merged cleanup branch with master
This commit is contained in:
Rod A Santiago
parent
0a91fe7a3e
commit
55a6e2dcef
81 changed files with 11596 additions and 15021 deletions
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@ -7,160 +7,177 @@
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# authors: Tom Goff <thomas.goff@boeing.com>
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# Jeff Ahrenholz <jeffrey.m.ahrenholz@boeing.com>
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#
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'''
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core-daemon: the CORE daemon is a server process that receives CORE API
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"""
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core-daemon: the CORE daemon is a server process that receives CORE API
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messages and instantiates emulated nodes and networks within the kernel. Various
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message handlers are defined and some support for sending messages.
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'''
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"""
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import os, optparse, ConfigParser, gc, shlex, socket, shutil
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import ConfigParser
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import atexit
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import signal
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import importlib
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import logging
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import optparse
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import os
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import signal
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import socket
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import sys
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import threading
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import time
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try:
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from core import pycore
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except ImportError:
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# hack for Fedora autoconf that uses the following pythondir:
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if "/usr/lib/python2.6/site-packages" in sys.path:
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sys.path.append("/usr/local/lib/python2.6/site-packages")
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if "/usr/lib64/python2.6/site-packages" in sys.path:
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sys.path.append("/usr/local/lib64/python2.6/site-packages")
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if "/usr/lib/python2.7/site-packages" in sys.path:
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sys.path.append("/usr/local/lib/python2.7/site-packages")
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if "/usr/lib64/python2.7/site-packages" in sys.path:
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sys.path.append("/usr/local/lib64/python2.7/site-packages")
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from core import pycore
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from core.coreserver import *
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from core.constants import *
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from core import constants
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from core import corehandlers
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from core import coreserver
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from core import enumerations
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from core.api import coreapi
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from core.misc.utils import daemonize, closeonexec
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from core.corehandlers import CoreDatagramRequestHandler
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from core.enumerations import MessageFlags
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from core.enumerations import RegisterTlvs
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from core.misc import log
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from core.misc import nodemaps
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from core.misc import nodeutils
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from core.misc.utils import closeonexec
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from core.misc.utils import daemonize
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from core.services import bird
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from core.services import dockersvc
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from core.services import nrl
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from core.services import quagga
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from core.services import security
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from core.services import startup
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from core.services import ucarp
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from core.services import utility
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from core.services import xorp
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logger = log.get_logger(__name__)
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DEFAULT_MAXFD = 1024
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# garbage collection debugging
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# gc.set_debug(gc.DEBUG_STATS | gc.DEBUG_LEAK)
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def startudp(core_server, server_address):
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"""
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Start a thread running a UDP server on the same host,port for connectionless requests.
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:param core.coreserver.CoreServer core_server: core server instance
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:param tuple[str, int] server_address: server address
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:return: created core udp server
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:rtype: core.coreserver.CoreUdpServer
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"""
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core_server.udpserver = coreserver.CoreUdpServer(server_address, CoreDatagramRequestHandler, core_server)
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core_server.udpthread = threading.Thread(target=core_server.udpserver.start)
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core_server.udpthread.daemon = True
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core_server.udpthread.start()
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return core_server.udpserver
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coreapi.add_node_class("CORE_NODE_DEF",
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coreapi.CORE_NODE_DEF, pycore.nodes.CoreNode)
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coreapi.add_node_class("CORE_NODE_PHYS",
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coreapi.CORE_NODE_PHYS, pycore.pnodes.PhysicalNode)
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try:
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coreapi.add_node_class("CORE_NODE_XEN",
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coreapi.CORE_NODE_XEN, pycore.xen.XenNode)
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except Exception:
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#print "XenNode class unavailable."
