text: #!/usr/bin/env python
  # ex:ts=4:sw=4:sts=4:et
  # -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
  #
  # Copyright (C) 2003, 2004  Chris Larson
  # Copyright (C) 2003, 2004  Phil Blundell
  # Copyright (C) 2003 - 2005 Michael 'Mickey' Lauer
  # Copyright (C) 2005        Holger Hans Peter Freyther
  # Copyright (C) 2005        ROAD GmbH
  # Copyright (C) 2006 - 2007 Richard Purdie
  #
  # This program is free software; you can redistribute it and/or modify
  # it under the terms of the GNU General Public License version 2 as
  # published by the Free Software Foundation.
  #
  # This program is distributed in the hope that it will be useful,
  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  # GNU General Public License for more details.
  #
  # You should have received a copy of the GNU General Public License along
  # with this program; if not, write to the Free Software Foundation, Inc.,
  # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  
  from __future__ import print_function
  import sys, os, glob, os.path, re, time
  import atexit
  import itertools
  import logging
  import multiprocessing
  import sre_constants
  import threading
  from cStringIO import StringIO
  from contextlib import closing
  from functools import wraps
  from collections import defaultdict
  import bb, bb.exceptions, bb.command
  from bb import utils, data, parse, event, cache, providers, taskdata, runqueue, build
  import Queue
  import signal
  import prserv.serv
  import pyinotify
  
  logger      = logging.getLogger("BitBake")
  collectlog  = logging.getLogger("BitBake.Collection")
  buildlog    = logging.getLogger("BitBake.Build")
  parselog    = logging.getLogger("BitBake.Parsing")
  providerlog = logging.getLogger("BitBake.Provider")
  
  class NoSpecificMatch(bb.BBHandledException):
      """
      Exception raised when no or multiple file matches are found
      """
  
  class NothingToBuild(Exception):
      """
      Exception raised when there is nothing to build
      """
  
  class CollectionError(bb.BBHandledException):
      """
      Exception raised when layer configuration is incorrect
      """
  
  class state:
      initial, parsing, running, shutdown, forceshutdown, stopped, error = range(7)
  
  
  class SkippedPackage:
      def __init__(self, info = None, reason = None):
          self.pn = None
          self.skipreason = None
          self.provides = None
          self.rprovides = None
  
          if info:
              self.pn = info.pn
              self.skipreason = info.skipreason
              self.provides = info.provides
              self.rprovides = info.rprovides
          elif reason:
              self.skipreason = reason
  
  
  class CookerFeatures(object):
      _feature_list = [HOB_EXTRA_CACHES, SEND_DEPENDS_TREE, BASEDATASTORE_TRACKING, SEND_SANITYEVENTS] = range(4)
  
      def __init__(self):
          self._features=set()
  
      def setFeature(self, f):
          # validate we got a request for a feature we support
          if f not in CookerFeatures._feature_list:
              return
          self._features.add(f)
  
      def __contains__(self, f):
          return f in self._features
  
      def __iter__(self):
          return self._features.__iter__()
  
      def next(self):
          return self._features.next()
  
  
  #============================================================================#
  # BBCooker
  #============================================================================#
  class BBCooker:
      """
      Manages one bitbake build run
      """
  
      def __init__(self, configuration, featureSet = []):
          self.recipecache = None
          self.skiplist = {}
          self.featureset = CookerFeatures()
          for f in featureSet:
              self.featureset.setFeature(f)
  
          self.configuration = configuration
  
          self.configwatcher = pyinotify.WatchManager()
          self.configwatcher.bbseen = []
          self.confignotifier = pyinotify.Notifier(self.configwatcher, self.config_notifications)
          self.watchmask = pyinotify.IN_CLOSE_WRITE | pyinotify.IN_CREATE | pyinotify.IN_DELETE | \
                           pyinotify.IN_DELETE_SELF | pyinotify.IN_MODIFY | pyinotify.IN_MOVE_SELF | \
                           pyinotify.IN_MOVED_FROM | pyinotify.IN_MOVED_TO 
          self.watcher = pyinotify.WatchManager()
          self.watcher.bbseen = []
          self.notifier = pyinotify.Notifier(self.watcher, self.notifications)
  
  
          self.initConfigurationData()
  
          self.inotify_modified_files = []
  
          def _process_inotify_updates(server, notifier_list, abort):
              for n in notifier_list:
                  if n.check_events(timeout=0):
                      # read notified events and enqeue them
                      n.read_events()
                      n.process_events()
              return 1.0
  
          self.configuration.server_register_idlecallback(_process_inotify_updates, [self.confignotifier, self.notifier])
  
          self.baseconfig_valid = True
          self.parsecache_valid = False
  
          # Take a lock so only one copy of bitbake can run against a given build
          # directory at a time
          lockfile = self.data.expand("${TOPDIR}/bitbake.lock")
          self.lock = bb.utils.lockfile(lockfile, False, False)
          if not self.lock:
              bb.fatal("Only one copy of bitbake should be run against a build directory")
          try:
              self.lock.seek(0)
              self.lock.truncate()
              if len(configuration.interface) >= 2:
                  self.lock.write("%s:%s\n" % (configuration.interface[0], configuration.interface[1]));
              self.lock.flush()
          except:
              pass
  
          # TOSTOP must not be set or our children will hang when they output
          fd = sys.stdout.fileno()
          if os.isatty(fd):
              import termios
              tcattr = termios.tcgetattr(fd)
              if tcattr[3] & termios.TOSTOP:
                  buildlog.info("The terminal had the TOSTOP bit set, clearing...")
                  tcattr[3] = tcattr[3] & ~termios.TOSTOP
                  termios.tcsetattr(fd, termios.TCSANOW, tcattr)
  
          self.command = bb.command.Command(self)
          self.state = state.initial
  
          self.parser = None
  
          signal.signal(signal.SIGTERM, self.sigterm_exception)
          # Let SIGHUP exit as SIGTERM
          signal.signal(signal.SIGHUP, self.sigterm_exception)
  
      def config_notifications(self, event):
          if not event.path in self.inotify_modified_files:
              self.inotify_modified_files.append(event.path)
          self.baseconfig_valid = False
  
      def notifications(self, event):
          if not event.path in self.inotify_modified_files:
              self.inotify_modified_files.append(event.path)
          self.parsecache_valid = False
  
      def add_filewatch(self, deps, watcher=None):
          if not watcher:
              watcher = self.watcher
          for i in deps:
              f = os.path.dirname(i[0])
              if f in watcher.bbseen:
                  continue
              watcher.bbseen.append(f)
              while True:
                  # We try and add watches for files that don't exist but if they did, would influence
                  # the parser. The parent directory of these files may not exist, in which case we need 
                  # to watch any parent that does exist for changes.
                  try:
                      watcher.add_watch(f, self.watchmask, quiet=False)
                      break
                  except pyinotify.WatchManagerError as e:
                      if 'ENOENT' in str(e):
                          f = os.path.dirname(f)
                          watcher.bbseen.append(f)
                          continue
                      if 'ENOSPC' in str(e):
                          providerlog.error("No space left on device or exceeds fs.inotify.max_user_watches?")
                          providerlog.error("To check max_user_watches: sysctl -n fs.inotify.max_user_watches.")
                          providerlog.error("To modify max_user_watches: sysctl -n -w fs.inotify.max_user_watches=<value>.")
                          providerlog.error("Root privilege is required to modify max_user_watches.")
                      raise
  
      def sigterm_exception(self, signum, stackframe):
          if signum == signal.SIGTERM:
              bb.warn("Cooker recieved SIGTERM, shutting down...")
          elif signum == signal.SIGHUP:
              bb.warn("Cooker recieved SIGHUP, shutting down...")
          self.state = state.forceshutdown
  
      def setFeatures(self, features):
          # we only accept a new feature set if we're in state initial, so we can reset without problems
          if not self.state in [state.initial, state.shutdown, state.forceshutdown, state.stopped, state.error]:
              raise Exception("Illegal state for feature set change")
          original_featureset = list(self.featureset)
          for feature in features:
              self.featureset.setFeature(feature)
          bb.debug(1, "Features set %s (was %s)" % (original_featureset, list(self.featureset)))
          if (original_featureset != list(self.featureset)) and self.state != state.error:
              self.reset()
  
      def initConfigurationData(self):
  
          self.state = state.initial
          self.caches_array = []
  
          if CookerFeatures.BASEDATASTORE_TRACKING in self.featureset:
              self.enableDataTracking()
  
          all_extra_cache_names = []
          # We hardcode all known cache types in a single place, here.
          if CookerFeatures.HOB_EXTRA_CACHES in self.featureset:
              all_extra_cache_names.append("bb.cache_extra:HobRecipeInfo")
  
          caches_name_array = ['bb.cache:CoreRecipeInfo'] + all_extra_cache_names
  
          # At least CoreRecipeInfo will be loaded, so caches_array will never be empty!
          # This is the entry point, no further check needed!
          for var in caches_name_array:
              try:
                  module_name, cache_name = var.split(':')
                  module = __import__(module_name, fromlist=(cache_name,))
                  self.caches_array.append(getattr(module, cache_name))
              except ImportError as exc:
                  logger.critical("Unable to import extra RecipeInfo '%s' from '%s': %s" % (cache_name, module_name, exc))
                  sys.exit("FATAL: Failed to import extra cache class '%s'." % cache_name)
  
          self.databuilder = bb.cookerdata.CookerDataBuilder(self.configuration, False)
          self.databuilder.parseBaseConfiguration()
          self.data = self.databuilder.data
          self.data_hash = self.databuilder.data_hash
  
