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# Copyright (C) 2009, 2010 Roman Zimbelmann <romanz@lavabit.com>
#
# 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 types
from inspect import isclass, ismodule
import ranger
from ranger.ext.openstruct import OpenStruct
from ranger.gui.colorscheme import ColorScheme
ALLOWED_SETTINGS = {
'show_hidden': bool,
'show_cursor': bool,
'autosave_bookmarks': bool,
'collapse_preview': bool,
'sort': str,
'reverse': bool,
'directories_first': bool,
'update_title': bool,
'max_filesize_for_preview': (int, type(None)),
'max_history_size': (int, type(None)),
'scroll_offset': int,
'preview_files': bool,
'flushinput': bool,
'colorscheme': (ColorScheme, types.ModuleType),
'hidden_filter': lambda x: isinstance(x, str) or hasattr(x, 'match'),
}
# -- globalize the settings --
class SettingsAware(object):
settings = OpenStruct()
@staticmethod
def _setup():
settings = OpenStruct()
from ranger.defaults import options
for setting in ALLOWED_SETTINGS:
try:
settings[setting] = getattr(options, setting)
except AttributeError:
raise Exception("The option `{0}' was not defined" \
" in the defaults!".format(setting))
import sys
if not ranger.arg.clean:
# overwrite single default options with custom options
try:
import rangerrc
except ImportError:
pass
else:
for setting in ALLOWED_SETTINGS:
try:
settings[setting] = getattr(rangerrc, setting)
except AttributeError:
pass
assert check_option_types(settings)
# If a module is specified as the colorscheme, replace it with one
# valid colorscheme inside that module.
all_content = settings.colorscheme.__dict__.items()
if isclass(settings.colorscheme) and \
issubclass(settings.colorscheme, ColorScheme):
settings.colorscheme = settings.colorscheme()
elif ismodule(settings.colorscheme):
def is_scheme(x):
return isclass(x) and issubclass(x, ColorScheme)
if hasattr(settings.colorscheme, 'Scheme') \
and is_scheme(settings.colorscheme.Scheme):
settings.colorscheme = settings.colorscheme.Scheme()
else:
for name, var in settings.colorscheme.__dict__.items():
if var != ColorScheme and is_scheme(var):
settings.colorscheme = var()
break
else:
raise Exception("The module contains no " \
"valid colorscheme!")
else:
raise Exception("Cannot locate colorscheme!")
try:
import apps
except ImportError:
from ranger.defaults import apps
settings.apps = apps
try:
import keys
except ImportError:
from ranger.defaults import keys
settings.keys = keys
SettingsAware.settings = settings
def check_option_types(opt):
import inspect
for name, typ in ALLOWED_SETTINGS.items():
optvalue = getattr(opt, name)
if inspect.isfunction(typ):
assert typ(optvalue), \
"The option `" + name + "' has an incorrect type!"
else:
assert isinstance(optvalue, typ), \
"The option `" + name + "' has an incorrect type!"\
" Got " + str(type(optvalue)) + ", expected " + str(typ) + "!"
return True
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