input-remapper/inputremapper/data.py
2022-01-01 13:52:33 +01:00

89 lines
2.8 KiB
Python

#!/usr/bin/python3
# -*- coding: utf-8 -*-
# input-remapper - GUI for device specific keyboard mappings
# Copyright (C) 2022 sezanzeb <proxima@sezanzeb.de>
#
# This file is part of input-remapper.
#
# input-remapper 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.
#
# input-remapper 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 input-remapper. If not, see <https://www.gnu.org/licenses/>.
"""Get stuff from /usr/share/input-remapper, depending on the prefix."""
import sys
import os
import site
import pkg_resources
from inputremapper.logger import logger
logged = False
def get_data_path(filename=""):
"""Depending on the installation prefix, return the data dir.
Since it is a nightmare to get stuff installed with pip across
distros this is somewhat complicated. Ubuntu uses /usr/local/share
for data_files (setup.py) and manjaro uses /usr/share.
"""
global logged
source = None
try:
source = pkg_resources.require("input-remapper")[0].location
# failed in some ubuntu installations
except pkg_resources.DistributionNotFound:
pass
# depending on where this file is installed to, make sure to use the proper
# prefix path for data
# https://docs.python.org/3/distutils/setupscript.html?highlight=package_data#installing-additional-files # noqa pylint: disable=line-too-long
data = None
# python3.8/dist-packages python3.7/site-packages, /usr/share,
# /usr/local/share, endless options
if source and "-packages" not in source and "python" not in source:
# probably installed with -e, running from the cloned git source
data = os.path.join(source, "data")
if not os.path.exists(data):
if not logged:
logger.debug('-e, but data missing at "%s"', data)
data = None
candidates = [
"/usr/share/input-remapper",
"/usr/local/share/input-remapper",
os.path.join(site.USER_BASE, "share/input-remapper"),
]
if data is None:
# try any of the options
for candidate in candidates:
if os.path.exists(candidate):
data = candidate
break
if data is None:
logger.error("Could not find the application data")
sys.exit(1)
if not logged:
logger.debug('Found data at "%s"', data)
logged = True
return os.path.join(data, filename)