def rebasenode(repo, rev, p1, base, state, collapse, target):
'Rebase a single revision rev on top of p1 using base as merge ancestor'
# Merge phase
# Update to target and merge it with local
if repo['.'].rev() != p1:
repo.ui.debug(" update to %d:%s\n" % (p1, repo[p1]))
merge.update(repo, p1, False, True, False)
else:
repo.ui.debug(" already in target\n")
repo.dirstate.write(repo.currenttransaction())
repo.ui.debug(" merge against %d:%s\n" % (rev, repo[rev]))
if base is not None:
repo.ui.debug(" detach base %d:%s\n" % (base, repo[base]))
# When collapsing in-place, the parent is the common ancestor, we
# have to allow merging with it.
stats = merge.update(repo, rev, True, True, False, base, collapse,
labels=['dest', 'source'])
if collapse:
copies.duplicatecopies(repo, rev, target)
else:
# If we're not using --collapse, we need to
# duplicate copies between the revision we're
# rebasing and its first parent, but *not*
# duplicate any copies that have already been
# performed in the destination.
p1rev = repo[rev].p1().rev()
copies.duplicatecopies(repo, rev, p1rev, skiprev=target)
return stats
def rebasenode(repo, rev, p1, base, state, collapse, target):
'Rebase a single revision rev on top of p1 using base as merge ancestor'
# Merge phase
# Update to target and merge it with local
if repo['.'].rev() != p1:
repo.ui.debug(" update to %d:%s\n" % (p1, repo[p1]))
merge.update(repo, p1, False, True, False)
else:
repo.ui.debug(" already in target\n")
repo.dirstate.write()
repo.ui.debug(" merge against %d:%s\n" % (rev, repo[rev]))
if base is not None:
repo.ui.debug(" detach base %d:%s\n" % (base, repo[base]))
# When collapsing in-place, the parent is the common ancestor, we
# have to allow merging with it.
stats = merge.update(repo, rev, True, True, False, base, collapse,
labels=['dest', 'source'])
if collapse:
copies.duplicatecopies(repo, rev, target)
else:
# If we're not using --collapse, we need to
# duplicate copies between the revision we're
# rebasing and its first parent, but *not*
# duplicate any copies that have already been
# performed in the destination.
p1rev = repo[rev].p1().rev()
copies.duplicatecopies(repo, rev, p1rev, skiprev=target)
return stats
def rebasenode(repo, rev, p1, state, collapse, target):
'Rebase a single revision'
# Merge phase
# Update to target and merge it with local
if repo['.'].rev() != repo[p1].rev():
repo.ui.debug(" update to %d:%s\n" % (repo[p1].rev(), repo[p1]))
merge.update(repo, p1, False, True, False)
else:
repo.ui.debug(" already in target\n")
repo.dirstate.write()
repo.ui.debug(" merge against %d:%s\n" % (repo[rev].rev(), repo[rev]))
if repo[rev].rev() == repo[min(state)].rev():
# Case (1) initial changeset of a non-detaching rebase.
# Let the merge mechanism find the base itself.
base = None
elif not repo[rev].p2():
# Case (2) detaching the node with a single parent, use this parent
base = repo[rev].p1().node()
else:
# In case of merge, we need to pick the right parent as merge base.
#
# Imagine we have:
# - M: currently rebase revision in this step
# - A: one parent of M
# - B: second parent of M
# - D: destination of this merge step (p1 var)
#
# If we are rebasing on D, D is the successors of A or B. The right
# merge base is the one D succeed to. We pretend it is B for the rest
# of this comment
#
# If we pick B as the base, the merge involves:
# - changes from B to M (actual changeset payload)
# - changes from B to D (induced by rebase) as D is a rebased
# version of B)
# Which exactly represent the rebase operation.
#
# If we pick the A as the base, the merge involves
# - changes from A to M (actual changeset payload)
# - changes from A to D (with include changes between unrelated A and B
# plus changes induced by rebase)
# Which does not represent anything sensible and creates a lot of
# conflicts.
for p in repo[rev].parents():
if state.get(p.rev()) == repo[p1].rev():
base = p.node()
break
else: # fallback when base not found
base = None
# Raise because this function is called wrong (see issue 4106)
raise AssertionError('no base found to rebase on '
'(rebasenode called wrong)')
if base is not None:
repo.ui.debug(" detach base %d:%s\n" % (repo[base].rev(), repo[base]))
# When collapsing in-place, the parent is the common ancestor, we
# have to allow merging with it.
stats = merge.update(repo, rev, True, True, False, base, collapse,
labels=['dest', 'source'])
if collapse:
copies.duplicatecopies(repo, rev, target)
else:
# If we're not using --collapse, we need to
# duplicate copies between the revision we're
# rebasing and its first parent, but *not*
# duplicate any copies that have already been
# performed in the destination.
p1rev = repo[rev].p1().rev()
copies.duplicatecopies(repo, rev, p1rev, skiprev=target)
return stats