  
          # we log all events to a file if so directed
          if self.configuration.writeeventlog:
              import json, pickle
              DEFAULT_EVENTFILE = self.configuration.writeeventlog
              class EventLogWriteHandler():
  
                  class EventWriter():
                      def __init__(self, cooker):
                          self.file_inited = None
                          self.cooker = cooker
                          self.event_queue = []
  
                      def init_file(self):
                          try:
                              # delete the old log
                              os.remove(DEFAULT_EVENTFILE)
                          except:
                              pass
  
                          # write current configuration data
                          with open(DEFAULT_EVENTFILE, "w") as f:
                              f.write("%s\n" % json.dumps({ "allvariables" : self.cooker.getAllKeysWithFlags(["doc", "func"])}))
  
                      def write_event(self, event):
                          with open(DEFAULT_EVENTFILE, "a") as f:
                              try:
                                  f.write("%s\n" % json.dumps({"class":event.__module__ + "." + event.__class__.__name__, "vars":json.dumps(pickle.dumps(event)) }))
                              except Exception as e:
                                  import traceback
                                  print(e, traceback.format_exc(e))
  
  
                      def send(self, event):
                          event_class = event.__module__ + "." + event.__class__.__name__
  
                          # init on bb.event.BuildStarted
                          if self.file_inited is None:
                              if  event_class == "bb.event.BuildStarted":
                                  self.init_file()
                                  self.file_inited = True
  
                                  # write pending events
                                  for e in self.event_queue:
                                      self.write_event(e)
  
                                  # also write the current event
                                  self.write_event(event)
  
                              else:
                                  # queue all events until the file is inited
                                  self.event_queue.append(event)
  
                          else:
                              # we have the file, just write the event
                              self.write_event(event)
  
                  # set our handler's event processor
                  event = EventWriter(self)       # self is the cooker here
  
  
              # set up cooker features for this mock UI handler
  
              # we need to write the dependency tree in the log
              self.featureset.setFeature(CookerFeatures.SEND_DEPENDS_TREE)
              # register the log file writer as UI Handler
              bb.event.register_UIHhandler(EventLogWriteHandler())
  
  
          #
          # Copy of the data store which has been expanded.
          # Used for firing events and accessing variables where expansion needs to be accounted for
          #
          self.expanded_data = bb.data.createCopy(self.data)
          bb.data.update_data(self.expanded_data)
          bb.parse.init_parser(self.expanded_data)
  
          if CookerFeatures.BASEDATASTORE_TRACKING in self.featureset:
              self.disableDataTracking()
  
      def enableDataTracking(self):
          self.configuration.tracking = True
          if hasattr(self, "data"):
              self.data.enableTracking()
  
      def disableDataTracking(self):
          self.configuration.tracking = False
          if hasattr(self, "data"):
              self.data.disableTracking()
  
      def modifyConfigurationVar(self, var, val, default_file, op):
          if op == "append":
              self.appendConfigurationVar(var, val, default_file)
          elif op == "set":
              self.saveConfigurationVar(var, val, default_file, "=")
          elif op == "earlyAssign":
              self.saveConfigurationVar(var, val, default_file, "?=")
  
  
      def appendConfigurationVar(self, var, val, default_file):
          #add append var operation to the end of default_file
          default_file = bb.cookerdata.findConfigFile(default_file, self.data)
  
          total = "#added by hob"
          total += "\n%s += \"%s\"\n" % (var, val)
  
          with open(default_file, 'a') as f:
              f.write(total)
  
          #add to history
          loginfo = {"op":"append", "file":default_file, "line":total.count("\n")}
          self.data.appendVar(var, val, **loginfo)
  
      def saveConfigurationVar(self, var, val, default_file, op):
  
          replaced = False
          #do not save if nothing changed
          if str(val) == self.data.getVar(var):
              return
  
          conf_files = self.data.varhistory.get_variable_files(var)
  
          #format the value when it is a list
          if isinstance(val, list):
              listval = ""
              for value in val:
                  listval += "%s   " % value
              val = listval
  
          topdir = self.data.getVar("TOPDIR")
  
          #comment or replace operations made on var
          for conf_file in conf_files:
              if topdir in conf_file:
                  with open(conf_file, 'r') as f:
                      contents = f.readlines()
  
                  lines = self.data.varhistory.get_variable_lines(var, conf_file)
                  for line in lines:
                      total = ""
                      i = 0
                      for c in contents:
                          total += c
                          i = i + 1
                          if i==int(line):
                              end_index = len(total)
                      index = total.rfind(var, 0, end_index)
  
                      begin_line = total.count("\n",0,index)
                      end_line = int(line)
  
                      #check if the variable was saved before in the same way
                      #if true it replace the place where the variable was declared
                      #else it comments it
                      if contents[begin_line-1]== "#added by hob\n":
                          contents[begin_line] = "%s %s \"%s\"\n" % (var, op, val)
                          replaced = True
                      else:
                          for ii in range(begin_line, end_line):
                              contents[ii] = "#" + contents[ii]
  
                  with open(conf_file, 'w') as f:
                      f.writelines(contents)
  
          if replaced == False:
              #remove var from history
              self.data.varhistory.del_var_history(var)
  
              #add var to the end of default_file
              default_file = bb.cookerdata.findConfigFile(default_file, self.data)
  
              #add the variable on a single line, to be easy to replace the second time
              total = "\n#added by hob"
              total += "\n%s %s \"%s\"\n" % (var, op, val)
  
              with open(default_file, 'a') as f:
                  f.write(total)
  
              #add to history
              loginfo = {"op":"set", "file":default_file, "line":total.count("\n")}
              self.data.setVar(var, val, **loginfo)
  
      def removeConfigurationVar(self, var):
          conf_files = self.data.varhistory.get_variable_files(var)
          topdir = self.data.getVar("TOPDIR")
  
          for conf_file in conf_files:
              if topdir in conf_file:
                  with open(conf_file, 'r') as f:
                      contents = f.readlines()
  
                  lines = self.data.varhistory.get_variable_lines(var, conf_file)
                  for line in lines:
                      total = ""
                      i = 0
                      for c in contents:
                          total += c
                          i = i + 1
                          if i==int(line):
                              end_index = len(total)
                      index = total.rfind(var, 0, end_index)
  
                      begin_line = total.count("\n",0,index)
  
                      #check if the variable was saved before in the same way
                      if contents[begin_line-1]== "#added by hob\n":
                          contents[begin_line-1] = contents[begin_line] = "\n"
                      else:
                          contents[begin_line] = "\n"
                      #remove var from history
                      self.data.varhistory.del_var_history(var, conf_file, line)
                      #remove variable
                      self.data.delVar(var)
  
                  with open(conf_file, 'w') as f:
                      f.writelines(contents)
  
      def createConfigFile(self, name):
          path = os.getcwd()
          confpath = os.path.join(path, "conf", name)
          open(confpath, 'w').close()
  
      def parseConfiguration(self):
          # Set log file verbosity
          verboselogs = bb.utils.to_boolean(self.data.getVar("BB_VERBOSE_LOGS", "0"))
          if verboselogs:
              bb.msg.loggerVerboseLogs = True
  
          # Change nice level if we're asked to
          nice = self.data.getVar("BB_NICE_LEVEL", True)
          if nice:
              curnice = os.nice(0)
              nice = int(nice) - curnice
              buildlog.verbose("Renice to %s " % os.nice(nice))
  
          if self.recipecache:
              del self.recipecache
          self.recipecache = bb.cache.CacheData(self.caches_array)
  
          self.handleCollections( self.data.getVar("BBFILE_COLLECTIONS", True) )
  
      def updateConfigOpts(self, options, environment):
          for o in options:
              setattr(self.configuration, o, options[o])
          clean = True
          for k in bb.utils.approved_variables():
              if k in environment and k not in self.configuration.env:
                  logger.debug(1, "Updating environment variable %s to %s" % (k, environment[k]))
                  self.configuration.env[k] = environment[k]
                  clean = False
              if k in self.configuration.env and k not in environment:
                  logger.debug(1, "Updating environment variable %s (deleted)" % (k))
                  del self.configuration.env[k]
                  clean = False
              if k not in self.configuration.env and k not in environment:
                   continue
              if environment[k] != self.configuration.env[k]:
                  logger.debug(1, "Updating environment variable %s to %s" % (k, environment[k]))
                  self.configuration.env[k] = environment[k]
                  clean = False
          if not clean:
              logger.debug(1, "Base environment change, triggering reparse")
              self.baseconfig_valid = False        
              self.reset()
  
