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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"""WorkingTree object and friends.
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A WorkingTree represents the editable working copy of a branch.
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Operations which represent the WorkingTree are also done here,
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such as renaming or adding files. The WorkingTree has an inventory
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which is updated by these operations. A commit produces a
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Operations which represent the WorkingTree are also done here,
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such as renaming or adding files. The WorkingTree has an inventory
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which is updated by these operations. A commit produces a
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new revision based on the workingtree and its inventory.
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At the moment every WorkingTree has its own branch. Remote
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conflicts as _mod_conflicts,
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revision as _mod_revision,
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import bzrlib.branch
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from bzrlib.transport import get_transport
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from bzrlib.workingtree_4 import (
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from bzrlib.workingtree_4 import WorkingTreeFormat4
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from bzrlib import symbol_versioning
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from bzrlib.decorators import needs_read_lock, needs_write_lock
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from bzrlib.lock import LogicalLockResult
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from bzrlib.lockable_files import LockableFiles
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from bzrlib.inventory import InventoryEntry, Inventory, ROOT_ID, TreeReference
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from bzrlib.lockable_files import LockableFiles, TransportLock
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from bzrlib.lockdir import LockDir
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import bzrlib.mutabletree
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from bzrlib.mutabletree import needs_tree_write_lock
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from bzrlib import osutils
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from bzrlib.osutils import (
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supports_executable,
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from bzrlib.filters import filtered_input_file
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from bzrlib.trace import mutter, note
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from bzrlib.transport.local import LocalTransport
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from bzrlib.revision import CURRENT_REVISION
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from bzrlib.progress import DummyProgress, ProgressPhase
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from bzrlib.revision import NULL_REVISION, CURRENT_REVISION
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from bzrlib.rio import RioReader, rio_file, Stanza
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from bzrlib.symbol_versioning import (
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DEPRECATED_PARAMETER,
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from bzrlib.symbol_versioning import (deprecated_passed,
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DEPRECATED_PARAMETER,
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MERGE_MODIFIED_HEADER_1 = "BZR merge-modified list format 1"
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# TODO: Modifying the conflict objects or their type is currently nearly
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# impossible as there is no clear relationship between the working tree format
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# and the conflict list file format.
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CONFLICT_HEADER_1 = "BZR conflict list format 1"
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ERROR_PATH_NOT_FOUND = 3 # WindowsError errno code, equivalent to ENOENT
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self._control_files.break_lock()
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self.branch.break_lock()
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def _get_check_refs(self):
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"""Return the references needed to perform a check of this tree.
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The default implementation returns no refs, and is only suitable for
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trees that have no local caching and can commit on ghosts at any time.
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:seealso: bzrlib.check for details about check_refs.
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def requires_rich_root(self):
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return self._format.requires_rich_root
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def supports_tree_reference(self):
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def supports_content_filtering(self):
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return self._format.supports_content_filtering()
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def supports_views(self):
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return self.views.supports_views()
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def _set_inventory(self, inv, dirty):
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"""Set the internal cached inventory.
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def has_filename(self, filename):
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return osutils.lexists(self.abspath(filename))
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def get_file(self, file_id, path=None, filtered=True):
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return self.get_file_with_stat(file_id, path, filtered=filtered)[0]
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def get_file(self, file_id, path=None):
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return self.get_file_with_stat(file_id, path)[0]
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def get_file_with_stat(self, file_id, path=None, filtered=True,
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"""See Tree.get_file_with_stat."""
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def get_file_with_stat(self, file_id, path=None, _fstat=os.fstat):
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"""See MutableTree.get_file_with_stat."""
