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#!/usr/bin/env python
# BootConf.py
#
# The command line interface for BootConf, a network boot configuration
# library ...
#
# Michael DeHaan <mdehaan@redhat.com>
import os
import sys
import getopt
import traceback
import api
import util
from msg import *
class BootCLI:
"""
Build the command line parser and API instances, etc.
"""
def __init__(self,args):
self.args = args
self.api = api.BootAPI()
self.distro_commands = {
'add' : self.distro_edit,
'edit' : self.distro_edit,
'delete' : self.distro_remove,
'remove' : self.distro_remove,
'list' : self.distro_list
}
self.group_commands = {
'add' : self.group_edit,
'edit' : self.group_edit,
'delete' : self.group_remove,
'remove' : self.group_remove,
'list' : self.group_list
}
self.system_commands = {
'add' : self.system_edit,
'edit' : self.system_edit,
'delete' : self.system_remove,
'remove' : self.system_remove,
'list' : self.system_list
}
self.toplevel_commands = {
'check' : self.check,
'distros' : self.distro,
'distro' : self.distro,
'groups' : self.group,
'group' : self.group,
'systems' : self.system,
'system' : self.system,
'sync' : self.sync,
'help' : self.help
}
"""
Run the command line
"""
def run(self):
rc = self.curry_args(self.args[1:], self.toplevel_commands)
if not rc:
print self.api.last_error
return rc
"""
Print out abbreviated help if user gives bad syntax
"""
def usage(self):
print m("usage")
return False
"""
Print out tediously wrong help: 'bootconf help'
"""
def help(self,args):
print m("help")
return False
"""
Print out the list of systems: 'bootconf system list'
"""
def system_list(self,args):
print str(self.api.get_systems())
"""
Print out the list of groups: 'bootconf group list'
"""
def group_list(self,args):
print str(self.api.get_groups())
"""
Print out the list of distros: 'bootconf distro list'
"""
def distro_list(self,args):
print str(self.api.get_distros())
"""
Delete a system: 'bootconf system remove --name=foo'
"""
def system_remove(self,args):
commands = {
'--name' : lambda(a): self.api.get_systems().remove(a)
}
on_ok = lambda: True
return self.apply_args(args,commands,on_ok,True)
"""
Delete a group: 'bootconf group remove --name=foo'
"""
def group_remove(self,args):
commands = {
'--name' : lambda(a): self.api.get_groups().remove(a)
}
on_ok = lambda: True
return self.apply_args(args,commands,on_ok,True)
"""
Delete a distro: 'bootconf distro remove --name='foo'
"""
def distro_remove(self,args):
commands = {
'--name' : lambda(a): self.api.get_distros().remove(a)
}
on_ok = lambda: True
return self.apply_args(args,commands,on_ok,True)
"""
Create/Edit a system: 'bootconf system edit --name='foo' ...
"""
def system_edit(self,args):
sys = self.api.new_system()
commands = {
'--name' : lambda(a) : sys.set_name(a),
'--group' : lambda(a) : sys.set_group(a),
'--kopts' : lambda(a) : sys.set_kernel_options(a)
}
on_ok = lambda: self.api.get_systems().add(sys)
return self.apply_args(args,commands,on_ok,True)
"""
Create/Edit a group: 'bootconf group edit --name='foo' ...
"""
def group_edit(self,args):
group = self.api.new_group()
commands = {
'--name' : lambda(a) : group.set_name(a),
'--distro' : lambda(a) : group.set_distro(a),
'--kickstart' : lambda(a) : group.set_kickstart(a),
'--kopts' : lambda(a) : group.set_kernel_options(a)
}
on_ok = lambda: self.api.get_groups().add(group)
return self.apply_args(args,commands,on_ok,True)
"""
Create/Edit a distro: 'bootconf distro edit --name='foo' ...
"""
def distro_edit(self,args):
distro = self.api.new_distro()
commands = {
'--name' : lambda(a) : distro.set_name(a),
'--kernel' : lambda(a) : distro.set_kernel(a),
'--initrd' : lambda(a) : distro.set_initrd(a),
'--kopts' : lambda(a) : distro.set_kernel_options(a)
}
on_ok = lambda: self.api.get_distros().add(distro)
return self.apply_args(args,commands,on_ok,True)
"""
Instead of getopt...
Parses arguments of the form --foo=bar, see group_edit for example
"""
def apply_args(self,args,input_routines,on_ok,serialize):
if len(args) == 0:
print m("no_args")
return False
for x in args:
try:
key, value = x.split("=",1)
value = value.replace('"','').replace("'",'')
except:
print m("bad_arg") % x
return False
if key in input_routines:
if not input_routines[key](value):
print m("reject_arg") % key
return False
else:
print m("weird_arg") % key
return False
rc = on_ok()
if rc and serialize:
self.api.serialize()
return rc
"""
Helper function to make subcommands a bit more friendly.
See group(), system(), or distro() for examples
"""
def curry_args(self, args, commands):
if args is None or len(args) == 0:
print m("help")
return False
if args[0] in commands:
rc = commands[args[0]](args[1:])
if not rc:
return False
else:
print m("unknown_cmd") % args[0]
return False
return True
"""
Sync the config file with the system config: 'bootconf sync [--dryrun]'
"""
def sync(self, args):
status = None
if args is not None and "--dryrun" in args:
status = self.api.sync(dry_run=True)
else:
status = self.api.sync(dry_run=False)
return status
"""
Check system for network boot decency/prereqs: 'bootconf check'
"""
def check(self,args):
status = self.api.check()
if status is None:
return False
elif len(status) == 0:
print m("check_ok")
return True
else:
print m("need_to_fix")
for i,x in enumerate(status):
print "#%d: %s" % (i,x)
return False
"""
Handles any of the 'bootconf distro' subcommands
"""
def distro(self,args):
return self.curry_args(args, self.distro_commands)
"""
Handles any of the 'bootconf group' subcommands
"""
def group(self,args):
return self.curry_args(args, self.group_commands)
"""
Handles any of the 'bootconf system' subcommands
"""
def system(self,args):
return self.curry_args(args, self.system_commands)
if __name__ == "__main__":
if os.getuid() != 0:
print m("need_root")
sys.exit(1)
if BootCLI(sys.argv).run():
sys.exit(0)
else:
sys.exit(1)
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