486
390
def new_contents(self, trans_id):
487
391
return (trans_id in self._new_contents)
489
def find_conflicts(self):
393
def find_raw_conflicts(self):
490
394
"""Find any violations of inventory or filesystem invariants"""
491
if self._done is True:
492
raise ReusingTransform()
494
# ensure all children of all existent parents are known
495
# all children of non-existent parents are known, by definition.
496
self._add_tree_children()
497
by_parent = self.by_parent()
498
conflicts.extend(self._unversioned_parents(by_parent))
499
conflicts.extend(self._parent_loops())
500
conflicts.extend(self._duplicate_entries(by_parent))
501
conflicts.extend(self._duplicate_ids())
502
conflicts.extend(self._parent_type_conflicts(by_parent))
503
conflicts.extend(self._improper_versioning())
504
conflicts.extend(self._executability_conflicts())
505
conflicts.extend(self._overwrite_conflicts())
508
def _check_malformed(self):
509
conflicts = self.find_conflicts()
510
if len(conflicts) != 0:
511
raise MalformedTransform(conflicts=conflicts)
513
def _add_tree_children(self):
514
"""Add all the children of all active parents to the known paths.
516
Active parents are those which gain children, and those which are
517
removed. This is a necessary first step in detecting conflicts.
519
parents = self.by_parent().keys()
520
parents.extend([t for t in self._removed_contents if
521
self.tree_kind(t) == 'directory'])
522
for trans_id in self._removed_id:
523
file_id = self.tree_file_id(trans_id)
524
if file_id is not None:
525
if self._tree.inventory[file_id].kind == 'directory':
526
parents.append(trans_id)
527
elif self.tree_kind(trans_id) == 'directory':
528
parents.append(trans_id)
530
for parent_id in parents:
531
# ensure that all children are registered with the transaction
532
list(self.iter_tree_children(parent_id))
534
def has_named_child(self, by_parent, parent_id, name):
536
children = by_parent[parent_id]
539
for child in children:
540
if self.final_name(child) == name:
543
path = self._tree_id_paths[parent_id]
546
childpath = joinpath(path, name)
547
child_id = self._tree_path_ids.get(childpath)
549
return lexists(self._tree.abspath(childpath))
551
if self.final_parent(child_id) != parent_id:
553
if child_id in self._removed_contents:
554
# XXX What about dangling file-ids?
559
def _parent_loops(self):
560
"""No entry should be its own ancestor"""
562
for trans_id in self._new_parent:
565
while parent_id is not ROOT_PARENT:
568
parent_id = self.final_parent(parent_id)
571
if parent_id == trans_id:
572
conflicts.append(('parent loop', trans_id))
573
if parent_id in seen:
577
def _unversioned_parents(self, by_parent):
578
"""If parent directories are versioned, children must be versioned."""
580
for parent_id, children in by_parent.iteritems():
581
if parent_id is ROOT_PARENT:
583
if self.final_file_id(parent_id) is not None:
585
for child_id in children:
586
if self.final_file_id(child_id) is not None:
587
conflicts.append(('unversioned parent', parent_id))
591
def _improper_versioning(self):
592
"""Cannot version a file with no contents, or a bad type.
594
However, existing entries with no contents are okay.
597
for trans_id in self._new_id.iterkeys():
599
kind = self.final_kind(trans_id)
601
conflicts.append(('versioning no contents', trans_id))
603
if not InventoryEntry.versionable_kind(kind):
604
conflicts.append(('versioning bad kind', trans_id, kind))
607
def _executability_conflicts(self):
608
"""Check for bad executability changes.
610
Only versioned files may have their executability set, because
611
1. only versioned entries can have executability under windows
612
2. only files can be executable. (The execute bit on a directory
613
does not indicate searchability)
616
for trans_id in self._new_executability:
617
if self.final_file_id(trans_id) is None:
618
conflicts.append(('unversioned executability', trans_id))
621
non_file = self.final_kind(trans_id) != "file"
625
conflicts.append(('non-file executability', trans_id))
628
def _overwrite_conflicts(self):
629
"""Check for overwrites (not permitted on Win32)"""
631
for trans_id in self._new_contents:
633
self.tree_kind(trans_id)
636
if trans_id not in self._removed_contents:
637
conflicts.append(('overwrite', trans_id,
638
self.final_name(trans_id)))
641
def _duplicate_entries(self, by_parent):
642
"""No directory may have two entries with the same name."""
644
if (self._new_name, self._new_parent) == ({}, {}):
646
for children in by_parent.itervalues():
647
name_ids = [(self.final_name(t), t) for t in children]
648
if not self._case_sensitive_target:
649
name_ids = [(n.lower(), t) for n, t in name_ids]
653
for name, trans_id in name_ids:
655
kind = self.final_kind(trans_id)
658
file_id = self.final_file_id(trans_id)
659
if kind is None and file_id is None:
661
if name == last_name:
662
conflicts.append(('duplicate', last_trans_id, trans_id,
665
last_trans_id = trans_id
668
def _duplicate_ids(self):
669
"""Each inventory id may only be used once"""
671
removed_tree_ids = set((self.tree_file_id(trans_id) for trans_id in
673
all_ids = self._tree.all_file_ids()
674
active_tree_ids = all_ids.difference(removed_tree_ids)
675
for trans_id, file_id in self._new_id.iteritems():
676
if file_id in active_tree_ids:
677
old_trans_id = self.trans_id_tree_file_id(file_id)
678
conflicts.append(('duplicate id', old_trans_id, trans_id))
681
def _parent_type_conflicts(self, by_parent):
682
"""parents must have directory 'contents'."""
684
for parent_id, children in by_parent.iteritems():
685
if parent_id is ROOT_PARENT:
687
if not self._any_contents(children):
689
for child in children:
691
self.final_kind(child)
695
kind = self.final_kind(parent_id)
699
conflicts.append(('missing parent', parent_id))
700
elif kind != "directory":
701
conflicts.append(('non-directory parent', parent_id))
704
def _any_contents(self, trans_ids):
705
"""Return true if any of the trans_ids, will have contents."""
706
for trans_id in trans_ids:
708
kind = self.final_kind(trans_id)
714
def _set_executability(self, path, trans_id):
715
"""Set the executability of versioned files """
716
if supports_executable():
717
new_executability = self._new_executability[trans_id]
718
abspath = self._tree.abspath(path)
719
current_mode = os.stat(abspath).st_mode
720
if new_executability:
723
to_mode = current_mode | (0100 & ~umask)
724
# Enable x-bit for others only if they can read it.
725
if current_mode & 0004:
726
to_mode |= 0001 & ~umask
727
if current_mode & 0040:
728
to_mode |= 0010 & ~umask
730
to_mode = current_mode & ~0111
731
os.chmod(abspath, to_mode)
733
def _new_entry(self, name, parent_id, file_id):
734
"""Helper function to create a new filesystem entry."""
735
trans_id = self.create_path(name, parent_id)
736
if file_id is not None:
737
self.version_file(file_id, trans_id)
395
raise NotImplementedError(self.find_raw_conflicts)
740
397
def new_file(self, name, parent_id, contents, file_id=None,
398
executable=None, sha1=None):
742
399
"""Convenience method to create files.
744
401
name is the name of the file to create.
925
456
The tree is a snapshot, and altering the TreeTransform will invalidate
928
return _PreviewTree(self)
459
raise NotImplementedError(self.get_preview_tree)
930
def commit(self, branch, message, merge_parents=None, strict=False):
461
def commit(self, branch, message, merge_parents=None, strict=False,
462
timestamp=None, timezone=None, committer=None, authors=None,
463
revprops=None, revision_id=None):
931
464
"""Commit the result of this TreeTransform to a branch.
933
466
:param branch: The branch to commit to.
934
467
:param message: The message to attach to the commit.
935
:param merge_parents: Additional parents specified by pending merges.
468
:param merge_parents: Additional parent revision-ids specified by
470
:param strict: If True, abort the commit if there are unversioned
472
:param timestamp: if not None, seconds-since-epoch for the time and
473
date. (May be a float.)
474
:param timezone: Optional timezone for timestamp, as an offset in
476
:param committer: Optional committer in email-id format.
477
(e.g. "J Random Hacker <jrandom@example.com>")
478
:param authors: Optional list of authors in email-id format.
479
:param revprops: Optional dictionary of revision properties.
480
:param revision_id: Optional revision id. (Specifying a revision-id
481
may reduce performance for some non-native formats.)
936
482
:return: The revision_id of the revision committed.