      def runCommands(self, server, data, abort):
          """
          Run any queued asynchronous command
          This is done by the idle handler so it runs in true context rather than
          tied to any UI.
          """
  
          return self.command.runAsyncCommand()
  
      def showVersions(self):
  
          pkg_pn = self.recipecache.pkg_pn
          (latest_versions, preferred_versions) = bb.providers.findProviders(self.data, self.recipecache, pkg_pn)
  
          logger.plain("%-35s %25s %25s", "Recipe Name", "Latest Version", "Preferred Version")
          logger.plain("%-35s %25s %25s\n", "===========", "==============", "=================")
  
          for p in sorted(pkg_pn):
              pref = preferred_versions[p]
              latest = latest_versions[p]
  
              prefstr = pref[0][0] + ":" + pref[0][1] + '-' + pref[0][2]
              lateststr = latest[0][0] + ":" + latest[0][1] + "-" + latest[0][2]
  
              if pref == latest:
                  prefstr = ""
  
              logger.plain("%-35s %25s %25s", p, lateststr, prefstr)
  
      def showEnvironment(self, buildfile = None, pkgs_to_build = []):
          """
          Show the outer or per-recipe environment
          """
          fn = None
          envdata = None
  
          if buildfile:
              # Parse the configuration here. We need to do it explicitly here since
              # this showEnvironment() code path doesn't use the cache
              self.parseConfiguration()
  
              fn, cls = bb.cache.Cache.virtualfn2realfn(buildfile)
              fn = self.matchFile(fn)
              fn = bb.cache.Cache.realfn2virtual(fn, cls)
          elif len(pkgs_to_build) == 1:
              ignore = self.expanded_data.getVar("ASSUME_PROVIDED", True) or ""
              if pkgs_to_build[0] in set(ignore.split()):
                  bb.fatal("%s is in ASSUME_PROVIDED" % pkgs_to_build[0])
  
              taskdata, runlist, pkgs_to_build = self.buildTaskData(pkgs_to_build, None, self.configuration.abort)
  
              targetid = taskdata.getbuild_id(pkgs_to_build[0])
              fnid = taskdata.build_targets[targetid][0]
              fn = taskdata.fn_index[fnid]
          else:
              envdata = self.data
  
          if fn:
              try:
                  envdata = bb.cache.Cache.loadDataFull(fn, self.collection.get_file_appends(fn), self.data)
              except Exception as e:
                  parselog.exception("Unable to read %s", fn)
                  raise
  
          # Display history
          with closing(StringIO()) as env:
              self.data.inchistory.emit(env)
              logger.plain(env.getvalue())
  
          # emit variables and shell functions
          data.update_data(envdata)
          with closing(StringIO()) as env:
              data.emit_env(env, envdata, True)
              logger.plain(env.getvalue())
  
          # emit the metadata which isnt valid shell
          data.expandKeys(envdata)
          for e in envdata.keys():
              if data.getVarFlag( e, 'python', envdata ):
                  logger.plain("\npython %s () {\n%s}\n", e, data.getVar(e, envdata, 1))
  
  
      def buildTaskData(self, pkgs_to_build, task, abort):
          """
          Prepare a runqueue and taskdata object for iteration over pkgs_to_build
          """
          bb.event.fire(bb.event.TreeDataPreparationStarted(), self.data)
  
          # A task of None means use the default task
          if task is None:
              task = self.configuration.cmd
  
          fulltargetlist = self.checkPackages(pkgs_to_build)
  
          localdata = data.createCopy(self.data)
          bb.data.update_data(localdata)
          bb.data.expandKeys(localdata)
          taskdata = bb.taskdata.TaskData(abort, skiplist=self.skiplist)
  
          current = 0
          runlist = []
          for k in fulltargetlist:
              ktask = task
              if ":do_" in k:
                  k2 = k.split(":do_")
                  k = k2[0]
                  ktask = k2[1]
              taskdata.add_provider(localdata, self.recipecache, k)
              current += 1
              runlist.append([k, "do_%s" % ktask])
              bb.event.fire(bb.event.TreeDataPreparationProgress(current, len(fulltargetlist)), self.data)
          taskdata.add_unresolved(localdata, self.recipecache)
          bb.event.fire(bb.event.TreeDataPreparationCompleted(len(fulltargetlist)), self.data)
          return taskdata, runlist, fulltargetlist
  
      def prepareTreeData(self, pkgs_to_build, task):
          """
          Prepare a runqueue and taskdata object for iteration over pkgs_to_build
          """
  
          # We set abort to False here to prevent unbuildable targets raising
          # an exception when we're just generating data
          taskdata, runlist, pkgs_to_build = self.buildTaskData(pkgs_to_build, task, False)
  
          return runlist, taskdata
  
      ######## WARNING : this function requires cache_extra to be enabled ########
  
      def generateTaskDepTreeData(self, pkgs_to_build, task):
          """
          Create a dependency graph of pkgs_to_build including reverse dependency
          information.
          """
          runlist, taskdata = self.prepareTreeData(pkgs_to_build, task)
          rq = bb.runqueue.RunQueue(self, self.data, self.recipecache, taskdata, runlist)
          rq.rqdata.prepare()
          return self.buildDependTree(rq, taskdata)
  
  
      def buildDependTree(self, rq, taskdata):
          seen_fnids = []
          depend_tree = {}
          depend_tree["depends"] = {}
          depend_tree["tdepends"] = {}
          depend_tree["pn"] = {}
          depend_tree["rdepends-pn"] = {}
          depend_tree["packages"] = {}
          depend_tree["rdepends-pkg"] = {}
          depend_tree["rrecs-pkg"] = {}
          depend_tree["layer-priorities"] = self.recipecache.bbfile_config_priorities
  
          for task in xrange(len(rq.rqdata.runq_fnid)):
              taskname = rq.rqdata.runq_task[task]
              fnid = rq.rqdata.runq_fnid[task]
              fn = taskdata.fn_index[fnid]
              pn = self.recipecache.pkg_fn[fn]
              version  = "%s:%s-%s" % self.recipecache.pkg_pepvpr[fn]
              if pn not in depend_tree["pn"]:
                  depend_tree["pn"][pn] = {}
                  depend_tree["pn"][pn]["filename"] = fn
                  depend_tree["pn"][pn]["version"] = version
                  depend_tree["pn"][pn]["inherits"] = self.recipecache.inherits.get(fn, None)
  
                  # if we have extra caches, list all attributes they bring in
                  extra_info = []
                  for cache_class in self.caches_array:
                      if type(cache_class) is type and issubclass(cache_class, bb.cache.RecipeInfoCommon) and hasattr(cache_class, 'cachefields'):
                          cachefields = getattr(cache_class, 'cachefields', [])
                          extra_info = extra_info + cachefields
  
                  # for all attributes stored, add them to the dependency tree
                  for ei in extra_info:
                      depend_tree["pn"][pn][ei] = vars(self.recipecache)[ei][fn]
  
  
              for dep in rq.rqdata.runq_depends[task]:
                  depfn = taskdata.fn_index[rq.rqdata.runq_fnid[dep]]
                  deppn = self.recipecache.pkg_fn[depfn]
                  dotname = "%s.%s" % (pn, rq.rqdata.runq_task[task])
                  if not dotname in depend_tree["tdepends"]:
                      depend_tree["tdepends"][dotname] = []
                  depend_tree["tdepends"][dotname].append("%s.%s" % (deppn, rq.rqdata.runq_task[dep]))
              if fnid not in seen_fnids:
                  seen_fnids.append(fnid)
                  packages = []
  
                  depend_tree["depends"][pn] = []
                  for dep in taskdata.depids[fnid]:
                      depend_tree["depends"][pn].append(taskdata.build_names_index[dep])
  
                  depend_tree["rdepends-pn"][pn] = []
                  for rdep in taskdata.rdepids[fnid]:
                      depend_tree["rdepends-pn"][pn].append(taskdata.run_names_index[rdep])
  
                  rdepends = self.recipecache.rundeps[fn]
                  for package in rdepends:
                      depend_tree["rdepends-pkg"][package] = []
                      for rdepend in rdepends[package]:
                          depend_tree["rdepends-pkg"][package].append(rdepend)
                      packages.append(package)
  
                  rrecs = self.recipecache.runrecs[fn]
                  for package in rrecs:
                      depend_tree["rrecs-pkg"][package] = []
                      for rdepend in rrecs[package]:
                          depend_tree["rrecs-pkg"][package].append(rdepend)
                      if not package in packages:
                          packages.append(package)
  
                  for package in packages:
                      if package not in depend_tree["packages"]:
                          depend_tree["packages"][package] = {}
                          depend_tree["packages"][package]["pn"] = pn
                          depend_tree["packages"][package]["filename"] = fn
                          depend_tree["packages"][package]["version"] = version
  
          return depend_tree
  
      ######## WARNING : this function requires cache_extra to be enabled ########
      def generatePkgDepTreeData(self, pkgs_to_build, task):
          """
          Create a dependency tree of pkgs_to_build, returning the data.
          """
          _, taskdata = self.prepareTreeData(pkgs_to_build, task)
          tasks_fnid = []
          if len(taskdata.tasks_name) != 0:
              for task in xrange(len(taskdata.tasks_name)):
                  tasks_fnid.append(taskdata.tasks_fnid[task])
  
          seen_fnids = []
          depend_tree = {}
          depend_tree["depends"] = {}
          depend_tree["pn"] = {}
          depend_tree["rdepends-pn"] = {}
          depend_tree["rdepends-pkg"] = {}
          depend_tree["rrecs-pkg"] = {}
  
