src/buildstream/sandbox/_config.py

#
#  Copyright (C) 2018 Codethink Limited
#
#  This program is free software; you can redistribute it and/or
#  modify it under the terms of the GNU Lesser General Public
#  License as published by the Free Software Foundation; either
#  version 2 of the License, or (at your option) any later version.
#
#  This library is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
#  Lesser General Public License for more details.
#
#  You should have received a copy of the GNU Lesser General Public
#  License along with this library. If not, see <http://www.gnu.org/licenses/>.
#
#  Authors:
#        Jim MacArthur <jim.macarthur@codethink.co.uk>


# SandboxConfig
#
# A container for sandbox configuration data. We want the internals
# of this to be opaque, hence putting it in its own private file.
class SandboxConfig:
    def __init__(self, build_uid, build_gid, build_os=None, build_arch=None):
        self.build_uid = build_uid
        self.build_gid = build_gid
        self.build_os = build_os
        self.build_arch = build_arch

    # get_unique_key():
    #
    # This returns the SandboxConfig's contribution
    # to an element's cache key.
    #
    # Returns:
    #    (dict): A dictionary to add to an element's cache key
    #
    def get_unique_key(self):

        unique_key = {"os": self.build_os, "arch": self.build_arch}

        if self.build_uid is not None:
            unique_key["build-uid"] = self.build_uid

        if self.build_gid is not None:
            unique_key["build-gid"] = self.build_gid

        return unique_key