938
self._check_malformed()
940
unversioned = set(self._new_contents).difference(set(self._new_id))
941
for trans_id in unversioned:
942
if self.final_file_id(trans_id) is None:
943
raise errors.StrictCommitFailed()
945
revno, last_rev_id = branch.last_revision_info()
946
if last_rev_id == _mod_revision.NULL_REVISION:
947
if merge_parents is not None:
948
raise ValueError('Cannot supply merge parents for first'
952
parent_ids = [last_rev_id]
953
if merge_parents is not None:
954
parent_ids.extend(merge_parents)
955
if self._tree.get_revision_id() != last_rev_id:
956
raise ValueError('TreeTransform not based on branch basis: %s' %
957
self._tree.get_revision_id())
958
builder = branch.get_commit_builder(parent_ids)
959
preview = self.get_preview_tree()
960
list(builder.record_iter_changes(preview, last_rev_id,
961
self.iter_changes()))
962
builder.finish_inventory()
963
revision_id = builder.commit(message)
964
branch.set_last_revision_info(revno + 1, revision_id)
967
def _text_parent(self, trans_id):
968
file_id = self.tree_file_id(trans_id)
970
if file_id is None or self._tree.kind(file_id) != 'file':
972
except errors.NoSuchFile:
976
def _get_parents_texts(self, trans_id):
977
"""Get texts for compression parents of this file."""
978
file_id = self._text_parent(trans_id)
981
return (self._tree.get_file_text(file_id),)
983
def _get_parents_lines(self, trans_id):
984
"""Get lines for compression parents of this file."""
985
file_id = self._text_parent(trans_id)
988
return (self._tree.get_file_lines(file_id),)
990
def serialize(self, serializer):
991
"""Serialize this TreeTransform.
993
:param serializer: A Serialiser like pack.ContainerSerializer.
995
new_name = dict((k, v.encode('utf-8')) for k, v in
996
self._new_name.items())
997
new_executability = dict((k, int(v)) for k, v in
998
self._new_executability.items())
999
tree_path_ids = dict((k.encode('utf-8'), v)
1000
for k, v in self._tree_path_ids.items())
1002
'_id_number': self._id_number,
1003
'_new_name': new_name,
1004
'_new_parent': self._new_parent,
1005
'_new_executability': new_executability,
1006
'_new_id': self._new_id,
1007
'_tree_path_ids': tree_path_ids,
1008
'_removed_id': list(self._removed_id),
1009
'_removed_contents': list(self._removed_contents),
1010
'_non_present_ids': self._non_present_ids,
1012
yield serializer.bytes_record(bencode.bencode(attribs),
1014
for trans_id, kind in self._new_contents.items():
1016
lines = osutils.chunks_to_lines(
1017
self._read_file_chunks(trans_id))
1018
parents = self._get_parents_lines(trans_id)
1019
mpdiff = multiparent.MultiParent.from_lines(lines, parents)
1020
content = ''.join(mpdiff.to_patch())
1021
if kind == 'directory':
1023
if kind == 'symlink':
1024
content = self._read_symlink_target(trans_id)
1025
yield serializer.bytes_record(content, ((trans_id, kind),))
1027
def deserialize(self, records):
1028
"""Deserialize a stored TreeTransform.
1030
:param records: An iterable of (names, content) tuples, as per
1031
pack.ContainerPushParser.
1033
names, content = records.next()
1034
attribs = bencode.bdecode(content)
1035
self._id_number = attribs['_id_number']
1036
self._new_name = dict((k, v.decode('utf-8'))
1037
for k, v in attribs['_new_name'].items())
1038
self._new_parent = attribs['_new_parent']
1039
self._new_executability = dict((k, bool(v)) for k, v in
1040
attribs['_new_executability'].items())
1041
self._new_id = attribs['_new_id']
1042
self._r_new_id = dict((v, k) for k, v in self._new_id.items())
1043
self._tree_path_ids = {}
1044
self._tree_id_paths = {}
1045
for bytepath, trans_id in attribs['_tree_path_ids'].items():
1046
path = bytepath.decode('utf-8')
1047
self._tree_path_ids[path] = trans_id
1048
self._tree_id_paths[trans_id] = path
1049
self._removed_id = set(attribs['_removed_id'])
1050
self._removed_contents = set(attribs['_removed_contents'])
1051
self._non_present_ids = attribs['_non_present_ids']
1052
for ((trans_id, kind),), content in records:
1054
mpdiff = multiparent.MultiParent.from_patch(content)
1055
lines = mpdiff.to_lines(self._get_parents_texts(trans_id))
1056
self.create_file(lines, trans_id)
1057
if kind == 'directory':
1058
self.create_directory(trans_id)
1059
if kind == 'symlink':
1060
self.create_symlink(content.decode('utf-8'), trans_id)
1063
class DiskTreeTransform(TreeTransformBase):
1064
"""Tree transform storing its contents on disk."""
1066
def __init__(self, tree, limbodir, pb=None,
1067
case_sensitive=True):
1069
:param tree: The tree that will be transformed, but not necessarily
1071
:param limbodir: A directory where new files can be stored until
1072
they are installed in their proper places
1074
:param case_sensitive: If True, the target of the transform is
1075
case sensitive, not just case preserving.
1077
TreeTransformBase.__init__(self, tree, pb, case_sensitive)
1078
self._limbodir = limbodir
1079
self._deletiondir = None
1080
# A mapping of transform ids to their limbo filename
1081
self._limbo_files = {}
1082
# A mapping of transform ids to a set of the transform ids of children
1083
# that their limbo directory has
1084
self._limbo_children = {}
1085
# Map transform ids to maps of child filename to child transform id
1086
self._limbo_children_names = {}
1087
# List of transform ids that need to be renamed from limbo into place
1088
self._needs_rename = set()
1089
self._creation_mtime = None
1092
"""Release the working tree lock, if held, clean up limbo dir.
1094
This is required if apply has not been invoked, but can be invoked
1097
if self._tree is None:
1100
entries = [(self._limbo_name(t), t, k) for t, k in
1101
self._new_contents.iteritems()]
1102
entries.sort(reverse=True)
1103
for path, trans_id, kind in entries:
1106
delete_any(self._limbodir)
1108
# We don't especially care *why* the dir is immortal.
1109
raise ImmortalLimbo(self._limbodir)
1111
if self._deletiondir is not None:
1112
delete_any(self._deletiondir)
1114
raise errors.ImmortalPendingDeletion(self._deletiondir)
1116
TreeTransformBase.finalize(self)
1118
def _limbo_name(self, trans_id):
1119
"""Generate the limbo name of a file"""
1120
limbo_name = self._limbo_files.get(trans_id)
1121
if limbo_name is None:
1122
limbo_name = self._generate_limbo_path(trans_id)
1123
self._limbo_files[trans_id] = limbo_name
1126
def _generate_limbo_path(self, trans_id):
1127
"""Generate a limbo path using the trans_id as the relative path.
1129
This is suitable as a fallback, and when the transform should not be
1130
sensitive to the path encoding of the limbo directory.
1132
self._needs_rename.add(trans_id)
1133
return pathjoin(self._limbodir, trans_id)
1135
def adjust_path(self, name, parent, trans_id):
1136
previous_parent = self._new_parent.get(trans_id)
1137
previous_name = self._new_name.get(trans_id)
1138
TreeTransformBase.adjust_path(self, name, parent, trans_id)
1139
if (trans_id in self._limbo_files and
1140
trans_id not in self._needs_rename):
1141
self._rename_in_limbo([trans_id])
1142
if previous_parent != parent:
1143
self._limbo_children[previous_parent].remove(trans_id)
1144
if previous_parent != parent or previous_name != name:
1145
del self._limbo_children_names[previous_parent][previous_name]
1147
def _rename_in_limbo(self, trans_ids):
1148
"""Fix limbo names so that the right final path is produced.
1150
This means we outsmarted ourselves-- we tried to avoid renaming
1151
these files later by creating them with their final names in their
1152
final parents. But now the previous name or parent is no longer
1153
suitable, so we have to rename them.
1155
Even for trans_ids that have no new contents, we must remove their
1156
entries from _limbo_files, because they are now stale.
1158
for trans_id in trans_ids:
1159
old_path = self._limbo_files.pop(trans_id)
1160
if trans_id not in self._new_contents:
1162
new_path = self._limbo_name(trans_id)
1163
osutils.rename(old_path, new_path)
1164
for descendant in self._limbo_descendants(trans_id):
1165
desc_path = self._limbo_files[descendant]
1166
desc_path = new_path + desc_path[len(old_path):]
1167
self._limbo_files[descendant] = desc_path
1169
def _limbo_descendants(self, trans_id):
1170
"""Return the set of trans_ids whose limbo paths descend from this."""
