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#!/usr/bin/env python
# Michael DeHaan <mdehaan@redhat.com>
"""
Command line interface for BootConf, a network boot configuration
library
"""
import os
import sys
import api
from msg import *
class BootCLI:
def __init__(self,args):
"""
Build the command line parser and API instances, etc.
"""
self.args = args
self.api = api.BootAPI()
self.commands = {}
self.commands['distro'] = {
'add' : self.distro_edit,
'edit' : self.distro_edit,
'delete' : self.distro_remove,
'remove' : self.distro_remove,
'list' : self.distro_list
}
self.commands['profile'] = {
'add' : self.profile_edit,
'edit' : self.profile_edit,
'delete' : self.profile_remove,
'remove' : self.profile_remove,
'list' : self.profile_list
}
self.commands['system'] = {
'add' : self.system_edit,
'edit' : self.system_edit,
'delete' : self.system_remove,
'remove' : self.system_remove,
'list' : self.system_list
}
self.commands['toplevel'] = {
'check' : self.check,
'distros' : self.distro,
'distro' : self.distro,
'profiles' : self.profile,
'profile' : self.profile,
'systems' : self.system,
'system' : self.system,
'sync' : self.sync,
'--help' : self.usage,
'/?' : self.usage
}
def run(self):
"""
Run the command line
"""
rc = self.curry_args(self.args[1:], self.commands['toplevel'])
if not rc:
print self.api.last_error
return rc
def usage(self,args):
"""
Print out abbreviated help if user gives bad syntax
"""
print m("usage")
return False
def system_list(self,args):
"""
Print out the list of systems: '$0 system list'
"""
print str(self.api.get_systems())
def profile_list(self,args):
"""
Print out the list of profiles: '$0 profile list'
"""
print str(self.api.get_profiles())
def distro_list(self,args):
"""
Print out the list of distros: '$0 distro list'
"""
print str(self.api.get_distros())
def system_remove(self,args):
"""
Delete a system: '$0 system remove --name=foo'
"""
commands = {
'--name' : lambda(a): self.api.get_systems().remove(a)
}
on_ok = lambda: True
return self.apply_args(args,commands,on_ok,True)
def profile_remove(self,args):
"""
Delete a profile: '$0 profile remove --name=foo'
"""
commands = {
'--name' : lambda(a): self.api.get_profiles().remove(a)
}
on_ok = lambda: True
return self.apply_args(args,commands,on_ok,True)
def distro_remove(self,args):
"""
Delete a distro: '$0 distro remove --name='foo'
"""
commands = {
'--name' : lambda(a): self.api.get_distros().remove(a)
}
on_ok = lambda: True
return self.apply_args(args,commands,on_ok,True)
def system_edit(self,args):
"""
Create/Edit a system: '$0 system edit --name='foo' ...
"""
sys = self.api.new_system()
commands = {
'--name' : lambda(a) : sys.set_name(a),
'--profile' : lambda(a) : sys.set_profile(a),
'--profiles' : lambda(a) : sys.set_profile(a), # alias
'--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)
def profile_edit(self,args):
"""
Create/Edit a profile: '$0 profile edit --name='foo' ...
"""
profile = self.api.new_profile()
commands = {
'--name' : lambda(a) : profile.set_name(a),
'--distro' : lambda(a) : profile.set_distro(a),
'--kickstart' : lambda(a) : profile.set_kickstart(a),
'--kopts' : lambda(a) : profile.set_kernel_options(a),
'--xen-name' : lambda(a) : profile.set_xen_name(a),
'--xen-file-size' : lambda(a) : profile.set_xen_file_size(a),
'--xen-ram' : lambda(a) : profile.set_xen_ram(a),
'--xen-mac' : lambda(a) : profile.set_xen_mac(a),
'--xen-paravirt' : lambda(a) : profile.set_xen_paravirt(a),
# FIXME: more Xen opts that xen-guest-install needs
}
on_ok = lambda: self.api.get_profiles().add(profile)
return self.apply_args(args,commands,on_ok,True)
def distro_edit(self,args):
"""
Create/Edit a distro: '$0 distro edit --name='foo' ...
"""
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)
def apply_args(self,args,input_routines,on_ok,serialize):
"""
Instead of getopt...
Parses arguments of the form --foo=bar, see profile_edit for example
"""
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
def curry_args(self, args, commands):
"""
Helper function to make subcommands a bit more friendly.
See profiles(), system(), or distro() for examples
"""
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
def sync(self, args):
"""
Sync the config file with the system config: '$0 sync [--dryrun]'
"""
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
def check(self,args):
"""
Check system for network boot decency/prereqs: '$0 check'
"""
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
def distro(self,args):
"""
Handles any of the '$0 distro' subcommands
"""
return self.curry_args(args, self.commands['distro'])
def profile(self,args):
"""
Handles any of the '$0 profile' subcommands
"""
return self.curry_args(args, self.commands['profile'])
def system(self,args):
"""
Handles any of the '$0 system' subcommands
"""
return self.curry_args(args, self.commands['system'])
if __name__ == "__main__":
if os.getuid() != 0: # FIXME
print m("need_root")
sys.exit(1)
if BootCLI(sys.argv).run():
sys.exit(0)
else:
sys.exit(1)
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