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pass
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coreapi.add_node_class("CORE_NODE_TBD",
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coreapi.CORE_NODE_TBD, None)
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coreapi.add_node_class("CORE_NODE_SWITCH",
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coreapi.CORE_NODE_SWITCH, pycore.nodes.SwitchNode)
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coreapi.add_node_class("CORE_NODE_HUB",
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coreapi.CORE_NODE_HUB, pycore.nodes.HubNode)
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coreapi.add_node_class("CORE_NODE_WLAN",
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coreapi.CORE_NODE_WLAN, pycore.nodes.WlanNode)
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coreapi.add_node_class("CORE_NODE_RJ45",
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coreapi.CORE_NODE_RJ45, pycore.nodes.RJ45Node)
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coreapi.add_node_class("CORE_NODE_TUNNEL",
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coreapi.CORE_NODE_TUNNEL, pycore.nodes.TunnelNode)
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coreapi.add_node_class("CORE_NODE_EMANE",
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coreapi.CORE_NODE_EMANE, pycore.nodes.EmaneNode)
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#
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# UDP server startup
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#
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def startudp(mainserver, server_address):
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''' Start a thread running a UDP server on the same host,port for
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connectionless requests.
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'''
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mainserver.udpserver = CoreUdpServer(server_address,
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CoreDatagramRequestHandler, mainserver)
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mainserver.udpthread = threading.Thread(target = mainserver.udpserver.start)
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mainserver.udpthread.daemon = True
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mainserver.udpthread.start()
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return mainserver.udpserver
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#
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# Auxiliary server startup
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#
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def startaux(mainserver, aux_address, aux_handler):
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''' Start a thread running an auxiliary TCP server on the given address.
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def startaux(core_server, aux_address, aux_handler):
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"""
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Start a thread running an auxiliary TCP server on the given address.
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This server will communicate with client requests using a handler
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using the aux_handler class. The aux_handler can provide an alternative
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using the aux_handler class. The aux_handler can provide an alternative
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API to CORE.
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'''
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handlermodname,dot,handlerclassname = aux_handler.rpartition('.')
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:param core.coreserver.CoreServer core_server: core server instance
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:param tuple[str, int] aux_address: auxiliary server address
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:param str aux_handler: auxiliary handler string to import
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:return: auxiliary server
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"""
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handlermodname, dot, handlerclassname = aux_handler.rpartition(".")
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handlermod = importlib.import_module(handlermodname)
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handlerclass = getattr(handlermod, handlerclassname)
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mainserver.auxserver = CoreAuxServer(aux_address,
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handlerclass,
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mainserver)
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mainserver.auxthread = threading.Thread(target = mainserver.auxserver.start)
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mainserver.auxthread.daemon = True
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mainserver.auxthread.start()
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return mainserver.auxserver
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core_server.auxserver = coreserver.CoreAuxServer(aux_address, handlerclass, core_server)
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core_server.auxthread = threading.Thread(target=core_server.auxserver.start)
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core_server.auxthread.daemon = True
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core_server.auxthread.start()
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return core_server.auxserver
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def banner():
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''' Output the program banner printed to the terminal or log file.
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'''
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sys.stdout.write("CORE daemon v.%s started %s\n" % \
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(COREDPY_VERSION, time.ctime()))
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sys.stdout.flush()
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"""
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Output the program banner printed to the terminal or log file.
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:return: nothing
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"""
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logger.info("CORE daemon v.%s started %s\n" % (constants.COREDPY_VERSION, time.ctime()))
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def cored(cfg = None):
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''' Start the CoreServer object and enter the server loop.
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'''
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host = cfg['listenaddr']
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port = int(cfg['port'])
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if host == '' or host is None:
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def cored(cfg=None):
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"""
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Start the CoreServer object and enter the server loop.
