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Viewing changes to breezy/git/workingtree.py

  • Committer: Jelmer Vernooij
  • Date: 2018-09-12 18:20:02 UTC
  • mto: This revision was merged to the branch mainline in revision 7107.
  • Revision ID: jelmer@jelmer.uk-20180912182002-5z6dvag2frdvr9y2
Fix remaining deprecation warning test.

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Lines of Context:
 
1
# Copyright (C) 2008-2018 Jelmer Vernooij <jelmer@jelmer.uk>
 
2
#
 
3
# This program is free software; you can redistribute it and/or modify
 
4
# it under the terms of the GNU General Public License as published by
 
5
# the Free Software Foundation; either version 2 of the License, or
 
6
# (at your option) any later version.
 
7
#
 
8
# This program is distributed in the hope that it will be useful,
 
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
11
# GNU General Public License for more details.
 
12
#
 
13
# You should have received a copy of the GNU General Public License
 
14
# along with this program; if not, write to the Free Software
 
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
16
 
 
17
 
 
18
"""An adapter between a Git index and a Bazaar Working Tree"""
 
19
 
 
20
from __future__ import absolute_import
 
21
 
 
22
import itertools
 
23
from collections import defaultdict
 
24
import errno
 
25
from dulwich.ignore import (
 
26
    IgnoreFilterManager,
 
27
    )
 
28
from dulwich.file import GitFile, FileLocked
 
29
from dulwich.index import (
 
30
    Index,
 
31
    SHA1Writer,
 
32
    build_index_from_tree,
 
33
    changes_from_tree,
 
34
    index_entry_from_path,
 
35
    index_entry_from_stat,
 
36
    iter_fresh_entries,
 
37
    FLAG_STAGEMASK,
 
38
    read_submodule_head,
 
39
    validate_path,
 
40
    write_index_dict,
 
41
    )
 
42
from dulwich.object_store import (
 
43
    tree_lookup_path,
 
44
    )
 
45
from dulwich.objects import (
 
46
    Blob,
 
47
    Tree,
 
48
    S_IFGITLINK,
 
49
    S_ISGITLINK,
 
50
    ZERO_SHA,
 
51
    )
 
52
from dulwich.repo import (
 
53
    NotGitRepository,
 
54
    Repo as GitRepo,
 
55
    )
 
56
import os
 
57
import posixpath
 
58
import re
 
59
import stat
 
60
import sys
 
61
 
 
62
from .. import (
 
63
    conflicts as _mod_conflicts,
 
64
    errors,
 
65
    controldir as _mod_controldir,
 
66
    globbing,
 
67
    ignores,
 
68
    lock,
 
69
    merge,
 
70
    osutils,
 
71
    revision as _mod_revision,
 
72
    trace,
 
73
    transport as _mod_transport,
 
74
    tree,
 
75
    workingtree,
 
76
    )
 
77
from ..decorators import (
 
78
    only_raises,
 
79
    )
 
80
from ..bzr import (
 
81
    inventory,
 
82
    )
 
83
from ..mutabletree import (
 
84
    BadReferenceTarget,
 
85
    MutableTree,
 
86
    )
 
87
 
 
88
 
 
89
from .dir import (
 
90
    LocalGitDir,
 
91
    )
 
92
from .tree import (
 
93
    MutableGitIndexTree,
 
94
    )
 
95
from .mapping import (
 
96
    GitFileIdMap,
 
97
    mode_kind,
 
98
    )
 
99
 
 
100
IGNORE_FILENAME = ".gitignore"
 
101
 
 
102
 
 
103
class GitWorkingTree(MutableGitIndexTree,workingtree.WorkingTree):
 
104
    """A Git working tree."""
 
105
 
 
106
    def __init__(self, controldir, repo, branch):
 
107
        MutableGitIndexTree.__init__(self)
 
108
        basedir = controldir.root_transport.local_abspath('.')
 
109
        self.basedir = osutils.realpath(basedir)
 
110
        self.controldir = controldir
 
111
        self.repository = repo
 
112
        self.store = self.repository._git.object_store
 
113
        self.mapping = self.repository.get_mapping()
 
114
        self._branch = branch
 
115
        self._transport = controldir.transport
 
116
        self._format = GitWorkingTreeFormat()
 
117
        self.index = None
 
118
        self._index_file = None
 
119
        self.views = self._make_views()
 
120
        self._rules_searcher = None
 
121
        self._detect_case_handling()
 
122
        self._reset_data()
 
123
 
 
124
    def supports_tree_reference(self):
 
125
        return True
 
126
 
 
127
    def supports_rename_tracking(self):
 
128
        return False
 
129
 
 
130
    def _read_index(self):
 
131
        self.index = Index(self.control_transport.local_abspath('index'))
 
132
        self._index_dirty = False
 
133
 
 
134
    def lock_read(self):
 
135
        """Lock the repository for read operations.
 
136
 
 
137
        :return: A breezy.lock.LogicalLockResult.
 
138
        """
 
139
        if not self._lock_mode:
 
140
            self._lock_mode = 'r'
 
141
            self._lock_count = 1
 
142
            self._read_index()
 
143
        else:
 
144
            self._lock_count += 1
 
145
        self.branch.lock_read()
 
146
        return lock.LogicalLockResult(self.unlock)
 
147
 
 
148
    def _lock_write_tree(self):
 
149
        if not self._lock_mode:
 
150
            self._lock_mode = 'w'
 
151
            self._lock_count = 1
 
152
            try:
 
153
                self._index_file = GitFile(self.control_transport.local_abspath('index'), 'wb')
 
154
            except FileLocked:
 
155
                raise errors.LockContention('index')
 
156
            self._read_index()
 
157
        elif self._lock_mode == 'r':
 
158
            raise errors.ReadOnlyError(self)
 
159
        else:
 
160
            self._lock_count +=1
 
161
 
 
162
    def lock_tree_write(self):
 
163
        self.branch.lock_read()
 
164
        try:
 
165
            self._lock_write_tree()
 
166
            return lock.LogicalLockResult(self.unlock)
 
167
        except:
 
168
            self.branch.unlock()
 
169
            raise
 
170
 
 
171
    def lock_write(self, token=None):
 
172
        self.branch.lock_write()
 
173
        try:
 
174
            self._lock_write_tree()
 
175
            return lock.LogicalLockResult(self.unlock)
 
176
        except:
 
177
            self.branch.unlock()
 
178
            raise
 
179
 
 
180
    def is_locked(self):
 
181
        return self._lock_count >= 1
 
182
 
 
183
    def get_physical_lock_status(self):
 
184
        return False
 
185
 
 
186
    def break_lock(self):
 
187
        try:
 
188
            self.control_transport.delete('index.lock')
 
189
        except errors.NoSuchFile:
 
190
            pass
 
191
        self.branch.break_lock()
 
192
 
 
193
    @only_raises(errors.LockNotHeld, errors.LockBroken)
 
194
    def unlock(self):
 
195
        if not self._lock_count:
 
196
            return lock.cant_unlock_not_held(self)
 
197
        try:
 
198
            self._cleanup()
 
199
            self._lock_count -= 1
 
200
            if self._lock_count > 0:
 
201
                return
 
202
            if self._index_file is not None:
 
203
                if self._index_dirty:
 
204
                    self._flush(self._index_file)
 
205
                    self._index_file.close()
 
206
                else:
 
