class SavePristinePkg(base):

    required_csets = ('raw_new_cset',)
    _hooks = ('sanity_check',)
    _priority = 1000
    _engine_types = INSTALLING_MODES

    pkgcore_config_type = ConfigHint({'target_repo':'ref:repo'},
        typename='trigger', required=['target_repo'])

    def __init__(self, target_repo):
        self.target_repo = target_repo

    def trigger(self, engine, cset):
        pkg = engine.new
        old_pkg = self.target_repo.match(pkg.versioned_atom)
        if old_pkg:
            txt = 'replacing'
            op = self.target_repo.replace(*(old_pkg + [pkg]))
        else:
            txt = 'installing'
            op = self.target_repo.install(pkg)
        engine.observer.info("%s %s to %s" %
            (txt, pkg, self.target_repo))
        op.finish()