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path = self.id2path(file_id)
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file_obj = self.get_file_byname(path, filtered=False)
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stat_value = _fstat(file_obj.fileno())
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if filtered and self.supports_content_filtering():
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filters = self._content_filter_stack(path)
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file_obj = filtered_input_file(file_obj, filters)
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return (file_obj, stat_value)
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def get_file_text(self, file_id, path=None, filtered=True):
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return self.get_file(file_id, path=path, filtered=filtered).read()
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def get_file_byname(self, filename, filtered=True):
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path = self.abspath(filename)
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if filtered and self.supports_content_filtering():
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filters = self._content_filter_stack(filename)
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return filtered_input_file(f, filters)
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def get_file_lines(self, file_id, path=None, filtered=True):
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"""See Tree.get_file_lines()"""
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file = self.get_file(file_id, path, filtered=filtered)
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return file.readlines()
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file_obj = self.get_file_byname(path)
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return (file_obj, _fstat(file_obj.fileno()))
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def get_file_text(self, file_id):
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return self.get_file(file_id).read()
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def get_file_byname(self, filename):
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return file(self.abspath(filename), 'rb')
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def annotate_iter(self, file_id, default_revision=CURRENT_REVISION):
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incorrectly attributed to CURRENT_REVISION (but after committing, the
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attribution will be correct).
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maybe_file_parent_keys = []
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for parent_id in self.get_parent_ids():
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parent_tree = self.revision_tree(parent_id)
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except errors.NoSuchRevisionInTree:
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parent_tree = self.branch.repository.revision_tree(parent_id)
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parent_tree.lock_read()
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if file_id not in parent_tree:
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ie = parent_tree.inventory[file_id]
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if ie.kind != 'file':
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# Note: this is slightly unnecessary, because symlinks and
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# directories have a "text" which is the empty text, and we
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# know that won't mess up annotations. But it seems cleaner
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parent_text_key = (file_id, ie.revision)
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if parent_text_key not in maybe_file_parent_keys:
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maybe_file_parent_keys.append(parent_text_key)
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graph = _mod_graph.Graph(self.branch.repository.texts)
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heads = graph.heads(maybe_file_parent_keys)
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file_parent_keys = []
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for key in maybe_file_parent_keys:
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file_parent_keys.append(key)
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# Now we have the parents of this content
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annotator = self.branch.repository.texts.get_annotator()
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text = self.get_file(file_id).read()
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this_key =(file_id, default_revision)
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annotator.add_special_text(this_key, file_parent_keys, text)
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annotations = [(key[-1], line)
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for key, line in annotator.annotate_flat(this_key)]
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basis = self.basis_tree()
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changes = self.iter_changes(basis, True, [self.id2path(file_id)],
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require_versioned=True).next()
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changed_content, kind = changes[2], changes[6]
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if not changed_content:
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return basis.annotate_iter(file_id)
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if kind[0] != 'file':
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old_lines = list(basis.annotate_iter(file_id))
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for tree in self.branch.repository.revision_trees(
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self.get_parent_ids()[1:]):
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if file_id not in tree:
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old.append(list(tree.annotate_iter(file_id)))
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return annotate.reannotate(old, self.get_file(file_id).readlines(),
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def _get_ancestors(self, default_revision):
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ancestors = set([default_revision])
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kind = 'tree-reference'
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return kind, None, None, None
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elif kind == 'symlink':
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target = osutils.readlink(abspath)
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return ('symlink', None, None, target)
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return ('symlink', None, None, os.readlink(abspath))
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return (kind, None, None, None)
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def _file_content_summary(self, path, stat_result):
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size = stat_result.st_size
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executable = self._is_executable_from_path_and_stat(path, stat_result)
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# try for a stat cache lookup
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return ('file', size, executable, self._sha_from_stat(
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def _check_parents_for_ghosts(self, revision_ids, allow_leftmost_as_ghost):
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"""Common ghost checking functionality from set_parent_*.
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branch.last_revision().
