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#!/usr/bin/python
# coding=utf-8
#
# 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 sys
import ranger
from optparse import OptionParser, SUPPRESS_HELP
from ranger.ext.openstruct import OpenStruct
from ranger import __version__, USAGE, DEFAULT_CONFDIR
import ranger.api.commands
from signal import signal, SIGINT
from locale import getdefaultlocale, setlocale, LC_ALL
from ranger.ext import curses_interrupt_handler
from ranger.core.runner import Runner
from ranger.core.fm import FM
from ranger.core.environment import Environment
from ranger.shared import (EnvironmentAware, FileManagerAware,
SettingsAware)
from ranger.gui.defaultui import DefaultUI as UI
from ranger.fsobject import File
def parse_arguments():
"""Parse the program arguments"""
parser = OptionParser(usage=USAGE, version='ranger ' + __version__)
parser.add_option('-d', '--debug', action='store_true',
help="activate debug mode")
parser.add_option('-c', '--clean', action='store_true',
help="don't touch/require any config files. ")
parser.add_option('--fail-if-run', action='store_true',
help="experimental: return the exit code 1 if ranger is" \
"used to run a file (with `ranger filename`)")
parser.add_option('-r', '--confdir', type='string',
metavar='dir', default=DEFAULT_CONFDIR,
help="the configuration directory. (%default)")
parser.add_option('-m', '--mode', type='int', default=0, metavar='n',
help="if a filename is supplied, run it with this mode")
parser.add_option('-f', '--flags', type='string', default='',
metavar='string',
help="if a filename is supplied, run it with these flags.")
options, positional = parser.parse_args()
arg = OpenStruct(options.__dict__, targets=positional)
arg.confdir = os.path.expanduser(arg.confdir)
return arg
def allow_access_to_confdir(confdir, allow):
if allow:
try:
os.makedirs(confdir)
except OSError as err:
if err.errno != 17: # 17 means it already exists
print("This configuration directory could not be created:")
print(confdir)
print("To run ranger without the need for configuration")
print("files, use the --clean option.")
raise SystemExit()
if not confdir in sys.path:
sys.path[0:0] = [confdir]
else:
if sys.path[0] == confdir:
del sys.path[0]
def load_settings(fm, clean):
if not clean:
allow_access_to_confdir(ranger.arg.confdir, True)
# Load commands
comcont = ranger.api.commands.CommandContainer()
ranger.api.commands.alias = comcont.alias
try:
import commands
comcont.load_commands_from_module(commands)
except ImportError:
pass
from ranger.defaults import commands
comcont.load_commands_from_module(commands)
commands = comcont
# Load apps
try:
import apps
except ImportError:
from ranger.defaults import apps
# Load keys
from ranger import shared, api
from ranger.api import keys
keymanager = shared.EnvironmentAware.env.keymanager
keys.keymanager = keymanager
from ranger.defaults import keys
try:
import keys
except ImportError:
pass
# COMPAT WARNING
if hasattr(keys, 'initialize_commands'):
print("Warning: the syntax for ~/.ranger/keys.py has changed.")
print("Your custom keys are not loaded."\
" Please update your configuration.")
allow_access_to_confdir(ranger.arg.confdir, False)
else:
comcont = ranger.api.commands.CommandContainer()
ranger.api.commands.alias = comcont.alias
from ranger.defaults import commands, keys, apps
comcont.load_commands_from_module(commands)
commands = comcont
fm.commands = commands
fm.keys = keys
fm.apps = apps.CustomApplications()
def load_apps(fm, clean):
if not clean:
allow_access_to_confdir(ranger.arg.confdir, True)
try:
import apps
except ImportError:
from ranger.defaults import apps
allow_access_to_confdir(ranger.arg.confdir, False)
else:
from ranger.defaults import apps
fm.apps = apps.CustomApplications()
def main():
"""initialize objects and run the filemanager"""
try:
import curses
except ImportError as errormessage:
print(errormessage)
print('ranger requires the python curses module. Aborting.')
sys.exit(1)
# Ensure that a utf8 locale is set.
if getdefaultlocale()[1] not in ('utf8', 'UTF-8'):
for locale in ('en_US.utf8', 'en_US.UTF-8'):
try: setlocale(LC_ALL, locale)
except: pass
else: break
else: setlocale(LC_ALL, '')
else: setlocale(LC_ALL, '')
arg = parse_arguments()
ranger.arg = arg
if not ranger.arg.debug:
curses_interrupt_handler.install_interrupt_handler()
SettingsAware._setup()
if arg.targets:
target = arg.targets[0]
if not os.access(target, os.F_OK):
print("File or directory doesn't exist: %s" % target)
sys.exit(1)
elif os.path.isfile(target):
def print_function(string):
print(string)
runner = Runner(logfunc=print_function)
load_apps(runner, ranger.arg.clean)
runner(files=[File(target)], mode=arg.mode, flags=arg.flags)
sys.exit(1 if arg.fail_if_run else 0)
else:
path = target
else:
path = '.'
try:
# Initialize objects
EnvironmentAware._assign(Environment(path))
fm = FM()
load_settings(fm, ranger.arg.clean)
FileManagerAware._assign(fm)
fm.ui = UI()
# Run the file manager
fm.initialize()
fm.ui.initialize()
fm.loop()
finally:
# Finish, clean up
try:
fm.ui.destroy()
except (AttributeError, NameError):
pass
if __name__ == '__main__':
top_dir = os.path.dirname(sys.path[0])
sys.path.insert(0, top_dir)
main()
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