# Copyright 2010-2013 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

from _emerge.AbstractEbuildProcess import AbstractEbuildProcess


class EbuildSpawnProcess(AbstractEbuildProcess):
    """
    Used by doebuild.spawn() to manage the spawned process.
    """

    _spawn_kwarg_names = AbstractEbuildProcess._spawn_kwarg_names + ("fakeroot_state",)

    __slots__ = ("fakeroot_state", "spawn_func")

    def _spawn(self, args, **kwargs):

        env = self.settings.environ()

        if self._dummy_pipe_fd is not None:
            env["PORTAGE_PIPE_FD"] = str(self._dummy_pipe_fd)

        return self.spawn_func(args, env=env, **kwargs)