207
                    # Something else already triggered a write of the index
 
208
                    # file by calling .flush()
 
209
                    self._index_file.abort()
 
210
                self._index_file = None
 
211
            self._lock_mode = None
 
212
            self.index = None
 
213
        finally:
 
214
            self.branch.unlock()
 
215
 
 
216
    def _cleanup(self):
 
217
        pass
 
218
 
 
219
    def _detect_case_handling(self):
 
220
        try:
 
221
            self._transport.stat(".git/cOnFiG")
 
222
        except errors.NoSuchFile:
 
223
            self.case_sensitive = True
 
224
        else:
 
225
            self.case_sensitive = False
 
226
 
 
227
    def merge_modified(self):
 
228
        return {}
 
229
 
 
230
    def set_merge_modified(self, modified_hashes):
 
231
        raise errors.UnsupportedOperation(self.set_merge_modified, self)
 
232
 
 
233
    def set_parent_trees(self, parents_list, allow_leftmost_as_ghost=False):
 
234
        self.set_parent_ids([p for p, t in parents_list])
 
235
 
 
236
    def _set_merges_from_parent_ids(self, rhs_parent_ids):
 
237
        try:
 
238
            merges = [self.branch.lookup_bzr_revision_id(revid)[0] for revid in rhs_parent_ids]
 
239
        except errors.NoSuchRevision as e:
 
240
            raise errors.GhostRevisionUnusableHere(e.revision)
 
241
        if merges:
 
242
            self.control_transport.put_bytes('MERGE_HEAD', b'\n'.join(merges),
 
243
                mode=self.controldir._get_file_mode())
 
244
        else:
 
245
            try:
 
246
                self.control_transport.delete('MERGE_HEAD')
 
247
            except errors.NoSuchFile:
 
248
                pass
 
249
 
 
250
    def set_parent_ids(self, revision_ids, allow_leftmost_as_ghost=False):
 
251
        """Set the parent ids to revision_ids.
 
252
 
 
253
        See also set_parent_trees. This api will try to retrieve the tree data
 
254
        for each element of revision_ids from the trees repository. If you have
 
255
        tree data already available, it is more efficient to use
 
256
        set_parent_trees rather than set_parent_ids. set_parent_ids is however
 
257
        an easier API to use.
 
258
 
 
259
        :param revision_ids: The revision_ids to set as the parent ids of this
 
260
            working tree. Any of these may be ghosts.
 
261
        """
 
262
        with self.lock_tree_write():
 
263
            self._check_parents_for_ghosts(revision_ids,
 
264
                allow_leftmost_as_ghost=allow_leftmost_as_ghost)
 
265
            for revision_id in revision_ids:
 
266
                _mod_revision.check_not_reserved_id(revision_id)
 
267
 
 
268
            revision_ids = self._filter_parent_ids_by_ancestry(revision_ids)
 
269
 
 
270
            if len(revision_ids) > 0:
 
271
                self.set_last_revision(revision_ids[0])
 
272
            else:
 
273
                self.set_last_revision(_mod_revision.NULL_REVISION)
 
274
 
 
275
            self._set_merges_from_parent_ids(revision_ids[1:])
 
276
 
 
277
    def get_parent_ids(self):
 
278
        """See Tree.get_parent_ids.
 
279
 
 
280
        This implementation reads the pending merges list and last_revision
 
281
        value and uses that to decide what the parents list should be.
 
282
        """
 
283
        last_rev = _mod_revision.ensure_null(self._last_revision())
 
284
        if _mod_revision.NULL_REVISION == last_rev:
 
285
            parents = []
 
286
        else:
 
287
            parents = [last_rev]
 
288
        try:
 
289
            merges_bytes = self.control_transport.get_bytes('MERGE_HEAD')
 
290
        except errors.NoSuchFile:
 
291
            pass
 
292
        else:
 
293
            for l in osutils.split_lines(merges_bytes):
 
294
                revision_id = l.rstrip(b'\n')
 
295
                parents.append(self.branch.lookup_foreign_revision_id(revision_id))
 
296
        return parents
 
297
 
 
298
    def check_state(self):
 
299
        """Check that the working state is/isn't valid."""
 
300
        pass
 
301
 
 
302
    def remove(self, files, verbose=False, to_file=None, keep_files=True,
 
303
        force=False):
 
304
        """Remove nominated files from the working tree metadata.
 
305
 
 
306
        :param files: File paths relative to the basedir.
 
307
        :param keep_files: If true, the files will also be kept.
 
308
        :param force: Delete files and directories, even if they are changed
 
309
            and even if the directories are not empty.
 
310
        """
 
311
        if not isinstance(files, list):
 
312
            files = [files]
 
313
 
 
314
        if to_file is None:
 
315
            to_file = sys.stdout
 
316
 
 
317
        def backup(file_to_backup):
 
318
            abs_path = self.abspath(file_to_backup)
 
319
            backup_name = self.controldir._available_backup_name(file_to_backup)
 
320
            osutils.rename(abs_path, self.abspath(backup_name))
 
321
            return "removed %s (but kept a copy: %s)" % (
 
322
                file_to_backup, backup_name)
 
323
 
 
324
        # Sort needed to first handle directory content before the directory
 
325
        files_to_backup = []
 
326
 
 
327
        all_files = set()
 
328
 
 
329
        def recurse_directory_to_add_files(directory):
 
330
            # Recurse directory and add all files
 
331
            # so we can check if they have changed.
 
332
            for parent_info, file_infos in self.walkdirs(directory):
 
333
                for relpath, basename, kind, lstat, fileid, kind in file_infos:
 
334
                    # Is it versioned or ignored?
 
335
                    if self.is_versioned(relpath):
 
336
                        # Add nested content for deletion.
 
337
                        all_files.add(relpath)
 
338
                    else:
 
339
                        # Files which are not versioned
 
340
                        # should be treated as unknown.
 
341
                        files_to_backup.append(relpath)
 
342
 
 
343
        with self.lock_tree_write():
 
344
            for filepath in files:
 
345
                # Get file name into canonical form.
 
346
                abspath = self.abspath(filepath)
 
347
                filepath = self.relpath(abspath)
 
348
 
 
349
                if filepath:
 
350
                    all_files.add(filepath)
 
351
                    recurse_directory_to_add_files(filepath)
 
352
 
 
353
            files = list(all_files)
 
354
 
 
355
            if len(files) == 0:
 
356
                return # nothing to do
 
357
 
 
358
            # Sort needed to first handle directory content before the directory
 
359
            files.sort(reverse=True)
 
360
 
 
361
            # Bail out if we are going to delete files we shouldn't
 
362
            if not keep_files and not force:
 
363
                for (file_id, path, content_change, versioned, parent_id, name,
 
364
                     kind, executable) in self.iter_changes(self.basis_tree(),
 
365
                         include_unchanged=True, require_versioned=False,
 
366
                         want_unversioned=True, specific_files=files):
 
367
                    if versioned[0] == False:
 
368
                        # The record is unknown or newly added
 
369
                        files_to_backup.append(path[1])
 
370
                        files_to_backup.extend(osutils.parent_directories(path[1]))
 
371
                    elif (content_change and (kind[1] is not None) and
 
372
                            osutils.is_inside_any(files, path[1])):
 
373
                        # Versioned and changed, but not deleted, and still
 
374
                        # in one of the dirs to be deleted.
 
