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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 os
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,
'draw_borders': bool,
'draw_bookmark_borders': bool,
'sort': str,
'sort_reverse': bool,
'sort_case_insensitive': bool,
'sort_directories_first': bool,
'update_title': bool,
'shorten_title': int, # Note: False is an instance of int
'max_filesize_for_preview': (int, type(None)),
'max_history_size': (int, type(None)),
'scroll_offset': int,
'preview_files': bool,
'preview_directories': bool,
'flushinput': bool,
'colorscheme': str,
'hidden_filter': lambda x: isinstance(x, str) or hasattr(x, 'match'),
}
COMPAT_MAP = {
'sort_reverse': 'reverse',
'sort_directories_first': 'directories_first',
}
# -- 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 options as my_options
except ImportError:
pass
else:
for setting in ALLOWED_SETTINGS:
try:
settings[setting] = getattr(my_options, setting)
except AttributeError:
pass
for new, old in COMPAT_MAP.items():
try:
settings[new] = getattr(my_options, old)
print("Warning: the option `{0}'"\
" was renamed to `{1}'\nPlease update"\
" your configuration file soon." \
.format(old, new))
except AttributeError:
pass
assert check_option_types(settings)
# Find the colorscheme. First look for it at ~/.ranger/colorschemes,
# then at RANGERDIR/colorschemes. If the file contains a class
# named Scheme, it is used. Otherwise, an arbitrary other class
# is picked.
scheme_name = settings.colorscheme
def exists(colorscheme):
return os.path.exists(colorscheme + '.py')
def is_scheme(x):
return isclass(x) and issubclass(x, ColorScheme)
# create ~/.ranger/colorschemes/__init__.py if it doesn't exist
if os.path.exists(ranger.relpath_conf('colorschemes')):
initpy = ranger.relpath_conf('colorschemes', '__init__.py')
if not os.path.exists(initpy):
open(initpy, 'a').close()
if exists(ranger.relpath_conf('colorschemes', scheme_name)):
scheme_supermodule = 'colorschemes'
elif exists(ranger.relpath('colorschemes', scheme_name)):
scheme_supermodule = 'ranger.colorschemes'
else:
scheme_supermodule = None # found no matching file.
if scheme_supermodule is None:
print("ERROR: colorscheme not found, fall back to builtin scheme")
if ranger.arg.debug:
raise Exception("Cannot locate colorscheme!")
settings.colorscheme = ColorScheme()
else:
scheme_module = getattr(__import__(scheme_supermodule,
globals(), locals(), [scheme_name], 0), scheme_name)
assert ismodule(scheme_module)
if hasattr(scheme_module, 'Scheme') \
and is_scheme(scheme_module.Scheme):
settings.colorscheme = scheme_module.Scheme()
else:
for name, var in scheme_module.__dict__.items():
if var != ColorScheme and is_scheme(var):
settings.colorscheme = var()
break
else:
raise Exception("The module contains no " \
"valid 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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