Turn the reparseFiles logic into a command to reset the cooker's state machine and a noop which triggers a cache rebuild. The resetCooker command resets the cookers state machine such that a cache update will be triggered by any async command which requires the cache. The reparseFiles command remains as a noop async command that has the needcache property set to True so that when called it ensures the cache is built. Patch from Richard with the addition of removing the force parameter from the updateCache method. CC: Richard Purdie <richard.purdie@linuxfoundation.org> (Bitbake rev: a98f698fe9f38310024013e58475e6d1447ee154) Signed-off-by: Joshua Lock <josh@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
338 lines
10 KiB
Python
338 lines
10 KiB
Python
"""
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BitBake 'Command' module
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Provide an interface to interact with the bitbake server through 'commands'
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"""
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# Copyright (C) 2006-2007 Richard Purdie
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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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"""
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The bitbake server takes 'commands' from its UI/commandline.
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Commands are either synchronous or asynchronous.
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Async commands return data to the client in the form of events.
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Sync commands must only return data through the function return value
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and must not trigger events, directly or indirectly.
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Commands are queued in a CommandQueue
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"""
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import bb.event
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import bb.cooker
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import bb.data
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async_cmds = {}
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sync_cmds = {}
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class CommandCompleted(bb.event.Event):
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pass
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class CommandExit(bb.event.Event):
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def __init__(self, exitcode):
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bb.event.Event.__init__(self)
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self.exitcode = int(exitcode)
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class CommandFailed(CommandExit):
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def __init__(self, message):
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self.error = message
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CommandExit.__init__(self, 1)
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class Command:
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"""
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A queue of asynchronous commands for bitbake
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"""
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def __init__(self, cooker):
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self.cooker = cooker
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self.cmds_sync = CommandsSync()
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self.cmds_async = CommandsAsync()
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# FIXME Add lock for this
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self.currentAsyncCommand = None
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for attr in CommandsSync.__dict__:
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command = attr[:].lower()
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method = getattr(CommandsSync, attr)
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sync_cmds[command] = (method)
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for attr in CommandsAsync.__dict__:
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command = attr[:].lower()
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method = getattr(CommandsAsync, attr)
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async_cmds[command] = (method)
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def runCommand(self, commandline):
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try:
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command = commandline.pop(0)
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if command in CommandsSync.__dict__:
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# Can run synchronous commands straight away
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return getattr(CommandsSync, command)(self.cmds_sync, self, commandline)
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if self.currentAsyncCommand is not None:
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return "Busy (%s in progress)" % self.currentAsyncCommand[0]
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if command not in CommandsAsync.__dict__:
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return "No such command"
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self.currentAsyncCommand = (command, commandline)
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self.cooker.server_registration_cb(self.cooker.runCommands, self.cooker)
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return True
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except:
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import traceback
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return traceback.format_exc()
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def runAsyncCommand(self):
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try:
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if self.currentAsyncCommand is not None:
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(command, options) = self.currentAsyncCommand
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commandmethod = getattr(CommandsAsync, command)
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needcache = getattr( commandmethod, "needcache" )
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if (needcache and self.cooker.state in
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(bb.cooker.state.initial, bb.cooker.state.parsing)):
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self.cooker.updateCache()
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return True
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else:
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commandmethod(self.cmds_async, self, options)
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return False
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else:
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return False
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except KeyboardInterrupt as exc:
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self.finishAsyncCommand("Interrupted")
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return False
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except SystemExit as exc:
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arg = exc.args[0]
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if isinstance(arg, basestring):
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self.finishAsyncCommand(arg)
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else:
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self.finishAsyncCommand("Exited with %s" % arg)
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return False
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except Exception:
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import traceback
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self.finishAsyncCommand(traceback.format_exc())
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return False
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def finishAsyncCommand(self, msg=None, code=None):
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if msg:
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bb.event.fire(CommandFailed(msg), self.cooker.configuration.event_data)
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elif code:
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bb.event.fire(CommandExit(code), self.cooker.configuration.event_data)
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else:
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bb.event.fire(CommandCompleted(), self.cooker.configuration.event_data)
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self.currentAsyncCommand = None
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class CommandsSync:
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"""
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A class of synchronous commands
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These should run quickly so as not to hurt interactive performance.
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These must not influence any running synchronous command.