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:param dict cfg: core configuration
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:return: nothing
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"""
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host = cfg["listenaddr"]
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port = int(cfg["port"])
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if host == "" or host is None:
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host = "localhost"
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try:
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server = CoreServer((host, port), CoreRequestHandler, cfg)
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except Exception, e:
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sys.stderr.write("error starting main server on: %s:%s\n\t%s\n" % \
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(host, port, e))
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sys.stderr.flush()
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server = coreserver.CoreServer((host, port), corehandlers.CoreRequestHandler, cfg)
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except:
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logger.exception("error starting main server on: %s:%s", host, port)
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sys.exit(1)
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closeonexec(server.fileno())
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sys.stdout.write("main server started, listening on: %s:%s\n" % (host, port))
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sys.stdout.flush()
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udpserver = startudp(server, (host,port))
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closeonexec(server.fileno())
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logger.info("main server started, listening on: %s:%s\n" % (host, port))
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udpserver = startudp(server, (host, port))
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closeonexec(udpserver.fileno())
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auxreqhandler = cfg['aux_request_handler']
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auxreqhandler = cfg["aux_request_handler"]
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if auxreqhandler:
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try:
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handler, auxport = auxreqhandler.rsplit(':')
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auxserver = startaux(server, (host,int(auxport)), handler)
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closeonexec(auxserver.fileno())
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except Exception as e:
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raise ValueError, "invalid auxreqhandler:(%s)\nError: %s" % (auxreqhandler, e)
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handler, auxport = auxreqhandler.rsplit(":")
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auxserver = startaux(server, (host, int(auxport)), handler)
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closeonexec(auxserver.fileno())
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server.serve_forever()
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# TODO: should sessions and the main core daemon both catch at exist to shutdown independently?
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def cleanup():
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while CoreServer.servers:
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server = CoreServer.servers.pop()
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"""
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Runs server shutdown and cleanup when catching an exit signal.
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:return: nothing
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"""
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while coreserver.CoreServer.servers:
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server = coreserver.CoreServer.servers.pop()
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server.shutdown()
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atexit.register(cleanup)
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def sighandler(signum, stackframe):
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print >> sys.stderr, "terminated by signal:", signum
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"""
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Signal handler when different signals are sent.
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:param int signum: singal number sent
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:param stackframe: stack frame sent
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:return: nothing
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"""
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logger.error("terminated by signal: %s", signum)
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sys.exit(signum)
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signal.signal(signal.SIGHUP, sighandler)
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signal.signal(signal.SIGINT, sighandler)
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signal.signal(signal.SIGTERM, sighandler)
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signal.signal(signal.SIGUSR1, sighandler)
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signal.signal(signal.SIGUSR2, sighandler)
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def logrotate(stdout, stderr, stdoutmode = 0644, stderrmode = 0644):
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def logrotate(stdout, stderr, stdoutmode=0644, stderrmode=0644):
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"""
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Log rotation method.
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:param stdout: stdout
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:param stderr: stderr
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:param int stdoutmode: stdout mode
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:param int stderrmode: stderr mode
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:return:
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"""
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def reopen(fileno, filename, mode):
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err = 0
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fd = -1
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@ -174,6 +191,7 @@ def logrotate(stdout, stderr, stdoutmode = 0644, stderrmode = 0644):
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if fd >= 0:
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os.close(fd)
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return err
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if stdout:
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err = reopen(1, stdout, stdoutmode)
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if stderr:
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@ -185,59 +203,64 @@ def logrotate(stdout, stderr, stdoutmode = 0644, stderrmode = 0644):
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else:
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reopen(2, stderr, stderrmode)
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def getMergedConfig(filename):
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''' Return a configuration after merging config file and command-line
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arguments.
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'''
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def get_merged_config(filename):
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"""
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Return a configuration after merging config file and command-line arguments.