1171
descendants = set(self._limbo_children.get(trans_id, []))
1172
for descendant in list(descendants):
1173
descendants.update(self._limbo_descendants(descendant))
1176
def create_file(self, contents, trans_id, mode_id=None):
484
raise NotImplementedError(self.commit)
486
def create_file(self, contents, trans_id, mode_id=None, sha1=None):
1177
487
"""Schedule creation of a new file.
1181
Contents is an iterator of strings, all of which will be written
1182
to the target destination.
1184
New file takes the permissions of any existing file with that id,
1185
unless mode_id is specified.
1187
name = self._limbo_name(trans_id)
1188
f = open(name, 'wb')
1191
unique_add(self._new_contents, trans_id, 'file')
1193
# Clean up the file, it never got registered so
1194
# TreeTransform.finalize() won't clean it up.
1199
f.writelines(contents)
1202
self._set_mtime(name)
1203
self._set_mode(trans_id, mode_id, S_ISREG)
1205
def _read_file_chunks(self, trans_id):
1206
cur_file = open(self._limbo_name(trans_id), 'rb')
1208
return cur_file.readlines()
1212
def _read_symlink_target(self, trans_id):
1213
return os.readlink(self._limbo_name(trans_id))
1215
def _set_mtime(self, path):
1216
"""All files that are created get the same mtime.
1218
This time is set by the first object to be created.
1220
if self._creation_mtime is None:
1221
self._creation_mtime = time.time()
1222
os.utime(path, (self._creation_mtime, self._creation_mtime))
1224
def create_hardlink(self, path, trans_id):
1225
"""Schedule creation of a hard link"""
1226
name = self._limbo_name(trans_id)
1230
if e.errno != errno.EPERM:
1232
raise errors.HardLinkNotSupported(path)
1234
unique_add(self._new_contents, trans_id, 'file')
1236
# Clean up the file, it never got registered so
1237
# TreeTransform.finalize() won't clean it up.
491
:param contents: an iterator of strings, all of which will be written
492
to the target destination.
493
:param trans_id: TreeTransform handle
494
:param mode_id: If not None, force the mode of the target file to match
495
the mode of the object referenced by mode_id.
496
Otherwise, we will try to preserve mode bits of an existing file.
497
:param sha1: If the sha1 of this content is already known, pass it in.
498
We can use it to prevent future sha1 computations.
500
raise NotImplementedError(self.create_file)
1241
502
def create_directory(self, trans_id):
1242
503
"""Schedule creation of a new directory.
1244
505
See also new_directory.
1246
os.mkdir(self._limbo_name(trans_id))
1247
unique_add(self._new_contents, trans_id, 'directory')
507
raise NotImplementedError(self.create_directory)
1249
509
def create_symlink(self, target, trans_id):
1250
510
"""Schedule creation of a new symbolic link.
1252
512
target is a bytestring.
1253
513
See also new_symlink.
1256
os.symlink(target, self._limbo_name(trans_id))
1257
unique_add(self._new_contents, trans_id, 'symlink')
1260
path = FinalPaths(self).get_path(trans_id)
1263
raise UnableCreateSymlink(path=path)
515
raise NotImplementedError(self.create_symlink)
517
def create_hardlink(self, path, trans_id):
518
"""Schedule creation of a hard link"""
519
raise NotImplementedError(self.create_hardlink)
1265
521
def cancel_creation(self, trans_id):
1266
522
"""Cancel the creation of new file contents."""
1267
del self._new_contents[trans_id]
1268
children = self._limbo_children.get(trans_id)
1269
# if this is a limbo directory with children, move them before removing
1271
if children is not None:
1272
self._rename_in_limbo(children)
1273
del self._limbo_children[trans_id]
1274
del self._limbo_children_names[trans_id]
1275
delete_any(self._limbo_name(trans_id))
1278
class TreeTransform(DiskTreeTransform):
1279
"""Represent a tree transformation.
1281
This object is designed to support incremental generation of the transform,
1284
However, it gives optimum performance when parent directories are created
1285
before their contents. The transform is then able to put child files
1286
directly in their parent directory, avoiding later renames.
1288
It is easy to produce malformed transforms, but they are generally
1289
harmless. Attempting to apply a malformed transform will cause an
1290
exception to be raised before any modifications are made to the tree.
1292
Many kinds of malformed transforms can be corrected with the
1293
resolve_conflicts function. The remaining ones indicate programming error,
1294
such as trying to create a file with no path.
1296
Two sets of file creation methods are supplied. Convenience methods are:
1301
These are composed of the low-level methods:
1303
* create_file or create_directory or create_symlink
1307
Transform/Transaction ids
1308
-------------------------
1309
trans_ids are temporary ids assigned to all files involved in a transform.
1310
It's possible, even common, that not all files in the Tree have trans_ids.
1312
trans_ids are used because filenames and file_ids are not good enough
1313
identifiers; filenames change, and not all files have file_ids. File-ids
1314
are also associated with trans-ids, so that moving a file moves its
1317
trans_ids are only valid for the TreeTransform that generated them.
1321
Limbo is a temporary directory use to hold new versions of files.
1322
Files are added to limbo by create_file, create_directory, create_symlink,
1323
and their convenience variants (new_*). Files may be removed from limbo
1324
using cancel_creation. Files are renamed from limbo into their final
1325
location as part of TreeTransform.apply
1327
Limbo must be cleaned up, by either calling TreeTransform.apply or
1328
calling TreeTransform.finalize.
1330
Files are placed into limbo inside their parent directories, where
1331
possible. This reduces subsequent renames, and makes operations involving
1332
lots of files faster. This optimization is only possible if the parent
1333
directory is created *before* creating any of its children, so avoid
1334
creating children before parents, where possible.
1338
This temporary directory is used by _FileMover for storing files that are
1339
about to be deleted. In case of rollback, the files will be restored.
1340
FileMover does not delete files until it is sure that a rollback will not
1343
def __init__(self, tree, pb=None):
1344
"""Note: a tree_write lock is taken on the tree.
1346
Use TreeTransform.finalize() to release the lock (can be omitted if
1347
TreeTransform.apply() called).
1349
tree.lock_tree_write()
1352
limbodir = urlutils.local_path_from_url(
1353
tree._transport.abspath('limbo'))
1357
if e.errno == errno.EEXIST:
1358
raise ExistingLimbo(limbodir)
1359
deletiondir = urlutils.local_path_from_url(
1360
tree._transport.abspath('pending-deletion'))
1362
os.mkdir(deletiondir)
1364
if e.errno == errno.EEXIST:
1365
raise errors.ExistingPendingDeletion(deletiondir)
1370
# Cache of realpath results, to speed up canonical_path
1371
self._realpaths = {}
1372
# Cache of relpath results, to speed up canonical_path
1374
DiskTreeTransform.__init__(self, tree, limbodir, pb,
1375
tree.case_sensitive)
1376
self._deletiondir = deletiondir
1378
def canonical_path(self, path):
1379
"""Get the canonical tree-relative path"""
1380
# don't follow final symlinks
1381
abs = self._tree.abspath(path)
1382
if abs in self._relpaths:
1383
return self._relpaths[abs]
1384
dirname, basename = os.path.split(abs)
1385
if dirname not in self._realpaths:
1386
self._realpaths[dirname] = os.path.realpath(dirname)
1387
dirname = self._realpaths[dirname]
1388
abs = pathjoin(dirname, basename)
1389
if dirname in self._relpaths:
1390
relpath = pathjoin(self._relpaths[dirname], basename)
1391
relpath = relpath.rstrip('/\\')
1393
relpath = self._tree.relpath(abs)
1394
self._relpaths[abs] = relpath
1397
def tree_kind(self, trans_id):
1398
"""Determine the file kind in the working tree.
1400
Raises NoSuchFile if the file does not exist
1402
path = self._tree_id_paths.get(trans_id)
1404
raise NoSuchFile(None)
1406
return file_kind(self._tree.abspath(path))
1408
if e.errno != errno.ENOENT:
1411
raise NoSuchFile(path)
1413
def _set_mode(self, trans_id, mode_id, typefunc):
1414
"""Set the mode of new file contents.
1415
The mode_id is the existing file to get the mode from (often the same
1416
as trans_id). The operation is only performed if there's a mode match
1417
according to typefunc.