375
                        files_to_backup.append(path[1])
 
376
                        files_to_backup.extend(osutils.parent_directories(path[1]))
 
377
 
 
378
            for f in files:
 
379
                if f == '':
 
380
                    continue
 
381
 
 
382
                try:
 
383
                    kind = self.kind(f)
 
384
                except errors.NoSuchFile:
 
385
                    kind = None
 
386
 
 
387
                abs_path = self.abspath(f)
 
388
                if verbose:
 
389
                    # having removed it, it must be either ignored or unknown
 
390
                    if self.is_ignored(f):
 
391
                        new_status = 'I'
 
392
                    else:
 
393
                        new_status = '?'
 
394
                    kind_ch = osutils.kind_marker(kind)
 
395
                    to_file.write(new_status + '       ' + f + kind_ch + '\n')
 
396
                if kind is None:
 
397
                    message = "%s does not exist" % (f, )
 
398
                else:
 
399
                    if not keep_files:
 
400
                        if f in files_to_backup and not force:
 
401
                            message = backup(f)
 
402
                        else:
 
403
                            if kind == 'directory':
 
404
                                osutils.rmtree(abs_path)
 
405
                            else:
 
406
                                osutils.delete_any(abs_path)
 
407
                            message = "deleted %s" % (f,)
 
408
                    else:
 
409
                        message = "removed %s" % (f,)
 
410
                self._unversion_path(f)
 
411
 
 
412
                # print only one message (if any) per file.
 
413
                if message is not None:
 
414
                    trace.note(message)
 
415
            self._versioned_dirs = None
 
416
 
 
417
    def smart_add(self, file_list, recurse=True, action=None, save=True):
 
418
        if not file_list:
 
419
            file_list = [u'.']
 
420
 
 
421
        # expand any symlinks in the directory part, while leaving the
 
422
        # filename alone
 
423
        # only expanding if symlinks are supported avoids windows path bugs
 
424
        if osutils.has_symlinks():
 
425
            file_list = list(map(osutils.normalizepath, file_list))
 
426
 
 
427
        conflicts_related = set()
 
428
        for c in self.conflicts():
 
429
            conflicts_related.update(c.associated_filenames())
 
430
 
 
431
        added = []
 
432
        ignored = {}
 
433
        user_dirs = []
 
434
        def call_action(filepath, kind):
 
435
            if action is not None:
 
436
                parent_path = posixpath.dirname(filepath)
 
437
                parent_id = self.path2id(parent_path)
 
438
                parent_ie = self._get_dir_ie(parent_path, parent_id)
 
439
                file_id = action(self, parent_ie, filepath, kind)
 
440
                if file_id is not None:
 
441
                    raise workingtree.SettingFileIdUnsupported()
 
442
 
 
443
        with self.lock_tree_write():
 
444
            for filepath in osutils.canonical_relpaths(self.basedir, file_list):
 
445
                filepath, can_access = osutils.normalized_filename(filepath)
 
446
                if not can_access:
 
447
                    raise errors.InvalidNormalization(filepath)
 
448
 
 
449
                abspath = self.abspath(filepath)
 
450
                kind = osutils.file_kind(abspath)
 
451
                if kind in ("file", "symlink"):
 
452
                    (index, subpath) = self._lookup_index(filepath.encode('utf-8'))
 
453
                    if subpath in index:
 
454
                        # Already present
 
455
                        continue
 
456
                    call_action(filepath, kind)
 
457
                    if save:
 
458
                        self._index_add_entry(filepath, kind)
 
459
                    added.append(filepath)
 
460
                elif kind == "directory":
 
461
                    (index, subpath) = self._lookup_index(filepath.encode('utf-8'))
 
462
                    if subpath not in index:
 
463
                        call_action(filepath, kind)
 
464
                    if recurse:
 
465
                        user_dirs.append(filepath)
 
466
                else:
 
467
                    raise errors.BadFileKindError(filename=abspath, kind=kind)
 
468
            for user_dir in user_dirs:
 
469
                abs_user_dir = self.abspath(user_dir)
 
470
                if user_dir != '':
 
471
                    try:
 
472
                        transport = _mod_transport.get_transport_from_path(abs_user_dir)
 
473
                        _mod_controldir.ControlDirFormat.find_format(transport)
 
474
                        subtree = True
 
475
                    except errors.NotBranchError:
 
476
                        subtree = False
 
477
                    except errors.UnsupportedFormatError:
 
478
                        subtree = False
 
479
                else:
 
480
                    subtree = False
 
481
                if subtree:
 
482
                    trace.warning('skipping nested tree %r', abs_user_dir)
 
483
                    continue
 
484
 
 
485
                for name in os.listdir(abs_user_dir):
 
486
                    subp = os.path.join(user_dir, name)
 
487
                    if self.is_control_filename(subp) or self.mapping.is_special_file(subp):
 
488
                        continue
 
489
                    ignore_glob = self.is_ignored(subp)
 
490
                    if ignore_glob is not None:
 
491
                        ignored.setdefault(ignore_glob, []).append(subp)
 
492
                        continue
 
493
                    abspath = self.abspath(subp)
 
494
                    kind = osutils.file_kind(abspath)
 
495
                    if kind == "directory":
 
496
                        user_dirs.append(subp)
 
497
                    else:
 
498
                        (index, subpath) = self._lookup_index(subp.encode('utf-8'))
 
499
                        if subpath in index:
 
500
                            # Already present
 
501
                            continue
 
502
                        if subp in conflicts_related:
 
503
                            continue
 
504
                        call_action(filepath, kind)
 
505
                        if save:
 
506
                            self._index_add_entry(subp, kind)
 
507
                        added.append(subp)
 
508
            return added, ignored
 
509
 
 
510
    def has_filename(self, filename):
 
511
        return osutils.lexists(self.abspath(filename))
 
512
 
 
513
    def _iter_files_recursive(self, from_dir=None, include_dirs=False):
 
514
        if from_dir is None:
 
515
            from_dir = u""
 
516
        for (dirpath, dirnames, filenames) in os.walk(self.abspath(from_dir).encode(osutils._fs_enc)):
 
517
            dir_relpath = dirpath[len(self.basedir):].strip(b"/")
 
518
            if self.controldir.is_control_filename(dir_relpath.decode(osutils._fs_enc)):
 
519
                continue
 
520
            for name in list(dirnames):
 
521
                if self.controldir.is_control_filename(name.decode(osutils._fs_enc)):
 
522
                    dirnames.remove(name)
 
523
                    continue
 
524
                relpath = os.path.join(dir_relpath, name)
 
525
                if include_dirs:
 
526
                    try:
 
527
                        yield relpath.decode(osutils._fs_enc)
 
528
                    except UnicodeDecodeError:
 
529
                        raise errors.BadFilenameEncoding(
 
530
                            relpath, osutils._fs_enc)
 
531
                if not self._has_dir(relpath):
 
532
                    dirnames.remove(name)
 
533
            for name in filenames:
 
534
                if not self.mapping.is_special_file(name):
 
535
                    yp = os.path.join(dir_relpath, name)
 
536
                    try:
 
537
                        yield yp.decode(osutils._fs_enc)
 
538
                    except UnicodeDecodeError:
 
539
                        raise errors.BadFilenameEncoding(
 
540
                            yp, osutils._fs_enc)
 
541
 
 
542
    def extras(self):
 
543
        """Yield all unversioned files in this WorkingTree.
 
