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restructured a bit

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This commit is contained in:
Rafael.Timmerberg 2013-08-20 00:49:04 +02:00
commit e8462537d3
3 changed files with 89 additions and 83 deletions
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120
lib/frontends/lish.py
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@ -4,47 +4,8 @@ Lish is the Linspector Interactive Shell...
This will become a commandline interface to Linspector. Think of a network switch or router like those from Cisco.
"""
# what is this?
#from requests.status_codes import title
'''
#see http://docs.python.org/dev/library/argparse.html
Cheat Sheet:
++++++++++++ Argument Parser creation +++++++++++++++++
prog - The name of the program (default: sys.argv[0])
usage - The string describing the program usage (default: generated from arguments added to parser)
description - Text to display before the argument help (default: none)
epilog - Text to display after the argument help (default: none)
parents - A list of ArgumentParser objects whose arguments should also be included
formatter_class - A class for customizing the help output
prefix_chars - The set of characters that prefix optional arguments (default: -)
fromfile_prefix_chars - The set of characters that prefix files from which additional arguments should be read (default: None)
argument_default - The global default value for arguments (default: None)
conflict_handler - The strategy for resolving conflicting optionals (usually unnecessary)
++++++++++++++++++ add_argument() +++++++++++++++++++++
name or flags - Either a name or a list of option strings, e.g. foo or -f, --foo.
action - The basic type of action to be taken when this argument is encountered at the command line.
nargs - The number of command-line arguments that should be consumed.
const - A constant value required by some action and nargs selections.
default - The value produced if the argument is absent from the command line.
type - The type to which the command-line argument should be converted.
choices - A container of the allowable values for the argument.
required - Whether or not the command-line option may be omitted (optionals only).
help - A brief description of what the argument does.
metavar - A name for the argument in usage messages.
dest - The name of the attribute to be added to the object returned by parse_args().
+++++++ add_subparsers()-> obj with one method -> add_parser() +++++++++
'''
from lib.frontends.frontend import Frontend
import argparse
import os
from shlex import split as shsplit
from cmd import Cmd
@ -58,8 +19,6 @@ class LishFrontend(Frontend):
print(kwargs)
#self.jobs = kwargs["jobs"]
ns = argparse.Namespace()
commander = LishCommander(kwargs)
run = True
while run:
@ -74,10 +33,25 @@ class LishFrontend(Frontend):
run = False
class Exit(Cmd, object):
class CommandBase(Cmd, object):
def __init__(self):
super(CommandBase, self).__init__()
self._needs_update = False
def get_completion(self, args, text, showOnZeroText=True):
if len(text) == 0 and showOnZeroText:
return args
else:
return [x for x in args if x.startswith(text)]
class Exit(CommandBase, object):
def __init__(self):
super(Exit, self).__init__()
self._canExit = False
self.set_can_exit(False)
def set_can_exit(self, canExit=True):
self._canExit = canExit
def can_exit(self):
return self._canExit
@ -101,13 +75,24 @@ class LogCommander(Cmd, object):
print("manage logging")
class ShellCommander(Cmd, object):
class ShellCommander(CommandBase, object):
def do_shell(self, text):
os.system(text)
def help_shell(self):
print("execute any shell command. Can also be achieved by a '!' postfix")
def complete_shell(self, text, line, begidx, endidx):
try:
PATH = os.environ['PATH'].split(os.pathsep)
bins = []
for p in PATH:
bins.extend(os.listdir(p))
return self.get_completion(bins, text, False)
except:
pass
class HostgroupCommander(Exit, object):
def __init__(self, hostgroup):
@ -133,7 +118,7 @@ class LishCommander(Exit, ShellCommander, LogCommander):
self.prompt = "<Lish>: "
self._layouts = kwargs["layouts"]
self._linConf = kwargs["linspectorConfig"]
self._jobs = kwargs["jobs"]
self._scheduler = kwargs["scheduler"]
@ -144,32 +129,37 @@ class LishCommander(Exit, ShellCommander, LogCommander):
if args[0] == "list":
print("current active Hostgroups:\n")
for l in self._layouts:
if l.is_enabled():
print l.get_name()
space = 4 * " "
for hg in l.get_hostgroups():
print space + hg.get_name()
for l in self._linConf.get_enabled_layouts():
print l.get_name()
space = 4 * " "
for hg in l.get_hostgroups():
print space + hg.get_name()
print 3 * "\n"
elif args[0] == "select":
hostgroupName = args[1]
if len(hostgroupName) == 0:
print "must select an hostgroup"
for layout in self._layouts:
for lhg in layout.get_hostgroups():
if lhg.get_name() == hostgroupName:
try:
hgCommander = HostgroupCommander(lhg)
hgCommander.cmdloop("Entering Hostmode of " + hostgroupName)
except KeyboardInterrupt, ke:
pass
if len(args) < 2 or len(args[1]) == 0:
print("must select an hostgroup")
else:
hgName = args[1]
hg = self._linConf.get_hostgroup_by_name(hgName)
if hg is None:
print("unknown hostgroup %s! type hostgroup list to get a list of hostgroups" % hgName)
else:
try:
hgCommander = HostgroupCommander(hg)
hgCommander.cmdloop("Entering Hostmode of " + hgName + ":\n")
except KeyboardInterrupt, ke:
pass
def help_hostgroup(self):
print '''
help for Hostgroup
usage:
hostgroup list
prints a list of all hostgroups
hostgroup select HOSTGROUPNAME
select a hostgroup to make changes on it
'''
def complete_hostgroup(self, text, line, begidx, endidx):
"hostgroup + ' '"
if begidx == 10:
return [x for x in self._hostgroupArgs if x.startswith(text)] if len(text) > 0 else self._hostgroupArgs
return [x for x in self._hostgroupArgs if x.startswith(text)] if len(text) > 0 else self._hostgroupArgs