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from bzrlib.merge import Merger, Merge3Merger
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merger = Merger(self.branch, this_tree=self)
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# check that there are no local alterations
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if not force and self.has_changes():
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raise errors.UncommittedChanges(self)
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if to_revision is None:
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to_revision = _mod_revision.ensure_null(branch.last_revision())
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merger.other_rev_id = to_revision
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if _mod_revision.is_null(merger.other_rev_id):
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raise errors.NoCommits(branch)
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self.branch.fetch(branch, last_revision=merger.other_rev_id)
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merger.other_basis = merger.other_rev_id
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merger.other_tree = self.branch.repository.revision_tree(
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merger.other_branch = branch
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if from_revision is None:
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merger.set_base_revision(from_revision, branch)
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if merger.base_rev_id == merger.other_rev_id:
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raise errors.PointlessMerge
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merger.backup_files = False
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if merge_type is None:
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merger.merge_type = Merge3Merger
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merger.merge_type = merge_type
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merger.set_interesting_files(None)
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merger.show_base = False
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merger.reprocess = False
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conflicts = merger.do_merge()
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pb = bzrlib.ui.ui_factory.nested_progress_bar()
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merger = Merger(self.branch, this_tree=self, pb=pb)
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merger.pp = ProgressPhase("Merge phase", 5, pb)
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merger.pp.next_phase()
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# check that there are no
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merger.check_basis(check_clean=True, require_commits=False)
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if to_revision is None:
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to_revision = _mod_revision.ensure_null(branch.last_revision())
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merger.other_rev_id = to_revision
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if _mod_revision.is_null(merger.other_rev_id):
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raise errors.NoCommits(branch)
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self.branch.fetch(branch, last_revision=merger.other_rev_id)
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merger.other_basis = merger.other_rev_id
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merger.other_tree = self.branch.repository.revision_tree(
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merger.other_branch = branch
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merger.pp.next_phase()
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if from_revision is None:
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merger.set_base_revision(from_revision, branch)
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if merger.base_rev_id == merger.other_rev_id:
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raise errors.PointlessMerge
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merger.backup_files = False
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if merge_type is None:
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merger.merge_type = Merge3Merger
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merger.merge_type = merge_type
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merger.set_interesting_files(None)
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merger.show_base = False
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merger.reprocess = False
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conflicts = merger.do_merge()
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def merge_modified(self):
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"""Return a dictionary of files modified by a merge.
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The list is initialized by WorkingTree.set_merge_modified, which is
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The list is initialized by WorkingTree.set_merge_modified, which is
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typically called after we make some automatic updates to the tree
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because of a merge.
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tree_transport = self.bzrdir.root_transport.clone(sub_path)
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if tree_transport.base != branch_transport.base:
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tree_bzrdir = format.initialize_on_transport(tree_transport)
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branch.BranchReferenceFormat().initialize(tree_bzrdir,
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target_branch=new_branch)
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branch.BranchReferenceFormat().initialize(tree_bzrdir, new_branch)
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tree_bzrdir = branch_bzrdir
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wt = tree_bzrdir.create_workingtree(_mod_revision.NULL_REVISION)
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wt = tree_bzrdir.create_workingtree(NULL_REVISION)
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wt.set_parent_ids(self.get_parent_ids())
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my_inv = self.inventory
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child_inv = inventory.Inventory(root_id=None)
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child_inv = Inventory(root_id=None)
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new_root = my_inv[file_id]
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my_inv.remove_recursive_id(file_id)
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new_root.parent_id = None
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self._serialize(self._inventory, sio)
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self._transport.put_file('inventory', sio,
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mode=self.bzrdir._get_file_mode())
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mode=self._control_files._file_mode)
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self._inventory_is_modified = False
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def _kind(self, relpath):
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return osutils.file_kind(self.abspath(relpath))
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def list_files(self, include_root=False, from_dir=None, recursive=True):
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"""List all files as (path, class, kind, id, entry).
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def list_files(self, include_root=False):
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"""Recursively list all files as (path, class, kind, id, entry).
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Lists, but does not descend into unversioned directories.
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This does not include files that have been deleted in this
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tree. Skips the control directory.
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:param include_root: if True, return an entry for the root
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:param from_dir: start from this directory or None for the root
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:param recursive: whether to recurse into subdirectories or not
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Skips the control directory.
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# list_files is an iterator, so @needs_read_lock doesn't work properly
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# with it. So callers should be careful to always read_lock the tree.