544
        """
 
545
        with self.lock_read():
 
546
            index_paths = set([p.decode('utf-8') for p, i in self._recurse_index_entries()])
 
547
            all_paths = set(self._iter_files_recursive(include_dirs=True))
 
548
            for p in (all_paths - index_paths):
 
549
                if not self._has_dir(p.encode('utf-8')):
 
550
                    yield p
 
551
 
 
552
    def _gather_kinds(self, files, kinds):
 
553
        """See MutableTree._gather_kinds."""
 
554
        with self.lock_tree_write():
 
555
            for pos, f in enumerate(files):
 
556
                if kinds[pos] is None:
 
557
                    fullpath = osutils.normpath(self.abspath(f))
 
558
                    try:
 
559
                         kind = osutils.file_kind(fullpath)
 
560
                    except OSError as e:
 
561
                        if e.errno == errno.ENOENT:
 
562
                            raise errors.NoSuchFile(fullpath)
 
563
                    if kind == 'directory' and f != '' and os.path.exists(os.path.join(fullpath, '.git')):
 
564
                        kind = 'tree-reference'
 
565
                    kinds[pos] = kind
 
566
 
 
567
    def flush(self):
 
568
        if self._lock_mode != 'w':
 
569
            raise errors.NotWriteLocked(self)
 
570
        # TODO(jelmer): This shouldn't be writing in-place, but index.lock is
 
571
        # already in use and GitFile doesn't allow overriding the lock file name :(
 
572
        f = open(self.control_transport.local_abspath('index'), 'wb')
 
573
        # Note that _flush will close the file
 
574
        self._flush(f)
 
575
 
 
576
    def _flush(self, f):
 
577
        try:
 
578
            shaf = SHA1Writer(f)
 
579
            write_index_dict(shaf, self.index)
 
580
            shaf.close()
 
581
        except:
 
582
            f.abort()
 
583
            raise
 
584
        self._index_dirty = False
 
585
 
 
586
    def has_or_had_id(self, file_id):
 
587
        if self.has_id(file_id):
 
588
            return True
 
589
        if self.had_id(file_id):
 
590
            return True
 
591
        return False
 
592
 
 
593
    def had_id(self, file_id):
 
594
        path = self._basis_fileid_map.lookup_path(file_id)
 
595
        try:
 
596
            head = self.repository._git.head()
 
597
        except KeyError:
 
598
            # Assume no if basis is not accessible
 
599
            return False
 
600
        try:
 
601
            root_tree = self.store[head].tree
 
602
        except KeyError:
 
603
            return False
 
604
        try:
 
605
            tree_lookup_path(self.store.__getitem__, root_tree, path.encode('utf-8'))
 
606
        except KeyError:
 
607
            return False
 
608
        else:
 
609
            return True
 
610
 
 
611
    def get_file_mtime(self, path, file_id=None):
 
612
        """See Tree.get_file_mtime."""
 
613
        try:
 
614
            return self._lstat(path).st_mtime
 
615
        except OSError as e:
 
616
            if e.errno == errno.ENOENT:
 
617
                raise errors.NoSuchFile(path)
 
618
            raise
 
619
 
 
620
    def is_ignored(self, filename):
 
621
        r"""Check whether the filename matches an ignore pattern.
 
622
 
 
623
        If the file is ignored, returns the pattern which caused it to
 
624
        be ignored, otherwise None.  So this can simply be used as a
 
625
        boolean if desired."""
 
626
        if getattr(self, '_global_ignoreglobster', None) is None:
 
627
            ignore_globs = set()
 
628
            ignore_globs.update(ignores.get_runtime_ignores())
 
629
            ignore_globs.update(ignores.get_user_ignores())
 
630
            self._global_ignoreglobster = globbing.ExceptionGlobster(ignore_globs)
 
631
        match = self._global_ignoreglobster.match(filename)
 
632
        if match is not None:
 
633
            return match
 
634
        try:
 
635
            if self.kind(filename) == 'directory':
 
636
                filename += '/'
 
637
        except errors.NoSuchFile:
 
638
            pass
 
639
        filename = filename.lstrip('/')
 
640
        ignore_manager = self._get_ignore_manager()
 
641
        ps = list(ignore_manager.find_matching(filename))
 
642
        if not ps:
 
643
            return None
 
644
        if not ps[-1].is_exclude:
 
645
            return None
 
646
        return bytes(ps[-1])
 
647
 
 
648
    def _get_ignore_manager(self):
 
649
        ignoremanager = getattr(self, '_ignoremanager', None)
 
650
        if ignoremanager is not None:
 
651
            return ignoremanager
 
652
 
 
653
        ignore_manager = IgnoreFilterManager.from_repo(self.repository._git)
 
654
        self._ignoremanager = ignore_manager
 
655
        return ignore_manager
 
656
 
 
657
    def _flush_ignore_list_cache(self):
 
658
        self._ignoremanager = None
 
659
 
 
660
    def set_last_revision(self, revid):
 
661
        if _mod_revision.is_null(revid):
 
662
            self.branch.set_last_revision_info(0, revid)
 
663
            return False
 
664
        _mod_revision.check_not_reserved_id(revid)
 
665
        try:
 
666
            self.branch.generate_revision_history(revid)
 
667
        except errors.NoSuchRevision:
 
668
            raise errors.GhostRevisionUnusableHere(revid)
 
669
 
 
670
    def _reset_data(self):
 
671
        try:
 
672
            head = self.repository._git.head()
 
673
        except KeyError:
 
674
            self._basis_fileid_map = GitFileIdMap({}, self.mapping)
 
675
        else:
 
676
            self._basis_fileid_map = self.mapping.get_fileid_map(
 
677
                self.store.__getitem__, self.store[head].tree)
 
678
        self._fileid_map = self._basis_fileid_map.copy()
 
679
 
 
680
    def get_file_verifier(self, path, file_id=None, stat_value=None):
 
681
        with self.lock_read():
 
682
            (index, subpath) = self._lookup_index(path.encode('utf-8'))
 
683
            try:
 
684
                return ("GIT", index[subpath].sha)
 
685
            except KeyError:
 
686
                if self._has_dir(path):
 
687
                    return ("GIT", None)
 
688
                raise errors.NoSuchFile(path)
 
689
 
 
690
    def get_file_sha1(self, path, file_id=None, stat_value=None):
 
691
        with self.lock_read():
 
692
            if not self.is_versioned(path):
 
693
                raise errors.NoSuchFile(path)
 
694
            abspath = self.abspath(path)
 
695
            try:
 
696
                return osutils.sha_file_by_name(abspath)
 
697
            except OSError as e:
 
698
                if e.errno in (errno.EISDIR, errno.ENOENT):
 
699
                    return None
 
700
                raise
 
701
 
 
702
    def revision_tree(self, revid):
 
703
        return self.repository.revision_tree(revid)
 
704
 
 
705
    def _is_executable_from_path_and_stat_from_stat(self, path, stat_result):
 
706
        mode = stat_result.st_mode
 
707
        return bool(stat.S_ISREG(mode) and stat.S_IEXEC & mode)
 
708
 
 
709
    def _is_executable_from_path_and_stat_from_basis(self, path, stat_result):
 
710
        return self.basis_tree().is_executable(path)
 
711
 
 
712
    def stored_kind(self, path, file_id=None):
 
713
        with self.lock_read():
 
714
            encoded_path = path.encode('utf-8')
 
715
            (index, subpath) = self._lookup_index(encoded_path)
 
716
            try:
 
717
                return mode_kind(index[subpath].mode)
 
718
            except KeyError:
 
719
                # Maybe it's a directory?
 
