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gns3-server/gns3server/utils/get_resource.py

50 lines
1.5 KiB
Python

# -*- coding: utf-8 -*-
#
# Copyright (C) 2015 GNS3 Technologies Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import atexit
import logging
import os
import sys
try:
import importlib_resources
except ImportError:
from importlib import resources as importlib_resources
from contextlib import ExitStack
resource_manager = ExitStack()
atexit.register(resource_manager.close)
log = logging.getLogger(__name__)
def get_resource(resource_name):
"""
Return a resource in current directory or in frozen package
"""
resource_path = None
if hasattr(sys, "frozen"):
resource_path = os.path.normpath(os.path.join(os.path.dirname(sys.executable), resource_name))
else:
ref = importlib_resources.files("gns3server") / resource_name
path = resource_manager.enter_context(importlib_resources.as_file(ref))
if os.path.exists(path):
resource_path = os.path.normpath(path)
return resource_path