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"""
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def stateShutdown(self, command, params):
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"""
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Trigger cooker 'shutdown' mode
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"""
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command.cooker.shutdown()
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def stateStop(self, command, params):
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"""
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Stop the cooker
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"""
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command.cooker.stop()
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def getCmdLineAction(self, command, params):
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"""
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Get any command parsed from the commandline
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"""
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return command.cooker.commandlineAction
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def getVariable(self, command, params):
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"""
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Read the value of a variable from configuration.data
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"""
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varname = params[0]
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expand = True
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if len(params) > 1:
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expand = params[1]
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return bb.data.getVar(varname, command.cooker.configuration.data, expand)
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def setVariable(self, command, params):
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"""
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Set the value of variable in configuration.data
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"""
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varname = params[0]
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value = params[1]
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bb.data.setVar(varname, value, command.cooker.configuration.data)
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def resetCooker(self, command, params):
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"""
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Reset the cooker to its initial state, thus forcing a reparse for
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any async command that has the needcache property set to True
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"""
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command.cooker.reset()
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class CommandsAsync:
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"""
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A class of asynchronous commands
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These functions communicate via generated events.
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Any function that requires metadata parsing should be here.
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"""
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def buildFile(self, command, params):
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"""
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Build a single specified .bb file
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"""
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bfile = params[0]
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task = params[1]
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command.cooker.buildFile(bfile, task)
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buildFile.needcache = False
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def buildTargets(self, command, params):
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"""
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Build a set of targets
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"""
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pkgs_to_build = params[0]
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task = params[1]
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command.cooker.buildTargets(pkgs_to_build, task)
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buildTargets.needcache = True
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def generateDepTreeEvent(self, command, params):
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"""
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Generate an event containing the dependency information
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"""
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pkgs_to_build = params[0]
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task = params[1]
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command.cooker.generateDepTreeEvent(pkgs_to_build, task)
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command.finishAsyncCommand()
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generateDepTreeEvent.needcache = True
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def generateDotGraph(self, command, params):
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"""
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Dump dependency information to disk as .dot files
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"""
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pkgs_to_build = params[0]
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task = params[1]
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command.cooker.generateDotGraphFiles(pkgs_to_build, task)
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command.finishAsyncCommand()
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generateDotGraph.needcache = True
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def generateTargetsTree(self, command, params):
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"""
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Generate a tree of buildable targets.
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If klass is provided ensure all recipes that inherit the class are
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included in the package list.
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If pkg_list provided use that list (plus any extras brought in by
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klass) rather than generating a tree for all packages.
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"""
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klass = params[0]
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if len(params) > 1:
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pkg_list = params[1]
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else:
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pkg_list = []
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command.cooker.generateTargetsTree(klass, pkg_list)
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command.finishAsyncCommand()
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generateTargetsTree.needcache = True
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def findConfigFiles(self, command, params):
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"""
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Find config files which provide appropriate values
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for the passed configuration variable. i.e. MACHINE
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"""
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varname = params[0]
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command.cooker.findConfigFiles(varname)
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command.finishAsyncCommand()
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findConfigFiles.needcache = True
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def findFilesMatchingInDir(self, command, params):
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"""
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Find implementation files matching the specified pattern
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in the requested subdirectory of a BBPATH
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"""
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pattern = params[0]
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directory = params[1]
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command.cooker.findFilesMatchingInDir(pattern, directory)
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command.finishAsyncCommand()
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findFilesMatchingInDir.needcache = True
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def findConfigFilePath(self, command, params):
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"""
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Find the path of the requested configuration file
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"""
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configfile = params[0]
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command.cooker.findConfigFilePath(configfile)
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command.finishAsyncCommand()
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findConfigFilePath.needcache = False
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def showVersions(self, command, params):
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"""
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Show the currently selected versions
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"""
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command.cooker.showVersions()
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command.finishAsyncCommand()
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showVersions.needcache = True
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def showEnvironmentTarget(self, command, params):
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"""
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Print the environment of a target recipe
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(needs the cache to work out which recipe to use)
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"""
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pkg = params[0]
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command.cooker.showEnvironment(None, pkg)
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command.finishAsyncCommand()
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showEnvironmentTarget.needcache = True
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def showEnvironment(self, command, params):
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"""
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Print the standard environment
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or if specified the environment for a specified recipe
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"""
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bfile = params[0]
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command.cooker.showEnvironment(bfile)
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command.finishAsyncCommand()
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showEnvironment.needcache = False
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def parseFiles(self, command, params):
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"""
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Parse the .bb files
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"""
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command.cooker.updateCache()
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command.finishAsyncCommand()
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parseFiles.needcache = True
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def reparseFiles(self, command, params):
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"""
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Reparse .bb files
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"""
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command.cooker.reparseFiles()
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command.finishAsyncCommand()
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reparseFiles.needcache = True
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def compareRevisions(self, command, params):
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"""
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Parse the .bb files
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"""
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if bb.fetch.fetcher_compare_revisions(command.cooker.configuration.data):
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command.finishAsyncCommand(code=1)
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else:
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command.finishAsyncCommand()
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compareRevisions.needcache = True
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