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:param str filename: file name to merge configuration settings with
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:return: merged configuration
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:rtype: dict
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"""
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# these are the defaults used in the config file
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defaults = { 'port' : '%d' % coreapi.CORE_API_PORT,
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'listenaddr' : 'localhost',
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'pidfile' : '%s/run/core-daemon.pid' % CORE_STATE_DIR,
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'logfile' : '%s/log/core-daemon.log' % CORE_STATE_DIR,
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'xmlfilever' : '1.0',
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'numthreads' : '1',
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'verbose' : 'False',
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'daemonize' : 'False',
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'debug' : 'False',
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'execfile' : None,
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'aux_request_handler' : None,
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}
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defaults = {"port": "%d" % enumerations.CORE_API_PORT,
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"listenaddr": "localhost",
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"pidfile": "%s/run/core-daemon.pid" % constants.CORE_STATE_DIR,
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"logfile": "%s/log/core-daemon.log" % constants.CORE_STATE_DIR,
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"xmlfilever": "1.0",
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"numthreads": "1",
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"verbose": "False",
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"daemonize": "False",
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"debug": "False",
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"execfile": None,
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"aux_request_handler": None,
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}
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usagestr = "usage: %prog [-h] [options] [args]\n\n" + \
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"CORE daemon v.%s instantiates Linux network namespace " \
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"nodes." % COREDPY_VERSION
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parser = optparse.OptionParser(usage = usagestr)
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parser.add_option("-f", "--configfile", dest = "configfile",
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type = "string",
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help = "read config from specified file; default = %s" %
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filename)
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parser.add_option("-d", "--daemonize", dest = "daemonize",
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"nodes." % constants.COREDPY_VERSION
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parser = optparse.OptionParser(usage=usagestr)
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parser.add_option("-f", "--configfile", dest="configfile",
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type="string",
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help="read config from specified file; default = %s" %
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filename)
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parser.add_option("-d", "--daemonize", dest="daemonize",
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action="store_true",
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help = "run in background as daemon; default=%s" % \
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defaults["daemonize"])
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parser.add_option("-e", "--execute", dest = "execfile", type = "string",
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help = "execute a Python/XML-based session")
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parser.add_option("-l", "--logfile", dest = "logfile", type = "string",
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help = "log output to specified file; default = %s" %
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defaults["logfile"])
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parser.add_option("-p", "--port", dest = "port", type = int,
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help = "port number to listen on; default = %s" % \
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defaults["port"])
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parser.add_option("-i", "--pidfile", dest = "pidfile",
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help = "filename to write pid to; default = %s" % \
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defaults["pidfile"])
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parser.add_option("-t", "--numthreads", dest = "numthreads", type = int,
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help = "number of server threads; default = %s" % \
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defaults["numthreads"])
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parser.add_option("-v", "--verbose", dest = "verbose", action="store_true",
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help = "enable verbose logging; default = %s" % \
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defaults["verbose"])
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parser.add_option("-g", "--debug", dest = "debug", action="store_true",
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help = "enable debug logging; default = %s" % \
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defaults["debug"])
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help="run in background as daemon; default=%s" % \
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defaults["daemonize"])
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parser.add_option("-e", "--execute", dest="execfile", type="string",
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help="execute a Python/XML-based session")
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parser.add_option("-l", "--logfile", dest="logfile", type="string",
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help="log output to specified file; default = %s" %
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defaults["logfile"])
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parser.add_option("-p", "--port", dest="port", type=int,
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help="port number to listen on; default = %s" % \
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defaults["port"])
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parser.add_option("-i", "--pidfile", dest="pidfile",
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help="filename to write pid to; default = %s" % \
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defaults["pidfile"])
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parser.add_option("-t", "--numthreads", dest="numthreads", type=int,
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help="number of server threads; default = %s" % \
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defaults["numthreads"])
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parser.add_option("-v", "--verbose", dest="verbose", action="store_true",
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help="enable verbose logging; default = %s" % \
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defaults["verbose"])
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parser.add_option("-g", "--debug", dest="debug", action="store_true",
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help="enable debug logging; default = %s" % \
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defaults["debug"])
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# parse command line options
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(options, args) = parser.parse_args()
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options, args = parser.parse_args()
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# read the config file
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if options.configfile is not None:
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|
|
@ -252,17 +275,17 @@ def getMergedConfig(filename):
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# gracefully support legacy configs (cored.py/cored now core-daemon)
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if cfg.has_section("cored.py"):
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for name, val in cfg.items("cored.py"):
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if name == 'pidfile' or name == 'logfile':
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bn = os.path.basename(val).replace('coredpy', 'core-daemon')
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if name == "pidfile" or name == "logfile":
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bn = os.path.basename(val).replace("coredpy", "core-daemon")
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val = os.path.join(os.path.dirname(val), bn)
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cfg.set(section, name, val)
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if cfg.has_section("cored"):
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for name, val in cfg.items("cored"):
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if name == 'pidfile' or name == 'logfile':
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bn = os.path.basename(val).replace('cored', 'core-daemon')
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if name == "pidfile" or name == "logfile":
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bn = os.path.basename(val).replace("cored", "core-daemon")
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val = os.path.join(os.path.dirname(val), bn)
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cfg.set(section, name, val)
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# merge command line with config file
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||||
for opt in options.__dict__:
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val = options.__dict__[opt]
|
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|
|
@ -271,49 +294,74 @@ def getMergedConfig(filename):
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|||
|
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return dict(cfg.items(section)), args
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||||
|
||||
|
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def exec_file(cfg):
|
||||
''' Send a Register Message to execute a new session based on XML or Python
|
||||
script file.