720
                if self._has_dir(encoded_path):
 
721
                    return "directory"
 
722
                raise errors.NoSuchFile(path)
 
723
 
 
724
    def _lstat(self, path):
 
725
        return os.lstat(self.abspath(path))
 
726
 
 
727
    def _live_entry(self, path):
 
728
        return index_entry_from_path(self.abspath(path.decode('utf-8')).encode(osutils._fs_enc))
 
729
 
 
730
    def is_executable(self, path, file_id=None):
 
731
        with self.lock_read():
 
732
            if getattr(self, "_supports_executable", osutils.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 getattr(self, "_supports_executable", osutils.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(path, stat_result)
 
747
 
 
748
    def list_files(self, include_root=False, from_dir=None, recursive=True):
 
749
        if from_dir is None:
 
750
            from_dir = u""
 
751
        dir_ids = {}
 
752
        fk_entries = {'directory': tree.TreeDirectory,
 
753
                      'file': tree.TreeFile,
 
754
                      'symlink': tree.TreeLink,
 
755
                      'tree-reference': tree.TreeReference}
 
756
        with self.lock_read():
 
757
            root_ie = self._get_dir_ie(u"", None)
 
758
            if include_root and not from_dir:
 
759
                yield "", "V", root_ie.kind, root_ie.file_id, root_ie
 
760
            dir_ids[u""] = root_ie.file_id
 
761
            if recursive:
 
762
                path_iterator = sorted(self._iter_files_recursive(from_dir, include_dirs=True))
 
763
            else:
 
764
                path_iterator = sorted([os.path.join(from_dir, name.decode(osutils._fs_enc)) for name in
 
765
                    os.listdir(self.abspath(from_dir).encode(osutils._fs_enc))
 
766
                    if not self.controldir.is_control_filename(name.decode(osutils._fs_enc))
 
767
                    and not self.mapping.is_special_file(name.decode(osutils._fs_enc))])
 
768
            for path in path_iterator:
 
769
                try:
 
770
                    encoded_path = path.encode("utf-8")
 
771
                except UnicodeEncodeError:
 
772
                    raise errors.BadFilenameEncoding(
 
773
                        path, osutils._fs_enc)
 
774
                (index, index_path) = self._lookup_index(encoded_path)
 
775
                try:
 
776
                    value = index[index_path]
 
777
                except KeyError:
 
778
                    value = None
 
779
                kind = self.kind(path)
 
780
                parent, name = posixpath.split(path)
 
781
                for dir_path, dir_ie in self._add_missing_parent_ids(parent, dir_ids):
 
782
                    pass
 
783
                if kind in ('directory', 'tree-reference'):
 
784
                    if path != from_dir:
 
785
                        if self._has_dir(encoded_path):
 
786
                            ie = self._get_dir_ie(path, self.path2id(path))
 
787
                            status = "V"
 
788
                            file_id = ie.file_id
 
789
                        elif self.is_ignored(path):
 
790
                            status = "I"
 
791
                            ie = fk_entries[kind]()
 
792
                            file_id = None
 
793
                        else:
 
794
                            status = "?"
 
795
                            ie = fk_entries[kind]()
 
796
                            file_id = None
 
797
                        yield posixpath.relpath(path, from_dir), status, kind, file_id, ie
 
798
                    continue
 
799
                if value is not None:
 
800
                    ie = self._get_file_ie(name, path, value, dir_ids[parent])
 
801
                    yield posixpath.relpath(path, from_dir), "V", ie.kind, ie.file_id, ie
 
802
                else:
 
803
                    ie = fk_entries[kind]()
 
804
                    yield posixpath.relpath(path, from_dir), ("I" if self.is_ignored(path) else "?"), kind, None, ie
 
805
 
 
806
    def all_file_ids(self):
 
807
        with self.lock_read():
 
808
            ids = {u"": self.path2id("")}
 
809
            for path in self.index:
 
810
                if self.mapping.is_special_file(path):
 
811
                    continue
 
812
                path = path.decode("utf-8")
 
813
                parent = posixpath.dirname(path).strip("/")
 
814
                for e in self._add_missing_parent_ids(parent, ids):
 
815
                    pass
 
816
                ids[path] = self.path2id(path)
 
817
            return set(ids.values())
 
818
 
 
819
    def all_versioned_paths(self):
 
820
        with self.lock_read():
 
821
            paths = {u""}
 
822
            for path in self.index:
 
823
                if self.mapping.is_special_file(path):
 
824
                    continue
 
825
                path = path.decode("utf-8")
 
826
                paths.add(path)
 
827
                while path != "":
 
828
                    path = posixpath.dirname(path).strip("/")
 
829
                    if path in paths:
 
830
                        break
 
831
                    paths.add(path)
 
832
            return paths
 
833
 
 
834
    def iter_child_entries(self, path, file_id=None):
 
835
        encoded_path = path.encode('utf-8')
 
836
        with self.lock_read():
 
837
            parent_id = self.path2id(path)
 
838
            found_any = False
 
839
            seen_children = set()
 
840
            for item_path, value in self.index.iteritems():
 
841
                decoded_item_path = item_path.decode('utf-8')
 
842
                if self.mapping.is_special_file(item_path):
 
843
                    continue
 
844
                if not osutils.is_inside(path, decoded_item_path):
 
845
                    continue
 
846
                found_any = True
 
847
                subpath = posixpath.relpath(decoded_item_path, path)
 
848
                if '/' in subpath:
 
849
                    dirname = subpath.split('/', 1)[0]
 
850
                    file_ie = self._get_dir_ie(posixpath.join(path, dirname), parent_id)
 
851
                else:
 
852
                    (unused_parent, name) = posixpath.split(decoded_item_path)
 
853
                    file_ie = self._get_file_ie(
 
854
                        name, decoded_item_path, value, parent_id)
 
855
                yield file_ie
 
856
            if not found_any and path != u'':
 
857
                raise errors.NoSuchFile(path)
 
858
 
 
859
    def conflicts(self):
 
860
        with self.lock_read():
 
861
            conflicts = _mod_conflicts.ConflictList()
 
862
            for item_path, value in self.index.iteritems():
 
863
                if value.flags & FLAG_STAGEMASK:
 
864
                    conflicts.append(_mod_conflicts.TextConflict(item_path.decode('utf-8')))
 
865
            return conflicts
 
866
 
 
867
    def set_conflicts(self, conflicts):
 
868
        by_path = set()
 
869
        for conflict in conflicts:
 
870
            if conflict.typestring in ('text conflict', 'contents conflict'):
 
871
                by_path.add(conflict.path.encode('utf-8'))
 
872
            else:
 
873
                raise errors.UnsupportedOperation(self.set_conflicts, self)
 
874
        with self.lock_tree_write():
 
875
            for path in self.index:
 
876
                self._set_conflicted(path, path in by_path)
 
877
 
 
878
    def _set_conflicted(self, path, conflicted):
 
879
        trace.mutter('change conflict: %r -> %r', path, conflicted)
 
880
        value = self.index[path]
 
881
        self._index_dirty = True
 
882
        if conflicted:
 
883
            self.index[path] = (value[:9] + (value[9] | FLAG_STAGEMASK, ))
 
884
        else:
 
885
            self.index[path] = (value[:9] + (value[9] &~ FLAG_STAGEMASK, ))
 
886
 
 
887
    def add_conflicts(self, new_conflicts):
 
888
        with self.lock_tree_write():
 
889
            for conflict in new_conflicts:
 
890
                if conflict.typestring in ('text conflict', 'contents conflict'):
 
891
                    try:
 
892
                        self._set_conflicted(conflict.path.encode('utf-8'), True)
 
893
                    except KeyError:
 
894
                        raise errors.UnsupportedOperation(self.add_conflicts, self)
 
895
                else:
 
896
                    raise errors.UnsupportedOperation(self.add_conflicts, self)
 
897
 
 
898
    def walkdirs(self, prefix=""):
 
899
        """Walk the directories of this tree.
 