1422
old_path = self._tree_id_paths[mode_id]
1426
mode = os.stat(self._tree.abspath(old_path)).st_mode
1428
if e.errno in (errno.ENOENT, errno.ENOTDIR):
1429
# Either old_path doesn't exist, or the parent of the
1430
# target is not a directory (but will be one eventually)
1431
# Either way, we know it doesn't exist *right now*
1432
# See also bug #248448
1437
os.chmod(self._limbo_name(trans_id), mode)
1439
def iter_tree_children(self, parent_id):
1440
"""Iterate through the entry's tree children, if any"""
1442
path = self._tree_id_paths[parent_id]
1446
children = os.listdir(self._tree.abspath(path))
1448
if not (osutils._is_error_enotdir(e)
1449
or e.errno in (errno.ENOENT, errno.ESRCH)):
1453
for child in children:
1454
childpath = joinpath(path, child)
1455
if self._tree.is_control_filename(childpath):
1457
yield self.trans_id_tree_path(childpath)
1459
def _generate_limbo_path(self, trans_id):
1460
"""Generate a limbo path using the final path if possible.
1462
This optimizes the performance of applying the tree transform by
1463
avoiding renames. These renames can be avoided only when the parent
1464
directory is already scheduled for creation.
1466
If the final path cannot be used, falls back to using the trans_id as
1469
parent = self._new_parent.get(trans_id)
1470
# if the parent directory is already in limbo (e.g. when building a
1471
# tree), choose a limbo name inside the parent, to reduce further
1473
use_direct_path = False
1474
if self._new_contents.get(parent) == 'directory':
1475
filename = self._new_name.get(trans_id)
1476
if filename is not None:
1477
if parent not in self._limbo_children:
1478
self._limbo_children[parent] = set()
1479
self._limbo_children_names[parent] = {}
1480
use_direct_path = True
1481
# the direct path can only be used if no other file has
1482
# already taken this pathname, i.e. if the name is unused, or
1483
# if it is already associated with this trans_id.
1484
elif self._case_sensitive_target:
1485
if (self._limbo_children_names[parent].get(filename)
1486
in (trans_id, None)):
1487
use_direct_path = True
1489
for l_filename, l_trans_id in\
1490
self._limbo_children_names[parent].iteritems():
1491
if l_trans_id == trans_id:
1493
if l_filename.lower() == filename.lower():
1496
use_direct_path = True
1498
if not use_direct_path:
1499
return DiskTreeTransform._generate_limbo_path(self, trans_id)
1501
limbo_name = pathjoin(self._limbo_files[parent], filename)
1502
self._limbo_children[parent].add(trans_id)
1503
self._limbo_children_names[parent][filename] = trans_id
1507
def apply(self, no_conflicts=False, precomputed_delta=None, _mover=None):
1508
"""Apply all changes to the inventory and filesystem.
1510
If filesystem or inventory conflicts are present, MalformedTransform
1513
If apply succeeds, finalize is not necessary.
1515
:param no_conflicts: if True, the caller guarantees there are no
1516
conflicts, so no check is made.
1517
:param precomputed_delta: An inventory delta to use instead of
1519
:param _mover: Supply an alternate FileMover, for testing
1521
if not no_conflicts:
1522
self._check_malformed()
1523
child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
1525
if precomputed_delta is None:
1526
child_pb.update('Apply phase', 0, 2)
1527
inventory_delta = self._generate_inventory_delta()
1530
inventory_delta = precomputed_delta
1533
mover = _FileMover()
1537
child_pb.update('Apply phase', 0 + offset, 2 + offset)
1538
self._apply_removals(mover)
1539
child_pb.update('Apply phase', 1 + offset, 2 + offset)
1540
modified_paths = self._apply_insertions(mover)
1545
mover.apply_deletions()
1548
self._tree.apply_inventory_delta(inventory_delta)
1551
return _TransformResults(modified_paths, self.rename_count)
1553
def _generate_inventory_delta(self):
1554
"""Generate an inventory delta for the current transform."""
1555
inventory_delta = []
1556
child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
1557
new_paths = self._inventory_altered()
1558
total_entries = len(new_paths) + len(self._removed_id)
1560
for num, trans_id in enumerate(self._removed_id):
1562
child_pb.update('removing file', num, total_entries)
1563
if trans_id == self._new_root:
1564
file_id = self._tree.get_root_id()
1566
file_id = self.tree_file_id(trans_id)
1567
# File-id isn't really being deleted, just moved
1568
if file_id in self._r_new_id:
1570
path = self._tree_id_paths[trans_id]
1571
inventory_delta.append((path, None, file_id, None))
1572
new_path_file_ids = dict((t, self.final_file_id(t)) for p, t in
1574
entries = self._tree.iter_entries_by_dir(
1575
new_path_file_ids.values())
1576
old_paths = dict((e.file_id, p) for p, e in entries)
1578
for num, (path, trans_id) in enumerate(new_paths):
1580
child_pb.update('adding file',
1581
num + len(self._removed_id), total_entries)
1582
file_id = new_path_file_ids[trans_id]
1587
kind = self.final_kind(trans_id)
1589
kind = self._tree.stored_kind(file_id)
1590
parent_trans_id = self.final_parent(trans_id)
1591
parent_file_id = new_path_file_ids.get(parent_trans_id)
1592
if parent_file_id is None:
1593
parent_file_id = self.final_file_id(parent_trans_id)
1594
if trans_id in self._new_reference_revision:
1595
new_entry = inventory.TreeReference(
1597
self._new_name[trans_id],
1598
self.final_file_id(self._new_parent[trans_id]),
1599
None, self._new_reference_revision[trans_id])
1601
new_entry = inventory.make_entry(kind,
1602
self.final_name(trans_id),
1603
parent_file_id, file_id)
1604
old_path = old_paths.get(new_entry.file_id)
1605
new_executability = self._new_executability.get(trans_id)
1606
if new_executability is not None:
1607
new_entry.executable = new_executability
1608
inventory_delta.append(
1609
(old_path, path, new_entry.file_id, new_entry))
1612
return inventory_delta
1614
def _apply_removals(self, mover):
1615
"""Perform tree operations that remove directory/inventory names.
1617
That is, delete files that are to be deleted, and put any files that
1618
need renaming into limbo. This must be done in strict child-to-parent
1621
If inventory_delta is None, no inventory delta generation is performed.
1623
tree_paths = list(self._tree_path_ids.iteritems())
1624
tree_paths.sort(reverse=True)
1625
child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
1627
for num, data in enumerate(tree_paths):
1628
path, trans_id = data
1629
child_pb.update('removing file', num, len(tree_paths))
1630
full_path = self._tree.abspath(path)
1631
if trans_id in self._removed_contents:
1632
delete_path = os.path.join(self._deletiondir, trans_id)
1633
mover.pre_delete(full_path, delete_path)
1634
elif (trans_id in self._new_name
1635
or trans_id in self._new_parent):
1637
mover.rename(full_path, self._limbo_name(trans_id))
1639
if e.errno != errno.ENOENT:
1642
self.rename_count += 1
1646
def _apply_insertions(self, mover):
1647
"""Perform tree operations that insert directory/inventory names.
1649
That is, create any files that need to be created, and restore from
1650
limbo any files that needed renaming. This must be done in strict
1651
parent-to-child order.
1653
If inventory_delta is None, no inventory delta is calculated, and
1654
no list of modified paths is returned.
1656
new_paths = self.new_paths(filesystem_only=True)
1658
new_path_file_ids = dict((t, self.final_file_id(t)) for p, t in
1660
child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
1662
for num, (path, trans_id) in enumerate(new_paths):
1664
child_pb.update('adding file', num, len(new_paths))
1665
full_path = self._tree.abspath(path)
1666
if trans_id in self._needs_rename:
1668
mover.rename(self._limbo_name(trans_id), full_path)
1670
# We may be renaming a dangling inventory id
1671
if e.errno != errno.ENOENT:
1674
self.rename_count += 1
1675
if (trans_id in self._new_contents or
1676
self.path_changed(trans_id)):
1677
if trans_id in self._new_contents:
1678
modified_paths.append(full_path)
1679
if trans_id in self._new_executability:
1680
self._set_executability(path, trans_id)
1683
self._new_contents.clear()
1684
return modified_paths
1687
class TransformPreview(DiskTreeTransform):
1688
"""A TreeTransform for generating preview trees.
1690
Unlike TreeTransform, this version works when the input tree is a
1691
RevisionTree, rather than a WorkingTree. As a result, it tends to ignore
1692
unversioned files in the input tree.
1695
def __init__(self, tree, pb=None, case_sensitive=True):
1697
limbodir = osutils.mkdtemp(prefix='bzr-limbo-')
1698
DiskTreeTransform.__init__(self, tree, limbodir, pb, case_sensitive)
1700
def canonical_path(self, path):
1703
def tree_kind(self, trans_id):
1704
path = self._tree_id_paths.get(trans_id)
1706
raise NoSuchFile(None)
1707
file_id = self._tree.path2id(path)
1708
return self._tree.kind(file_id)
1710
def _set_mode(self, trans_id, mode_id, typefunc):
1711
"""Set the mode of new file contents.