          # if we have extra caches, list all attributes they bring in
          extra_info = []
          for cache_class in self.caches_array:
              if type(cache_class) is type and issubclass(cache_class, bb.cache.RecipeInfoCommon) and hasattr(cache_class, 'cachefields'):
                  cachefields = getattr(cache_class, 'cachefields', [])
                  extra_info = extra_info + cachefields
  
          for task in xrange(len(tasks_fnid)):
              fnid = tasks_fnid[task]
              fn = taskdata.fn_index[fnid]
              pn = self.recipecache.pkg_fn[fn]
  
              if pn not in depend_tree["pn"]:
                  depend_tree["pn"][pn] = {}
                  depend_tree["pn"][pn]["filename"] = fn
                  version  = "%s:%s-%s" % self.recipecache.pkg_pepvpr[fn]
                  depend_tree["pn"][pn]["version"] = version
                  rdepends = self.recipecache.rundeps[fn]
                  rrecs = self.recipecache.runrecs[fn]
                  depend_tree["pn"][pn]["inherits"] = self.recipecache.inherits.get(fn, None)
  
                  # for all extra attributes stored, add them to the dependency tree
                  for ei in extra_info:
                      depend_tree["pn"][pn][ei] = vars(self.recipecache)[ei][fn]
  
              if fnid not in seen_fnids:
                  seen_fnids.append(fnid)
  
                  depend_tree["depends"][pn] = []
                  for dep in taskdata.depids[fnid]:
                      item = taskdata.build_names_index[dep]
                      pn_provider = ""
                      targetid = taskdata.getbuild_id(item)
                      if targetid in taskdata.build_targets and taskdata.build_targets[targetid]:
                          id = taskdata.build_targets[targetid][0]
                          fn_provider = taskdata.fn_index[id]
                          pn_provider = self.recipecache.pkg_fn[fn_provider]
                      else:
                          pn_provider = item
                      depend_tree["depends"][pn].append(pn_provider)
  
                  depend_tree["rdepends-pn"][pn] = []
                  for rdep in taskdata.rdepids[fnid]:
                      item = taskdata.run_names_index[rdep]
                      pn_rprovider = ""
                      targetid = taskdata.getrun_id(item)
                      if targetid in taskdata.run_targets and taskdata.run_targets[targetid]:
                          id = taskdata.run_targets[targetid][0]
                          fn_rprovider = taskdata.fn_index[id]
                          pn_rprovider = self.recipecache.pkg_fn[fn_rprovider]
                      else:
                          pn_rprovider = item
                      depend_tree["rdepends-pn"][pn].append(pn_rprovider)
  
                  depend_tree["rdepends-pkg"].update(rdepends)
                  depend_tree["rrecs-pkg"].update(rrecs)
  
          return depend_tree
  
      def generateDepTreeEvent(self, pkgs_to_build, task):
          """
          Create a task dependency graph of pkgs_to_build.
          Generate an event with the result
          """
          depgraph = self.generateTaskDepTreeData(pkgs_to_build, task)
          bb.event.fire(bb.event.DepTreeGenerated(depgraph), self.data)
  
      def generateDotGraphFiles(self, pkgs_to_build, task):
          """
          Create a task dependency graph of pkgs_to_build.
          Save the result to a set of .dot files.
          """
  
          depgraph = self.generateTaskDepTreeData(pkgs_to_build, task)
  
          # Prints a flattened form of package-depends below where subpackages of a package are merged into the main pn
          depends_file = file('pn-depends.dot', 'w' )
          buildlist_file = file('pn-buildlist', 'w' )
          print("digraph depends {", file=depends_file)
          for pn in depgraph["pn"]:
              fn = depgraph["pn"][pn]["filename"]
              version = depgraph["pn"][pn]["version"]
              print('"%s" [label="%s %s\\n%s"]' % (pn, pn, version, fn), file=depends_file)
              print("%s" % pn, file=buildlist_file)
          buildlist_file.close()
          logger.info("PN build list saved to 'pn-buildlist'")
          for pn in depgraph["depends"]:
              for depend in depgraph["depends"][pn]:
                  print('"%s" -> "%s"' % (pn, depend), file=depends_file)
          for pn in depgraph["rdepends-pn"]:
              for rdepend in depgraph["rdepends-pn"][pn]:
                  print('"%s" -> "%s" [style=dashed]' % (pn, rdepend), file=depends_file)
          print("}", file=depends_file)
          logger.info("PN dependencies saved to 'pn-depends.dot'")
  
          depends_file = file('package-depends.dot', 'w' )
          print("digraph depends {", file=depends_file)
          for package in depgraph["packages"]:
              pn = depgraph["packages"][package]["pn"]
              fn = depgraph["packages"][package]["filename"]
              version = depgraph["packages"][package]["version"]
              if package == pn:
                  print('"%s" [label="%s %s\\n%s"]' % (pn, pn, version, fn), file=depends_file)
              else:
                  print('"%s" [label="%s(%s) %s\\n%s"]' % (package, package, pn, version, fn), file=depends_file)
              for depend in depgraph["depends"][pn]:
                  print('"%s" -> "%s"' % (package, depend), file=depends_file)
          for package in depgraph["rdepends-pkg"]:
              for rdepend in depgraph["rdepends-pkg"][package]:
                  print('"%s" -> "%s" [style=dashed]' % (package, rdepend), file=depends_file)
          for package in depgraph["rrecs-pkg"]:
              for rdepend in depgraph["rrecs-pkg"][package]:
                  print('"%s" -> "%s" [style=dashed]' % (package, rdepend), file=depends_file)
          print("}", file=depends_file)
          logger.info("Package dependencies saved to 'package-depends.dot'")
  
          tdepends_file = file('task-depends.dot', 'w' )
          print("digraph depends {", file=tdepends_file)
          for task in depgraph["tdepends"]:
              (pn, taskname) = task.rsplit(".", 1)
              fn = depgraph["pn"][pn]["filename"]
              version = depgraph["pn"][pn]["version"]
              print('"%s.%s" [label="%s %s\\n%s\\n%s"]' % (pn, taskname, pn, taskname, version, fn), file=tdepends_file)
              for dep in depgraph["tdepends"][task]:
                  print('"%s" -> "%s"' % (task, dep), file=tdepends_file)
          print("}", file=tdepends_file)
          logger.info("Task dependencies saved to 'task-depends.dot'")
  
      def show_appends_with_no_recipes( self ):
          appends_without_recipes = [self.collection.appendlist[recipe]
                                     for recipe in self.collection.appendlist
                                     if recipe not in self.collection.appliedappendlist]
          if appends_without_recipes:
              appendlines = ('  %s' % append
                             for appends in appends_without_recipes
                             for append in appends)
              msg = 'No recipes available for:\n%s' % '\n'.join(appendlines)
              warn_only = data.getVar("BB_DANGLINGAPPENDS_WARNONLY", \
                   self.data, False) or "no"
              if warn_only.lower() in ("1", "yes", "true"):
                  bb.warn(msg)
              else:
                  bb.fatal(msg)
  
      def handlePrefProviders(self):
  
          localdata = data.createCopy(self.data)
          bb.data.update_data(localdata)
          bb.data.expandKeys(localdata)
  
          # Handle PREFERRED_PROVIDERS
          for p in (localdata.getVar('PREFERRED_PROVIDERS', True) or "").split():
              try:
                  (providee, provider) = p.split(':')
              except:
                  providerlog.critical("Malformed option in PREFERRED_PROVIDERS variable: %s" % p)
                  continue
              if providee in self.recipecache.preferred and self.recipecache.preferred[providee] != provider:
                  providerlog.error("conflicting preferences for %s: both %s and %s specified", providee, provider, self.recipecache.preferred[providee])
              self.recipecache.preferred[providee] = provider
  
      def findCoreBaseFiles(self, subdir, configfile):
          corebase = self.data.getVar('COREBASE', True) or ""
          paths = []
          for root, dirs, files in os.walk(corebase + '/' + subdir):
              for d in dirs:
                  configfilepath = os.path.join(root, d, configfile)
                  if os.path.exists(configfilepath):
                      paths.append(os.path.join(root, d))
  
          if paths:
              bb.event.fire(bb.event.CoreBaseFilesFound(paths), self.data)
  
      def findConfigFilePath(self, configfile):
          """
          Find the location on disk of configfile and if it exists and was parsed by BitBake
          emit the ConfigFilePathFound event with the path to the file.
          """
          path = bb.cookerdata.findConfigFile(configfile, self.data)
          if not path:
              return
  