|
||||
'''
|
||||
filename = cfg['execfile']
|
||||
sys.stdout.write("Telling daemon to execute file: '%s'...\n" % filename)
|
||||
sys.stdout.flush()
|
||||
tlvdata = coreapi.CoreRegTlv.pack(coreapi.CORE_TLV_REG_EXECSRV, filename)
|
||||
msg = coreapi.CoreRegMessage.pack(coreapi.CORE_API_ADD_FLAG, tlvdata)
|
||||
"""
|
||||
Send a Register Message to execute a new session based on XML or Python script file.
|
||||
|
||||
:param dict cfg: configuration settings
|
||||
:return: 0
|
||||
"""
|
||||
filename = cfg["execfile"]
|
||||
logger.info("Telling daemon to execute file: %s...", filename)
|
||||
tlvdata = coreapi.CoreRegisterTlv.pack(RegisterTlvs.EXECUTE_SERVER.value, filename)
|
||||
msg = coreapi.CoreRegMessage.pack(MessageFlags.ADD.value, tlvdata)
|
||||
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
|
||||
sock.connect(("localhost", int(cfg['port']))) # TODO: connect address option
|
||||
sock.connect(("localhost", int(cfg["port"]))) # TODO: connect address option
|
||||
sock.sendall(msg)
|
||||
return 0
|
||||
|
||||
def main():
|
||||
''' Main program startup.
|
||||
'''
|
||||
# get a configuration merged from config file and command-line arguments
|
||||
cfg, args = getMergedConfig("%s/core.conf" % CORE_CONF_DIR)
|
||||
for a in args:
|
||||
sys.stderr.write("ignoring command line argument: '%s'\n" % a)
|
||||
|
||||
if cfg['daemonize'] == 'True':
|
||||
daemonize(rootdir = None, umask = 0, close_fds = False,
|
||||
stdin = os.devnull,
|
||||
stdout = cfg['logfile'], stderr = cfg['logfile'],
|
||||
pidfilename = cfg['pidfile'],
|
||||
defaultmaxfd = DEFAULT_MAXFD)
|
||||
def main():
|
||||
"""
|
||||
Main program startup.