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fk_entries = {'directory':TreeDirectory, 'file':TreeFile, 'symlink':TreeLink}
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# directory file_id, relative path, absolute path, reverse sorted children
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if from_dir is not None:
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from_dir_id = inv.path2id(from_dir)
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if from_dir_id is None:
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# Directory not versioned
1173
from_dir_abspath = pathjoin(self.basedir, from_dir)
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from_dir_id = inv.root.file_id
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from_dir_abspath = self.basedir
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children = os.listdir(from_dir_abspath)
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children = os.listdir(self.basedir)
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children.sort()
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# jam 20060527 The kernel sized tree seems equivalent whether we
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# jam 20060527 The kernel sized tree seems equivalent whether we
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# use a deque and popleft to keep them sorted, or if we use a plain
1181
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# list and just reverse() them.
1182
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children = collections.deque(children)
1183
stack = [(from_dir_id, u'', from_dir_abspath, children)]
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stack = [(inv.root.file_id, u'', self.basedir, children)]
1185
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from_dir_id, from_dir_relpath, from_dir_abspath, children = stack[-1]
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except KeyError:
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yield fp[1:], c, fk, None, TreeEntry()
1244
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if fk != 'directory':
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# But do this child first if recursing down
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new_children = os.listdir(fap)
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new_children = collections.deque(new_children)
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stack.append((f_ie.file_id, fp, fap, new_children))
1253
# Break out of inner loop,
1254
# so that we start outer loop with child
1177
# But do this child first
1178
new_children = os.listdir(fap)
1180
new_children = collections.deque(new_children)
1181
stack.append((f_ie.file_id, fp, fap, new_children))
1182
# Break out of inner loop,
1183
# so that we start outer loop with child
1257
1186
# if we finished all children, pop it off the stack
1494
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from_tail = splitpath(from_rel)[-1]
1495
1423
from_id = inv.path2id(from_rel)
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if from_id is None:
1497
# if file is missing in the inventory maybe it's in the basis_tree
1498
basis_tree = self.branch.basis_tree()
1499
from_id = basis_tree.path2id(from_rel)
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raise errors.BzrRenameFailedError(from_rel,to_rel,
1502
errors.NotVersionedError(path=str(from_rel)))
1503
# put entry back in the inventory so we can rename it
1504
from_entry = basis_tree.inventory[from_id].copy()
1507
from_entry = inv[from_id]
1425
raise errors.BzrRenameFailedError(from_rel,to_rel,
1426
errors.NotVersionedError(path=str(from_rel)))
1427
from_entry = inv[from_id]
1508
1428
from_parent_id = from_entry.parent_id
1509
1429
to_dir, to_tail = os.path.split(to_rel)
1510
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to_dir_id = inv.path2id(to_dir)
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:raises: NoSuchId if any fileid is not currently versioned.
1574
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for file_id in file_ids:
1575
if file_id not in self._inventory:
1576
raise errors.NoSuchId(self, file_id)
1577
for file_id in file_ids:
1578
1495
if self._inventory.has_id(file_id):
1579
1496
self._inventory.remove_recursive_id(file_id)
1498
raise errors.NoSuchId(self, file_id)
1580
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if len(file_ids):
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# in the future this should just set a dirty bit to wait for the
1500
# in the future this should just set a dirty bit to wait for the
1582
1501
# final unlock. However, until all methods of workingtree start
1583
# with the current in -memory inventory rather than triggering
1502
# with the current in -memory inventory rather than triggering
1584
1503
# a read, it is more complex - we need to teach read_inventory
1585
1504
# to know when to read, and when to not read first... and possibly
1586
1505
# to save first when the in memory one may be corrupted.
1587
1506
# so for now, we just only write it if it is indeed dirty.
1588
1507
# - RBC 20060907
1589
1508
self._write_inventory(self._inventory)
1591
1510
def _iter_conflicts(self):
1592
1511
conflicted = set()
1593
1512
for info in self.list_files():
1602
1521
@needs_write_lock
1603
1522
def pull(self, source, overwrite=False, stop_revision=None,
1604
change_reporter=None, possible_transports=None, local=False):
1523
change_reporter=None, possible_transports=None):
1524
top_pb = bzrlib.ui.ui_factory.nested_progress_bar()
1605
1525
source.lock_read()
1527
pp = ProgressPhase("Pull phase", 2, top_pb)
1607
1529
old_revision_info = self.branch.last_revision_info()
1608
1530
basis_tree = self.basis_tree()
1609
1531
count = self.branch.pull(source, overwrite, stop_revision,
1610
possible_transports=possible_transports,
1532
possible_transports=possible_transports)
1612
1533
new_revision_info = self.branch.last_revision_info()
1613
1534
if new_revision_info != old_revision_info:
1614
1536
repository = self.branch.repository
1537
pb = bzrlib.ui.ui_factory.nested_progress_bar()
1615
1538
basis_tree.lock_read()
1617
1540
new_basis_tree = self.branch.basis_tree()
1620
1543
new_basis_tree,
1622
1545
this_tree=self,
1624
1547
change_reporter=change_reporter)
1625
basis_root_id = basis_tree.get_root_id()
1626
new_root_id = new_basis_tree.get_root_id()
1627
if basis_root_id != new_root_id:
1628
self.set_root_id(new_root_id)
1548
if (basis_tree.inventory.root is None and
1549
new_basis_tree.inventory.root is not None):
1550
self.set_root_id(new_basis_tree.get_root_id())
1630
1553
basis_tree.unlock()
1631
1554
# TODO - dedup parents list with things merged by pull ?
1632
1555
# reuse the revisiontree we merged against to set the new
1634
1557
parent_trees = [(self.branch.last_revision(), new_basis_tree)]
1635
# we have to pull the merge trees out again, because
1636
# merge_inner has set the ids. - this corner is not yet
1558
# we have to pull the merge trees out again, because
1559
# merge_inner has set the ids. - this corner is not yet
1637
1560
# layered well enough to prevent double handling.
1638
1561
# XXX TODO: Fix the double handling: telling the tree about
1639
1562
# the already known parent data is wasteful.
1799
1721
raise errors.ObjectNotLocked(self)
1801
1723
def lock_read(self):
1802
"""Lock the tree for reading.
1804
This also locks the branch, and can be unlocked via self.unlock().
1806
:return: A bzrlib.lock.LogicalLockResult.
1724
"""See Branch.lock_read, and WorkingTree.unlock."""
1808
1725
if not self.is_locked():
1809
1726
self._reset_data()
1810
1727
self.branch.lock_read()
1812
self._control_files.lock_read()
1813
return LogicalLockResult(self.unlock)
1729
return self._control_files.lock_read()
1815
1731
self.branch.unlock()
1818
1734
def lock_tree_write(self):
1819
"""See MutableTree.lock_tree_write, and WorkingTree.unlock.
1821
:return: A bzrlib.lock.LogicalLockResult.
1735
"""See MutableTree.lock_tree_write, and WorkingTree.unlock."""
1823
1736
if not self.is_locked():
1824
1737
self._reset_data()
1825
1738
self.branch.lock_read()
1827
self._control_files.lock_write()
1828
return LogicalLockResult(self.unlock)
1740
return self._control_files.lock_write()
1830
1742
self.branch.unlock()
1833
1745
def lock_write(self):
1834
"""See MutableTree.lock_write, and WorkingTree.unlock.
1836
:return: A bzrlib.lock.LogicalLockResult.
1746
"""See MutableTree.lock_write, and WorkingTree.unlock."""