          # Generate a list of parsed configuration files by searching the files
          # listed in the __depends and __base_depends variables with a .conf suffix.
          conffiles = []
          dep_files = self.data.getVar('__base_depends') or []
          dep_files = dep_files + (self.data.getVar('__depends') or [])
  
          for f in dep_files:
              if f[0].endswith(".conf"):
                  conffiles.append(f[0])
  
          _, conf, conffile = path.rpartition("conf/")
          match = os.path.join(conf, conffile)
          # Try and find matches for conf/conffilename.conf as we don't always
          # have the full path to the file.
          for cfg in conffiles:
              if cfg.endswith(match):
                  bb.event.fire(bb.event.ConfigFilePathFound(path),
                                self.data)
                  break
  
      def findFilesMatchingInDir(self, filepattern, directory):
          """
          Searches for files matching the regex 'pattern' which are children of
          'directory' in each BBPATH. i.e. to find all rootfs package classes available
          to BitBake one could call findFilesMatchingInDir(self, 'rootfs_', 'classes')
          or to find all machine configuration files one could call:
          findFilesMatchingInDir(self, 'conf/machines', 'conf')
          """
  
          matches = []
          p = re.compile(re.escape(filepattern))
          bbpaths = self.data.getVar('BBPATH', True).split(':')
          for path in bbpaths:
              dirpath = os.path.join(path, directory)
              if os.path.exists(dirpath):
                  for root, dirs, files in os.walk(dirpath):
                      for f in files:
                          if p.search(f):
                              matches.append(f)
  
          if matches:
              bb.event.fire(bb.event.FilesMatchingFound(filepattern, matches), self.data)
  
      def findConfigFiles(self, varname):
          """
          Find config files which are appropriate values for varname.
          i.e. MACHINE, DISTRO
          """
          possible = []
          var = varname.lower()
  
          data = self.data
          # iterate configs
          bbpaths = data.getVar('BBPATH', True).split(':')
          for path in bbpaths:
              confpath = os.path.join(path, "conf", var)
              if os.path.exists(confpath):
                  for root, dirs, files in os.walk(confpath):
                      # get all child files, these are appropriate values
                      for f in files:
                          val, sep, end = f.rpartition('.')
                          if end == 'conf':
                              possible.append(val)
  
          if possible:
              bb.event.fire(bb.event.ConfigFilesFound(var, possible), self.data)
  
      def findInheritsClass(self, klass):
          """
          Find all recipes which inherit the specified class
          """
          pkg_list = []
  
          for pfn in self.recipecache.pkg_fn:
              inherits = self.recipecache.inherits.get(pfn, None)
              if inherits and inherits.count(klass) > 0:
                  pkg_list.append(self.recipecache.pkg_fn[pfn])
  
          return pkg_list
  
      def generateTargetsTree(self, klass=None, pkgs=[]):
          """
          Generate a dependency tree of buildable targets
          Generate an event with the result
          """
          # if the caller hasn't specified a pkgs list default to universe
          if not len(pkgs):
              pkgs = ['universe']
          # if inherited_class passed ensure all recipes which inherit the
          # specified class are included in pkgs
          if klass:
              extra_pkgs = self.findInheritsClass(klass)
              pkgs = pkgs + extra_pkgs
  
          # generate a dependency tree for all our packages
          tree = self.generatePkgDepTreeData(pkgs, 'build')
          bb.event.fire(bb.event.TargetsTreeGenerated(tree), self.data)
  
      def buildWorldTargetList(self):
          """
           Build package list for "bitbake world"
          """
          parselog.debug(1, "collating packages for \"world\"")
          for f in self.recipecache.possible_world:
              terminal = True
              pn = self.recipecache.pkg_fn[f]
  
              for p in self.recipecache.pn_provides[pn]:
                  if p.startswith('virtual/'):
                      parselog.debug(2, "World build skipping %s due to %s provider starting with virtual/", f, p)
                      terminal = False
                      break
                  for pf in self.recipecache.providers[p]:
                      if self.recipecache.pkg_fn[pf] != pn:
                          parselog.debug(2, "World build skipping %s due to both us and %s providing %s", f, pf, p)
                          terminal = False
                          break
              if terminal:
                  self.recipecache.world_target.add(pn)
  
      def interactiveMode( self ):
          """Drop off into a shell"""
          try:
              from bb import shell
          except ImportError:
              parselog.exception("Interactive mode not available")
              sys.exit(1)
          else:
              shell.start( self )
  
  
      def handleCollections( self, collections ):
          """Handle collections"""
          errors = False
          self.recipecache.bbfile_config_priorities = []
          if collections:
              collection_priorities = {}
              collection_depends = {}
              collection_list = collections.split()
              min_prio = 0
              for c in collection_list:
                  # Get collection priority if defined explicitly
                  priority = self.data.getVar("BBFILE_PRIORITY_%s" % c, True)
                  if priority:
                      try:
                          prio = int(priority)
                      except ValueError:
                          parselog.error("invalid value for BBFILE_PRIORITY_%s: \"%s\"", c, priority)
                          errors = True
                      if min_prio == 0 or prio < min_prio:
                          min_prio = prio
                      collection_priorities[c] = prio
                  else:
                      collection_priorities[c] = None
  
                  # Check dependencies and store information for priority calculation
                  deps = self.data.getVar("LAYERDEPENDS_%s" % c, True)
                  if deps:
                      try:
                          deplist = bb.utils.explode_dep_versions2(deps)
                      except bb.utils.VersionStringException as vse:
                          bb.fatal('Error parsing LAYERDEPENDS_%s: %s' % (c, str(vse)))
                      for dep, oplist in deplist.iteritems():
                          if dep in collection_list:
                              for opstr in oplist:
                                  layerver = self.data.getVar("LAYERVERSION_%s" % dep, True)
                                  (op, depver) = opstr.split()
                                  if layerver:
                                      try:
                                          res = bb.utils.vercmp_string_op(layerver, depver, op)
                                      except bb.utils.VersionStringException as vse:
                                          bb.fatal('Error parsing LAYERDEPENDS_%s: %s' % (c, str(vse)))
                                      if not res:
                                          parselog.error("Layer '%s' depends on version %s of layer '%s', but version %s is currently enabled in your configuration. Check that you are using the correct matching versions/branches of these two layers.", c, opstr, dep, layerver)
                                          errors = True
                                  else:
                                      parselog.error("Layer '%s' depends on version %s of layer '%s', which exists in your configuration but does not specify a version. Check that you are using the correct matching versions/branches of these two layers.", c, opstr, dep)
                                      errors = True
                          else:
                              parselog.error("Layer '%s' depends on layer '%s', but this layer is not enabled in your configuration", c, dep)
                              errors = True
                      collection_depends[c] = deplist.keys()
                  else:
                      collection_depends[c] = []
  
              # Recursively work out collection priorities based on dependencies
              def calc_layer_priority(collection):
                  if not collection_priorities[collection]:
                      max_depprio = min_prio
                      for dep in collection_depends[collection]:
                          calc_layer_priority(dep)
                          depprio = collection_priorities[dep]
                          if depprio > max_depprio:
                              max_depprio = depprio
                      max_depprio += 1
                      parselog.debug(1, "Calculated priority of layer %s as %d", collection, max_depprio)
                      collection_priorities[collection] = max_depprio
  
              # Calculate all layer priorities using calc_layer_priority and store in bbfile_config_priorities
              for c in collection_list:
                  calc_layer_priority(c)
                  regex = self.data.getVar("BBFILE_PATTERN_%s" % c, True)
                  if regex == None:
                      parselog.error("BBFILE_PATTERN_%s not defined" % c)
                      errors = True
                      continue
                  try:
                      cre = re.compile(regex)
                  except re.error:
                      parselog.error("BBFILE_PATTERN_%s \"%s\" is not a valid regular expression", c, regex)
                      errors = True
                      continue
                  self.recipecache.bbfile_config_priorities.append((c, regex, cre, collection_priorities[c]))
          if errors:
              # We've already printed the actual error(s)
              raise CollectionError("Errors during parsing layer configuration")
  
      def buildSetVars(self):
          """
          Setup any variables needed before starting a build
          """
          if not self.data.getVar("BUILDNAME"):
              self.data.setVar("BUILDNAME", time.strftime('%Y%m%d%H%M'))
          self.data.setVar("BUILDSTART", time.strftime('%m/%d/%Y %H:%M:%S', time.gmtime()))
  
      def matchFiles(self, bf):
          """
          Find the .bb files which match the expression in 'buildfile'.
          """
          if bf.startswith("/") or bf.startswith("../"):
              bf = os.path.abspath(bf)
  
          self.collection = CookerCollectFiles(self.recipecache.bbfile_config_priorities)
          filelist, masked = self.collection.collect_bbfiles(self.data, self.expanded_data)
          try:
              os.stat(bf)
              bf = os.path.abspath(bf)
              return [bf]
          except OSError:
              regexp = re.compile(bf)
              matches = []
              for f in filelist:
                  if regexp.search(f) and os.path.isfile(f):
                      matches.append(f)
              return matches
  
      def matchFile(self, buildfile):
          """
          Find the .bb file which matches the expression in 'buildfile'.
          Raise an error if multiple files
          """
          matches = self.matchFiles(buildfile)
          if len(matches) != 1:
              if matches:
                  msg = "Unable to match '%s' to a specific recipe file - %s matches found:" % (buildfile, len(matches))
                  if matches:
                      for f in matches:
                          msg += "\n    %s" % f
                  parselog.error(msg)
              else:
                  parselog.error("Unable to find any recipe file matching '%s'" % buildfile)
              raise NoSpecificMatch
          return matches[0]
  
      def buildFile(self, buildfile, task):
          """
          Build the file matching regexp buildfile
          """
  
          # Too many people use -b because they think it's how you normally
          # specify a target to be built, so show a warning
          bb.warn("Buildfile specified, dependencies will not be handled. If this is not what you want, do not use -b / --buildfile.")
  
