comparison hgext/rebase.py @ 9815:49efeed49c94

rebase: make sure the newancestor is used during the whole update
(issue1561)

Before this change, newancestor was used only once as a replacement
for ancestor.ancestor, but merge.update calls ancestor.ancestor
several times, so it ends up with the "wrong" ancestor (the real
ancestor, but we want the parent of the rebased changeset for all but
the first rebased changeset).

Added a new test case for this: test-rebase-newancestor.

Also, in one scenario in test-rebase-collapse, there was a spurious
conflict caused by the same issue, so that test case was fixed by
removing the now unneeded conflict resolution and the output was
adapted accordingly.

9814:5070e4d57276

def rebasemerge(repo, rev, first=False):
    'return the correct ancestor'
    oldancestor = ancestor.ancestor

    def newancestor(a, b, pfunc):
        ancestor.ancestor = oldancestor
        if b == rev:
            return repo[rev].parents()[0].rev()
        return ancestor.ancestor(a, b, pfunc)

    if not first:
        ancestor.ancestor = newancestor
    else:
        repo.ui.debug("first revision, do not change ancestor\n")
    stats = merge.update(repo, rev, True, True, False)
    return stats

def rebase(ui, repo, **opts):
    """move changeset (and descendants) to a different branch

    Rebase uses repeated merging to graft changesets from one part of

9815:49efeed49c94

def rebasemerge(repo, rev, first=False):
    'return the correct ancestor'
    oldancestor = ancestor.ancestor

    def newancestor(a, b, pfunc):
        if b == rev:
            return repo[rev].parents()[0].rev()
        return oldancestor(a, b, pfunc)

    if not first:
        ancestor.ancestor = newancestor
    else:
        repo.ui.debug("first revision, do not change ancestor\n")
    try:
        stats = merge.update(repo, rev, True, True, False)
        return stats
    finally:
        ancestor.ancestor = oldancestor

def rebase(ui, repo, **opts):
    """move changeset (and descendants) to a different branch

    Rebase uses repeated merging to graft changesets from one part of