1712
The mode_id is the existing file to get the mode from (often the same
1713
as trans_id). The operation is only performed if there's a mode match
1714
according to typefunc.
1716
# is it ok to ignore this? probably
1719
def iter_tree_children(self, parent_id):
1720
"""Iterate through the entry's tree children, if any"""
1722
path = self._tree_id_paths[parent_id]
1725
file_id = self.tree_file_id(parent_id)
1728
entry = self._tree.iter_entries_by_dir([file_id]).next()[1]
1729
children = getattr(entry, 'children', {})
1730
for child in children:
1731
childpath = joinpath(path, child)
1732
yield self.trans_id_tree_path(childpath)
1735
class _PreviewTree(tree.Tree):
1736
"""Partial implementation of Tree to support show_diff_trees"""
1738
def __init__(self, transform):
1739
self._transform = transform
1740
self._final_paths = FinalPaths(transform)
1741
self.__by_parent = None
1742
self._parent_ids = []
1743
self._all_children_cache = {}
1744
self._path2trans_id_cache = {}
1745
self._final_name_cache = {}
1746
self._iter_changes_cache = dict((c[0], c) for c in
1747
self._transform.iter_changes())
1749
def _content_change(self, file_id):
1750
"""Return True if the content of this file changed"""
1751
changes = self._iter_changes_cache.get(file_id)
1752
# changes[2] is true if the file content changed. See
1753
# InterTree.iter_changes.
1754
return (changes is not None and changes[2])
1756
def _get_repository(self):
1757
repo = getattr(self._transform._tree, '_repository', None)
1759
repo = self._transform._tree.branch.repository
1762
def _iter_parent_trees(self):
1763
for revision_id in self.get_parent_ids():
1765
yield self.revision_tree(revision_id)
1766
except errors.NoSuchRevisionInTree:
1767
yield self._get_repository().revision_tree(revision_id)
1769
def _get_file_revision(self, file_id, vf, tree_revision):
1770
parent_keys = [(file_id, self._file_revision(t, file_id)) for t in
1771
self._iter_parent_trees()]
1772
vf.add_lines((file_id, tree_revision), parent_keys,
1773
self.get_file(file_id).readlines())
1774
repo = self._get_repository()
1775
base_vf = repo.texts
1776
if base_vf not in vf.fallback_versionedfiles:
1777
vf.fallback_versionedfiles.append(base_vf)
1778
return tree_revision
1780
def _stat_limbo_file(self, file_id):
1781
trans_id = self._transform.trans_id_file_id(file_id)
1782
name = self._transform._limbo_name(trans_id)
1783
return os.lstat(name)
1786
def _by_parent(self):
1787
if self.__by_parent is None:
1788
self.__by_parent = self._transform.by_parent()
1789
return self.__by_parent
1791
def _comparison_data(self, entry, path):
1792
kind, size, executable, link_or_sha1 = self.path_content_summary(path)
1793
if kind == 'missing':
1797
file_id = self._transform.final_file_id(self._path2trans_id(path))
1798
executable = self.is_executable(file_id, path)
1799
return kind, executable, None
1801
def lock_read(self):
1802
# Perhaps in theory, this should lock the TreeTransform?
1809
def inventory(self):
1810
"""This Tree does not use inventory as its backing data."""
1811
raise NotImplementedError(_PreviewTree.inventory)
1813
def get_root_id(self):
1814
return self._transform.final_file_id(self._transform.root)
1816
def all_file_ids(self):
1817
tree_ids = set(self._transform._tree.all_file_ids())
1818
tree_ids.difference_update(self._transform.tree_file_id(t)
1819
for t in self._transform._removed_id)
1820
tree_ids.update(self._transform._new_id.values())
1824
return iter(self.all_file_ids())
1826
def _has_id(self, file_id, fallback_check):
1827
if file_id in self._transform._r_new_id:
1829
elif file_id in set([self._transform.tree_file_id(trans_id) for
1830
trans_id in self._transform._removed_id]):
1833
return fallback_check(file_id)
1835
def has_id(self, file_id):
1836
return self._has_id(file_id, self._transform._tree.has_id)
1838
def has_or_had_id(self, file_id):
1839
return self._has_id(file_id, self._transform._tree.has_or_had_id)
1841
def _path2trans_id(self, path):
1842
# We must not use None here, because that is a valid value to store.
1843
trans_id = self._path2trans_id_cache.get(path, object)
1844
if trans_id is not object:
1846
segments = splitpath(path)
1847
cur_parent = self._transform.root
1848
for cur_segment in segments:
1849
for child in self._all_children(cur_parent):
1850
final_name = self._final_name_cache.get(child)
1851
if final_name is None:
1852
final_name = self._transform.final_name(child)
1853
self._final_name_cache[child] = final_name
1854
if final_name == cur_segment:
1858
self._path2trans_id_cache[path] = None
1860
self._path2trans_id_cache[path] = cur_parent
1863
def path2id(self, path):
1864
return self._transform.final_file_id(self._path2trans_id(path))
1866
def id2path(self, file_id):
1867
trans_id = self._transform.trans_id_file_id(file_id)
1869
return self._final_paths._determine_path(trans_id)
1871
raise errors.NoSuchId(self, file_id)
1873
def _all_children(self, trans_id):
1874
children = self._all_children_cache.get(trans_id)
1875
if children is not None:
1877
children = set(self._transform.iter_tree_children(trans_id))
1878
# children in the _new_parent set are provided by _by_parent.
1879
children.difference_update(self._transform._new_parent.keys())
1880
children.update(self._by_parent.get(trans_id, []))
1881
self._all_children_cache[trans_id] = children
1884
def iter_children(self, file_id):
1885
trans_id = self._transform.trans_id_file_id(file_id)
1886
for child_trans_id in self._all_children(trans_id):
1887
yield self._transform.final_file_id(child_trans_id)
1890
possible_extras = set(self._transform.trans_id_tree_path(p) for p
1891
in self._transform._tree.extras())
1892
possible_extras.update(self._transform._new_contents)
1893
possible_extras.update(self._transform._removed_id)
1894
for trans_id in possible_extras:
1895
if self._transform.final_file_id(trans_id) is None:
1896
yield self._final_paths._determine_path(trans_id)
1898
def _make_inv_entries(self, ordered_entries, specific_file_ids=None,
1899
yield_parents=False):
1900
for trans_id, parent_file_id in ordered_entries:
1901
file_id = self._transform.final_file_id(trans_id)
1904
if (specific_file_ids is not None
1905
and file_id not in specific_file_ids):
1908
kind = self._transform.final_kind(trans_id)
1910
kind = self._transform._tree.stored_kind(file_id)
1911
new_entry = inventory.make_entry(
1913
self._transform.final_name(trans_id),
1914
parent_file_id, file_id)
1915
yield new_entry, trans_id
1917
def _list_files_by_dir(self):
1918
todo = [ROOT_PARENT]
1920
while len(todo) > 0:
1922
parent_file_id = self._transform.final_file_id(parent)
1923
children = list(self._all_children(parent))
1924
paths = dict(zip(children, self._final_paths.get_paths(children)))
1925
children.sort(key=paths.get)
1926
todo.extend(reversed(children))
1927
for trans_id in children:
1928
ordered_ids.append((trans_id, parent_file_id))
1931
def iter_entries_by_dir(self, specific_file_ids=None, yield_parents=False):
1932
# This may not be a maximally efficient implementation, but it is
1933
# reasonably straightforward. An implementation that grafts the
1934
# TreeTransform changes onto the tree's iter_entries_by_dir results
1935
# might be more efficient, but requires tricky inferences about stack
1937
ordered_ids = self._list_files_by_dir()
1938
for entry, trans_id in self._make_inv_entries(ordered_ids,
1939
specific_file_ids, yield_parents=yield_parents):
1940
yield unicode(self._final_paths.get_path(trans_id)), entry
1942
def _iter_entries_for_dir(self, dir_path):
1943
"""Return path, entry for items in a directory without recursing down."""
1944
dir_file_id = self.path2id(dir_path)
1946
for file_id in self.iter_children(dir_file_id):
1947
trans_id = self._transform.trans_id_file_id(file_id)
1948
ordered_ids.append((trans_id, file_id))
1949
for entry, trans_id in self._make_inv_entries(ordered_ids):
1950
yield unicode(self._final_paths.get_path(trans_id)), entry
1952
def list_files(self, include_root=False, from_dir=None, recursive=True):
1953
"""See WorkingTree.list_files."""
