comparison mercurial/merge.py @ 42970:1ad3ebb39c61

merge: replace magic strings with NAMED_CONSTANTS (API)

.. api::

    `mercurial.hg.update*` and `mercurial.merge.update` now expect a value
    from a set of NAMED_CONSTANTS (`merge.UPDATECHECK_*` constants)
    rather than a collection of magic strings. As of now, the values
    are the same, but code should be prepared for these values to
    change in the future.

Differential Revision: https://phab.mercurial-scm.org/D6877

42969:76608f9f27f6

            repo.dirstate.add(f)
            repo.dirstate.copy(f0, f)
        else:
            repo.dirstate.normal(f)

def update(repo, node, branchmerge, force, 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 and not force:
        # TODO: remove the default once all callers that pass branchmerge=False
        # and force=False pass a value for updatecheck. We may want to allow
        # updatecheck='abort' to better suppport some of these callers.
        if updatecheck is None:
            updatecheck = 'linear'
        assert updatecheck in ('none', 'linear', 'noconflict')
    # If we're doing a partial update, we need to skip updating
    # the dirstate, so make a note of any partial-ness to the
    # update here.
    if matcher is None or matcher.always():
        partial = False

                # call the hooks and exit early
                repo.hook('preupdate', throw=True, parent1=xp2, parent2='')
                repo.hook('update', parent1=xp2, parent2='', error=0)
                return updateresult(0, 0, 0, 0)

            if (updatecheck == 'linear' and
                    pas not in ([p1], [p2])):  # nonlinear
                dirty = wc.dirty(missing=True)
                if dirty:
                    # Branching is a bit strange to ensure we do the minimal
                    # amount of call to obsutil.foreground.

        ### calculate phase
        actionbyfile, diverge, renamedelete = calculateupdates(
            repo, wc, p2, pas, branchmerge, force, mergeancestor,
            followcopies, matcher=matcher, mergeforce=mergeforce)

        if updatecheck == 'noconflict':
            for f, (m, args, msg) in actionbyfile.iteritems():
                if m not in (ACTION_GET, ACTION_KEEP, ACTION_EXEC,
                             ACTION_REMOVE, ACTION_PATH_CONFLICT_RESOLVE):
                    msg = _("conflicting changes")
                    hint = _("commit or update --clean to discard changes")

42970:1ad3ebb39c61

            repo.dirstate.add(f)
            repo.dirstate.copy(f0, f)
        else:
            repo.dirstate.normal(f)

UPDATECHECK_ABORT = 'abort'  # handled at higher layers
UPDATECHECK_NONE = 'none'
UPDATECHECK_LINEAR = 'linear'
UPDATECHECK_NO_CONFLICT = 'noconflict'

def update(repo, node, branchmerge, force, 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 and not force:
        # TODO: remove the default once all callers that pass branchmerge=False
        # and force=False pass a value for updatecheck. We may want to allow
        # updatecheck='abort' to better suppport some of these callers.
        if updatecheck is None:
            updatecheck = UPDATECHECK_LINEAR
        assert updatecheck in (UPDATECHECK_NONE,
                               UPDATECHECK_LINEAR,
                               UPDATECHECK_NO_CONFLICT,
        )
    # If we're doing a partial update, we need to skip updating
    # the dirstate, so make a note of any partial-ness to the
    # update here.
    if matcher is None or matcher.always():
        partial = False

                # call the hooks and exit early
                repo.hook('preupdate', throw=True, parent1=xp2, parent2='')
                repo.hook('update', parent1=xp2, parent2='', error=0)
                return updateresult(0, 0, 0, 0)

            if (updatecheck == UPDATECHECK_LINEAR and
                    pas not in ([p1], [p2])):  # nonlinear
                dirty = wc.dirty(missing=True)
                if dirty:
                    # Branching is a bit strange to ensure we do the minimal
                    # amount of call to obsutil.foreground.

        ### calculate phase
        actionbyfile, diverge, renamedelete = calculateupdates(
            repo, wc, p2, pas, branchmerge, force, mergeancestor,
            followcopies, matcher=matcher, mergeforce=mergeforce)

        if updatecheck == UPDATECHECK_NO_CONFLICT:
            for f, (m, args, msg) in actionbyfile.iteritems():
                if m not in (ACTION_GET, ACTION_KEEP, ACTION_EXEC,
                             ACTION_REMOVE, ACTION_PATH_CONFLICT_RESOLVE):
                    msg = _("conflicting changes")
                    hint = _("commit or update --clean to discard changes")