          # Parse the configuration here. We need to do it explicitly here since
          # buildFile() doesn't use the cache
          self.parseConfiguration()
  
          # If we are told to do the None task then query the default task
          if (task == None):
              task = self.configuration.cmd
  
          fn, cls = bb.cache.Cache.virtualfn2realfn(buildfile)
          fn = self.matchFile(fn)
  
          self.buildSetVars()
  
          infos = bb.cache.Cache.parse(fn, self.collection.get_file_appends(fn), \
                                       self.data,
                                       self.caches_array)
          infos = dict(infos)
  
          fn = bb.cache.Cache.realfn2virtual(fn, cls)
          try:
              info_array = infos[fn]
          except KeyError:
              bb.fatal("%s does not exist" % fn)
  
          if info_array[0].skipped:
              bb.fatal("%s was skipped: %s" % (fn, info_array[0].skipreason))
  
          self.recipecache.add_from_recipeinfo(fn, info_array)
  
          # Tweak some variables
          item = info_array[0].pn
          self.recipecache.ignored_dependencies = set()
          self.recipecache.bbfile_priority[fn] = 1
  
          # Remove external dependencies
          self.recipecache.task_deps[fn]['depends'] = {}
          self.recipecache.deps[fn] = []
          self.recipecache.rundeps[fn] = []
          self.recipecache.runrecs[fn] = []
  
          # Invalidate task for target if force mode active
          if self.configuration.force:
              logger.verbose("Invalidate task %s, %s", task, fn)
              bb.parse.siggen.invalidate_task('do_%s' % task, self.recipecache, fn)
  
          # Setup taskdata structure
          taskdata = bb.taskdata.TaskData(self.configuration.abort)
          taskdata.add_provider(self.data, self.recipecache, item)
  
          buildname = self.data.getVar("BUILDNAME")
          bb.event.fire(bb.event.BuildStarted(buildname, [item]), self.expanded_data)
  
          # Execute the runqueue
          runlist = [[item, "do_%s" % task]]
  
          rq = bb.runqueue.RunQueue(self, self.data, self.recipecache, taskdata, runlist)
  
          def buildFileIdle(server, rq, abort):
  
              msg = None
              if abort or self.state == state.forceshutdown:
                  rq.finish_runqueue(True)
                  msg = "Forced shutdown"
              elif self.state == state.shutdown:
                  rq.finish_runqueue(False)
                  msg = "Stopped build"
              failures = 0
              try:
                  retval = rq.execute_runqueue()
              except runqueue.TaskFailure as exc:
                  failures += len(exc.args)
                  retval = False
              except SystemExit as exc:
                  self.command.finishAsyncCommand()
                  return False
  
              if not retval:
                  self.command.finishAsyncCommand(msg)
                  bb.event.fire(bb.event.BuildCompleted(len(rq.rqdata.runq_fnid), buildname, item, failures), self.expanded_data)
                  return False
              if retval is True:
                  return True
              return retval
  
          self.configuration.server_register_idlecallback(buildFileIdle, rq)
  
      def buildTargets(self, targets, task):
          """
          Attempt to build the targets specified
          """
  
          def buildTargetsIdle(server, rq, abort):
              msg = None
              if abort or self.state == state.forceshutdown:
                  rq.finish_runqueue(True)
                  msg = "Forced shutdown"
              elif self.state == state.shutdown:
                  rq.finish_runqueue(False)
                  msg = "Stopped build"
              failures = 0
              try:
                  retval = rq.execute_runqueue()
              except runqueue.TaskFailure as exc:
                  failures += len(exc.args)
                  retval = False
              except SystemExit as exc:
                  self.command.finishAsyncCommand()
                  return False
  
              if not retval:
                  self.command.finishAsyncCommand(msg)
                  bb.event.fire(bb.event.BuildCompleted(len(rq.rqdata.runq_fnid), buildname, targets, failures), self.data)
                  return False
              if retval is True:
                  return True
              return retval
  
          build.reset_cache()
          self.buildSetVars()
  
          taskdata, runlist, fulltargetlist = self.buildTaskData(targets, task, self.configuration.abort)
  
          buildname = self.data.getVar("BUILDNAME")
          bb.event.fire(bb.event.BuildStarted(buildname, fulltargetlist), self.data)
  
          rq = bb.runqueue.RunQueue(self, self.data, self.recipecache, taskdata, runlist)
          if 'universe' in targets:
              rq.rqdata.warn_multi_bb = True
  
          self.configuration.server_register_idlecallback(buildTargetsIdle, rq)
  
  
      def getAllKeysWithFlags(self, flaglist):
          dump = {}
          for k in self.data.keys():
              try:
                  v = self.data.getVar(k, True)
                  if not k.startswith("__") and not isinstance(v, bb.data_smart.DataSmart):
                      dump[k] = {
      'v' : v ,
      'history' : self.data.varhistory.variable(k),
                      }
                      for d in flaglist:
                          dump[k][d] = self.data.getVarFlag(k, d)
              except Exception as e:
                  print(e)
          return dump
  
  
      def generateNewImage(self, image, base_image, package_queue, timestamp, description):
          '''
          Create a new image with a "require"/"inherit" base_image statement
          '''
          if timestamp:
              image_name = os.path.splitext(image)[0]
              timestr = time.strftime("-%Y%m%d-%H%M%S")
              dest = image_name + str(timestr) + ".bb"
          else:
              if not image.endswith(".bb"):
                  dest = image + ".bb"
              else:
                  dest = image
  
          basename = False
          if base_image:
              with open(base_image, 'r') as f:
                  require_line = f.readline()
                  p = re.compile("IMAGE_BASENAME *=")
                  for line in f:
                      if p.search(line):
                          basename = True
  
          with open(dest, "w") as imagefile:
              if base_image is None:
                  imagefile.write("inherit core-image\n")
              else:
                  topdir = self.data.getVar("TOPDIR")
                  if topdir in base_image:
                      base_image = require_line.split()[1]
                  imagefile.write("require " + base_image + "\n")
              image_install = "IMAGE_INSTALL = \""
              for package in package_queue:
                  image_install += str(package) + " "
              image_install += "\"\n"
              imagefile.write(image_install)
  
              description_var = "DESCRIPTION = \"" + description + "\"\n"
              imagefile.write(description_var)
  
              if basename:
                  # If this is overwritten in a inherited image, reset it to default
                  image_basename = "IMAGE_BASENAME = \"${PN}\"\n"
                  imagefile.write(image_basename)
  
          self.state = state.initial
          if timestamp:
              return timestr
  
      # This is called for all async commands when self.state != running
      def updateCache(self):
          if self.state == state.running:
              return
  
          if self.state in (state.shutdown, state.forceshutdown, state.error):
              if hasattr(self.parser, 'shutdown'):
                  self.parser.shutdown(clean=False, force = True)
              raise bb.BBHandledException()
  
          if self.state != state.parsing:
  
              # reload files for which we got notifications
              for p in self.inotify_modified_files:
                  bb.parse.update_cache(p)
              self.inotify_modified_files = []
  
              if not self.baseconfig_valid:
                  logger.debug(1, "Reloading base configuration data")
                  self.initConfigurationData()
                  self.baseconfig_valid = True
                  self.parsecache_valid = False
  
          if self.state != state.parsing and not self.parsecache_valid:
              self.parseConfiguration ()
              if CookerFeatures.SEND_SANITYEVENTS in self.featureset:
                  bb.event.fire(bb.event.SanityCheck(False), self.data)
  
              ignore = self.expanded_data.getVar("ASSUME_PROVIDED", True) or ""
              self.recipecache.ignored_dependencies = set(ignore.split())
  
              for dep in self.configuration.extra_assume_provided:
                  self.recipecache.ignored_dependencies.add(dep)
  
              self.collection = CookerCollectFiles(self.recipecache.bbfile_config_priorities)
              (filelist, masked) = self.collection.collect_bbfiles(self.data, self.expanded_data)
  
              self.data.renameVar("__depends", "__base_depends")
              self.add_filewatch(self.data.getVar("__base_depends"), self.configwatcher)
  
              self.parser = CookerParser(self, filelist, masked)
              self.parsecache_valid = True
  
          self.state = state.parsing
  
          if not self.parser.parse_next():
              collectlog.debug(1, "parsing complete")
              if self.parser.error:
                  raise bb.BBHandledException()
              self.show_appends_with_no_recipes()
              self.handlePrefProviders()
              self.recipecache.bbfile_priority = self.collection.collection_priorities(self.recipecache.pkg_fn, self.data)
              self.state = state.running
              return None
  
          return True
  
      def checkPackages(self, pkgs_to_build):
  