900
 
 
901
        returns a generator which yields items in the form:
 
902
                ((curren_directory_path, fileid),
 
903
                 [(file1_path, file1_name, file1_kind, (lstat), file1_id,
 
904
                   file1_kind), ... ])
 
905
 
 
906
        This API returns a generator, which is only valid during the current
 
907
        tree transaction - within a single lock_read or lock_write duration.
 
908
 
 
909
        If the tree is not locked, it may cause an error to be raised,
 
910
        depending on the tree implementation.
 
911
        """
 
912
        from bisect import bisect_left
 
913
        import operator
 
914
        disk_top = self.abspath(prefix)
 
915
        if disk_top.endswith('/'):
 
916
            disk_top = disk_top[:-1]
 
917
        top_strip_len = len(disk_top) + 1
 
918
        inventory_iterator = self._walkdirs(prefix)
 
919
        disk_iterator = osutils.walkdirs(disk_top, prefix)
 
920
        try:
 
921
            current_disk = next(disk_iterator)
 
922
            disk_finished = False
 
923
        except OSError as e:
 
924
            if not (e.errno == errno.ENOENT or
 
925
                (sys.platform == 'win32' and e.errno == ERROR_PATH_NOT_FOUND)):
 
926
                raise
 
927
            current_disk = None
 
928
            disk_finished = True
 
929
        try:
 
930
            current_inv = next(inventory_iterator)
 
931
            inv_finished = False
 
932
        except StopIteration:
 
933
            current_inv = None
 
934
            inv_finished = True
 
935
        while not inv_finished or not disk_finished:
 
936
            if current_disk:
 
937
                ((cur_disk_dir_relpath, cur_disk_dir_path_from_top),
 
938
                    cur_disk_dir_content) = current_disk
 
939
            else:
 
940
                ((cur_disk_dir_relpath, cur_disk_dir_path_from_top),
 
941
                    cur_disk_dir_content) = ((None, None), None)
 
942
            if not disk_finished:
 
943
                # strip out .bzr dirs
 
944
                if (cur_disk_dir_path_from_top[top_strip_len:] == '' and
 
945
                    len(cur_disk_dir_content) > 0):
 
946
                    # osutils.walkdirs can be made nicer -
 
947
                    # yield the path-from-prefix rather than the pathjoined
 
948
                    # value.
 
949
                    bzrdir_loc = bisect_left(cur_disk_dir_content,
 
950
                        ('.git', '.git'))
 
951
                    if (bzrdir_loc < len(cur_disk_dir_content)
 
952
                        and self.controldir.is_control_filename(
 
953
                            cur_disk_dir_content[bzrdir_loc][0])):
 
954
                        # we dont yield the contents of, or, .bzr itself.
 
955
                        del cur_disk_dir_content[bzrdir_loc]
 
956
            if inv_finished:
 
957
                # everything is unknown
 
958
                direction = 1
 
959
            elif disk_finished:
 
960
                # everything is missing
 
961
                direction = -1
 
962
            else:
 
963
                direction = ((current_inv[0][0] > cur_disk_dir_relpath) -
 
964
                             (current_inv[0][0] < cur_disk_dir_relpath))
 
965
            if direction > 0:
 
966
                # disk is before inventory - unknown
 
967
                dirblock = [(relpath, basename, kind, stat, None, None) for
 
968
                    relpath, basename, kind, stat, top_path in
 
969
                    cur_disk_dir_content]
 
970
                yield (cur_disk_dir_relpath, None), dirblock
 
971
                try:
 
972
                    current_disk = next(disk_iterator)
 
973
                except StopIteration:
 
974
                    disk_finished = True
 
975
            elif direction < 0:
 
976
                # inventory is before disk - missing.
 
977
                dirblock = [(relpath, basename, 'unknown', None, fileid, kind)
 
978
                    for relpath, basename, dkind, stat, fileid, kind in
 
979
                    current_inv[1]]
 
980
                yield (current_inv[0][0], current_inv[0][1]), dirblock
 
981
                try:
 
982
                    current_inv = next(inventory_iterator)
 
983
                except StopIteration:
 
984
                    inv_finished = True
 
985
            else:
 
986
                # versioned present directory
 
987
                # merge the inventory and disk data together
 
988
                dirblock = []
 
989
                for relpath, subiterator in itertools.groupby(sorted(
 
990
                    current_inv[1] + cur_disk_dir_content,
 
991
                    key=operator.itemgetter(0)), operator.itemgetter(1)):
 
992
                    path_elements = list(subiterator)
 
993
                    if len(path_elements) == 2:
 
994
                        inv_row, disk_row = path_elements
 
995
                        # versioned, present file
 
996
                        dirblock.append((inv_row[0],
 
997
                            inv_row[1], disk_row[2],
 
998
                            disk_row[3], inv_row[4],
 
999
                            inv_row[5]))
 
1000
                    elif len(path_elements[0]) == 5:
 
1001
                        # unknown disk file
 
1002
                        dirblock.append((path_elements[0][0],
 
1003
                            path_elements[0][1], path_elements[0][2],
 
1004
                            path_elements[0][3], None, None))
 
1005
                    elif len(path_elements[0]) == 6:
 
1006
                        # versioned, absent file.
 
1007
                        dirblock.append((path_elements[0][0],
 
1008
                            path_elements[0][1], 'unknown', None,
 
1009
                            path_elements[0][4], path_elements[0][5]))
 
1010
                    else:
 
1011
                        raise NotImplementedError('unreachable code')
 
1012
                yield current_inv[0], dirblock
 
1013
                try:
 
1014
                    current_inv = next(inventory_iterator)
 
1015
                except StopIteration:
 
1016
                    inv_finished = True
 
1017
                try:
 
1018
                    current_disk = next(disk_iterator)
 
1019
                except StopIteration:
 
1020
                    disk_finished = True
 
1021
 
 
1022
    def _walkdirs(self, prefix=u""):
 
1023
        if prefix != u"":
 
1024
            prefix += u"/"
 
1025
        prefix = prefix.encode('utf-8')
 
1026
        per_dir = defaultdict(set)
 
1027
        if prefix == b"":
 
1028
            per_dir[(u'', self.get_root_id())] = set()
 
1029
        def add_entry(path, kind):
 
1030
            if path == b'' or not path.startswith(prefix):
 
1031
                return
 
1032
            (dirname, child_name) = posixpath.split(path)
 
