def __call__(self, oldrevid, newrevid, newparents):
"""Replay a commit in a working tree, with a different base.
:param oldrevid: Old revision id
:param newrevid: New revision id
:param newparents: New parent revision ids
"""
repository = self.wt.branch.repository
if self.merge_type is None:
from bzrlib.merge import Merge3Merger
merge_type = Merge3Merger
else:
merge_type = self.merge_type
oldrev = self.wt.branch.repository.get_revision(oldrevid)
# Make sure there are no conflicts or pending merges/changes
# in the working tree
complete_revert(self.wt, [newparents[0]])
assert not self.wt.changes_from(self.wt.basis_tree()).has_changed(), "Changes in rev"
oldtree = repository.revision_tree(oldrevid)
self.state.write_active_revid(oldrevid)
merger = Merger(self.wt.branch, this_tree=self.wt)
merger.set_other_revision(oldrevid, self.wt.branch)
base_revid = self.determine_base(oldrevid, oldrev.parent_ids,
newrevid, newparents)
mutter('replaying %r as %r with base %r and new parents %r' %
(oldrevid, newrevid, base_revid, newparents))
merger.set_base_revision(base_revid, self.wt.branch)
merger.merge_type = merge_type
merger.do_merge()
for newparent in newparents[1:]:
self.wt.add_pending_merge(newparent)
self.commit_rebase(oldrev, newrevid)
self.state.write_active_revid(None)