          # Return a copy, don't modify the original
          pkgs_to_build = pkgs_to_build[:]
  
          if len(pkgs_to_build) == 0:
              raise NothingToBuild
  
          ignore = (self.expanded_data.getVar("ASSUME_PROVIDED", True) or "").split()
          for pkg in pkgs_to_build:
              if pkg in ignore:
                  parselog.warn("Explicit target \"%s\" is in ASSUME_PROVIDED, ignoring" % pkg)
  
          if 'world' in pkgs_to_build:
              self.buildWorldTargetList()
              pkgs_to_build.remove('world')
              for t in self.recipecache.world_target:
                  pkgs_to_build.append(t)
  
          if 'universe' in pkgs_to_build:
              parselog.warn("The \"universe\" target is only intended for testing and may produce errors.")
              parselog.debug(1, "collating packages for \"universe\"")
              pkgs_to_build.remove('universe')
              for t in self.recipecache.universe_target:
                  pkgs_to_build.append(t)
  
          return pkgs_to_build
  
  
  
  
      def pre_serve(self):
          # Empty the environment. The environment will be populated as
          # necessary from the data store.
          #bb.utils.empty_environment()
          try:
              self.prhost = prserv.serv.auto_start(self.data)
          except prserv.serv.PRServiceConfigError:
              bb.event.fire(CookerExit(), self.expanded_data)
              self.state = state.error
          return
  
      def post_serve(self):
          prserv.serv.auto_shutdown(self.data)
          bb.event.fire(CookerExit(), self.expanded_data)
  
      def shutdown(self, force = False):
          if force:
              self.state = state.forceshutdown
          else:
              self.state = state.shutdown
  
      def finishcommand(self):
          self.state = state.initial
  
      def reset(self):
          self.initConfigurationData()
  
  def server_main(cooker, func, *args):
      cooker.pre_serve()
  
      if cooker.configuration.profile:
          try:
              import cProfile as profile
          except:
              import profile
          prof = profile.Profile()
  
          ret = profile.Profile.runcall(prof, func, *args)
  
          prof.dump_stats("profile.log")
          bb.utils.process_profilelog("profile.log")
          print("Raw profiling information saved to profile.log and processed statistics to profile.log.processed")
  
      else:
          ret = func(*args)
  
      cooker.post_serve()
  
      return ret
  
  class CookerExit(bb.event.Event):
      """
      Notify clients of the Cooker shutdown
      """
  
      def __init__(self):
          bb.event.Event.__init__(self)
  
  
  class CookerCollectFiles(object):
      def __init__(self, priorities):
          self.appendlist = {}
          self.bbappends = []
          self.appliedappendlist = []
          self.bbfile_config_priorities = priorities
  
      def calc_bbfile_priority( self, filename, matched = None ):
          for _, _, regex, pri in self.bbfile_config_priorities:
              if regex.match(filename):
                  if matched != None:
                      if not regex in matched:
                          matched.add(regex)
                  return pri
          return 0
  
      def get_bbfiles(self):
          """Get list of default .bb files by reading out the current directory"""
          path = os.getcwd()
          contents = os.listdir(path)
          bbfiles = []
          for f in contents:
              if f.endswith(".bb"):
                  bbfiles.append(os.path.abspath(os.path.join(path, f)))
          return bbfiles
  
      def find_bbfiles(self, path):
          """Find all the .bb and .bbappend files in a directory"""
          found = []
          for dir, dirs, files in os.walk(path):
              for ignored in ('SCCS', 'CVS', '.svn'):
                  if ignored in dirs:
                      dirs.remove(ignored)
              found += [os.path.join(dir, f) for f in files if (f.endswith(['.bb', '.bbappend']))]
  
          return found
  
      def collect_bbfiles(self, config, eventdata):
          """Collect all available .bb build files"""
          masked = 0
  
          collectlog.debug(1, "collecting .bb files")
  
          files = (config.getVar( "BBFILES", True) or "").split()
          config.setVar("BBFILES", " ".join(files))
  
          # Sort files by priority
          files.sort( key=lambda fileitem: self.calc_bbfile_priority(fileitem) )
  
          if not len(files):
              files = self.get_bbfiles()
  
          if not len(files):
              collectlog.error("no recipe files to build, check your BBPATH and BBFILES?")
              bb.event.fire(CookerExit(), eventdata)
  
          # Can't use set here as order is important
          newfiles = []
          for f in files:
              if os.path.isdir(f):
                  dirfiles = self.find_bbfiles(f)
                  for g in dirfiles:
                      if g not in newfiles:
                          newfiles.append(g)
              else:
                  globbed = glob.glob(f)
                  if not globbed and os.path.exists(f):
                      globbed = [f]
                  for g in globbed:
                      if g not in newfiles:
                          newfiles.append(g)
  
          bbmask = config.getVar('BBMASK', True)
  
          if bbmask:
              try:
                  bbmask_compiled = re.compile(bbmask)
              except sre_constants.error:
                  collectlog.critical("BBMASK is not a valid regular expression, ignoring.")
                  return list(newfiles), 0
  
          bbfiles = []
          bbappend = []
          for f in newfiles:
              if bbmask and bbmask_compiled.search(f):
                  collectlog.debug(1, "skipping masked file %s", f)
                  masked += 1
                  continue
              if f.endswith('.bb'):
                  bbfiles.append(f)
              elif f.endswith('.bbappend'):
                  bbappend.append(f)
              else:
                  collectlog.debug(1, "skipping %s: unknown file extension", f)
  
          # Build a list of .bbappend files for each .bb file
          for f in bbappend:
              base = os.path.basename(f).replace('.bbappend', '.bb')
              self.bbappends.append((base, f))
              if not base in self.appendlist:
                 self.appendlist[base] = []
              if f not in self.appendlist[base]:
                  self.appendlist[base].append(f)
  
          # Find overlayed recipes
          # bbfiles will be in priority order which makes this easy
          bbfile_seen = dict()
          self.overlayed = defaultdict(list)
          for f in reversed(bbfiles):
              base = os.path.basename(f)
              if base not in bbfile_seen:
                  bbfile_seen[base] = f
              else:
                  topfile = bbfile_seen[base]
                  self.overlayed[topfile].append(f)
  
          return (bbfiles, masked)
  
      def get_file_appends(self, fn):
          """
          Returns a list of .bbappend files to apply to fn
          """
          filelist = []
          f = os.path.basename(fn)
          for b in self.bbappends:
              (bbappend, filename) = b
              if (bbappend == f) or ('%' in bbappend and bbappend.startswith(f[:bbappend.index('%')])):
                  self.appliedappendlist.append(bbappend)
                  filelist.append(filename)
          return filelist
  
      def collection_priorities(self, pkgfns, d):
  
          priorities = {}
  
          # Calculate priorities for each file
          matched = set()
          for p in pkgfns:
              realfn, cls = bb.cache.Cache.virtualfn2realfn(p)
              priorities[p] = self.calc_bbfile_priority(realfn, matched)
  
          # Don't show the warning if the BBFILE_PATTERN did match .bbappend files
          unmatched = set()
          for _, _, regex, pri in self.bbfile_config_priorities:
              if not regex in matched:
                  unmatched.add(regex)
  
          def findmatch(regex):
              for b in self.bbappends:
                  (bbfile, append) = b
                  if regex.match(append):
                      return True
              return False
  
          for unmatch in unmatched.copy():
              if findmatch(unmatch):
                  unmatched.remove(unmatch)
  
          for collection, pattern, regex, _ in self.bbfile_config_priorities:
              if regex in unmatched:
                  if d.getVar('BBFILE_PATTERN_IGNORE_EMPTY_%s' % collection, True) != '1':
                      collectlog.warn("No bb files matched BBFILE_PATTERN_%s '%s'" % (collection, pattern))
  
          return priorities
  
  class ParsingFailure(Exception):
      def __init__(self, realexception, recipe):
          self.realexception = realexception
          self.recipe = recipe
          Exception.__init__(self, realexception, recipe)
  
  class Feeder(multiprocessing.Process):
      def __init__(self, jobs, to_parsers, quit):
          self.quit = quit
          self.jobs = jobs
          self.to_parsers = to_parsers
          multiprocessing.Process.__init__(self)
  
      def run(self):
          while True:
              try:
                  quit = self.quit.get_nowait()
              except Queue.Empty:
                  pass
              else:
                  if quit == 'cancel':
                      self.to_parsers.cancel_join_thread()
                  break
  
              try:
                  job = self.jobs.pop()
              except IndexError:
                  break
  
