
1104
 
        with self.lock_read():
1105
 
            maybe_file_parent_keys = []
1106
 
            for parent_id in self.get_parent_ids():
1107
 
                try:
1108
 
                    parent_tree = self.revision_tree(parent_id)
1109
 
                except errors.NoSuchRevisionInTree:
1110
 
                    parent_tree = self.branch.repository.revision_tree(
1111
 
                        parent_id)
1112
 
                with parent_tree.lock_read():
1113
 
                    # TODO(jelmer): Use rename/copy tracker to find path name
1114
 
                    # in parent
1115
 
                    parent_path = path
1116
 
                    try:
1117
 
                        kind = parent_tree.kind(parent_path)
1118
 
                    except errors.NoSuchFile:
1119
 
                        continue
1120
 
                    if kind != 'file':
1121
 
                        # Note: this is slightly unnecessary, because symlinks
1122
 
                        # and directories have a "text" which is the empty
1123
 
                        # text, and we know that won't mess up annotations. But
1124
 
                        # it seems cleaner
1125
 
                        continue
1126
 
                    parent_text_key = (
1127
 
                        parent_path,
1128
 
                        parent_tree.get_file_revision(parent_path))
1129
 
                    if parent_text_key not in maybe_file_parent_keys:
1130
 
                        maybe_file_parent_keys.append(parent_text_key)
1131
 
            # Now we have the parents of this content
1132
 
            from breezy.annotate import Annotator
1133
 
            from .annotate import AnnotateProvider
1134
 
            annotate_provider = AnnotateProvider(
1135
 
                self.branch.repository._file_change_scanner)
1136
 
            annotator = Annotator(annotate_provider)
1137
 
 
1138
 
            from breezy.graph import Graph
1139
 
            graph = Graph(annotate_provider)
1140
 
            heads = graph.heads(maybe_file_parent_keys)
1141
 
            file_parent_keys = []
1142
 
            for key in maybe_file_parent_keys:
1143
 
                if key in heads:
1144
 
                    file_parent_keys.append(key)
1145
 
 
1146
 
            text = self.get_file_text(path)
1147
 
            this_key = (path, default_revision)
1148
 
            annotator.add_special_text(this_key, file_parent_keys, text)
1149
 
            annotations = [(key[-1], line)
1150
 
                           for key, line in annotator.annotate_flat(this_key)]
1151
 
            return annotations
1152
 
 
1153
 
    def _rename_one(self, from_rel, to_rel):
1154
 
        os.rename(self.abspath(from_rel), self.abspath(to_rel))
1155
 
 
1156
 
    def _build_checkout_with_index(self):
1157
 
        build_index_from_tree(
1158
 
            self.user_transport.local_abspath('.'),
1159
 
            self.control_transport.local_abspath("index"),
1160
 
            self.store,
1161
 
            None
1162
 
            if self.branch.head is None
1163
 
            else self.store[self.branch.head].tree,
1164
 
            honor_filemode=self._supports_executable())
1165
 
 
1166
 
    def reset_state(self, revision_ids=None):
1167
 
        """Reset the state of the working tree.
1168
 
 
1169
 
        This does a hard-reset to a last-known-good state. This is a way to
1170
 
        fix if something got corrupted (like the .git/index file)
1171
 
        """
1172
 
        with self.lock_tree_write():
1173
 
            if revision_ids is not None:
1174
 
                self.set_parent_ids(revision_ids)
1175
 
            self.index.clear()
1176
 
            self._index_dirty = True
1177
 
            if self.branch.head is not None:
1178
 
                for entry in self.store.iter_tree_contents(
1179
 
                        self.store[self.branch.head].tree):
1180
 
                    if not validate_path(entry.path):
1181
 
                        continue
1182
 
 
1183
 
                    if S_ISGITLINK(entry.mode):
1184
 
                        pass  # TODO(jelmer): record and return submodule paths
1185
 
                    else:
1186
 
                        # Let's at least try to use the working tree file:
1187
 
                        try:
1188
 
                            st = self._lstat(self.abspath(
1189
 
                                entry.path.decode('utf-8')))
1190
 
                        except OSError:
1191
 
                            # But if it doesn't exist, we'll make something up.
1192
 
                            obj = self.store[entry.sha]
1193
 
                            st = os.stat_result((entry.mode, 0, 0, 0,
1194
 
                                                 0, 0, len(
1195
 
                                                     obj.as_raw_string()), 0,
1196
 
                                                 0, 0))
1197
 
                    (index, subpath) = self._lookup_index(entry.path)
1198
 
                    index[subpath] = index_entry_from_stat(st, entry.sha, 0)
1199
 
 
1200
 
    def _update_git_tree(self, old_revision, new_revision, change_reporter=None,
1201
 
