comparison hgext/rebase.py @ 28685:6c4d23fe611c

rebase: refactor of error handling code path for rebaseskipobsolete

This patch extracts the error handling code path to go in a separate function.
In the next patch we will able to reuse this logic and avoid duplicated code.

28684:1ace17e1e160

                rebaseobsrevs = _filterobsoleterevs(repo, rebasesetrevs)
                obsoletenotrebased = _computeobsoletenotrebased(repo,
                                                                rebaseobsrevs,
                                                                dest)
                rebaseobsskipped = set(obsoletenotrebased)

                # Obsolete node with successors not in dest leads to divergence
                divergenceok = ui.configbool('experimental',
                                             'allowdivergence')
                divergencebasecandidates = rebaseobsrevs - rebaseobsskipped

                if divergencebasecandidates and not divergenceok:
                    divhashes = (str(repo[r])
                                 for r in divergencebasecandidates)
                    msg = _("this rebase will cause "
                            "divergences from: %s")
                    h = _("to force the rebase please set "
                          "experimental.allowdivergence=True")
                    raise error.Abort(msg % (",".join(divhashes),), hint=h)

                # - plain prune (no successor) changesets are rebased
                # - split changesets are not rebased if at least one of the
                # changeset resulting from the split is an ancestor of dest
                rebaseset = rebasesetrevs - rebaseobsskipped
                if rebasesetrevs and not rebaseset:
                    msg = _('all requested changesets have equivalents '
                            'or were marked as obsolete')
                    hint = _('to force the rebase, set the config '
                             'experimental.rebaseskipobsolete to False')
                    raise error.Abort(msg, hint=hint)

            result = buildstate(repo, dest, rebaseset, collapsef,
                                obsoletenotrebased)

            if not result:

    if candidates:
        return state[candidates.first()]
    else:
        return None

def defineparents(repo, rev, target, state, targetancestors):
    'Return the new parent relationship of the revision that will be rebased'
    parents = repo[rev].parents()
    p1 = p2 = nullrev

28685:6c4d23fe611c

                rebaseobsrevs = _filterobsoleterevs(repo, rebasesetrevs)
                obsoletenotrebased = _computeobsoletenotrebased(repo,
                                                                rebaseobsrevs,
                                                                dest)
                rebaseobsskipped = set(obsoletenotrebased)
                _checkobsrebase(repo, ui, rebaseobsrevs,
                                              rebasesetrevs,
                                              rebaseobsskipped)

            result = buildstate(repo, dest, rebaseset, collapsef,
                                obsoletenotrebased)

            if not result:

    if candidates:
        return state[candidates.first()]
    else:
        return None

def _checkobsrebase(repo, ui,
                                  rebaseobsrevs,
                                  rebasesetrevs,
                                  rebaseobsskipped):
    """
    Abort if rebase will create divergence or rebase is noop because of markers

    `rebaseobsrevs`: set of obsolete revision in source
    `rebasesetrevs`: set of revisions to be rebased from source
    `rebaseobsskipped`: set of revisions from source skipped because they have
    successors in destination
    """
    # Obsolete node with successors not in dest leads to divergence
    divergenceok = ui.configbool('experimental',
                                 'allowdivergence')
    divergencebasecandidates = rebaseobsrevs - rebaseobsskipped

    if divergencebasecandidates and not divergenceok:
        divhashes = (str(repo[r])
                     for r in divergencebasecandidates)
        msg = _("this rebase will cause "
                "divergences from: %s")
        h = _("to force the rebase please set "
              "experimental.allowdivergence=True")
        raise error.Abort(msg % (",".join(divhashes),), hint=h)

    # - plain prune (no successor) changesets are rebased
    # - split changesets are not rebased if at least one of the
    # changeset resulting from the split is an ancestor of dest
    rebaseset = rebasesetrevs - rebaseobsskipped
    if rebasesetrevs and not rebaseset:
        msg = _('all requested changesets have equivalents '
                'or were marked as obsolete')
        hint = _('to force the rebase, set the config '
                 'experimental.rebaseskipobsolete to False')
        raise error.Abort(msg, hint=hint)

def defineparents(repo, rev, target, state, targetancestors):
    'Return the new parent relationship of the revision that will be rebased'
    parents = repo[rev].parents()
    p1 = p2 = nullrev