1838
1747
if not self.is_locked():
1839
1748
self._reset_data()
1840
1749
self.branch.lock_write()
1842
self._control_files.lock_write()
1843
return LogicalLockResult(self.unlock)
1751
return self._control_files.lock_write()
1845
1753
self.branch.unlock()
1901
1805
# as commit already has that ready-to-use [while the format is the
1902
1806
# same, that is].
1904
# this double handles the inventory - unpack and repack -
1808
# this double handles the inventory - unpack and repack -
1905
1809
# but is easier to understand. We can/should put a conditional
1906
1810
# in here based on whether the inventory is in the latest format
1907
1811
# - perhaps we should repack all inventories on a repository
1909
1813
# the fast path is to copy the raw xml from the repository. If the
1910
# xml contains 'revision_id="', then we assume the right
1814
# xml contains 'revision_id="', then we assume the right
1911
1815
# revision_id is set. We must check for this full string, because a
1912
1816
# root node id can legitimately look like 'revision_id' but cannot
1913
1817
# contain a '"'.
1914
xml = self.branch.repository._get_inventory_xml(new_revision)
1818
xml = self.branch.repository.get_inventory_xml(new_revision)
1915
1819
firstline = xml.split('\n', 1)[0]
1916
if (not 'revision_id="' in firstline or
1820
if (not 'revision_id="' in firstline or
1917
1821
'format="7"' not in firstline):
1918
inv = self.branch.repository._serializer.read_inventory_from_string(
1822
inv = self.branch.repository.deserialise_inventory(
1920
1824
xml = self._create_basis_xml_from_inventory(new_revision, inv)
1921
1825
self._write_basis_inventory(xml)
1922
1826
except (errors.NoSuchRevision, errors.RevisionNotPresent):
1926
1830
"""Read the cached basis inventory."""
1927
1831
path = self._basis_inventory_name()
1928
1832
return self._transport.get_bytes(path)
1930
1834
@needs_read_lock
1931
1835
def read_working_inventory(self):
1932
1836
"""Read the working inventory.
1934
1838
:raises errors.InventoryModified: read_working_inventory will fail
1935
1839
when the current in memory inventory has been modified.
1937
# conceptually this should be an implementation detail of the tree.
1841
# conceptually this should be an implementation detail of the tree.
1938
1842
# XXX: Deprecate this.
1939
1843
# ElementTree does its own conversion from UTF-8, so open in
1941
1845
if self._inventory_is_modified:
1942
1846
raise errors.InventoryModified(self)
1943
f = self._transport.get('inventory')
1945
result = self._deserialize(f)
1847
result = self._deserialize(self._transport.get('inventory'))
1948
1848
self._set_inventory(result, dirty=False)
2194
2091
def unlock(self):
2195
2092
"""See Branch.unlock.
2197
2094
WorkingTree locking just uses the Branch locking facilities.
2198
2095
This is current because all working trees have an embedded branch
2199
2096
within them. IF in the future, we were to make branch data shareable
2200
between multiple working trees, i.e. via shared storage, then we
2097
between multiple working trees, i.e. via shared storage, then we
2201
2098
would probably want to lock both the local tree, and the branch.
2203
2100
raise NotImplementedError(self.unlock)
2207
def update(self, change_reporter=None, possible_transports=None,
2208
revision=None, old_tip=_marker):
2102
def update(self, change_reporter=None, possible_transports=None):
2209
2103
"""Update a working tree along its branch.
2211
2105
This will update the branch if its bound too, which means we have
2265
2152
# cant set that until we update the working trees last revision to be
2266
2153
# one from the new branch, because it will just get absorbed by the
2267
2154
# parent de-duplication logic.
2269
2156
# We MUST save it even if an error occurs, because otherwise the users
2270
2157
# local work is unreferenced and will appear to have been lost.
2274
2161
last_rev = self.get_parent_ids()[0]
2275
2162
except IndexError:
2276
2163
last_rev = _mod_revision.NULL_REVISION
2277
if revision is None:
2278
revision = self.branch.last_revision()
2280
old_tip = old_tip or _mod_revision.NULL_REVISION
2282
if not _mod_revision.is_null(old_tip) and old_tip != last_rev:
2283
# the branch we are bound to was updated
2284
# merge those changes in first
2285
base_tree = self.basis_tree()
2286
other_tree = self.branch.repository.revision_tree(old_tip)
2287
nb_conflicts = merge.merge_inner(self.branch, other_tree,
2288
base_tree, this_tree=self,
2289
change_reporter=change_reporter)
2291
self.add_parent_tree((old_tip, other_tree))
2292
trace.note('Rerun update after fixing the conflicts.')