1033
            add_entry(dirname, 'directory')
 
1034
            dirname = dirname.decode("utf-8")
 
1035
            dir_file_id = self.path2id(dirname)
 
1036
            if not isinstance(value, tuple) or len(value) != 10:
 
1037
                raise ValueError(value)
 
1038
            per_dir[(dirname, dir_file_id)].add(
 
1039
                (path.decode("utf-8"), child_name.decode("utf-8"),
 
1040
                kind, None,
 
1041
                self.path2id(path.decode("utf-8")),
 
1042
                kind))
 
1043
        with self.lock_read():
 
1044
            for path, value in self.index.iteritems():
 
1045
                if self.mapping.is_special_file(path):
 
1046
                    continue
 
1047
                if not path.startswith(prefix):
 
1048
                    continue
 
1049
                add_entry(path, mode_kind(value.mode))
 
1050
        return ((k, sorted(v)) for (k, v) in sorted(per_dir.items()))
 
1051
 
 
1052
    def get_shelf_manager(self):
 
1053
        raise workingtree.ShelvingUnsupported()
 
1054
 
 
1055
    def store_uncommitted(self):
 
1056
        raise errors.StoringUncommittedNotSupported(self)
 
1057
 
 
1058
    def apply_inventory_delta(self, changes):
 
1059
        for (old_path, new_path, file_id, ie) in changes:
 
1060
            if old_path is not None:
 
1061
                (index, old_subpath) = self._lookup_index(old_path.encode('utf-8'))
 
1062
                try:
 
1063
                    self._index_del_entry(index, old_subpath)
 
1064
                except KeyError:
 
1065
                    pass
 
1066
                else:
 
1067
                    self._versioned_dirs = None
 
1068
            if new_path is not None and ie.kind != 'directory':
 
1069
                if ie.kind == 'tree-reference':
 
1070
                    self._index_add_entry(
 
1071
                            new_path, ie.kind,
 
1072
                            reference_revision=ie.reference_revision)
 
1073
                else:
 
1074
                    self._index_add_entry(new_path, ie.kind)
 
1075
        self.flush()
 
1076
 
 
1077
    def annotate_iter(self, path, file_id=None,
 
1078
                      default_revision=_mod_revision.CURRENT_REVISION):
 
1079
        """See Tree.annotate_iter
 
1080
 
 
1081
        This implementation will use the basis tree implementation if possible.
 
1082
        Lines not in the basis are attributed to CURRENT_REVISION
 
1083
 
 
1084
        If there are pending merges, lines added by those merges will be
 
1085
        incorrectly attributed to CURRENT_REVISION (but after committing, the
 
1086
        attribution will be correct).
 
1087
        """
 
1088
        with self.lock_read():
 
1089
            maybe_file_parent_keys = []
 
1090
            for parent_id in self.get_parent_ids():
 
1091
                try:
 
1092
                    parent_tree = self.revision_tree(parent_id)
 
1093
                except errors.NoSuchRevisionInTree:
 
1094
                    parent_tree = self.branch.repository.revision_tree(
 
1095
                            parent_id)
 
1096
                with parent_tree.lock_read():
 
1097
                    # TODO(jelmer): Use rename/copy tracker to find path name in parent
 
1098
                    parent_path = path
 
1099
                    try:
 
1100
                        kind = parent_tree.kind(parent_path)
 
1101
                    except errors.NoSuchFile:
 
1102
                        continue
 
1103
                    if kind != 'file':
 
1104
                        # Note: this is slightly unnecessary, because symlinks and
 
1105
                        # directories have a "text" which is the empty text, and we
 
1106
                        # know that won't mess up annotations. But it seems cleaner
 
1107
                        continue
 
1108
                    parent_text_key = (
 
1109
                        parent_path,
 
1110
                        parent_tree.get_file_revision(parent_path))
 
1111
                    if parent_text_key not in maybe_file_parent_keys:
 
1112
                        maybe_file_parent_keys.append(parent_text_key)
 
1113
            # Now we have the parents of this content
 
1114
            from breezy.annotate import Annotator
 
1115
            from .annotate import AnnotateProvider
 
1116
            annotate_provider = AnnotateProvider(
 
1117
                self.branch.repository._file_change_scanner)
 
1118
            annotator = Annotator(annotate_provider)
 
1119
 
 
1120
            from breezy.graph import Graph
 
1121
            graph = Graph(annotate_provider)
 
1122
            heads = graph.heads(maybe_file_parent_keys)
 
1123
            file_parent_keys = []
 
1124
            for key in maybe_file_parent_keys:
 
1125
                if key in heads:
 
1126
                    file_parent_keys.append(key)
 
1127
 
 
1128
            text = self.get_file_text(path)
 
1129
            this_key = (path, default_revision)
 
1130
            annotator.add_special_text(this_key, file_parent_keys, text)
 
1131
            annotations = [(key[-1], line)
 
1132
                           for key, line in annotator.annotate_flat(this_key)]
 
1133
            return annotations
 
1134
 
 
1135
    def _rename_one(self, from_rel, to_rel):
 
1136
        os.rename(self.abspath(from_rel), self.abspath(to_rel))
 
1137
 
 
1138
    def _build_checkout_with_index(self):
 
1139
        build_index_from_tree(
 
1140
            self.user_transport.local_abspath('.'),
 
1141
            self.control_transport.local_abspath("index"),
 
1142
            self.store,
 
1143
            None if self.branch.head is None else self.store[self.branch.head].tree)
 
1144
 
 
1145
    def reset_state(self, revision_ids=None):
 
1146
        """Reset the state of the working tree.
 
1147
 
 
1148
        This does a hard-reset to a last-known-good state. This is a way to
 
1149
        fix if something got corrupted (like the .git/index file)
 
1150
        """
 
1151
        with self.lock_tree_write():
 
1152
            if revision_ids is not None:
 
1153
                self.set_parent_ids(revision_ids)
 
1154
            self.index.clear()
 
1155
            self._index_dirty = True
 
1156
            if self.branch.head is not None:
 
1157
                for entry in self.store.iter_tree_contents(self.store[self.branch.head].tree):
 
1158
                    if not validate_path(entry.path):
 
1159
                        continue
 
1160
 
 
1161
                    if S_ISGITLINK(entry.mode):
 
1162
                        pass # TODO(jelmer): record and return submodule paths
 
1163
                    else:
 
1164
                        # Let's at least try to use the working tree file:
 
1165
                        try:
 
1166
                            st = self._lstat(self.abspath(entry.path.decode('utf-8')))
 
1167
                        except OSError:
 
1168
                            # But if it doesn't exist, we'll make something up.
 
