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'''Option parsing library for utilities'''
__revision__ = '$Revision$'
import getopt, os, socket, sys, ConfigParser, Bcfg2.Client.Tools
def bool_cook(x):
if x:
return True
else:
return False
class OptionFailure(Exception):
pass
DEFAULT_CONFIG_LOCATION = '/etc/bcfg2.conf' #/etc/bcfg2.conf
DEFAULT_INSTALL_PREFIX = '/usr' #/usr
class Option(object):
cfpath = DEFAULT_CONFIG_LOCATION
__cfp = False
def getCFP(self):
if not self.__cfp:
self.__cfp = ConfigParser.ConfigParser()
self.__cfp.readfp(open(self.cfpath))
return self.__cfp
cfp = property(getCFP)
def get_cooked_value(self, value):
if self.boolean:
return True
if self.cook:
return self.cook(value)
else:
return value
def __init__(self, desc, default, cmd=False, odesc=False,
env=False, cf=False, cook=False, long_arg=False):
self.desc = desc
self.default = default
self.cmd = cmd
self.long = long_arg
if not self.long:
if cmd and (cmd[0] != '-' or len(cmd) != 2):
raise OptionFailure("Poorly formed command %s" % cmd)
else:
if cmd and (not cmd.startswith('--')):
raise OptionFailure("Poorly formed command %s" % cmd)
self.odesc = odesc
self.env = env
self.cf = cf
self.boolean = False
if not odesc and not cook:
self.boolean = True
self.cook = cook
def buildHelpMessage(self):
msg = ''
if self.cmd:
if not self.long:
msg = self.cmd.ljust(3)
else:
msg = self.cmd
if self.odesc:
if self.long:
msg = "%-27s" % ("%s=%s" % (self.cmd, self.odesc))
else:
msg += '%-24s' % (self.odesc)
else:
msg += '%-24s' % ('')
msg += "%s\n" % self.desc
return msg
def buildGetopt(self):
gstr = ''
if self.long:
return gstr
if self.cmd:
gstr = self.cmd[1]
if self.odesc:
gstr += ':'
return gstr
def buildLongGetopt(self):
if self.odesc:
return self.cmd[2:]+'='
else:
return self.cmd[2:]
def parse(self, opts, rawopts):
if self.cmd and opts:
# processing getopted data
optinfo = [opt[1] for opt in opts if opt[0] == self.cmd]
if optinfo:
if optinfo[0]:
self.value = self.get_cooked_value(optinfo[0])
else:
self.value = True
return
if self.cmd and self.cmd in rawopts:
data = rawopts[rawopts.index(self.cmd) + 1]
self.value = self.get_cooked_value(data)
return
# no command line option found
if self.env and self.env in os.environ:
self.value = self.get_cooked_value(os.environ[self.env])
return
if self.cf:
try:
self.value = self.get_cooked_value(self.cfp.get(*self.cf))
return
except:
pass
# default value not cooked
self.value = self.default
class OptionSet(dict):
def __init__(self, *args):
dict.__init__(self, *args)
self.hm = self.buildHelpMessage()
def buildGetopt(self):
return ''.join([opt.buildGetopt() for opt in self.values()])
def buildLongGetopt(self):
return [opt.buildLongGetopt() for opt in self.values() if opt.long]
def buildHelpMessage(self):
if hasattr(self, 'hm'):
return self.hm
return ''.join([opt.buildHelpMessage() for opt in self.values()])
def helpExit(self, msg='', code=1):
if msg:
print msg
print "Usage:"
print self.buildHelpMessage()
raise SystemExit(code)
def parse(self, argv, do_getopt=True):
'''Parse options'''
ret = {}
if do_getopt:
try:
opts, args = getopt.getopt(argv, self.buildGetopt(),
self.buildLongGetopt())
except getopt.GetoptError, err:
self.helpExit(err)
if '-h' in argv:
self.helpExit('', 0)
self['args'] = args
for key in self.keys():
if key == 'args':
continue
option = self[key]
if do_getopt:
option.parse(opts, [])
else:
option.parse([], argv)
if hasattr(option, 'value'):
val = option.value
self[key] = val
list_split = lambda x:x.replace(' ','').split(',')
flist_split = lambda x:list_split(x.replace(':', '').lower())
def colon_split(c_string):
if c_string:
return c_string.split(':')
return []
CFILE = Option('Specify configuration file', DEFAULT_CONFIG_LOCATION, cmd='-C',
odesc='<conffile>')
HELP = Option('Print this usage message', False, cmd='-h')
DEBUG = Option("Enable debugging output", False, cmd='-d')
VERBOSE = Option("Enable verbose output", False, cmd='-v')
DAEMON = Option("Daemonize process, storing pid", False,
cmd='-D', odesc="<pidfile>")
SERVER_REPOSITORY = Option('Server repository path', '/var/lib/bcfg2',
cf=('server', 'repository'), cmd='-Q',