1954
# XXX This should behave like WorkingTree.list_files, but is really
1955
# more like RevisionTree.list_files.
1959
prefix = from_dir + '/'
1960
entries = self.iter_entries_by_dir()
1961
for path, entry in entries:
1962
if entry.name == '' and not include_root:
1965
if not path.startswith(prefix):
1967
path = path[len(prefix):]
1968
yield path, 'V', entry.kind, entry.file_id, entry
1970
if from_dir is None and include_root is True:
1971
root_entry = inventory.make_entry('directory', '',
1972
ROOT_PARENT, self.get_root_id())
1973
yield '', 'V', 'directory', root_entry.file_id, root_entry
1974
entries = self._iter_entries_for_dir(from_dir or '')
1975
for path, entry in entries:
1976
yield path, 'V', entry.kind, entry.file_id, entry
1978
def kind(self, file_id):
1979
trans_id = self._transform.trans_id_file_id(file_id)
1980
return self._transform.final_kind(trans_id)
1982
def stored_kind(self, file_id):
1983
trans_id = self._transform.trans_id_file_id(file_id)
1985
return self._transform._new_contents[trans_id]
1987
return self._transform._tree.stored_kind(file_id)
1989
def get_file_mtime(self, file_id, path=None):
1990
"""See Tree.get_file_mtime"""
1991
if not self._content_change(file_id):
1992
return self._transform._tree.get_file_mtime(file_id)
1993
return self._stat_limbo_file(file_id).st_mtime
1995
def _file_size(self, entry, stat_value):
1996
return self.get_file_size(entry.file_id)
1998
def get_file_size(self, file_id):
1999
"""See Tree.get_file_size"""
2000
if self.kind(file_id) == 'file':
2001
return self._transform._tree.get_file_size(file_id)
2005
def get_file_sha1(self, file_id, path=None, stat_value=None):
2006
trans_id = self._transform.trans_id_file_id(file_id)
2007
kind = self._transform._new_contents.get(trans_id)
2009
return self._transform._tree.get_file_sha1(file_id)
2011
fileobj = self.get_file(file_id)
2013
return sha_file(fileobj)
2017
def is_executable(self, file_id, path=None):
2020
trans_id = self._transform.trans_id_file_id(file_id)
2022
return self._transform._new_executability[trans_id]
2025
return self._transform._tree.is_executable(file_id, path)
2027
if e.errno == errno.ENOENT:
2030
except errors.NoSuchId:
2033
def path_content_summary(self, path):
2034
trans_id = self._path2trans_id(path)
2035
tt = self._transform
2036
tree_path = tt._tree_id_paths.get(trans_id)
2037
kind = tt._new_contents.get(trans_id)
2039
if tree_path is None or trans_id in tt._removed_contents:
2040
return 'missing', None, None, None
2041
summary = tt._tree.path_content_summary(tree_path)
2042
kind, size, executable, link_or_sha1 = summary
2045
limbo_name = tt._limbo_name(trans_id)
2046
if trans_id in tt._new_reference_revision:
2047
kind = 'tree-reference'
2049
statval = os.lstat(limbo_name)
2050
size = statval.st_size
2051
if not supports_executable():
2054
executable = statval.st_mode & S_IEXEC
2058
if kind == 'symlink':
2059
link_or_sha1 = os.readlink(limbo_name).decode(osutils._fs_enc)
2060
executable = tt._new_executability.get(trans_id, executable)
2061
return kind, size, executable, link_or_sha1
2063
def iter_changes(self, from_tree, include_unchanged=False,
2064
specific_files=None, pb=None, extra_trees=None,
2065
require_versioned=True, want_unversioned=False):
2066
"""See InterTree.iter_changes.
2068
This has a fast path that is only used when the from_tree matches
2069
the transform tree, and no fancy options are supplied.
2071
if (from_tree is not self._transform._tree or include_unchanged or
2072
specific_files or want_unversioned):
2073
return tree.InterTree(from_tree, self).iter_changes(
2074
include_unchanged=include_unchanged,
2075
specific_files=specific_files,
2077
extra_trees=extra_trees,
2078
require_versioned=require_versioned,
2079
want_unversioned=want_unversioned)
2080
if want_unversioned:
2081
raise ValueError('want_unversioned is not supported')
2082
return self._transform.iter_changes()
2084
def get_file(self, file_id, path=None):
2085
"""See Tree.get_file"""
2086
if not self._content_change(file_id):
2087
return self._transform._tree.get_file(file_id, path)
2088
trans_id = self._transform.trans_id_file_id(file_id)
2089
name = self._transform._limbo_name(trans_id)
2090
return open(name, 'rb')
2092
def get_file_with_stat(self, file_id, path=None):
2093
return self.get_file(file_id, path), None
2095
def annotate_iter(self, file_id,
2096
default_revision=_mod_revision.CURRENT_REVISION):
2097
changes = self._iter_changes_cache.get(file_id)
2101
changed_content, versioned, kind = (changes[2], changes[3],
2105
get_old = (kind[0] == 'file' and versioned[0])
2107
old_annotation = self._transform._tree.annotate_iter(file_id,
2108
default_revision=default_revision)
2112
return old_annotation
2113
if not changed_content:
2114
return old_annotation
2115
# TODO: This is doing something similar to what WT.annotate_iter is
2116
# doing, however it fails slightly because it doesn't know what
2117
# the *other* revision_id is, so it doesn't know how to give the
2118
# other as the origin for some lines, they all get
2119
# 'default_revision'
2120
# It would be nice to be able to use the new Annotator based
2121
# approach, as well.
2122
return annotate.reannotate([old_annotation],
2123
self.get_file(file_id).readlines(),
2126
def get_symlink_target(self, file_id):
2127
"""See Tree.get_symlink_target"""
2128
if not self._content_change(file_id):
2129
return self._transform._tree.get_symlink_target(file_id)
2130
trans_id = self._transform.trans_id_file_id(file_id)
2131
name = self._transform._limbo_name(trans_id)
2132
return osutils.readlink(name)
2134
def walkdirs(self, prefix=''):
2135
pending = [self._transform.root]
2136
while len(pending) > 0:
2137
parent_id = pending.pop()
2140
prefix = prefix.rstrip('/')
2141
parent_path = self._final_paths.get_path(parent_id)
2142
parent_file_id = self._transform.final_file_id(parent_id)
2143
for child_id in self._all_children(parent_id):
2144
path_from_root = self._final_paths.get_path(child_id)
2145
basename = self._transform.final_name(child_id)
2146
file_id = self._transform.final_file_id(child_id)
2148
kind = self._transform.final_kind(child_id)
2149
versioned_kind = kind
2152
versioned_kind = self._transform._tree.stored_kind(file_id)
2153
if versioned_kind == 'directory':
2154
subdirs.append(child_id)
2155
children.append((path_from_root, basename, kind, None,
2156
file_id, versioned_kind))
2158
if parent_path.startswith(prefix):
2159
yield (parent_path, parent_file_id), children
2160
pending.extend(sorted(subdirs, key=self._final_paths.get_path,
2163
def get_parent_ids(self):
2164
return self._parent_ids
2166
def set_parent_ids(self, parent_ids):
2167
self._parent_ids = parent_ids
2169
def get_revision_tree(self, revision_id):
2170
return self._transform._tree.get_revision_tree(revision_id)
523
raise NotImplementedError(self.cancel_creation)
525
def cook_conflicts(self, raw_conflicts):
528
raise NotImplementedError(self.cook_conflicts)
531
class OrphaningError(errors.BzrError):
533
# Only bugs could lead to such exception being seen by the user
534
internal_error = True
535
_fmt = "Error while orphaning %s in %s directory"
537
def __init__(self, orphan, parent):
538
errors.BzrError.__init__(self)
543
class OrphaningForbidden(OrphaningError):
545
_fmt = "Policy: %s doesn't allow creating orphans."
547
def __init__(self, policy):
548
errors.BzrError.__init__(self)
552
def move_orphan(tt, orphan_id, parent_id):
553
"""See TreeTransformBase.new_orphan.
555
This creates a new orphan in the `brz-orphans` dir at the root of the
558
:param tt: The TreeTransform orphaning `trans_id`.
560
:param orphan_id: The trans id that should be orphaned.
562
:param parent_id: The orphan parent trans id.