1169
                            obj = self.store[entry.sha]
 
1170
                            st = os.stat_result((entry.mode, 0, 0, 0,
 
1171
                                  0, 0, len(obj.as_raw_string()), 0,
 
1172
                                  0, 0))
 
1173
                    (index, subpath) = self._lookup_index(entry.path)
 
1174
                    index[subpath] = index_entry_from_stat(st, entry.sha, 0)
 
1175
 
 
1176
    def pull(self, source, overwrite=False, stop_revision=None,
 
1177
             change_reporter=None, possible_transports=None, local=False,
 
1178
             show_base=False):
 
1179
        with self.lock_write(), source.lock_read():
 
1180
            old_revision = self.branch.last_revision()
 
1181
            basis_tree = self.basis_tree()
 
1182
            count = self.branch.pull(source, overwrite, stop_revision,
 
1183
                                     possible_transports=possible_transports,
 
1184
                                     local=local)
 
1185
            new_revision = self.branch.last_revision()
 
1186
            if new_revision != old_revision:
 
1187
                with basis_tree.lock_read():
 
1188
                    new_basis_tree = self.branch.basis_tree()
 
1189
                    merge.merge_inner(
 
1190
                                self.branch,
 
1191
                                new_basis_tree,
 
1192
                                basis_tree,
 
1193
                                this_tree=self,
 
1194
                                change_reporter=change_reporter,
 
1195
                                show_base=show_base)
 
1196
            return count
 
1197
 
 
1198
    def add_reference(self, sub_tree):
 
1199
        """Add a TreeReference to the tree, pointing at sub_tree.
 
1200
 
 
1201
        :param sub_tree: subtree to add.
 
1202
        """
 
1203
        with self.lock_tree_write():
 
1204
            try:
 
1205
                sub_tree_path = self.relpath(sub_tree.basedir)
 
1206
            except errors.PathNotChild:
 
1207
                raise BadReferenceTarget(
 
1208
                        self, sub_tree, 'Target not inside tree.')
 
1209
 
 
1210
            self._add([sub_tree_path], [None], ['tree-reference'])
 
1211
 
 
1212
    def _read_submodule_head(self, path):
 
1213
        return read_submodule_head(self.abspath(path))
 
1214
 
 
1215
    def get_reference_revision(self, path, file_id=None):
 
1216
        hexsha = self._read_submodule_head(path)
 
1217
        if hexsha is None:
 
1218
            return _mod_revision.NULL_REVISION
 
1219
        return self.branch.lookup_foreign_revision_id(hexsha)
 
1220
 
 
1221
    def get_nested_tree(self, path, file_id=None):
 
1222
        return workingtree.WorkingTree.open(self.abspath(path))
 
1223
 
 
1224
    def _directory_is_tree_reference(self, relpath):
 
1225
        # as a special case, if a directory contains control files then
 
1226
        # it's a tree reference, except that the root of the tree is not
 
1227
        return relpath and osutils.lexists(self.abspath(relpath) + u"/.git")
 
1228
 
 
1229
    def extract(self, sub_path, file_id=None, format=None):
 
1230
        """Extract a subtree from this tree.
 
1231
 
 
1232
        A new branch will be created, relative to the path for this tree.
 
1233
        """
 
1234
        def mkdirs(path):
 
1235
            segments = osutils.splitpath(path)
 
1236
            transport = self.branch.controldir.root_transport
 
1237
            for name in segments:
 
1238
                transport = transport.clone(name)
 
1239
                transport.ensure_base()
 
1240
            return transport
 
1241
 
 
1242
        with self.lock_tree_write():
 
1243
            self.flush()
 
1244
            branch_transport = mkdirs(sub_path)
 
1245
            if format is None:
 
1246
                format = self.controldir.cloning_metadir()
 
1247
            branch_transport.ensure_base()
 
1248
            branch_bzrdir = format.initialize_on_transport(branch_transport)
 
1249
            try:
 
1250
                repo = branch_bzrdir.find_repository()
 
1251
            except errors.NoRepositoryPresent:
 
1252
                repo = branch_bzrdir.create_repository()
 
1253
            if not repo.supports_rich_root():
 
1254
                raise errors.RootNotRich()
 
1255
            new_branch = branch_bzrdir.create_branch()
 
1256
            new_branch.pull(self.branch)
 
1257
            for parent_id in self.get_parent_ids():
 
1258
                new_branch.fetch(self.branch, parent_id)
 
1259
            tree_transport = self.controldir.root_transport.clone(sub_path)
 
1260
            if tree_transport.base != branch_transport.base:
 
1261
                tree_bzrdir = format.initialize_on_transport(tree_transport)
 
1262
                tree_bzrdir.set_branch_reference(new_branch)
 
1263
            else:
 
1264
                tree_bzrdir = branch_bzrdir
 
1265
            wt = tree_bzrdir.create_workingtree(_mod_revision.NULL_REVISION)
 
1266
            wt.set_parent_ids(self.get_parent_ids())
 
1267
            return wt
 
1268
 
 
1269
    def _get_check_refs(self):
 
1270
        """Return the references needed to perform a check of this tree.
 
1271
 
 
1272
        The default implementation returns no refs, and is only suitable for
 
1273
        trees that have no local caching and can commit on ghosts at any time.
 
1274
 
 
1275
        :seealso: breezy.check for details about check_refs.
 
1276
        """
 
1277
        return []
 
1278
 
 
1279
    def copy_content_into(self, tree, revision_id=None):
 
1280
        """Copy the current content and user files of this tree into tree."""
 
1281
        with self.lock_read():
 
1282
            if revision_id is None:
 
1283
                merge.transform_tree(tree, self)
 
1284
            else:
 
1285
                # TODO now merge from tree.last_revision to revision (to
 
1286
                # preserve user local changes)
 
1287
                try:
 
1288
                    other_tree = self.revision_tree(revision_id)
 
1289
                except errors.NoSuchRevision:
 
1290
                    other_tree = self.branch.repository.revision_tree(
 
1291
                            revision_id)
 
1292
 
 
1293
                merge.transform_tree(tree, other_tree)
 
1294
                if revision_id == _mod_revision.NULL_REVISION:
 
1295
                    new_parents = []
 
1296
                else:
 
1297
                    new_parents = [revision_id]
 
1298
                tree.set_parent_ids(new_parents)
 
1299
 
 
1300
 
 
1301
class GitWorkingTreeFormat(workingtree.WorkingTreeFormat):
 
1302
 
 
1303
    _tree_class = GitWorkingTree
 
1304
 
 
1305
    supports_versioned_directories = False
 
1306
 
 
1307
    supports_setting_file_ids = False
 
1308
 
 
1309
    supports_store_uncommitted = False
 
1310
 
 
1311
    supports_leftmost_parent_id_as_ghost = False
 
1312
 
 
1313
    supports_righthand_parent_id_as_ghost = False
 
1314
 
 
1315
    requires_normalized_unicode_filenames = True
 
1316
 
 
1317
    supports_merge_modified = False
 
1318
 
 
1319
    @property
 
1320
    def _matchingcontroldir(self):
 
1321
        from .dir import LocalGitControlDirFormat
 
1322
        return LocalGitControlDirFormat()
 
1323
 
 
1324
    def get_format_description(self):
 
1325
        return "Git Working Tree"
 
1326
 
 
1327
    def initialize(self, a_controldir, revision_id=None, from_branch=None,
 
1328
                   accelerator_tree=None, hardlink=False):
 
1329
        """See WorkingTreeFormat.initialize()."""
 
1330
        if not isinstance(a_controldir, LocalGitDir):
 
1331
            raise errors.IncompatibleFormat(self, a_controldir)
 
1332
        branch = a_controldir.open_branch(nascent_ok=True)
 
1333
        if revision_id is not None:
 
1334
            branch.set_last_revision(revision_id)
 
1335
        wt = GitWorkingTree(
 
1336
                a_controldir, a_controldir.open_repository(), branch)
 
1337
        for hook in MutableTree.hooks['post_build_tree']:
 
1338
            hook(wt)
 
1339
        return wt