def __init__(self, config):
self.config = config
# CLI user interface
self.ui = UI(config)
# CLI commands
self.commands = {}
# CLI context
self.context = Context()
# Readline matches
self.matches = []
# Nagios objects
self.objects = Objects(self, config)
# Nagios command pipe
self.command = nagios.Command(config)
self.setup_prompt()
if readline:
self.setup_readline()
self.setup_commands()
class CLI(object):
def __init__(self, config):
self.config = config
# CLI user interface
self.ui = UI(config)
# CLI commands
self.commands = {}
# CLI context
self.context = Context()
# Readline matches
self.matches = []
# Nagios objects
self.objects = Objects(self, config)
# Nagios command pipe
self.command = nagios.Command(config)
self.setup_prompt()
if readline:
self.setup_readline()
self.setup_commands()
# Setup
def setup_prompt(self):
prompt = self.config.get("ui.prompt_separator", ":").join(map(str, self.context.stack))
self.prompt = (
self.ui.color(
"prompt",
self.config.get("ui.prompt")
% (
self.ui.color(
"prompt.object", self.config.get("ui.prompt_separator", ":").join(map(str, self.context.stack))
)
),
)
+ " "
)
def setup_readline(self):
history = self.config.get("cli.history")
if history:
# Load history
history = os.path.expanduser(history)
try:
readline.read_history_file(history)
except IOError:
pass
# Save history at exit
import atexit
atexit.register(readline.write_history_file, history)
readline.set_completer(self.complete)
readline.parse_and_bind("tab: complete")
# We need hyphen in hostnames
readline.set_completer_delims(readline.get_completer_delims().replace("-", ""))
def setup_commands(self):
for item in command.DEFAULT:
self.command_add(item)
# I/O
def flush(self):
sys.stdout.flush()
def send(self, text, error=False):
if error:
sys.stderr.write(text)
else:
sys.stdout.write(text)
def sendline(self, text, error=False):
self.send(text + "\n", error=error)
def error(self, text):
self.sendline(self.ui.color("error", text), error=True)
def warn(self, text):
self.sendline(self.ui.color("warn", text), error=True)
def ask_bool(self, question, min_length=None, default=None):
if min_length:
question = question.ljust(min_length, " ")
answer = None
prompt = question + " [yn]: "
if default is not None:
if default is True or default in "yY":
prompt = question + " [Yn]: "
default = True
elif default is False or default in "nN":
prompt = question + " [yN]: "
default = False
else:
default = None
while answer is None:
answer = raw_input(prompt)
if answer:
if answer in "yY":
answer = True
elif answer in "nN":
answer = False
else:
self.error("Invalid response")
answer = None
else:
answer = default
return answer
def ask_str(self, question, min_length=None):
if min_length:
question = question.ljust(min_length, " ")
answer = None
prompt = question + ": "
while answer is None:
answer = raw_input(prompt)
if not answer:
answer = None
return answer
# Commands
def command_add(self, obj):
self.commands[obj.name] = obj
self.commands[obj.name].cli = self
def command_run(self, name, args):
if name not in self.commands:
matches = []
for state in xrange(0, len(self.commands)):
match = self.complete(name, state)
if match is None:
break
else:
matches.append(match)
# One possible match, complete it
if len(matches) == 1:
return self.command_run(matches[0], args)
return False
if not self.commands[name].valid_in_context(self.context):
print "Not valid in context"
return False
try:
self.commands[name].run(*args)
except TypeError, e:
msg = e.message
info = RE_RUN_GIVEN.search(e.message)
if info:
# Function arguments count (minus self)
args = self.commands[name].run.func_code.co_argcount - 1
try:
least = args - len(self.commands[name].run.func_defaults)
except TypeError:
least = 0
# Given arguments count (minus self)
given = int(info.groupdict()["given"]) - 1
if args == least:
error = "exactly"
count = args
elif given < least:
error = "at least"
count = least
elif given > args:
error = "at most"
count = args
else:
print "huh?", args, least, given
return
plural = ""
if count != 1:
plural = "s"
self.error("Syntax error: %s takes %s %d argument%s (%d given)" % (name, error, count, plural, given))
return True
else:
print dir(e)
print e.message
print e.args
raise
return True