odesc='<repository path>' )
SERVER_SVN = Option('Server svn support', False, cf=('server', 'svn'))
SERVER_GENERATORS = Option('Server generator list', cf=('server', 'generators'),
default=['SSHbase', 'Cfg', 'Pkgmgr', 'Rules'],
cook=list_split)
SERVER_STRUCTURES = Option('Server structure list', cf=('server', 'structures'),
default=['Bundler', 'Base'], cook=list_split)
SERVER_LOCATION = Option('Server Location', cf=('components', 'bcfg2'),
default='https://localhost:6789', cmd='-S',
odesc='https://server:port')
SERVER_STATIC = Option('Server runs on static port', cf=('components', 'bcfg2'),
default=False, cook=bool_cook)
SERVER_KEY = Option('Path to SSL key', cf=('communication', 'key'),
default=False, cmd='-K', odesc='<ssl key file>')
SERVER_PASSWORD = Option('Communication Password', cmd='-x', odesc='<password>',
cf=('communication', 'password'), default=False)
INSTALL_PREFIX = Option('Installation location', cf=('server', 'prefix'),
default=DEFAULT_INSTALL_PREFIX, odesc='</path>')
SERVER_PROTOCOL = Option('Server Protocol', cf=('communication', 'procotol'),
default='xmlrpc/ssl')
SENDMAIL_PATH = Option('Path to sendmail', cf=('reports', 'sendmailpath'),
default='/usr/lib/sendmail')
CLIENT_PROFILE = Option('assert the given profile for the host',
default=False, cmd='-p', odesc="<profile>")
CLIENT_RETRIES = Option('the number of times to retry network communication',
default='3', cmd='-R', cf=('communication', 'retries'),
odesc="<retry count>")
CLIENT_DRYRUN = Option('do not actually change the system',
default=False, cmd='-n', )
CLIENT_EXTRA_DISPLAY = Option('enable extra entry output',
default=False, cmd='-e', )
CLIENT_PARANOID = Option('make automatic backups of config files',
default=False, cmd='-P', )
CLIENT_AGENT = Option('run in agent (continuous) mode, wait for reconfigure command from server', default=False, cmd='-A', )
CLIENT_DRIVERS = Option('Specify tool driver set', cmd='-D',
cf=('client', 'drivers'),
odesc="<driver1,driver2>", cook=list_split,
default=Bcfg2.Client.Tools.default)
CLIENT_CACHE = Option('store the configuration in a file',
default=False, cmd='-c', odesc="<cache path>")
CLIENT_REMOVE = Option('force removal of additional configuration items',
default=False, cmd='-r', odesc="<entry type|all>")
CLIENT_BUNDLE = Option('only configure the given bundle', default=[],
cmd='-b', odesc='<bundle>', cook=colon_split)
CLIENT_KEVLAR = Option('run in kevlar (bulletproof) mode', default=False,
cmd='-k', )
CLIENT_BUILD = Option('run in build mode', default=False, cmd='-B', )
CLIENT_FILE = Option('configure from a file rather than querying the server',
default=False, cmd='-f', odesc='<specification path>')
SERVER_FINGERPRINT = Option('Server Fingerprint', default=[], cmd='-F',
cf=('communication', 'fingerprint'),
odesc='<f1,f2>', cook=flist_split)
CLIENT_QUICK = Option('disable some checksum verification', default=False,
cmd='-q', )
CLIENT_BACKGROUND = Option('Daemonize the agent', default=False, cmd='-i', )
CLIENT_PORT = Option('the port on which to bind for agent mode', default='6789',
cmd='-g', cf=('communication', 'agent-port'),
odesc='<agent port>')
CLIENT_USER = Option('the user to provide for authentication', default='root',
cmd='-u', cf=('communication', 'user'), odesc='<user>')
INTERACTIVE = Option('prompt the user for each change', default=False,
cmd='-I', )
AGENT_PORT = Option('Agent port', default=6789, cmd='-p', odesc='<port>',
cf=('communication', 'agent-port'))
AGENT_HOST = Option('Remote host', default=False, cmd='-H', odesc='<hostname>')
ENCODING = Option('Encoding of cfg files', default=sys.getdefaultencoding(), cmd='-E', odesc='<encoding>',
cf=('components', 'encoding'))
class OptionParser(OptionSet):
'''OptionParser bootstraps option parsing, getting the value of the config file'''
def __init__(self, args):
self.Bootstrap = OptionSet([('configfile', CFILE)])
self.Bootstrap.parse(sys.argv[1:], do_getopt=False)
if self.Bootstrap['configfile'] != Option.cfpath:
Option.cfpath = self.Bootstrap['configfile']
Option.__cfp = False
OptionSet.__init__(self, args)
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