2295
if last_rev != _mod_revision.ensure_null(revision):
2296
# the working tree is up to date with the branch
2297
# we can merge the specified revision from master
2298
to_tree = self.branch.repository.revision_tree(revision)
2299
to_root_id = to_tree.get_root_id()
2164
if last_rev != _mod_revision.ensure_null(self.branch.last_revision()):
2165
# merge tree state up to new branch tip.
2301
2166
basis = self.basis_tree()
2302
2167
basis.lock_read()
2304
if (basis.inventory.root is None
2305
or basis.inventory.root.file_id != to_root_id):
2306
self.set_root_id(to_root_id)
2169
to_tree = self.branch.basis_tree()
2170
if basis.inventory.root is None:
2171
self.set_root_id(to_tree.get_root_id())
2173
result += merge.merge_inner(
2178
change_reporter=change_reporter)
2311
# determine the branch point
2312
graph = self.branch.repository.get_graph()
2313
base_rev_id = graph.find_unique_lca(self.branch.last_revision(),
2315
base_tree = self.branch.repository.revision_tree(base_rev_id)
2317
nb_conflicts = merge.merge_inner(self.branch, to_tree, base_tree,
2319
change_reporter=change_reporter)
2320
self.set_last_revision(revision)
2321
2181
# TODO - dedup parents list with things merged by pull ?
2322
2182
# reuse the tree we've updated to to set the basis:
2323
parent_trees = [(revision, to_tree)]
2183
parent_trees = [(self.branch.last_revision(), to_tree)]
2324
2184
merges = self.get_parent_ids()[1:]
2325
2185
# Ideally we ask the tree for the trees here, that way the working
2326
# tree can decide whether to give us the entire tree or give us a
2186
# tree can decide whether to give us teh entire tree or give us a
2327
2187
# lazy initialised tree. dirstate for instance will have the trees
2328
2188
# in ram already, whereas a last-revision + basis-inventory tree
2329
2189
# will not, but also does not need them when setting parents.
2330
2190
for parent in merges:
2331
2191
parent_trees.append(
2332
2192
(parent, self.branch.repository.revision_tree(parent)))
2333
if not _mod_revision.is_null(old_tip):
2193
if (old_tip is not None and not _mod_revision.is_null(old_tip)):
2334
2194
parent_trees.append(
2335
2195
(old_tip, self.branch.repository.revision_tree(old_tip)))
2336
2196
self.set_parent_trees(parent_trees)
2337
2197
last_rev = parent_trees[0][0]
2199
# the working tree had the same last-revision as the master
2200
# branch did. We may still have pivot local work from the local
2201
# branch into old_tip:
2202
if (old_tip is not None and not _mod_revision.is_null(old_tip)):
2203
self.add_parent_tree_id(old_tip)
2204
if (old_tip is not None and not _mod_revision.is_null(old_tip)
2205
and old_tip != last_rev):
2206
# our last revision was not the prior branch last revision
2207
# and we have converted that last revision to a pending merge.
2208
# base is somewhere between the branch tip now
2209
# and the now pending merge
2211
# Since we just modified the working tree and inventory, flush out
2212
# the current state, before we modify it again.
2213
# TODO: jam 20070214 WorkingTree3 doesn't require this, dirstate
2214
# requires it only because TreeTransform directly munges the
2215
# inventory and calls tree._write_inventory(). Ultimately we
2216
# should be able to remove this extra flush.
2218
graph = self.branch.repository.get_graph()
2219
base_rev_id = graph.find_unique_lca(self.branch.last_revision(),
2221
base_tree = self.branch.repository.revision_tree(base_rev_id)
2222
other_tree = self.branch.repository.revision_tree(old_tip)
2223
result += merge.merge_inner(
2228
change_reporter=change_reporter)
2340
2231
def _write_hashcache_if_dirty(self):
2341
2232
"""Write out the hashcache if it is dirty."""