comparison mercurial/merge.py @ 13561:0ab0ceefddf2

merge: remove last traces of fastforward merging

bbc97d419b16 introduced fast-forward branch merging.
66ed92ed115a partly removed it again.

The fastforward variable would always be false if branchmerge was false, so the
fastforward variable makes no difference and we can remove it completely.

13560:a2734c8322ac

        overwrite = force and not branchmerge
        pl = wc.parents()
        p1, p2 = pl[0], repo[node]
        pa = p1.ancestor(p2)
        fp1, fp2, xp1, xp2 = p1.node(), p2.node(), str(p1), str(p2)
        fastforward = False

        ### check phase
        if not overwrite and len(pl) > 1:
            raise util.Abort(_("outstanding uncommitted merges"))
        if branchmerge:
            if pa == p2:
                raise util.Abort(_("merging with a working directory ancestor"
                                   " has no effect"))
            elif pa == p1:
                if p1.branch() != p2.branch():
                    fastforward = True
                else:
                    raise util.Abort(_("nothing to merge (use 'hg update'"
                                       " or check 'hg heads')"))
            if not force and (wc.files() or wc.deleted()):
                raise util.Abort(_("outstanding uncommitted changes "
                                   "(use 'hg status' to list changes)"))

        stats = applyupdates(repo, action, wc, p2, pa, overwrite)

        if not partial:
            repo.dirstate.setparents(fp1, fp2)
            recordupdates(repo, action, branchmerge)
            if not branchmerge and not fastforward:
                repo.dirstate.setbranch(p2.branch())
    finally:
        wlock.release()

    if not partial:

13561:0ab0ceefddf2

        overwrite = force and not branchmerge
        pl = wc.parents()
        p1, p2 = pl[0], repo[node]
        pa = p1.ancestor(p2)
        fp1, fp2, xp1, xp2 = p1.node(), p2.node(), str(p1), str(p2)

        ### check phase
        if not overwrite and len(pl) > 1:
            raise util.Abort(_("outstanding uncommitted merges"))
        if branchmerge:
            if pa == p2:
                raise util.Abort(_("merging with a working directory ancestor"
                                   " has no effect"))
            elif pa == p1:
                if p1.branch() == p2.branch():
                    raise util.Abort(_("nothing to merge (use 'hg update'"
                                       " or check 'hg heads')"))
            if not force and (wc.files() or wc.deleted()):
                raise util.Abort(_("outstanding uncommitted changes "
                                   "(use 'hg status' to list changes)"))

        stats = applyupdates(repo, action, wc, p2, pa, overwrite)

        if not partial:
            repo.dirstate.setparents(fp1, fp2)
            recordupdates(repo, action, branchmerge)
            if not branchmerge:
                repo.dirstate.setbranch(p2.branch())
    finally:
        wlock.release()

    if not partial: