fa0eb6cebe
Uses GRAMPS_RESOURCES to override the root location of the Gramps data files (which would normally be $(prefix)/share). In setup.py install, writes $(prefix)/share to gen/utils/resource-path, installs that file, then deletes it again from the source tree. The presence or absence determines whether Gramps is running from the source directory or from an installation. Const.py is now a static file; const.py.in is no longer used. Note that because importing const into setup tried to initialize things that we don't want initialized, VERSION is removed, and imported from gramps.version -- a file which will be added in the next change. Consequently, this commit will not run. svn: r21613
98 lines
3.6 KiB
Python
98 lines
3.6 KiB
Python
#
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# Gramps - a GTK+/GNOME based genealogy program
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#
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# Copyright (C) 2013 John Ralls <jralls@ceridwen.us>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# $Id$
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import sys
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import io
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import os
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import logging
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LOG = logging.getLogger("ResourcePath")
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_hdlr = logging.StreamHandler()
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_hdlr.setFormatter(logging.Formatter(fmt="%(name)s.%(levelname)s: %(message)s"))
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LOG.addHandler(_hdlr)
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class ResourcePath(object):
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"""
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ResourcePath is a singleton, meaning that only one of them is ever
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created. At startup it finds the paths to Gramps's resource files and
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caches them for future use.
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It should be called only by const.py; other code should retrieve the
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paths from there.
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"""
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instance = None
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def __new__(cls):
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if not cls.instance:
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cls.instance = super(ResourcePath, cls).__new__(cls)
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cls.instance.initialized = False
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return cls.instance
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def __init__(self):
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if self.initialized:
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return
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resource_file = os.path.join(os.path.abspath(os.path.dirname(__file__)),
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'resource-path')
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installed = os.path.exists(resource_file)
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if installed:
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test_path = os.path.join("gramps", "authors.xml")
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else:
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test_path = os.path.join("data", "authors.xml")
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resource_path = None
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if ('GRAMPS_RESOURCES' in os.environ and
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os.path.exists(os.path.join(os.environ['GRAMPS_RESOURCES'],
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test_path))):
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resource_path = os.environ['GRAMPS_RESOURCES']
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elif installed:
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try:
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with io.open(resource_file, encoding='utf-8',
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errors='strict') as fp:
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resource_path = fp.readline()
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except UnicodeError as err:
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LOG.exception("Encoding error while parsing resource path", err)
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sys.exit(1)
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except IOError as err:
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LOG.exception("Failed to open resource file", err)
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sys.exit(1)
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if not os.path.exists(os.path.join(resource_path, test_path)):
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LOG.error("Resource Path %s is invalid", resource_path)
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sys.exit(1)
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else:
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LOG.error("Unable to determine resource path")
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sys.exit(1)
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if installed:
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self.locale_dir = os.path.join(resource_path, 'locale')
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self.data_dir = os.path.join(resource_path, 'gramps')
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self.image_dir = os.path.join(resource_path, 'gramps', 'images')
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self.doc_dir = os.path.join(resource_path, 'doc', 'gramps')
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else:
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self.locale_dir = os.path.join(resource_path, 'build', 'mo')
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self.image_dir = os.path.join(resource_path, 'images')
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self.data_dir = os.path.join(resource_path, 'data')
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self.doc_dir = os.path.join(resource_path, 'build', 'data')
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self.initialized = True
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