comparison mercurial/merge.py @ 44271:c791ed6a2154

merge: introduce a revert_to() for that use-case

In the same vein as the previous patch.

Differential Revision: https://phab.mercurial-scm.org/D7901

44270:f546d2170b0f

    ancestor=None,
    mergeancestor=False,
    labels=None,
    matcher=None,
    mergeforce=False,
    updatecheck=None,
    wc=None,
):
    """
    Perform a merge between the working directory and the given node

        if not branchmerge:  # just jump to the new rev
            fp1, fp2, xp1, xp2 = fp2, nullid, xp2, b''
        # If we're doing a partial update, we need to skip updating
        # the dirstate.
        always = matcher is None or matcher.always()
        updatedirstate = always and not wc.isinmemory()
        if updatedirstate:
            repo.hook(b'preupdate', throw=True, parent1=xp1, parent2=xp2)
            # note that we're in the middle of an update
            repo.vfs.write(b'updatestate', p2.hex())

    working copy.
    """
    return update(ctx.repo(), ctx.rev(), branchmerge=False, force=True, wc=wc)


def graft(
    repo,
    ctx,
    base=None,
    labels=None,

44271:c791ed6a2154

    ancestor=None,
    mergeancestor=False,
    labels=None,
    matcher=None,
    mergeforce=False,
    updatedirstate=True,
    updatecheck=None,
    wc=None,
):
    """
    Perform a merge between the working directory and the given node

        if not branchmerge:  # just jump to the new rev
            fp1, fp2, xp1, xp2 = fp2, nullid, xp2, b''
        # If we're doing a partial update, we need to skip updating
        # the dirstate.
        always = matcher is None or matcher.always()
        updatedirstate = updatedirstate and always and not wc.isinmemory()
        if updatedirstate:
            repo.hook(b'preupdate', throw=True, parent1=xp1, parent2=xp2)
            # note that we're in the middle of an update
            repo.vfs.write(b'updatestate', p2.hex())

    working copy.
    """
    return update(ctx.repo(), ctx.rev(), branchmerge=False, force=True, wc=wc)


def revert_to(ctx, matcher=None, wc=None):
    """Revert the working copy to the given commit.

    The working copy will keep its current parent(s) but its content will
    be the same as in the given commit.
    """

    return update(
        ctx.repo(),
        ctx.rev(),
        branchmerge=False,
        force=True,
        updatedirstate=False,
        matcher=matcher,
        wc=wc,
    )


def graft(
    repo,
    ctx,
    base=None,
    labels=None,