                         show_base=False):
1202
 
        basis_tree = self.revision_tree(old_revision)
1203
 
        if new_revision != old_revision:
1204
 
            with basis_tree.lock_read():
1205
 
                new_basis_tree = self.branch.basis_tree()
1206
 
                merge.merge_inner(
1207
 
                    self.branch,
1208
 
                    new_basis_tree,
1209
 
                    basis_tree,
1210
 
                    this_tree=self,
1211
 
                    change_reporter=change_reporter,
1212
 
                    show_base=show_base)
1213
 
 
1214
 
    def pull(self, source, overwrite=False, stop_revision=None,
1215
 
             change_reporter=None, possible_transports=None, local=False,
1216
 
             show_base=False, tag_selector=None):
1217
 
        with self.lock_write(), source.lock_read():
1218
 
            old_revision = self.branch.last_revision()
1219
 
            count = self.branch.pull(source, overwrite, stop_revision,
1220
 
                                     possible_transports=possible_transports,
1221
 
                                     local=local, tag_selector=tag_selector)
1222
 
            self._update_git_tree(
1223
 
                old_revision=old_revision,
1224
 
                new_revision=self.branch.last_revision(),
1225
 
                change_reporter=change_reporter,
1226
 
                show_base=show_base)
1227
 
            return count
1228
 
 
1229
 
    def add_reference(self, sub_tree):
1230
 
        """Add a TreeReference to the tree, pointing at sub_tree.
1231
 
 
1232
 
        :param sub_tree: subtree to add.
1233
 
        """
1234
 
        with self.lock_tree_write():
1235
 
            try:
1236
 
                sub_tree_path = self.relpath(sub_tree.basedir)
1237
 
            except errors.PathNotChild:
1238
 
                raise BadReferenceTarget(
1239
 
                    self, sub_tree, 'Target not inside tree.')
1240
 
 
1241
 
            self._add([sub_tree_path], [None], ['tree-reference'])
1242
 
 
1243
 
    def _read_submodule_head(self, path):
1244
 
        return read_submodule_head(self.abspath(path))
1245
 
 
1246
 
    def get_reference_revision(self, path, branch=None):
1247
 
        hexsha = self._read_submodule_head(path)
1248
 
        if hexsha is None:
1249
 
            return _mod_revision.NULL_REVISION
1250
 
        return self.branch.lookup_foreign_revision_id(hexsha)
1251
 
 
1252
 
    def get_nested_tree(self, path):
1253
 
        return workingtree.WorkingTree.open(self.abspath(path))
1254
 
 
1255
 
    def _directory_is_tree_reference(self, relpath):
1256
 
        # as a special case, if a directory contains control files then
1257
 
        # it's a tree reference, except that the root of the tree is not
1258
 
        return relpath and osutils.lexists(self.abspath(relpath) + u"/.git")
1259
 
 
1260
 
    def extract(self, sub_path, format=None):
1261
 
        """Extract a subtree from this tree.
1262
 
 
1263
 
        A new branch will be created, relative to the path for this tree.
1264
 
        """
1265
 
        def mkdirs(path):
1266
 
            segments = osutils.splitpath(path)
1267
 
            transport = self.branch.controldir.root_transport
1268
 
            for name in segments:
1269
 
                transport = transport.clone(name)
1270
 
                transport.ensure_base()
1271
 
            return transport
1272
 
 
1273
 
        with self.lock_tree_write():
1274
 
            self.flush()
1275
 
            branch_transport = mkdirs(sub_path)
1276
 
            if format is None:
1277
 
                format = self.controldir.cloning_metadir()
1278
 
            branch_transport.ensure_base()
1279
 
            branch_bzrdir = format.initialize_on_transport(branch_transport)
1280
 
            try:
1281
 
                repo = branch_bzrdir.find_repository()
1282
 
            except errors.NoRepositoryPresent:
1283
 
                repo = branch_bzrdir.create_repository()
1284
 
            if not repo.supports_rich_root():
1285
 
                raise errors.RootNotRich()
1286
 
            new_branch = branch_bzrdir.create_branch()
1287
 
            new_branch.pull(self.branch)
1288
 
            for parent_id in self.get_parent_ids():
1289
 
                new_branch.fetch(self.branch, parent_id)
1290
 
            tree_transport = self.controldir.root_transport.clone(sub_path)
1291
 
            if tree_transport.base != branch_transport.base:
1292
 
                tree_bzrdir = format.initialize_on_transport(tree_transport)
1293
 
                tree_bzrdir.set_branch_reference(new_branch)
1294
 
            else:
1295
 
                tree_bzrdir = branch_bzrdir
1296
 
            wt = tree_bzrdir.create_workingtree(_mod_revision.NULL_REVISION)
1297
 
            wt.set_parent_ids(self.get_parent_ids())
1298
 
            return wt
1299
 
 
1300
 
    def _get_check_refs(self):
1301
 
        """Return the references needed to perform a check of this tree.
1302
 
 
1303
 
        The default implementation returns no refs, and is only suitable for
1304
 
        trees that have no local caching and can commit on ghosts at any time.
1305
 
 
1306
 
        :seealso: breezy.check for details about check_refs.
1307
 
        """
1308
 
        return []
1309
 
 
1310
 
    def copy_content_into(self, tree, revision_id=None):
1311
 
        """Copy the current content and user files of this tree into tree."""
1312
 
        with self.lock_read():
1313
 
            if revision_id is None:
1314
 
                merge.transform_tree(tree, self)
1315
 
            else:
1316
 
                # TODO now merge from tree.last_revision to revision (to
1317
 
                # preserve user local changes)
1318
 
                try:
1319
 
                    other_tree = self.revision_tree(revision_id)
1320
 
                except errors.NoSuchRevision:
1321
 
                    other_tree = self.branch.repository.revision_tree(
1322
 
                        revision_id)
1323
 
 
1324
 
                merge.transform_tree(tree, other_tree)
1325
 
                if revision_id == _mod_revision.NULL_REVISION:
1326
 
                    new_parents = []
1327
 
                else:
1328
 
                    new_parents = [revision_id]
1329
 
                tree.set_parent_ids(new_parents)
1330
 
 
1331
 
    def reference_parent(self, path, possible_transports=None):
1332
 
        remote_url = self.get_reference_info(path)
1333
 
        if remote_url is None:
1334
 
            trace.warning("Unable to find submodule info for %s", path)
1335
 
            return None
1336
 
        return _mod_branch.Branch.open(remote_url, possible_transports=possible_transports)
1337
 
 
1338
 
    def get_reference_info(self, path):
1339
 
        submodule_info = self._submodule_info()
1340
 
        info = submodule_info.get(path.encode('utf-8'))
1341
 
        if info is None:
1342
 
            return None
1343
 
        return info[0].decode('utf-8')
1344
 
 
1345
 
    def set_reference_info(self, tree_path, branch_location):
1346
 
        path = self.abspath('.gitmodules')
1347
 
        try:
1348
 
            config = GitConfigFile.from_path(path)
1349
 
        except EnvironmentError as e:
1350
 
            if e.errno == errno.ENOENT:
1351
 
                config = GitConfigFile()
1352
 
            else:
1353
 
                raise
1354
 
        section = (b'submodule', tree_path.encode('utf-8'))
1355
 
        if branch_location is None:
1356
 
            try:
1357
 
                del config[section]
1358
 
            except KeyError:
1359
 
                pass
1360
 
        else:
1361
 
            branch_location = urlutils.join(
1362
 
                urlutils.strip_segment_parameters(self.branch.user_url),
1363
 
                branch_location)
1364
 
            config.set(
1365
 
                section,
1366
 
                b'path', tree_path.encode('utf-8'))
1367
 
            config.set(
1368
 
                section,
1369
 
                b'url', branch_location.encode('utf-8'))
1370
 
        config.write_to_path(path)
1371
 
        self.add('.gitmodules')
1372
 
 
1373
 
 
1374
 
class GitWorkingTreeFormat(workingtree.WorkingTreeFormat):
1375
 
 
1376
 
    _tree_class = GitWorkingTree
1377
 
 
1378
 
    supports_versioned_directories = False
1379
 
 
1380
 
    supports_setting_file_ids = False
1381
 
 
1382
 
    supports_store_uncommitted = False
1383
 
 
1384
 
    supports_leftmost_parent_id_as_ghost = False
1385
 
 
1386
 
    supports_righthand_parent_id_as_ghost = False
1387
 
 
1388
 
    requires_normalized_unicode_filenames = True
1389
 
 
1390
 
    supports_merge_modified = False
1391
 
 
1392
 
    ignore_filename = ".gitignore"
1393
 
 
1394
 
    @property
1395
 
    def _matchingcontroldir(self):
1396
 
        from .dir import LocalGitControlDirFormat
1397
 
        return LocalGitControlDirFormat()
1398
 
 
1399
 
    def get_format_description(self):
1400
 
        return "Git Working Tree"
1401
 
 
1402
 
    def initialize(self, a_controldir, revision_id=None, from_branch=None,
1403
 
                   accelerator_tree=None, hardlink=False):
1404
 
        """See WorkingTreeFormat.initialize()."""
1405
 
        if not isinstance(a_controldir, LocalGitDir):
1406
 
            raise errors.IncompatibleFormat(self, a_controldir)
1407
 
        branch = a_controldir.open_branch(nascent_ok=True)
1408
 
        if revision_id is not None:
1409
 
            branch.set_last_revision(revision_id)
1410
 
        wt = GitWorkingTree(
1411
 
            a_controldir, a_controldir.open_repository(), branch)
1412
 
        for hook in MutableTree.hooks['post_build_tree']:
1413
 
            hook(wt)
1414
 
        return wt