648 lines
18 KiB
Python
648 lines
18 KiB
Python
# ex:ts=4:sw=4:sts=4:et
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# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
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"""
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BitBake 'Event' implementation
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Classes and functions for manipulating 'events' in the
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BitBake build tools.
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"""
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# Copyright (C) 2003, 2004 Chris Larson
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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import os, sys
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import warnings
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try:
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import cPickle as pickle
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except ImportError:
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import pickle
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import logging
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import atexit
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import traceback
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import bb.utils
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import bb.compat
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import bb.exceptions
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# This is the pid for which we should generate the event. This is set when
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# the runqueue forks off.
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worker_pid = 0
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worker_fire = None
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logger = logging.getLogger('BitBake.Event')
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class Event(object):
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"""Base class for events"""
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def __init__(self):
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self.pid = worker_pid
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Registered = 10
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AlreadyRegistered = 14
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def get_class_handlers():
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return _handlers
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def set_class_handlers(h):
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global _handlers
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_handlers = h
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def clean_class_handlers():
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return bb.compat.OrderedDict()
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# Internal
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_handlers = clean_class_handlers()
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_ui_handlers = {}
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_ui_logfilters = {}
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_ui_handler_seq = 0
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_event_handler_map = {}
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_catchall_handlers = {}
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_eventfilter = None
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def execute_handler(name, handler, event, d):
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event.data = d
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try:
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ret = handler(event)
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except (bb.parse.SkipRecipe, bb.BBHandledException):
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raise
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except Exception:
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etype, value, tb = sys.exc_info()
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logger.error("Execution of event handler '%s' failed" % name,
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exc_info=(etype, value, tb.tb_next))
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raise
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except SystemExit as exc:
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if exc.code != 0:
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logger.error("Execution of event handler '%s' failed" % name)
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raise
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finally:
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del event.data
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def fire_class_handlers(event, d):
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if isinstance(event, logging.LogRecord):
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return
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eid = str(event.__class__)[8:-2]
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evt_hmap = _event_handler_map.get(eid, {})
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for name, handler in _handlers.iteritems():
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if name in _catchall_handlers or name in evt_hmap:
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if _eventfilter:
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if not _eventfilter(name, handler, event, d):
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continue
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execute_handler(name, handler, event, d)
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ui_queue = []
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@atexit.register
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def print_ui_queue():
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"""If we're exiting before a UI has been spawned, display any queued
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LogRecords to the console."""
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logger = logging.getLogger("BitBake")
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if not _ui_handlers:
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from bb.msg import BBLogFormatter
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console = logging.StreamHandler(sys.stdout)
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console.setFormatter(BBLogFormatter("%(levelname)s: %(message)s"))
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logger.handlers = [console]
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# First check to see if we have any proper messages
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msgprint = False
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for event in ui_queue:
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if isinstance(event, logging.LogRecord):
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if event.levelno > logging.DEBUG:
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logger.handle(event)
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msgprint = True
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if msgprint:
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return
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# Nope, so just print all of the messages we have (including debug messages)
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for event in ui_queue:
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if isinstance(event, logging.LogRecord):
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logger.handle(event)
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def fire_ui_handlers(event, d):
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if not _ui_handlers:
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# No UI handlers registered yet, queue up the messages
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ui_queue.append(event)
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return
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errors = []
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for h in _ui_handlers:
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#print "Sending event %s" % event
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try:
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if not _ui_logfilters[h].filter(event):
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continue
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# We use pickle here since it better handles object instances
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# which xmlrpc's marshaller does not. Events *must* be serializable
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# by pickle.
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if hasattr(_ui_handlers[h].event, "sendpickle"):
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_ui_handlers[h].event.sendpickle((pickle.dumps(event)))
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else:
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_ui_handlers[h].event.send(event)
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except:
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errors.append(h)
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for h in errors:
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del _ui_handlers[h]
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def fire(event, d):
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"""Fire off an Event"""
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# We can fire class handlers in the worker process context and this is
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# desired so they get the task based datastore.
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# UI handlers need to be fired in the server context so we defer this. They
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# don't have a datastore so the datastore context isn't a problem.