|
||||
|
||||
:return: nothing
|
||||
"""
|
||||
# get a configuration merged from config file and command-line arguments
|
||||
cfg, args = get_merged_config("%s/core.conf" % constants.CORE_CONF_DIR)
|
||||
for a in args:
|
||||
logger.error("ignoring command line argument: %s", a)
|
||||
|
||||
if cfg["daemonize"] == "True":
|
||||
daemonize(rootdir=None, umask=0, close_fds=False,
|
||||
stdin=os.devnull,
|
||||
stdout=cfg["logfile"], stderr=cfg["logfile"],
|
||||
pidfilename=cfg["pidfile"],
|
||||
defaultmaxfd=DEFAULT_MAXFD)
|
||||
signal.signal(signal.SIGUSR1, lambda signum, stackframe:
|
||||
logrotate(stdout = cfg['logfile'],
|
||||
stderr = cfg['logfile']))
|
||||
logrotate(stdout=cfg["logfile"], stderr=cfg["logfile"]))
|
||||
|
||||
banner()
|
||||
if cfg['execfile']:
|
||||
cfg['execfile'] = os.path.abspath(cfg['execfile'])
|
||||
if cfg["execfile"]:
|
||||
cfg["execfile"] = os.path.abspath(cfg["execfile"])
|
||||
sys.exit(exec_file(cfg))
|
||||
try:
|
||||
cored(cfg)
|
||||
except KeyboardInterrupt:
|
||||
pass
|
||||
logger.info("keyboard interrupt, stopping core daemon")
|
||||
|
||||
sys.exit(0)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
log.setup(level=logging.INFO)
|
||||
|
||||
# configure nodes to use
|
||||
node_map = nodemaps.CLASSIC_NODES
|
||||
if len(sys.argv) == 2 and sys.argv[1] == "ovs":
|
||||
node_map = nodemaps.OVS_NODES
|
||||
nodeutils.set_node_map(node_map)
|
||||
|
||||
# load default services
|
||||
quagga.load_services()
|
||||
nrl.load_services()
|
||||
xorp.load_services()
|
||||
bird.load_services()
|
||||
utility.load_services()
|
||||
security.load_services()
|
||||
ucarp.load_services()
|
||||
dockersvc.load_services()
|
||||
startup.load_services()
|
||||
|
||||
main()
|
||||
|
|
|
|||
|
|
@ -6,29 +6,31 @@
|
|||
#
|
||||
# author: Jeff Ahrenholz <jeffrey.m.ahrenholz@boeing.com>
|
||||
#
|
||||
'''
|
||||
"""
|
||||
core-manage: Helper tool to add, remove, or check for services, models, and
|
||||
node types in a CORE installation.
|
||||
'''
|
||||
"""
|
||||
|
||||
import os
|
||||
import sys
|
||||
import ast
|
||||
import optparse
|
||||
import os
|
||||
import re
|
||||
import sys
|
||||
|
||||
from core import pycore
|
||||
from core import services
|
||||
from core.constants import CORE_CONF_DIR
|
||||
|
||||
|
||||
class FileUpdater(object):
|
||||
''' Helper class for changing configuration files.
|
||||
'''
|
||||
"""
|
||||
Helper class for changing configuration files.
|
||||
"""
|
||||
actions = ("add", "remove", "check")
|
||||
targets = ("service", "model", "nodetype")
|
||||
|
||||
def __init__(self, action, target, data, options):
|
||||
'''
|
||||
'''
|
||||
"""
|
||||
"""
|
||||
self.action = action
|
||||
self.target = target
|
||||
self.data = data
|
||||
|
|
@ -37,13 +39,13 @@ class FileUpdater(object):
|
|||
self.search, self.filename = self.get_filename(target)
|
||||
|
||||
def process(self):
|
||||
''' Invoke update_file() using a helper method depending on target.
|
||||
'''
|
||||
""" Invoke update_file() using a helper method depending on target.
|
||||
"""
|
||||
if self.verbose:
|
||||
txt = "Updating"
|
||||
if self.action == "check":
|
||||
txt = "Checking"
|
||||
sys.stdout.write("%s file: '%s'\n" % (txt, self.filename))
|
||||
sys.stdout.write("%s file: %s\n" % (txt, self.filename))
|
||||
|
||||
if self.target == "service":
|
||||
r = self.update_file(fn=self.update_services)
|
||||
|
|
@ -64,41 +66,40 @@ class FileUpdater(object):
|
|||
return r
|
||||
|
||||
def update_services(self, line):
|
||||
''' Modify the __init__.py file having this format:
|
||||
""" Modify the __init__.py file having this format:
|
||||
__all__ = ["quagga", "nrl", "xorp", "bird", ]
|
||||
Returns True or False when "check" is the action, a modified line
|
||||
otherwise.
