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# The contents of this file are subject to the BitTorrent Open Source License
# Version 1.1 (the License). You may not copy or use this file, in either
# source code or executable form, except in compliance with the License. You
# may obtain a copy of the License at http://www.bittorrent.com/license/.
#
# Software distributed under the License is distributed on an AS IS basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
# Written by Bill Bumgarner and Bram Cohen
from types import *
from cStringIO import StringIO
from BitTorrent.obsoletepythonsupport import *
from BitTorrent.defaultargs import MyBool, MYTRUE
from BitTorrent import BTFailure
from BitTorrent.bencode import bdecode
from BitTorrent.platform import is_frozen_exe
from BitTorrent.RawServer_magic import switch_rawserver
def makeHelp(uiname, defaults):
ret = ''
ret += (_("Usage: %s ") % uiname)
if uiname.startswith('launchmany'):
ret += _("[OPTIONS] [TORRENTDIRECTORY]\n\n")
ret += _("If a non-option argument is present it's taken as the value\n"
"of the torrent_dir option.\n")
elif uiname == 'bittorrent':
ret += _("[OPTIONS] [TORRENTFILES]\n")
elif uiname.startswith('bittorrent'):
ret += _("[OPTIONS] [TORRENTFILE]\n")
elif uiname.startswith('maketorrent'):
ret += _("[OPTION] TRACKER_URL FILE [FILE]\n")
ret += '\n'
ret += _("arguments are -\n") + formatDefinitions(defaults, 80)
return ret
def printHelp(uiname, defaults):
if uiname in ('bittorrent','maketorrent') and is_frozen_exe:
from BitTorrent.GUI import HelpWindow
HelpWindow(None, makeHelp(uiname, defaults))
else:
print makeHelp(uiname, defaults)
def formatDefinitions(options, COLS):
s = StringIO()
indent = " " * 10
width = COLS - 11
if width < 15:
width = COLS - 2
indent = " "
for option in options:
(longname, default, doc) = option
if doc == '':
continue
s.write('--' + longname)
is_boolean = type(default) is MyBool
if is_boolean:
s.write(', --no_' + longname)
else:
s.write(' <arg>')
s.write('\n')
if default is not None:
doc += _(" (defaults to ") + repr(default) + ')'
i = 0
for word in doc.split():
if i == 0:
s.write(indent + word)
i = len(word)
elif i + len(word) >= width:
s.write('\n' + indent + word)
i = len(word)
else:
s.write(' ' + word)
i += len(word) + 1
s.write('\n\n')
return s.getvalue()
def usage(str):
raise BTFailure(str)
def format_key(key):
if len(key) == 1:
return '-%s'%key
else:
return '--%s'%key
def parseargs(argv, options, minargs=None, maxargs=None, presets=None):
config = {}
for option in options:
longname, default, doc = option
config[longname] = default
args = []
pos = 0
if presets is None:
presets = {}
else:
presets = presets.copy()
while pos < len(argv):
if argv[pos][:1] != '-': # not a cmdline option
args.append(argv[pos])
pos += 1
else:
key, value = None, None
if argv[pos].startswith('--'): # --aaa 1
if argv[pos].startswith('--no_'):
key = argv[pos][5:]
boolval = False
else:
key = argv[pos][2:]
boolval = True
if key not in config:
raise BTFailure(_("unknown key ") + format_key(key))
if type(config[key]) is MyBool: # boolean cmd line switch, no value
value = boolval
pos += 1
else: # --argument value
if pos == len(argv) - 1:
usage(_("parameter passed in at end with no value"))
key, value = argv[pos][2:], argv[pos+1]
pos += 2
elif argv[pos][:1] == '-':
key = argv[pos][1:2]
if len(argv[pos]) > 2: # -a1
value = argv[pos][2:]
pos += 1
else: # -a 1
if pos == len(argv) - 1:
usage(_("parameter passed in at end with no value"))
value = argv[pos+1]
pos += 2
else:
raise BTFailure(_("command line parsing failed at ")+argv[pos])
presets[key] = value
parse_options(config, presets)
config.update(presets)
for key, value in config.items():
if value is None:
usage(_("Option %s is required.") % format_key(key))
if minargs is not None and len(args) < minargs:
usage(_("Must supply at least %d arguments.") % minargs)
if maxargs is not None and len(args) > maxargs:
usage(_("Too many arguments - %d maximum.") % maxargs)
if config.has_key('twisted'):
if config['twisted'] == 0:
switch_rawserver('untwisted')
elif config['twisted'] == 1:
switch_rawserver('twisted')
return (config, args)
def parse_options(defaults, newvalues):
for key, value in newvalues.iteritems():
if not defaults.has_key(key):
raise BTFailure(_("unknown key ") + format_key(key))
try:
t = type(defaults[key])
if t is MyBool:
if value in ('True', '1', MYTRUE, True):
value = True
else:
value = False
newvalues[key] = value
elif t in (StringType, NoneType):
newvalues[key] = value
elif t in (IntType, LongType):
if value == 'False':
newvalues[key] == 0
elif value == 'True':
newvalues[key] == 1
else:
newvalues[key] = int(value)
elif t is FloatType:
newvalues[key] = float(value)
else:
raise TypeError, str(t)
except ValueError, e:
raise BTFailure(_("wrong format of %s - %s") % (format_key(key), str(e)))
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