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fire_class_handlers(event, d)
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if worker_fire:
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worker_fire(event, d)
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else:
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fire_ui_handlers(event, d)
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def fire_from_worker(event, d):
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fire_ui_handlers(event, d)
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noop = lambda _: None
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def register(name, handler, mask=[]):
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"""Register an Event handler"""
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# already registered
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if name in _handlers:
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return AlreadyRegistered
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if handler is not None:
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# handle string containing python code
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if isinstance(handler, basestring):
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tmp = "def %s(e):\n%s" % (name, handler)
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try:
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code = compile(tmp, "%s(e)" % name, "exec")
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except SyntaxError:
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logger.error("Unable to register event handler '%s':\n%s", name,
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''.join(traceback.format_exc(limit=0)))
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_handlers[name] = noop
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return
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env = {}
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bb.utils.better_exec(code, env)
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func = bb.utils.better_eval(name, env)
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_handlers[name] = func
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else:
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_handlers[name] = handler
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if not mask or '*' in mask:
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_catchall_handlers[name] = True
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else:
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for m in mask:
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if _event_handler_map.get(m, None) is None:
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_event_handler_map[m] = {}
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_event_handler_map[m][name] = True
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return Registered
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def remove(name, handler):
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"""Remove an Event handler"""
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_handlers.pop(name)
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def set_eventfilter(func):
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global _eventfilter
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_eventfilter = func
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def register_UIHhandler(handler):
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bb.event._ui_handler_seq = bb.event._ui_handler_seq + 1
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_ui_handlers[_ui_handler_seq] = handler
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level, debug_domains = bb.msg.constructLogOptions()
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_ui_logfilters[_ui_handler_seq] = UIEventFilter(level, debug_domains)
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return _ui_handler_seq
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def unregister_UIHhandler(handlerNum):
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if handlerNum in _ui_handlers:
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del _ui_handlers[handlerNum]
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return
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# Class to allow filtering of events and specific filtering of LogRecords *before* we put them over the IPC
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class UIEventFilter(object):
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def __init__(self, level, debug_domains):
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self.update(None, level, debug_domains)
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def update(self, eventmask, level, debug_domains):
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self.eventmask = eventmask
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self.stdlevel = level
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self.debug_domains = debug_domains
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def filter(self, event):
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if isinstance(event, logging.LogRecord):
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if event.levelno >= self.stdlevel:
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return True
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if event.name in self.debug_domains and event.levelno >= self.debug_domains[event.name]:
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return True
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return False
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eid = str(event.__class__)[8:-2]
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if self.eventmask and eid not in self.eventmask:
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return False
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return True
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def set_UIHmask(handlerNum, level, debug_domains, mask):
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if not handlerNum in _ui_handlers:
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return False
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if '*' in mask:
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_ui_logfilters[handlerNum].update(None, level, debug_domains)
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else:
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_ui_logfilters[handlerNum].update(mask, level, debug_domains)
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return True
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def getName(e):
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"""Returns the name of a class or class instance"""
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if getattr(e, "__name__", None) == None:
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return e.__class__.__name__
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else:
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return e.__name__
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class OperationStarted(Event):
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"""An operation has begun"""
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def __init__(self, msg = "Operation Started"):
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Event.__init__(self)
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self.msg = msg
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class OperationCompleted(Event):
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"""An operation has completed"""
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def __init__(self, total, msg = "Operation Completed"):
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Event.__init__(self)
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self.total = total
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self.msg = msg
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class OperationProgress(Event):
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"""An operation is in progress"""
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def __init__(self, current, total, msg = "Operation in Progress"):
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Event.__init__(self)
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self.current = current
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self.total = total
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self.msg = msg + ": %s/%s" % (current, total);
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class ConfigParsed(Event):
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"""Configuration Parsing Complete"""
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class RecipeEvent(Event):
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def __init__(self, fn):
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self.fn = fn
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Event.__init__(self)
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class RecipePreFinalise(RecipeEvent):
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""" Recipe Parsing Complete but not yet finialised"""
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class RecipeParsed(RecipeEvent):
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""" Recipe Parsing Complete """
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class StampUpdate(Event):
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"""Trigger for any adjustment of the stamp files to happen"""
