comparison mercurial/merge.py @ 22902:ce0592328d68

merge: add merge.graft helper

This will help unify all the open-coded graft/rebase operations.

22901:722117c8e023

        wlock.release()

    if not partial:
        repo.hook('update', parent1=xp1, parent2=xp2, error=stats[3])
    return stats

22902:ce0592328d68

        wlock.release()

    if not partial:
        repo.hook('update', parent1=xp1, parent2=xp2, error=stats[3])
    return stats

def graft(repo, ctx, pctx, labels):
    """Do a graft-like merge.

    This is a merge where the merge ancestor is chosen such that one
    or more changesets are grafted onto the current changeset. In
    addition to the merge, this fixes up the dirstate to include only
    a single parent and tries to duplicate any renames/copies
    appropriately.

    ctx - changeset to rebase
    pctx - merge base, usually ctx.p1()
    labels - merge labels eg ['local', 'graft']

    """

    stats = update(repo, ctx.node(), True, True, False, pctx.node(),
                   labels=labels)
    # drop the second merge parent
    repo.dirstate.beginparentchange()
    repo.setparents(repo['.'].node(), nullid)
    repo.dirstate.write()
    # fix up dirstate for copies and renames
    copies.duplicatecopies(repo, ctx.rev(), pctx.rev())
    repo.dirstate.endparentchange()
    return stats