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# Copyright (C) 2007-2008 www.stani.be
#
# 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/
__all__ = ['get_context', 'join']
import os
import sys
import desktop
def endswith(x, suffices):
for suffix in suffices:
if x.endswith(suffix):
return True
return False
_CONTEXT = {}
# PLATFORM
if sys.platform.startswith('win'):
_CONTEXT['platform'] = 'windows'
elif sys.platform.startswith('darwin'):
_CONTEXT['platform'] = 'apple'
else:
#assume linux
_CONTEXT['platform'] = 'linux'
UNIX = _CONTEXT['platform'] in ('linux', 'apple')
# SETUP
if hasattr(sys, 'frozen'):
_CONTEXT['distribute'] = 'frozen'
elif not endswith(sys.argv[0], ('.py', 'nosetests')):
_CONTEXT['distribute'] = 'package'
else:
_CONTEXT['distribute'] = 'source'
_CONTEXT['context'] = (_CONTEXT['platform'], _CONTEXT['distribute'])
class ContextError(Exception):
pass
def join(*args):
path = os.path.abspath(os.path.join(*args))
if not os.path.exists(path):
raise ContextError(path)
return path
def join_create(*args):
path = os.path.abspath(os.path.join(*args))
if not os.path.exists(path):
os.mkdir(path)
return path
def _find_parent(path, base):
if base == os.path.basename(path):
return path
if not path:
raise ContextError('Can not find "%s" parent path.' % base)
return _find_parent(os.path.abspath(os.path.join(path, '..')), base)
def _find_source_path(base_source):
# __file__ may only be used to locate the source files
return _find_parent(
os.path.abspath(
os.path.dirname(unicode(__file__, sys.getfilesystemencoding())),
),
base_source,
)
def get_context(app_name, base_source='source', sys_prefix=None):
"""Finds the right paths depending on the context, which consists of the
platform and how it is distributed.
context = (platform, distribute)
platform = 'linux', 'apple' or 'windows'
distribute = 'frozen', 'package' or 'source'
"""
if sys_prefix is None:
sys_prefix = sys.prefix
context = _CONTEXT.copy()
# initialize APP_NAME
context['app_name'] = app_name
# initialize APP_ROOT and DATA_PATH
if context['distribute'] == 'source':
# source: eg. trunk/source
context['app_source_path'] = _find_source_path(base_source)
# data: eg. trunk/data
context['app_data_path'] = join(
context['app_source_path'], '..', 'data')
# doc: eg. trunk/doc
context['app_doc_path'] = join(
context['app_source_path'], '..', 'doc')
# locale: eg. trunk/locale
context['app_locale_path'] = join(
context['app_source_path'], '..', 'locale')
elif context['context'] == ('linux', 'package'):
# source: eg. /usr/share/phatch/source
context['app_source_path'] = _find_source_path(base_source)
# data: eg. /usr/share/phatch/data
context['app_data_path'] = join(sys_prefix, 'share', app_name, 'data')
# doc: eg. /usr/share/doc/phatch/
context['app_doc_path'] = join(sys_prefix, 'share', 'doc', app_name)
# locale: eg. /usr/share/locale/
context['app_locale_path'] = join(sys_prefix, 'share', 'locale')
#elif context['context'] == ('apple', 'frozen'):
# # TODO: implement this!
# APP_ROOT = os.path.dirname(os.path.dirname(unicode(sys.executable,
# sys.getfilesystemencoding())))
# # eg. Phatch.app/Contents/Resources/
# context['app_data_path'] = join(APP_ROOT, 'Contents', 'Resources')
#elif context['context'] == ('windows', 'frozen'):
# # The same as the exe dir
# APP_ROOT = os.path.dirname(unicode(sys.executable,
# sys.getfilesystemencoding()))
# context['app_data_path'] = os.path.join(APP_ROOT, 'data')
else:
raise ContextError(
'Sorry your context%(context)s is not yet supported.' % context)
# other data pats
context['app_images_path'] = join(context['app_data_path'], 'images')
# user paths
context['desktop_path'] = desktop.DESKTOP_PATH
context['user_path'] = desktop.USER_PATH
if context['platform'] == 'linux':
context['user_cache_path'] = join_create(desktop.USER_CACHE_PATH,
app_name)
context['user_config_path'] = join_create(desktop.USER_CONFIG_PATH,
app_name)
context['user_data_path'] = join_create(desktop.USER_DATA_PATH,
app_name)
else:
dot = '.' + app_name
context['user_cache_path'] = join_create(desktop.USER_PATH, dot,
'cache')
context['user_config_path'] = join_create(desktop.USER_PATH, dot,
'config')
context['user_data_path'] = join_create(desktop.USER_PATH, dot,
'data')
return context
if __name__ == '__main__':
import pprint
pprint.pprint(get_context('app', base_source='phatch'))
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