|
||||
'''
|
||||
line = line.strip('\n')
|
||||
key, valstr = line.split('= ')
|
||||
"""
|
||||
line = line.strip("\n")
|
||||
key, valstr = line.split("= ")
|
||||
vals = ast.literal_eval(valstr)
|
||||
r = self.update_keyvals(key, vals)
|
||||
if self.action == "check":
|
||||
return r
|
||||
valstr = '%s' % r
|
||||
return '= '.join([key, valstr]) + '\n'
|
||||
|
||||
valstr = "%s" % r
|
||||
return "= ".join([key, valstr]) + "\n"
|
||||
|
||||
def update_emane_models(self, line):
|
||||
''' Modify the core.conf file having this format:
|
||||
""" Modify the core.conf file having this format:
|
||||
emane_models = RfPipe, Ieee80211abg, CommEffect, Bypass
|
||||
Returns True or False when "check" is the action, a modified line
|
||||
otherwise.
|
||||
'''
|
||||
line = line.strip('\n')
|
||||
key, valstr = line.split('= ')
|
||||
vals = valstr.split(', ')
|
||||
"""
|
||||
line = line.strip("\n")
|
||||
key, valstr = line.split("= ")
|
||||
vals = valstr.split(", ")
|
||||
r = self.update_keyvals(key, vals)
|
||||
if self.action == "check":
|
||||
return r
|
||||
valstr = ', '.join(r)
|
||||
return '= '.join([key, valstr]) + '\n'
|
||||
valstr = ", ".join(r)
|
||||
return "= ".join([key, valstr]) + "\n"
|
||||
|
||||
def update_keyvals(self, key, vals):
|
||||
''' Perform self.action on (key, vals).
|
||||
""" Perform self.action on (key, vals).
|
||||
Returns True or False when "check" is the action, a modified line
|
||||
otherwise.
|
||||
'''
|
||||
"""
|
||||
if self.action == "check":
|
||||
if self.data in vals:
|
||||
return True
|
||||
|
|
@ -115,11 +116,10 @@ class FileUpdater(object):
|
|||
return vals
|
||||
|
||||
def get_filename(self, target):
|
||||
''' Return search string and filename based on target.
|
||||
'''
|
||||
""" Return search string and filename based on target.
|
||||
"""
|
||||
if target == "service":
|
||||
pypath = os.path.dirname(pycore.__file__)
|
||||
filename = os.path.join(pypath, "services", "__init__.py")
|
||||
filename = os.path.abspath(services.__file__)
|
||||
search = "__all__ ="
|
||||
elif target == "model":
|
||||
filename = os.path.join(CORE_CONF_DIR, "core.conf")
|
||||
|
|
@ -132,21 +132,21 @@ class FileUpdater(object):
|
|||
else:
|
||||
raise ValueError, "unknown target"
|
||||
if not os.path.exists(filename):
|
||||
raise ValueError, "file '%s' does not exist" % filename
|
||||
raise ValueError, "file %s does not exist" % filename
|
||||
return search, filename
|
||||
|
||||
def update_file(self, fn=None):
|
||||
''' Open a file and search for self.search, invoking the supplied
|
||||
""" Open a file and search for self.search, invoking the supplied
|
||||
function on the matching line. Write file changes if necessary.
|
||||
Returns True if the file has changed (or action is "check" and the
|
||||
search string is found), False otherwise.
|
||||
'''
|
||||
"""
|
||||
changed = False
|
||||
output = "" # this accumulates output, assumes input is small
|
||||
output = "" # this accumulates output, assumes input is small
|
||||
with open(self.filename, "r") as f:
|
||||
for line in f:
|
||||
if line[:len(self.search)] == self.search:
|
||||
r = fn(line) # line may be modified by fn() here
|
||||
r = fn(line) # line may be modified by fn() here
|
||||
if self.action == "check":
|
||||
return r
|
||||
else:
|
||||
|
|
@ -157,17 +157,17 @@ class FileUpdater(object):
|
|||
if changed:
|
||||
with open(self.filename, "w") as f:
|
||||
f.write(output)
|
||||
|
||||
|
||||
return changed
|
||||
|
||||
def update_nodes_conf(self):
|
||||
''' Add/remove/check entries from nodes.conf. This file
|
||||
""" Add/remove/check entries from nodes.conf. This file
|
||||
contains a Tcl-formatted array of node types. The array index must be
|
||||
properly set for new entries. Uses self.{action, filename, search,
|
||||
data} variables as input and returns the same value as update_file().
