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gns3-server/gns3server/utils/get_resource.py
2015-07-03 20:29:49 +02:00

58 lines
1.8 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 tempfile
import pkg_resources
import atexit
import logging
import os
import sys
log = logging.getLogger(__name__)
try:
egg_cache_dir = tempfile.mkdtemp()
pkg_resources.set_extraction_path(egg_cache_dir)
except ValueError:
# If the path is already set the module throw an error
pass
@atexit.register
def clean_egg_cache():
try:
import shutil
log.debug("Clean egg cache %s", egg_cache_dir)
shutil.rmtree(egg_cache_dir)
except Exception:
# We don't care if we can not cleanup
pass
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))
elif not hasattr(sys, "frozen") and pkg_resources.resource_exists("gns3server", resource_name):
resource_path = pkg_resources.resource_filename("gns3server", resource_name)
resource_path = os.path.normpath(resource_path)
return resource_path