564
# Add the orphan dir if it doesn't exist
565
orphan_dir_basename = 'brz-orphans'
566
od_id = tt.trans_id_tree_path(orphan_dir_basename)
567
if tt.final_kind(od_id) is None:
568
tt.create_directory(od_id)
569
parent_path = tt._tree_id_paths[parent_id]
570
# Find a name that doesn't exist yet in the orphan dir
571
actual_name = tt.final_name(orphan_id)
572
new_name = tt._available_backup_name(actual_name, od_id)
573
tt.adjust_path(new_name, od_id, orphan_id)
574
trace.warning('%s has been orphaned in %s'
575
% (joinpath(parent_path, actual_name), orphan_dir_basename))
578
def refuse_orphan(tt, orphan_id, parent_id):
579
"""See TreeTransformBase.new_orphan.
581
This refuses to create orphan, letting the caller handle the conflict.
583
raise OrphaningForbidden('never')
586
orphaning_registry = registry.Registry()
587
orphaning_registry.register(
588
u'conflict', refuse_orphan,
589
'Leave orphans in place and create a conflict on the directory.')
590
orphaning_registry.register(
591
u'move', move_orphan,
592
'Move orphans into the brz-orphans directory.')
593
orphaning_registry._set_default_key(u'conflict')
596
opt_transform_orphan = _mod_config.RegistryOption(
597
'transform.orphan_policy', orphaning_registry,
598
help='Policy for orphaned files during transform operations.',
2173
602
def joinpath(parent, child):
2641
998
backups, merge_modified, basis_tree=None):
2642
999
if basis_tree is not None:
2643
1000
basis_tree.lock_read()
2644
change_list = target_tree.iter_changes(working_tree,
2645
specific_files=specific_files, pb=pb)
2646
if target_tree.get_root_id() is None:
1001
# We ask the working_tree for its changes relative to the target, rather
1002
# than the target changes relative to the working tree. Because WT4 has an
1003
# optimizer to compare itself to a target, but no optimizer for the
1005
change_list = working_tree.iter_changes(
1006
target_tree, specific_files=specific_files, pb=pb)
1007
if not target_tree.is_versioned(u''):
2647
1008
skip_root = True
2649
1010
skip_root = False
2651
1012
deferred_files = []
2652
for id_num, (file_id, path, changed_content, versioned, parent, name,
2653
kind, executable) in enumerate(change_list):
2654
if skip_root and file_id[0] is not None and parent[0] is None:
1013
for id_num, change in enumerate(change_list):
1014
target_path, wt_path = change.path
1015
target_versioned, wt_versioned = change.versioned
1016
target_parent = change.parent_id[0]
1017
target_name, wt_name = change.name
1018
target_kind, wt_kind = change.kind
1019
target_executable, wt_executable = change.executable
1020
if skip_root and wt_path == '':
2656
trans_id = tt.trans_id_file_id(file_id)
1022
trans_id = tt.trans_id_file_id(change.file_id)
1024
if change.changed_content:
2659
1025
keep_content = False
2660
if kind[0] == 'file' and (backups or kind[1] is None):
2661
wt_sha1 = working_tree.get_file_sha1(file_id)
2662
if merge_modified.get(file_id) != wt_sha1:
1026
if wt_kind == 'file' and (backups or target_kind is None):
1027
wt_sha1 = working_tree.get_file_sha1(wt_path)
1028
if merge_modified.get(wt_path) != wt_sha1:
2663
1029
# acquire the basis tree lazily to prevent the
2664
1030
# expense of accessing it when it's not needed ?
2665
1031
# (Guessing, RBC, 200702)
2666
1032
if basis_tree is None:
2667
1033
basis_tree = working_tree.basis_tree()
2668
1034
basis_tree.lock_read()
2669
if file_id in basis_tree:
2670
if wt_sha1 != basis_tree.get_file_sha1(file_id):
2672
elif kind[1] is None and not versioned[1]:
2674
if kind[0] is not None:
1035
basis_inter = InterTree.get(basis_tree, working_tree)
1036
basis_path = basis_inter.find_source_path(wt_path)
1037
if basis_path is None:
1038
if target_kind is None and not target_versioned:
1041
if wt_sha1 != basis_tree.get_file_sha1(basis_path):
1043
if wt_kind is not None:
2675
1044
if not keep_content:
2676
1045
tt.delete_contents(trans_id)
2677
elif kind[1] is not None:
2678
parent_trans_id = tt.trans_id_file_id(parent[0])
2679
by_parent = tt.by_parent()
2680
backup_name = _get_backup_name(name[0], by_parent,
2681
parent_trans_id, tt)
1046
elif target_kind is not None:
1047
parent_trans_id = tt.trans_id_tree_path(osutils.dirname(wt_path))
1048
backup_name = tt._available_backup_name(
1049
wt_name, parent_trans_id)
2682
1050
tt.adjust_path(backup_name, parent_trans_id, trans_id)
2683
new_trans_id = tt.create_path(name[0], parent_trans_id)
2684
if versioned == (True, True):
1051
new_trans_id = tt.create_path(wt_name, parent_trans_id)
1052
if wt_versioned and target_versioned:
2685
1053
tt.unversion_file(trans_id)
2686
tt.version_file(file_id, new_trans_id)
1055
new_trans_id, file_id=getattr(change, 'file_id', None))
2687
1056
# New contents should have the same unix perms as old
2689
1058
mode_id = trans_id
2690
1059
trans_id = new_trans_id
2691
if kind[1] in ('directory', 'tree-reference'):
1060
if target_kind in ('directory', 'tree-reference'):
2692
1061
tt.create_directory(trans_id)
2693
if kind[1] == 'tree-reference':
2694
revision = target_tree.get_reference_revision(file_id,
1062
if target_kind == 'tree-reference':
1063
revision = target_tree.get_reference_revision(
2696
1065
tt.set_tree_reference(revision, trans_id)
2697
elif kind[1] == 'symlink':
2698
tt.create_symlink(target_tree.get_symlink_target(file_id),
2700
elif kind[1] == 'file':
2701
deferred_files.append((file_id, (trans_id, mode_id)))
1066
elif target_kind == 'symlink':
1067
tt.create_symlink(target_tree.get_symlink_target(
1068
target_path), trans_id)
1069
elif target_kind == 'file':
1070
deferred_files.append(
1071
(target_path, (trans_id, mode_id, target_path)))
2702
1072
if basis_tree is None:
2703
1073
basis_tree = working_tree.basis_tree()
2704
1074
basis_tree.lock_read()
2705
new_sha1 = target_tree.get_file_sha1(file_id)
2706
if (file_id in basis_tree and new_sha1 ==
2707
basis_tree.get_file_sha1(file_id)):
2708
if file_id in merge_modified:
2709
del merge_modified[file_id]
1075
new_sha1 = target_tree.get_file_sha1(target_path)
1076
basis_inter = InterTree.get(basis_tree, target_tree)
1077
basis_path = basis_inter.find_source_path(target_path)
1078
if (basis_path is not None and
1079
new_sha1 == basis_tree.get_file_sha1(basis_path)):
