def test_plan_with_already_merged_skip_merges(self):
"""We need to use a merge base that makes sense.
A
| \
B D
| \|
C E
Rebasing E on C should result in:
A -> B -> C -> D'
with a plan of:
D -> (D', [C])
"""
parents_map = {
"A": (),
"B": ("A",),
"C": ("B",),
"D": ("A",),
"E": ("D", "B")
}
graph = Graph(DictParentsProvider(parents_map))
self.assertEquals({"D": ("D'", ("C",))},
generate_simple_plan(["D", "E"], "D", None, "C",
graph, lambda y, _: y+"'", True))
def test_simple_plan_creator(self):
wt = self.make_branch_and_tree('.')
b = wt.branch
file('hello', 'w').write('hello world')
wt.add('hello')
wt.commit(message='add hello', rev_id="bla")
file('hello', 'w').write('world')
wt.commit(message='change hello', rev_id="bloe")
wt.set_last_revision("bla")
b.generate_revision_history("bla")
file('hello', 'w').write('world')
wt.commit(message='change hello', rev_id="bla2")
b.repository.lock_read()
graph = b.repository.get_graph()
self.assertEquals({'bla2': ('newbla2', ("bloe",))},
generate_simple_plan(
graph.find_difference(b.last_revision(),"bla")[0],
"bla2", None, "bloe", graph, lambda y, _: "new"+y))
b.repository.unlock()
def run(
self,
upstream_location=None,
onto=None,
revision=None,
merge_type=None,
verbose=False,
dry_run=False,
always_rebase_merges=False,
pending_merges=False,
directory=".",
):
from bzrlib.branch import Branch
from bzrlib.revisionspec import RevisionSpec
from bzrlib.workingtree import WorkingTree
from bzrlib.plugins.rewrite.rebase import (
generate_simple_plan,
rebase,
RebaseState1,
WorkingTreeRevisionRewriter,
regenerate_default_revid,
rebase_todo,
)
if revision is not None and pending_merges:
raise BzrCommandError(gettext("--revision and --pending-merges are mutually exclusive"))
wt = WorkingTree.open_containing(directory)[0]
wt.lock_write()
try:
state = RebaseState1(wt)
if upstream_location is None:
if pending_merges:
upstream_location = directory
else:
upstream_location = wt.branch.get_parent()
if upstream_location is None:
raise BzrCommandError(gettext("No upstream branch specified."))
note(gettext("Rebasing on %s"), upstream_location)
upstream = Branch.open_containing(upstream_location)[0]
upstream_repository = upstream.repository
upstream_revision = upstream.last_revision()
# Abort if there already is a plan file
if state.has_plan():
raise BzrCommandError(
gettext(
"A rebase operation was interrupted. "
"Continue using 'bzr rebase-continue' or abort using 'bzr "
"rebase-abort'"
)
)
start_revid = None
stop_revid = None
if revision is not None:
if len(revision) == 1:
if revision[0] is not None:
stop_revid = revision[0].as_revision_id(wt.branch)
elif len(revision) == 2:
if revision[0] is not None:
start_revid = revision[0].as_revision_id(wt.branch)
if revision[1] is not None:
stop_revid = revision[1].as_revision_id(wt.branch)
else:
raise BzrCommandError(gettext("--revision takes only one or two arguments"))
if pending_merges:
wt_parents = wt.get_parent_ids()
if len(wt_parents) in (0, 1):
raise BzrCommandError(gettext("No pending merges present."))
elif len(wt_parents) > 2:
raise BzrCommandError(gettext("Rebasing more than one pending merge not supported"))
stop_revid = wt_parents[1]
assert stop_revid is not None, "stop revid invalid"
# Check for changes in the working tree.
if not pending_merges and wt.basis_tree().changes_from(wt).has_changed():
raise UncommittedChanges(wt)
# Pull required revisions
wt.branch.repository.fetch(upstream_repository, upstream_revision)
if onto is None:
onto = upstream.last_revision()
else:
rev_spec = RevisionSpec.from_string(onto)
onto = rev_spec.as_revision_id(upstream)
wt.branch.repository.fetch(upstream_repository, onto)
if stop_revid is None:
stop_revid = wt.branch.last_revision()
repo_graph = wt.branch.repository.get_graph()
our_new, onto_unique = repo_graph.find_difference(stop_revid, onto)
if start_revid is None:
if not onto_unique:
self.outf.write(gettext("No revisions to rebase.\n"))
return
if not our_new:
self.outf.write(gettext("Base branch is descendant of current " "branch. Pulling instead.\n"))
if not dry_run:
wt.pull(upstream, onto)
return
# else: include extra revisions needed to make start_revid mean
# something.
# Create plan
replace_map = generate_simple_plan(
our_new,
start_revid,
stop_revid,
onto,
repo_graph,
lambda revid, ps: regenerate_default_revid(wt.branch.repository, revid),
not always_rebase_merges,
)
if verbose or dry_run:
todo = list(rebase_todo(wt.branch.repository, replace_map))
note(gettext("%d revisions will be rebased:") % len(todo))
for revid in todo:
note("%s" % revid)
if not dry_run:
# Write plan file
state.write_plan(replace_map)
replayer = WorkingTreeRevisionRewriter(wt, state, merge_type=merge_type)
finish_rebase(state, wt, replace_map, replayer)
finally:
wt.unlock()