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def __init__(self, targets, stampfns):
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self._targets = targets
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self._stampfns = stampfns
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Event.__init__(self)
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def getStampPrefix(self):
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return self._stampfns
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def getTargets(self):
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return self._targets
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stampPrefix = property(getStampPrefix)
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targets = property(getTargets)
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class BuildBase(Event):
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"""Base class for bbmake run events"""
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def __init__(self, n, p, failures = 0):
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self._name = n
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self._pkgs = p
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Event.__init__(self)
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self._failures = failures
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def getPkgs(self):
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return self._pkgs
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def setPkgs(self, pkgs):
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self._pkgs = pkgs
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def getName(self):
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return self._name
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def setName(self, name):
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self._name = name
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def getCfg(self):
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return self.data
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def setCfg(self, cfg):
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self.data = cfg
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def getFailures(self):
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"""
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Return the number of failed packages
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"""
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return self._failures
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pkgs = property(getPkgs, setPkgs, None, "pkgs property")
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name = property(getName, setName, None, "name property")
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cfg = property(getCfg, setCfg, None, "cfg property")
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class BuildStarted(BuildBase, OperationStarted):
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"""bbmake build run started"""
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def __init__(self, n, p, failures = 0):
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OperationStarted.__init__(self, "Building Started")
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BuildBase.__init__(self, n, p, failures)
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class BuildCompleted(BuildBase, OperationCompleted):
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"""bbmake build run completed"""
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def __init__(self, total, n, p, failures = 0):
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if not failures:
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OperationCompleted.__init__(self, total, "Building Succeeded")
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else:
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OperationCompleted.__init__(self, total, "Building Failed")
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BuildBase.__init__(self, n, p, failures)
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class DiskFull(Event):
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"""Disk full case build aborted"""
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def __init__(self, dev, type, freespace, mountpoint):
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Event.__init__(self)
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self._dev = dev
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self._type = type
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self._free = freespace
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self._mountpoint = mountpoint
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class NoProvider(Event):
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"""No Provider for an Event"""
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def __init__(self, item, runtime=False, dependees=None, reasons=[], close_matches=[]):
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Event.__init__(self)
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self._item = item
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self._runtime = runtime
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self._dependees = dependees
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self._reasons = reasons
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self._close_matches = close_matches
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def getItem(self):
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return self._item
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def isRuntime(self):
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return self._runtime
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class MultipleProviders(Event):
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"""Multiple Providers"""
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def __init__(self, item, candidates, runtime = False):
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Event.__init__(self)
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self._item = item
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self._candidates = candidates
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self._is_runtime = runtime
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def isRuntime(self):
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"""
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Is this a runtime issue?
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"""
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return self._is_runtime
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def getItem(self):
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"""
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The name for the to be build item
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"""
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return self._item
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def getCandidates(self):
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"""
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Get the possible Candidates for a PROVIDER.
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"""
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return self._candidates
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class ParseStarted(OperationStarted):
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"""Recipe parsing for the runqueue has begun"""
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def __init__(self, total):
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OperationStarted.__init__(self, "Recipe parsing Started")
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self.total = total
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class ParseCompleted(OperationCompleted):
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"""Recipe parsing for the runqueue has completed"""
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def __init__(self, cached, parsed, skipped, masked, virtuals, errors, total):
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OperationCompleted.__init__(self, total, "Recipe parsing Completed")
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self.cached = cached
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self.parsed = parsed
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self.skipped = skipped
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self.virtuals = virtuals
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self.masked = masked
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self.errors = errors
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self.sofar = cached + parsed
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class ParseProgress(OperationProgress):
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"""Recipe parsing progress"""
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def __init__(self, current, total):
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OperationProgress.__init__(self, current, total, "Recipe parsing")
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class CacheLoadStarted(OperationStarted):
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"""Loading of the dependency cache has begun"""
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def __init__(self, total):
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OperationStarted.__init__(self, "Loading cache Started")
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self.total = total
