comparison mercurial/revlog.py @ 33391:943b8c37f49d

revlog: micro-optimize the computation of hashes

Differential Revision: https://phab.mercurial-scm.org/D31

33390:32331f54930c

        # deep copy of a hash is faster than creating one
        s = _nullhash.copy()
        s.update(p1)
    else:
        # none of the parent nodes are nullid
        l = [p1, p2]
        l.sort()
        s = hashlib.sha1(l[0])
        s.update(l[1])
    s.update(text)
    return s.digest()

# index v0:
#  4 bytes: offset

33391:943b8c37f49d

        # deep copy of a hash is faster than creating one
        s = _nullhash.copy()
        s.update(p1)
    else:
        # none of the parent nodes are nullid
        if p1 < p2:
            a = p1
            b = p2
        else:
            a = p2
            b = p1
        s = hashlib.sha1(a)
        s.update(b)
    s.update(text)
    return s.digest()

# index v0:
#  4 bytes: offset