              try:
                  self.to_parsers.put(job, timeout=0.5)
              except Queue.Full:
                  self.jobs.insert(0, job)
                  continue
  
  class Parser(multiprocessing.Process):
      def __init__(self, jobs, results, quit, init, profile):
          self.jobs = jobs
          self.results = results
          self.quit = quit
          self.init = init
          multiprocessing.Process.__init__(self)
          self.context = bb.utils.get_context().copy()
          self.handlers = bb.event.get_class_handlers().copy()
          self.profile = profile
  
      def run(self):
  
          if not self.profile:
              self.realrun()
              return
  
          try:
              import cProfile as profile
          except:
              import profile
          prof = profile.Profile()
          try:
              profile.Profile.runcall(prof, self.realrun)
          finally:
              logfile = "profile-parse-%s.log" % multiprocessing.current_process().name
              prof.dump_stats(logfile)
  
      def realrun(self):
          if self.init:
              self.init()
  
          pending = []
          while True:
              try:
                  self.quit.get_nowait()
              except Queue.Empty:
                  pass
              else:
                  self.results.cancel_join_thread()
                  break
  
              if pending:
                  result = pending.pop()
              else:
                  try:
                      job = self.jobs.get(timeout=0.25)
                  except Queue.Empty:
                      continue
  
                  if job is None:
                      break
                  result = self.parse(*job)
  
              try:
                  self.results.put(result, timeout=0.25)
              except Queue.Full:
                  pending.append(result)
  
      def parse(self, filename, appends, caches_array):
          try:
              # Reset our environment and handlers to the original settings
              bb.utils.set_context(self.context.copy())
              bb.event.set_class_handlers(self.handlers.copy())
              return True, bb.cache.Cache.parse(filename, appends, self.cfg, caches_array)
          except Exception as exc:
              tb = sys.exc_info()[2]
              exc.recipe = filename
              exc.traceback = list(bb.exceptions.extract_traceback(tb, context=3))
              return True, exc
          # Need to turn BaseExceptions into Exceptions here so we gracefully shutdown
          # and for example a worker thread doesn't just exit on its own in response to
          # a SystemExit event for example.
          except BaseException as exc:
              return True, ParsingFailure(exc, filename)
  
  class CookerParser(object):
      def __init__(self, cooker, filelist, masked):
          self.filelist = filelist
          self.cooker = cooker
          self.cfgdata = cooker.data
          self.cfghash = cooker.data_hash
  
          # Accounting statistics
          self.parsed = 0
          self.cached = 0
          self.error = 0
          self.masked = masked
  
          self.skipped = 0
          self.virtuals = 0
          self.total = len(filelist)
  
          self.current = 0
          self.num_processes = int(self.cfgdata.getVar("BB_NUMBER_PARSE_THREADS", True) or
                                   multiprocessing.cpu_count())
          self.process_names = []
  
          self.bb_cache = bb.cache.Cache(self.cfgdata, self.cfghash, cooker.caches_array)
          self.fromcache = []
          self.willparse = []
          for filename in self.filelist:
              appends = self.cooker.collection.get_file_appends(filename)
              if not self.bb_cache.cacheValid(filename, appends):
                  self.willparse.append((filename, appends, cooker.caches_array))
              else:
                  self.fromcache.append((filename, appends))
          self.toparse = self.total - len(self.fromcache)
          self.progress_chunk = max(self.toparse / 100, 1)
  
          self.start()
          self.haveshutdown = False
  
      def start(self):
          self.results = self.load_cached()
          self.processes = []
          if self.toparse:
              bb.event.fire(bb.event.ParseStarted(self.toparse), self.cfgdata)
              def init():
                  Parser.cfg = self.cfgdata
                  multiprocessing.util.Finalize(None, bb.codeparser.parser_cache_save, args=(self.cfgdata,), exitpriority=1)
                  multiprocessing.util.Finalize(None, bb.fetch.fetcher_parse_save, args=(self.cfgdata,), exitpriority=1)
  
              self.feeder_quit = multiprocessing.Queue(maxsize=1)
              self.parser_quit = multiprocessing.Queue(maxsize=self.num_processes)
              self.jobs = multiprocessing.Queue(maxsize=self.num_processes)
              self.result_queue = multiprocessing.Queue()
              self.feeder = Feeder(self.willparse, self.jobs, self.feeder_quit)
              self.feeder.start()
              for i in range(0, self.num_processes):
                  parser = Parser(self.jobs, self.result_queue, self.parser_quit, init, self.cooker.configuration.profile)
                  parser.start()
                  self.process_names.append(parser.name)
                  self.processes.append(parser)
  
              self.results = itertools.chain(self.results, self.parse_generator())
  
      def shutdown(self, clean=True, force=False):
          if not self.toparse:
              return
          if self.haveshutdown:
              return
          self.haveshutdown = True
  
          if clean:
              event = bb.event.ParseCompleted(self.cached, self.parsed,
                                              self.skipped, self.masked,
                                              self.virtuals, self.error,
                                              self.total)
  
              bb.event.fire(event, self.cfgdata)
              self.feeder_quit.put(None)
              for process in self.processes:
                  self.jobs.put(None)
          else:
              self.feeder_quit.put('cancel')
  
              self.parser_quit.cancel_join_thread()
              for process in self.processes:
                  self.parser_quit.put(None)
  
              self.jobs.cancel_join_thread()
  
          for process in self.processes:
              if force:
                  process.join(.1)
                  process.terminate()
              else:
                  process.join()
          self.feeder.join()
  
          sync = threading.Thread(target=self.bb_cache.sync)
          sync.start()
          multiprocessing.util.Finalize(None, sync.join, exitpriority=-100)
          bb.codeparser.parser_cache_savemerge(self.cooker.data)
          bb.fetch.fetcher_parse_done(self.cooker.data)
          if self.cooker.configuration.profile:
              profiles = []
              for i in self.process_names:
                  logfile = "profile-parse-%s.log" % i
                  if os.path.exists(logfile):
                      profiles.append(logfile)
  
              pout = "profile-parse.log.processed"
              bb.utils.process_profilelog(profiles, pout = pout)
              print("Processed parsing statistics saved to %s" % (pout))
  
      def load_cached(self):
          for filename, appends in self.fromcache:
              cached, infos = self.bb_cache.load(filename, appends, self.cfgdata)
              yield not cached, infos
  
      def parse_generator(self):
          while True:
              if self.parsed >= self.toparse:
                  break
  
              try:
                  result = self.result_queue.get(timeout=0.25)
              except Queue.Empty:
                  pass
              else:
                  value = result[1]
                  if isinstance(value, BaseException):
                      raise value
                  else:
                      yield result
  
      def parse_next(self):
          result = []
          parsed = None
          try:
              parsed, result = self.results.next()
          except StopIteration:
              self.shutdown()
              return False
          except bb.BBHandledException as exc:
              self.error += 1
              logger.error('Failed to parse recipe: %s' % exc.recipe)
              self.shutdown(clean=False)
              return False
          except ParsingFailure as exc:
              self.error += 1
              logger.error('Unable to parse %s: %s' %
                       (exc.recipe, bb.exceptions.to_string(exc.realexception)))
              self.shutdown(clean=False)
              return False
          except bb.parse.ParseError as exc:
              self.error += 1
              logger.error(str(exc))
              self.shutdown(clean=False)
              return False
          except bb.data_smart.ExpansionError as exc:
              self.error += 1
              _, value, _ = sys.exc_info()
              logger.error('ExpansionError during parsing %s: %s', value.recipe, str(exc))
              self.shutdown(clean=False)
              return False
          except SyntaxError as exc:
              self.error += 1
              logger.error('Unable to parse %s', exc.recipe)
              self.shutdown(clean=False)
              return False
          except Exception as exc:
              self.error += 1
              etype, value, tb = sys.exc_info()
              if hasattr(value, "recipe"):
                  logger.error('Unable to parse %s', value.recipe,
                              exc_info=(etype, value, exc.traceback))
              else:
                  # Most likely, an exception occurred during raising an exception
                  import traceback
                  logger.error('Exception during parse: %s' % traceback.format_exc())
              self.shutdown(clean=False)
              return False
  
          self.current += 1
          self.virtuals += len(result)
          if parsed:
              self.parsed += 1
              if self.parsed % self.progress_chunk == 0:
                  bb.event.fire(bb.event.ParseProgress(self.parsed, self.toparse),
                                self.cfgdata)
          else:
              self.cached += 1
  
          for virtualfn, info_array in result:
              if info_array[0].skipped:
                  self.skipped += 1
                  self.cooker.skiplist[virtualfn] = SkippedPackage(info_array[0])
              self.bb_cache.add_info(virtualfn, info_array, self.cooker.recipecache,
                                          parsed=parsed, watcher = self.cooker.add_filewatch)
          return True
  
      def reparse(self, filename):
          infos = self.bb_cache.parse(filename,
                                      self.cooker.collection.get_file_appends(filename),
                                      self.cfgdata, self.cooker.caches_array)
          for vfn, info_array in infos:
              self.cooker.recipecache.add_from_recipeinfo(vfn, info_array)
  