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class CacheLoadProgress(OperationProgress):
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"""Cache loading progress"""
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def __init__(self, current, total):
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OperationProgress.__init__(self, current, total, "Loading cache")
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class CacheLoadCompleted(OperationCompleted):
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"""Cache loading is complete"""
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def __init__(self, total, num_entries):
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OperationCompleted.__init__(self, total, "Loading cache Completed")
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self.num_entries = num_entries
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class TreeDataPreparationStarted(OperationStarted):
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"""Tree data preparation started"""
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def __init__(self):
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OperationStarted.__init__(self, "Preparing tree data Started")
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class TreeDataPreparationProgress(OperationProgress):
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"""Tree data preparation is in progress"""
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def __init__(self, current, total):
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OperationProgress.__init__(self, current, total, "Preparing tree data")
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class TreeDataPreparationCompleted(OperationCompleted):
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"""Tree data preparation completed"""
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def __init__(self, total):
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OperationCompleted.__init__(self, total, "Preparing tree data Completed")
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class DepTreeGenerated(Event):
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"""
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Event when a dependency tree has been generated
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"""
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def __init__(self, depgraph):
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Event.__init__(self)
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self._depgraph = depgraph
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class TargetsTreeGenerated(Event):
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"""
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Event when a set of buildable targets has been generated
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"""
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def __init__(self, model):
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Event.__init__(self)
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self._model = model
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class FilesMatchingFound(Event):
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"""
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Event when a list of files matching the supplied pattern has
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been generated
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"""
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def __init__(self, pattern, matches):
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Event.__init__(self)
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self._pattern = pattern
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self._matches = matches
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class CoreBaseFilesFound(Event):
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"""
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Event when a list of appropriate config files has been generated
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"""
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def __init__(self, paths):
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Event.__init__(self)
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self._paths = paths
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class ConfigFilesFound(Event):
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"""
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Event when a list of appropriate config files has been generated
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"""
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def __init__(self, variable, values):
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Event.__init__(self)
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self._variable = variable
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self._values = values
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class ConfigFilePathFound(Event):
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"""
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Event when a path for a config file has been found
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"""
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def __init__(self, path):
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Event.__init__(self)
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self._path = path
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class MsgBase(Event):
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"""Base class for messages"""
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def __init__(self, msg):
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self._message = msg
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Event.__init__(self)
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class MsgDebug(MsgBase):
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"""Debug Message"""
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class MsgNote(MsgBase):
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"""Note Message"""
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class MsgWarn(MsgBase):
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"""Warning Message"""
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class MsgError(MsgBase):
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"""Error Message"""
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class MsgFatal(MsgBase):
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"""Fatal Message"""
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class MsgPlain(MsgBase):
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"""General output"""
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class LogExecTTY(Event):
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"""Send event containing program to spawn on tty of the logger"""
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def __init__(self, msg, prog, sleep_delay, retries):
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Event.__init__(self)
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self.msg = msg
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self.prog = prog
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self.sleep_delay = sleep_delay
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self.retries = retries
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class LogHandler(logging.Handler):
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"""Dispatch logging messages as bitbake events"""
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def emit(self, record):
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|
if record.exc_info:
|
|
etype, value, tb = record.exc_info
|
|
if hasattr(tb, 'tb_next'):
|
|
tb = list(bb.exceptions.extract_traceback(tb, context=3))
|
|
record.bb_exc_info = (etype, value, tb)
|
|
record.exc_info = None
|
|
fire(record, None)
|
|
|
|
def filter(self, record):
|
|
record.taskpid = worker_pid
|
|
return True
|
|
|
|
class RequestPackageInfo(Event):
|
|
"""
|
|
Event to request package information
|
|
"""
|
|
|
|
class PackageInfo(Event):
|
|
"""
|
|
Package information for GUI
|
|
"""
|
|
def __init__(self, pkginfolist):
|
|
Event.__init__(self)
|
|
self._pkginfolist = pkginfolist
|
|
|
|
class MetadataEvent(Event):
|
|
"""
|
|
Generic event that target for OE-Core classes
|
|
to report information during asynchrous execution
|
|
"""
|
|
def __init__(self, eventtype, eventdata):
|
|
Event.__init__(self)
|
|
self.type = eventtype
|
|
self._localdata = eventdata
|
|
|
|
class SanityCheck(Event):
|
|
"""
|
|
Event to run sanity checks, either raise errors or generate events as return status.
|
|
"""
|
|
def __init__(self, generateevents = True):
|
|
Event.__init__(self)
|
|
self.generateevents = generateevents
|
|
|
|
class SanityCheckPassed(Event):
|
|
"""
|
|
Event to indicate sanity check has passed
|
|
"""
|
|
|
|
class SanityCheckFailed(Event):
|
|
"""
|
|
Event to indicate sanity check has failed
|
|
"""
|
|
def __init__(self, msg, network_error=False):
|
|
Event.__init__(self)
|
|
self._msg = msg
|
|
self._network_error = network_error
|
|
|
|
class NetworkTest(Event):
|
|
"""
|
|
Event to run network connectivity tests, either raise errors or generate events as return status.
|
|
"""
|
|
def __init__(self, generateevents = True):
|
|
Event.__init__(self)
|
|
self.generateevents = generateevents
|
|
|
|
class NetworkTestPassed(Event):
|
|
"""
|
|
Event to indicate network test has passed
|
|
"""
|
|
|
|
class NetworkTestFailed(Event):
|
|
"""
|
|
Event to indicate network test has failed
|
|
"""
|
|
|