1080
# If the new contents of the file match what is in basis,
1081
# then there is no need to store in merge_modified.
1082
if basis_path in merge_modified:
1083
del merge_modified[basis_path]
2711
merge_modified[file_id] = new_sha1
1085
merge_modified[target_path] = new_sha1
2713
1087
# preserve the execute bit when backing up
2714
if keep_content and executable[0] == executable[1]:
2715
tt.set_executability(executable[1], trans_id)
2716
elif kind[1] is not None:
2717
raise AssertionError(kind[1])
2718
if versioned == (False, True):
2719
tt.version_file(file_id, trans_id)
2720
if versioned == (True, False):
1088
if keep_content and wt_executable == target_executable:
1089
tt.set_executability(target_executable, trans_id)
1090
elif target_kind is not None:
1091
raise AssertionError(target_kind)
1092
if not wt_versioned and target_versioned:
1094
trans_id, file_id=getattr(change, 'file_id', None))
1095
if wt_versioned and not target_versioned:
2721
1096
tt.unversion_file(trans_id)
2722
if (name[1] is not None and
2723
(name[0] != name[1] or parent[0] != parent[1])):
2724
if name[1] == '' and parent[1] is None:
1097
if (target_name is not None
1098
and (wt_name != target_name or change.is_reparented())):
1099
if target_path == '':
2725
1100
parent_trans = ROOT_PARENT
2727
parent_trans = tt.trans_id_file_id(parent[1])
2728
if parent[0] is None and versioned[0]:
2729
tt.adjust_root_path(name[1], parent_trans)
1102
parent_trans = tt.trans_id_file_id(target_parent)
1103
if wt_path == '' and wt_versioned:
1104
tt.adjust_root_path(target_name, parent_trans)
2731
tt.adjust_path(name[1], parent_trans, trans_id)
2732
if executable[0] != executable[1] and kind[1] == "file":
2733
tt.set_executability(executable[1], trans_id)
1106
tt.adjust_path(target_name, parent_trans, trans_id)
1107
if wt_executable != target_executable and target_kind == "file":
1108
tt.set_executability(target_executable, trans_id)
2734
1109
if working_tree.supports_content_filtering():
2735
for index, ((trans_id, mode_id), bytes) in enumerate(
2736
target_tree.iter_files_bytes(deferred_files)):
2737
file_id = deferred_files[index][0]
1110
for (trans_id, mode_id, target_path), bytes in (
1111
target_tree.iter_files_bytes(deferred_files)):
2738
1112
# We're reverting a tree to the target tree so using the
2739
1113
# target tree to find the file path seems the best choice
2740
1114
# here IMO - Ian C 27/Oct/2009
2741
filter_tree_path = target_tree.id2path(file_id)
2742
filters = working_tree._content_filter_stack(filter_tree_path)
2743
bytes = filtered_output_bytes(bytes, filters,
2744
ContentFilterContext(filter_tree_path, working_tree))
1115
filters = working_tree._content_filter_stack(target_path)
1116
bytes = filtered_output_bytes(
1118
ContentFilterContext(target_path, working_tree))
2745
1119
tt.create_file(bytes, trans_id, mode_id)
2747
for (trans_id, mode_id), bytes in target_tree.iter_files_bytes(
1121
for (trans_id, mode_id, target_path), bytes in target_tree.iter_files_bytes(
2749
1123
tt.create_file(bytes, trans_id, mode_id)
2750
1124
tt.fixup_new_roots()
2920
1310
def rollback(self):
2921
1311
"""Reverse all renames that have been performed"""
2922
1312
for from_, to in reversed(self.past_renames):
2923
osutils.rename(to, from_)
1314
os.rename(to, from_)
1315
except OSError as e:
1316
raise TransformRenameFailed(to, from_, str(e), e.errno)
2924
1317
# after rollback, don't reuse _FileMover
2926
pending_deletions = None
1318
self.past_renames = None
1319
self.pending_deletions = None
2928
1321
def apply_deletions(self):
2929
1322
"""Apply all marked deletions"""
2930
1323
for path in self.pending_deletions:
2931
1324
delete_any(path)
2932
1325
# after apply_deletions, don't reuse _FileMover
2934
pending_deletions = None
1326
self.past_renames = None
1327
self.pending_deletions = None
1330
def link_tree(target_tree, source_tree):
1331
"""Where possible, hard-link files in a tree to those in another tree.
1333
:param target_tree: Tree to change
1334
:param source_tree: Tree to hard-link from
1336
with target_tree.transform() as tt:
1337
for change in target_tree.iter_changes(source_tree, include_unchanged=True):
1338
if change.changed_content:
1340
if change.kind != ('file', 'file'):
1342
if change.executable[0] != change.executable[1]:
1344
trans_id = tt.trans_id_tree_path(change.path[1])
1345
tt.delete_contents(trans_id)
1346
tt.create_hardlink(source_tree.abspath(change.path[0]), trans_id)
1350
class PreviewTree(object):
1353
def __init__(self, transform):
1354
self._transform = transform
1355
self._parent_ids = []
1356
self.__by_parent = None
1357
self._path2trans_id_cache = {}
1358
self._all_children_cache = {}
1359
self._final_name_cache = {}
1361
def supports_setting_file_ids(self):
1362
raise NotImplementedError(self.supports_setting_file_ids)
1365
def _by_parent(self):
1366
if self.__by_parent is None:
1367
self.__by_parent = self._transform.by_parent()
1368
return self.__by_parent
1370
def get_parent_ids(self):
1371
return self._parent_ids
1373
def set_parent_ids(self, parent_ids):
1374
self._parent_ids = parent_ids
1376
def get_revision_tree(self, revision_id):
1377
return self._transform._tree.get_revision_tree(revision_id)
1379
def is_locked(self):
1382
def lock_read(self):
1383
# Perhaps in theory, this should lock the TreeTransform?
1384
return lock.LogicalLockResult(self.unlock)
1389
def _path2trans_id(self, path):
1390
"""Look up the trans id associated with a path.
1392
:param path: path to look up, None when the path does not exist
1395
# We must not use None here, because that is a valid value to store.
1396
trans_id = self._path2trans_id_cache.get(path, object)
1397
if trans_id is not object:
1399
segments = osutils.splitpath(path)
1400
cur_parent = self._transform.root
1401
for cur_segment in segments:
1402
for child in self._all_children(cur_parent):
1403
final_name = self._final_name_cache.get(child)
1404
if final_name is None:
1405
final_name = self._transform.final_name(child)
1406
self._final_name_cache[child] = final_name
1407
if final_name == cur_segment:
1411
self._path2trans_id_cache[path] = None
1413
self._path2trans_id_cache[path] = cur_parent
1416
def _all_children(self, trans_id):
1417
children = self._all_children_cache.get(trans_id)
1418
if children is not None:
1420
children = set(self._transform.iter_tree_children(trans_id))
1421
# children in the _new_parent set are provided by _by_parent.
1422
children.difference_update(self._transform._new_parent)
1423
children.update(self._by_parent.get(trans_id, []))
1424
self._all_children_cache[trans_id] = children
1427
def get_file_with_stat(self, path):
1428
return self.get_file(path), None
1430
def is_executable(self, path):
1431
trans_id = self._path2trans_id(path)
1432
if trans_id is None:
1435
return self._transform._new_executability[trans_id]
1438
return self._transform._tree.is_executable(path)
1439
except OSError as e:
1440
if e.errno == errno.ENOENT:
1443
except errors.NoSuchFile:
1446
def has_filename(self, path):
1447
trans_id = self._path2trans_id(path)
1448
if trans_id in self._transform._new_contents:
1450
elif trans_id in self._transform._removed_contents:
1453
return self._transform._tree.has_filename(path)
1455
def get_file_sha1(self, path, stat_value=None):
1456
trans_id = self._path2trans_id(path)
1457
if trans_id is None:
1458
raise errors.NoSuchFile(path)
1459
kind = self._transform._new_contents.get(trans_id)
1461
return self._transform._tree.get_file_sha1(path)
1463
with self.get_file(path) as fileobj:
1464
return osutils.sha_file(fileobj)
1466
def get_file_verifier(self, path, stat_value=None):
1467
trans_id = self._path2trans_id(path)
1468
if trans_id is None:
1469
raise errors.NoSuchFile(path)
1470
kind = self._transform._new_contents.get(trans_id)
1472
return self._transform._tree.get_file_verifier(path)
1474
with self.get_file(path) as fileobj:
1475
return ("SHA1", osutils.sha_file(fileobj))
1477
def kind(self, path):
1478
trans_id = self._path2trans_id(path)
1479
if trans_id is None:
1480
raise errors.NoSuchFile(path)
1481
return self._transform.final_kind(trans_id)
1483
def stored_kind(self, path):
1484
trans_id = self._path2trans_id(path)
1485
if trans_id is None:
1486
raise errors.NoSuchFile(path)
1488
return self._transform._new_contents[trans_id]
1490
return self._transform._tree.stored_kind(path)
1492
def _get_repository(self):
1493
repo = getattr(self._transform._tree, '_repository', None)
1495
repo = self._transform._tree.branch.repository
1498
def _iter_parent_trees(self):
1499
for revision_id in self.get_parent_ids():
1501
yield self.revision_tree(revision_id)
1502
except errors.NoSuchRevisionInTree:
1503
yield self._get_repository().revision_tree(revision_id)
1505
def get_file_size(self, path):
1506
"""See Tree.get_file_size"""
1507
trans_id = self._path2trans_id(path)
1508
if trans_id is None:
1509
raise errors.NoSuchFile(path)
1510
kind = self._transform.final_kind(trans_id)
1513
if trans_id in self._transform._new_contents:
1514
return self._stat_limbo_file(trans_id).st_size
1515
if self.kind(path) == 'file':
1516
return self._transform._tree.get_file_size(path)
1520
def get_reference_revision(self, path):
1521
trans_id = self._path2trans_id(path)
1522
if trans_id is None:
1523
raise errors.NoSuchFile(path)
1524
reference_revision = self._transform._new_reference_revision.get(trans_id)
1525
if reference_revision is None:
1526
return self._transform._tree.get_reference_revision(path)
1527
return reference_revision
1529
def tree_kind(self, trans_id):
1530
path = self._tree_id_paths.get(trans_id)
1533
kind = self._tree.path_content_summary(path)[0]
1534
if kind == 'missing':
added
removed
breezy/transform.py
