mercurial/revlogutils/deltas.py

51052:e80e2d614c9d

    deltachain = lambda rev: revlog._deltachain(rev)[0]

    # exclude already lazy tested base if any
    parents = [p for p in (p1, p2) if p != nullrev]

    if not revlog._deltabothparents and len(parents) == 2:
        parents.sort()
        # To minimize the chance of having to build a fulltext,
        # pick first whichever parent is closest to us (max rev)
        yield (parents[1],)
        # then the other one (min rev) if the first did not fit

51053:96f521df2508

    deltachain = lambda rev: revlog._deltachain(rev)[0]

    # exclude already lazy tested base if any
    parents = [p for p in (p1, p2) if p != nullrev]

    if not revlog.delta_config.delta_both_parents and len(parents) == 2:
        parents.sort()
        # To minimize the chance of having to build a fulltext,
        # pick first whichever parent is closest to us (max rev)
        yield (parents[1],)
        # then the other one (min rev) if the first did not fit