|
||||
'''
|
||||
"""
|
||||
changed = False
|
||||
output = "" # this accumulates output, assumes input is small
|
||||
output = "" # this accumulates output, assumes input is small
|
||||
with open(self.filename, "r") as f:
|
||||
for line in f:
|
||||
# make sure data is not added twice
|
||||
|
|
@ -181,14 +181,15 @@ class FileUpdater(object):
|
|||
continue
|
||||
else:
|
||||
output += line
|
||||
|
||||
if self.action == "add":
|
||||
index = int(re.match('^\d+', line).group(0))
|
||||
output += str(index + 1) + ' ' + self.data + '\n'
|
||||
index = int(re.match("^\d+", line).group(0))
|
||||
output += str(index + 1) + " " + self.data + "\n"
|
||||
changed = True
|
||||
if changed:
|
||||
with open(self.filename, "w") as f:
|
||||
f.write(output)
|
||||
|
||||
|
||||
return changed
|
||||
|
||||
|
||||
|
|
@ -200,21 +201,21 @@ def main():
|
|||
usagestr += "\n %prog -v check model RfPipe"
|
||||
usagestr += "\n %prog --userpath=\"$HOME/.core\" add nodetype \"{ftp ftp.gif ftp.gif {DefaultRoute FTP} netns {FTP server} }\" \n"
|
||||
usagestr += "\nArguments:\n <action> should be one of: %s" % \
|
||||
', '.join(FileUpdater.actions)
|
||||
", ".join(FileUpdater.actions)
|
||||
usagestr += "\n <target> should be one of: %s" % \
|
||||
', '.join(FileUpdater.targets)
|
||||
", ".join(FileUpdater.targets)
|
||||
usagestr += "\n <string> is the text to %s" % \
|
||||
', '.join(FileUpdater.actions)
|
||||
parser = optparse.OptionParser(usage = usagestr)
|
||||
parser.set_defaults(userpath = None, verbose = False,)
|
||||
", ".join(FileUpdater.actions)
|
||||
parser = optparse.OptionParser(usage=usagestr)
|
||||
parser.set_defaults(userpath=None, verbose=False, )
|
||||
|
||||
parser.add_option("--userpath", dest = "userpath", type = "string",
|
||||
help = "use the specified user path (e.g. \"$HOME/.core" \
|
||||
"\") to access nodes.conf")
|
||||
parser.add_option("-v", "--verbose", dest = "verbose", action="store_true",
|
||||
help = "be verbose when performing action")
|
||||
parser.add_option("--userpath", dest="userpath", type="string",
|
||||
help="use the specified user path (e.g. \"$HOME/.core" \
|
||||
"\") to access nodes.conf")
|
||||
parser.add_option("-v", "--verbose", dest="verbose", action="store_true",
|
||||
help="be verbose when performing action")
|
||||
|
||||
def usage(msg = None, err = 0):
|
||||
def usage(msg=None, err=0):
|
||||
sys.stdout.write("\n")
|
||||
if msg:
|
||||
sys.stdout.write(msg + "\n\n")
|
||||
|
|
@ -228,11 +229,11 @@ def main():
|
|||
|
||||
action = args[0]
|
||||
if action not in FileUpdater.actions:
|
||||
usage("invalid action '%s'" % action, 1)
|
||||
usage("invalid action %s" % action, 1)
|
||||
|
||||
target = args[1]
|
||||
if target not in FileUpdater.targets:
|
||||
usage("invalid target '%s'" % target, 1)
|
||||
usage("invalid target %s" % target, 1)
|
||||
|
||||
if target == "nodetype" and not options.userpath:
|
||||
usage("user path option required for this target (%s)" % target)
|
||||
|
|
@ -249,5 +250,6 @@ def main():
|
|||
sys.exit(1)
|
||||
sys.exit(0)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue