forked from brl/citadel
908 lines
29 KiB
Python
908 lines
29 KiB
Python
# ex:ts=4:sw=4:sts=4:et
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# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
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#
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# BitBake 'Build' implementation
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#
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# Core code for function execution and task handling in the
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# BitBake build tools.
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#
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# Copyright (C) 2003, 2004 Chris Larson
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#
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# Based on Gentoo's portage.py.
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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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# Based on functions from the base bb module, Copyright 2003 Holger Schurig
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import os
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import sys
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import logging
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import shlex
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import glob
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import time
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import stat
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import bb
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import bb.msg
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import bb.process
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import bb.progress
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from bb import data, event, utils
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bblogger = logging.getLogger('BitBake')
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logger = logging.getLogger('BitBake.Build')
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NULL = open(os.devnull, 'r+')
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__mtime_cache = {}
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def cached_mtime_noerror(f):
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if f not in __mtime_cache:
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try:
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__mtime_cache[f] = os.stat(f)[stat.ST_MTIME]
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except OSError:
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return 0
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return __mtime_cache[f]
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def reset_cache():
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global __mtime_cache
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__mtime_cache = {}
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# When we execute a Python function, we'd like certain things
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# in all namespaces, hence we add them to __builtins__.
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# If we do not do this and use the exec globals, they will
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# not be available to subfunctions.
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if hasattr(__builtins__, '__setitem__'):
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builtins = __builtins__
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else:
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builtins = __builtins__.__dict__
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builtins['bb'] = bb
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builtins['os'] = os
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class FuncFailed(Exception):
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def __init__(self, name = None, logfile = None):
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self.logfile = logfile
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self.name = name
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if name:
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self.msg = 'Function failed: %s' % name
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else:
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self.msg = "Function failed"
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def __str__(self):
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if self.logfile and os.path.exists(self.logfile):
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msg = ("%s (log file is located at %s)" %
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(self.msg, self.logfile))
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else:
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msg = self.msg
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return msg
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class TaskBase(event.Event):
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"""Base class for task events"""
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def __init__(self, t, logfile, d):
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self._task = t
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self._package = d.getVar("PF")
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self._mc = d.getVar("BB_CURRENT_MC")
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self.taskfile = d.getVar("FILE")
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self.taskname = self._task
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self.logfile = logfile
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self.time = time.time()
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event.Event.__init__(self)
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self._message = "recipe %s: task %s: %s" % (d.getVar("PF"), t, self.getDisplayName())
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def getTask(self):
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return self._task
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def setTask(self, task):
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self._task = task
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def getDisplayName(self):
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return bb.event.getName(self)[4:]
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task = property(getTask, setTask, None, "task property")
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class TaskStarted(TaskBase):
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"""Task execution started"""
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def __init__(self, t, logfile, taskflags, d):
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super(TaskStarted, self).__init__(t, logfile, d)
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self.taskflags = taskflags
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class TaskSucceeded(TaskBase):
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"""Task execution completed"""
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class TaskFailed(TaskBase):
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"""Task execution failed"""
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def __init__(self, task, logfile, metadata, errprinted = False):
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self.errprinted = errprinted
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super(TaskFailed, self).__init__(task, logfile, metadata)
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class TaskFailedSilent(TaskBase):
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"""Task execution failed (silently)"""
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def getDisplayName(self):
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# Don't need to tell the user it was silent
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return "Failed"
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class TaskInvalid(TaskBase):
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def __init__(self, task, metadata):
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super(TaskInvalid, self).__init__(task, None, metadata)
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self._message = "No such task '%s'" % task
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class TaskProgress(event.Event):
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"""
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Task made some progress that could be reported to the user, usually in
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the form of a progress bar or similar.
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NOTE: this class does not inherit from TaskBase since it doesn't need
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to - it's fired within the task context itself, so we don't have any of
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the context information that you do in the case of the other events.
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The event PID can be used to determine which task it came from.
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The progress value is normally 0-100, but can also be negative
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indicating that progress has been made but we aren't able to determine
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how much.
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The rate is optional, this is simply an extra string to display to the
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user if specified.
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"""
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def __init__(self, progress, rate=None):
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self.progress = progress
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self.rate = rate
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event.Event.__init__(self)
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class LogTee(object):
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def __init__(self, logger, outfile):
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self.outfile = outfile
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self.logger = logger
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self.name = self.outfile.name
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def write(self, string):
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self.logger.plain(string)
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self.outfile.write(string)
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def __enter__(self):
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self.outfile.__enter__()
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return self
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def __exit__(self, *excinfo):
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self.outfile.__exit__(*excinfo)
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def __repr__(self):
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return '<LogTee {0}>'.format(self.name)
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def flush(self):
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self.outfile.flush()
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#
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# pythonexception allows the python exceptions generated to be raised
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# as the real exceptions (not FuncFailed) and without a backtrace at the
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# origin of the failure.
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#
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def exec_func(func, d, dirs = None, pythonexception=False):
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"""Execute a BB 'function'"""
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try:
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oldcwd = os.getcwd()
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except:
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oldcwd = None
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flags = d.getVarFlags(func)
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cleandirs = flags.get('cleandirs') if flags else None
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if cleandirs:
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for cdir in d.expand(cleandirs).split():
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bb.utils.remove(cdir, True)
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bb.utils.mkdirhier(cdir)
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if flags and dirs is None:
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dirs = flags.get('dirs')
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if dirs:
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dirs = d.expand(dirs).split()
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if dirs:
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for adir in dirs:
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bb.utils.mkdirhier(adir)
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adir = dirs[-1]
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else:
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adir = None
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body = d.getVar(func, False)
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if not body:
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if body is None:
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logger.warning("Function %s doesn't exist", func)
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return
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ispython = flags.get('python')
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lockflag = flags.get('lockfiles')
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if lockflag:
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lockfiles = [f for f in d.expand(lockflag).split()]
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else:
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lockfiles = None
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tempdir = d.getVar('T')
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# or func allows items to be executed outside of the normal
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# task set, such as buildhistory
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task = d.getVar('BB_RUNTASK') or func
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if task == func:
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taskfunc = task
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else:
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taskfunc = "%s.%s" % (task, func)
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runfmt = d.getVar('BB_RUNFMT') or "run.{func}.{pid}"
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runfn = runfmt.format(taskfunc=taskfunc, task=task, func=func, pid=os.getpid())
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runfile = os.path.join(tempdir, runfn)
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bb.utils.mkdirhier(os.path.dirname(runfile))
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# Setup the courtesy link to the runfn, only for tasks
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# we create the link 'just' before the run script is created
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# if we create it after, and if the run script fails, then the
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# link won't be created as an exception would be fired.
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if task == func:
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runlink = os.path.join(tempdir, 'run.{0}'.format(task))
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if runlink:
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bb.utils.remove(runlink)
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try:
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os.symlink(runfn, runlink)
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except OSError:
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pass
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with bb.utils.fileslocked(lockfiles):
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if ispython:
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exec_func_python(func, d, runfile, cwd=adir, pythonexception=pythonexception)
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else:
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exec_func_shell(func, d, runfile, cwd=adir)
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try:
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curcwd = os.getcwd()
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except:
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curcwd = None
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if oldcwd and curcwd != oldcwd:
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try:
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bb.warn("Task %s changed cwd to %s" % (func, curcwd))
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os.chdir(oldcwd)
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except:
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pass
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_functionfmt = """
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{function}(d)
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"""
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logformatter = bb.msg.BBLogFormatter("%(levelname)s: %(message)s")
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def exec_func_python(func, d, runfile, cwd=None, pythonexception=False):
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"""Execute a python BB 'function'"""
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code = _functionfmt.format(function=func)
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bb.utils.mkdirhier(os.path.dirname(runfile))
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with open(runfile, 'w') as script:
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bb.data.emit_func_python(func, script, d)
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if cwd:
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try:
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olddir = os.getcwd()
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except OSError as e:
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bb.warn("%s: Cannot get cwd: %s" % (func, e))
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olddir = None
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os.chdir(cwd)
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bb.debug(2, "Executing python function %s" % func)
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try:
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text = "def %s(d):\n%s" % (func, d.getVar(func, False))
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fn = d.getVarFlag(func, "filename", False)
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lineno = int(d.getVarFlag(func, "lineno", False))
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bb.methodpool.insert_method(func, text, fn, lineno - 1)
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comp = utils.better_compile(code, func, "exec_python_func() autogenerated")
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utils.better_exec(comp, {"d": d}, code, "exec_python_func() autogenerated", pythonexception=pythonexception)
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except (bb.parse.SkipRecipe, bb.build.FuncFailed):
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raise
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except:
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if pythonexception:
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raise
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raise FuncFailed(func, None)
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finally:
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bb.debug(2, "Python function %s finished" % func)
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if cwd and olddir:
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try:
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os.chdir(olddir)
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except OSError as e:
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bb.warn("%s: Cannot restore cwd %s: %s" % (func, olddir, e))
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def shell_trap_code():
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return '''#!/bin/sh\n
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# Emit a useful diagnostic if something fails:
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bb_exit_handler() {
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ret=$?
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case $ret in
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0) ;;
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*) case $BASH_VERSION in
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"") echo "WARNING: exit code $ret from a shell command.";;
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*) echo "WARNING: ${BASH_SOURCE[0]}:${BASH_LINENO[0]} exit $ret from '$BASH_COMMAND'";;
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esac
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exit $ret
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esac
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}
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trap 'bb_exit_handler' 0
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set -e
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'''
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def exec_func_shell(func, d, runfile, cwd=None):
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"""Execute a shell function from the metadata
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Note on directory behavior. The 'dirs' varflag should contain a list
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of the directories you need created prior to execution. The last
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item in the list is where we will chdir/cd to.
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"""
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# Don't let the emitted shell script override PWD
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d.delVarFlag('PWD', 'export')
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with open(runfile, 'w') as script:
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script.write(shell_trap_code())
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bb.data.emit_func(func, script, d)
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if bb.msg.loggerVerboseLogs:
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script.write("set -x\n")
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if cwd:
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script.write("cd '%s'\n" % cwd)
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script.write("%s\n" % func)
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script.write('''
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# cleanup
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ret=$?
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trap '' 0
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exit $ret
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''')
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os.chmod(runfile, 0o775)
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cmd = runfile
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if d.getVarFlag(func, 'fakeroot', False):
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fakerootcmd = d.getVar('FAKEROOT')
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if fakerootcmd:
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cmd = [fakerootcmd, runfile]
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if bb.msg.loggerDefaultVerbose:
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logfile = LogTee(logger, sys.stdout)
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else:
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logfile = sys.stdout
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progress = d.getVarFlag(func, 'progress')
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if progress:
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if progress == 'percent':
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# Use default regex
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logfile = bb.progress.BasicProgressHandler(d, outfile=logfile)
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elif progress.startswith('percent:'):
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# Use specified regex
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logfile = bb.progress.BasicProgressHandler(d, regex=progress.split(':', 1)[1], outfile=logfile)
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elif progress.startswith('outof:'):
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# Use specified regex
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logfile = bb.progress.OutOfProgressHandler(d, regex=progress.split(':', 1)[1], outfile=logfile)
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else:
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bb.warn('%s: invalid task progress varflag value "%s", ignoring' % (func, progress))
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fifobuffer = bytearray()
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def readfifo(data):
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nonlocal fifobuffer
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fifobuffer.extend(data)
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while fifobuffer:
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message, token, nextmsg = fifobuffer.partition(b"\00")
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if token:
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splitval = message.split(b' ', 1)
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cmd = splitval[0].decode("utf-8")
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if len(splitval) > 1:
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value = splitval[1].decode("utf-8")
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else:
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value = ''
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if cmd == 'bbplain':
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bb.plain(value)
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elif cmd == 'bbnote':
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bb.note(value)
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elif cmd == 'bbwarn':
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bb.warn(value)
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elif cmd == 'bberror':
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bb.error(value)
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elif cmd == 'bbfatal':
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# The caller will call exit themselves, so bb.error() is
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# what we want here rather than bb.fatal()
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bb.error(value)
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elif cmd == 'bbfatal_log':
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bb.error(value, forcelog=True)
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elif cmd == 'bbdebug':
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splitval = value.split(' ', 1)
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level = int(splitval[0])
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value = splitval[1]
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bb.debug(level, value)
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else:
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bb.warn("Unrecognised command '%s' on FIFO" % cmd)
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fifobuffer = nextmsg
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else:
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break
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tempdir = d.getVar('T')
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fifopath = os.path.join(tempdir, 'fifo.%s' % os.getpid())
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if os.path.exists(fifopath):
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os.unlink(fifopath)
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os.mkfifo(fifopath)
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with open(fifopath, 'r+b', buffering=0) as fifo:
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try:
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bb.debug(2, "Executing shell function %s" % func)
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try:
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with open(os.devnull, 'r+') as stdin:
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bb.process.run(cmd, shell=False, stdin=stdin, log=logfile, extrafiles=[(fifo,readfifo)])
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except bb.process.CmdError:
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logfn = d.getVar('BB_LOGFILE')
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raise FuncFailed(func, logfn)
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finally:
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os.unlink(fifopath)
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bb.debug(2, "Shell function %s finished" % func)
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def _task_data(fn, task, d):
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localdata = bb.data.createCopy(d)
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localdata.setVar('BB_FILENAME', fn)
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localdata.setVar('BB_CURRENTTASK', task[3:])
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localdata.setVar('OVERRIDES', 'task-%s:%s' %
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(task[3:].replace('_', '-'), d.getVar('OVERRIDES', False)))
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localdata.finalize()
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bb.data.expandKeys(localdata)
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return localdata
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def _exec_task(fn, task, d, quieterr):
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"""Execute a BB 'task'
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Execution of a task involves a bit more setup than executing a function,
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running it with its own local metadata, and with some useful variables set.
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"""
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if not d.getVarFlag(task, 'task', False):
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event.fire(TaskInvalid(task, d), d)
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logger.error("No such task: %s" % task)
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return 1
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logger.debug(1, "Executing task %s", task)
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localdata = _task_data(fn, task, d)
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tempdir = localdata.getVar('T')
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if not tempdir:
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bb.fatal("T variable not set, unable to build")
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# Change nice level if we're asked to
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nice = localdata.getVar("BB_TASK_NICE_LEVEL")
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if nice:
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curnice = os.nice(0)
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nice = int(nice) - curnice
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newnice = os.nice(nice)
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logger.debug(1, "Renice to %s " % newnice)
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ionice = localdata.getVar("BB_TASK_IONICE_LEVEL")
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if ionice:
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try:
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cls, prio = ionice.split(".", 1)
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bb.utils.ioprio_set(os.getpid(), int(cls), int(prio))
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except:
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bb.warn("Invalid ionice level %s" % ionice)
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bb.utils.mkdirhier(tempdir)
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# Determine the logfile to generate
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logfmt = localdata.getVar('BB_LOGFMT') or 'log.{task}.{pid}'
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logbase = logfmt.format(task=task, pid=os.getpid())
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# Document the order of the tasks...
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logorder = os.path.join(tempdir, 'log.task_order')
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try:
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with open(logorder, 'a') as logorderfile:
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logorderfile.write('{0} ({1}): {2}\n'.format(task, os.getpid(), logbase))
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except OSError:
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logger.exception("Opening log file '%s'", logorder)
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pass
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# Setup the courtesy link to the logfn
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loglink = os.path.join(tempdir, 'log.{0}'.format(task))
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logfn = os.path.join(tempdir, logbase)
|
|
if loglink:
|
|
bb.utils.remove(loglink)
|
|
|
|
try:
|
|
os.symlink(logbase, loglink)
|
|
except OSError:
|
|
pass
|
|
|
|
prefuncs = localdata.getVarFlag(task, 'prefuncs', expand=True)
|
|
postfuncs = localdata.getVarFlag(task, 'postfuncs', expand=True)
|
|
|
|
class ErrorCheckHandler(logging.Handler):
|
|
def __init__(self):
|
|
self.triggered = False
|
|
logging.Handler.__init__(self, logging.ERROR)
|
|
def emit(self, record):
|
|
if getattr(record, 'forcelog', False):
|
|
self.triggered = False
|
|
else:
|
|
self.triggered = True
|
|
|
|
# Handle logfiles
|
|
si = open('/dev/null', 'r')
|
|
try:
|
|
bb.utils.mkdirhier(os.path.dirname(logfn))
|
|
logfile = open(logfn, 'w')
|
|
except OSError:
|
|
logger.exception("Opening log file '%s'", logfn)
|
|
pass
|
|
|
|
# Dup the existing fds so we dont lose them
|
|
osi = [os.dup(sys.stdin.fileno()), sys.stdin.fileno()]
|
|
oso = [os.dup(sys.stdout.fileno()), sys.stdout.fileno()]
|
|
ose = [os.dup(sys.stderr.fileno()), sys.stderr.fileno()]
|
|
|
|
# Replace those fds with our own
|
|
os.dup2(si.fileno(), osi[1])
|
|
os.dup2(logfile.fileno(), oso[1])
|
|
os.dup2(logfile.fileno(), ose[1])
|
|
|
|
# Ensure Python logging goes to the logfile
|
|
handler = logging.StreamHandler(logfile)
|
|
handler.setFormatter(logformatter)
|
|
# Always enable full debug output into task logfiles
|
|
handler.setLevel(logging.DEBUG - 2)
|
|
bblogger.addHandler(handler)
|
|
|
|
errchk = ErrorCheckHandler()
|
|
bblogger.addHandler(errchk)
|
|
|
|
localdata.setVar('BB_LOGFILE', logfn)
|
|
localdata.setVar('BB_RUNTASK', task)
|
|
localdata.setVar('BB_TASK_LOGGER', bblogger)
|
|
|
|
flags = localdata.getVarFlags(task)
|
|
|
|
try:
|
|
try:
|
|
event.fire(TaskStarted(task, logfn, flags, localdata), localdata)
|
|
except (bb.BBHandledException, SystemExit):
|
|
return 1
|
|
except FuncFailed as exc:
|
|
logger.error(str(exc))
|
|
return 1
|
|
|
|
try:
|
|
for func in (prefuncs or '').split():
|
|
exec_func(func, localdata)
|
|
exec_func(task, localdata)
|
|
for func in (postfuncs or '').split():
|
|
exec_func(func, localdata)
|
|
except FuncFailed as exc:
|
|
if quieterr:
|
|
event.fire(TaskFailedSilent(task, logfn, localdata), localdata)
|
|
else:
|
|
errprinted = errchk.triggered
|
|
logger.error(str(exc))
|
|
event.fire(TaskFailed(task, logfn, localdata, errprinted), localdata)
|
|
return 1
|
|
except bb.BBHandledException:
|
|
event.fire(TaskFailed(task, logfn, localdata, True), localdata)
|
|
return 1
|
|
finally:
|
|
sys.stdout.flush()
|
|
sys.stderr.flush()
|
|
|
|
bblogger.removeHandler(handler)
|
|
|
|
# Restore the backup fds
|
|
os.dup2(osi[0], osi[1])
|
|
os.dup2(oso[0], oso[1])
|
|
os.dup2(ose[0], ose[1])
|
|
|
|
# Close the backup fds
|
|
os.close(osi[0])
|
|
os.close(oso[0])
|
|
os.close(ose[0])
|
|
si.close()
|
|
|
|
logfile.close()
|
|
if os.path.exists(logfn) and os.path.getsize(logfn) == 0:
|
|
logger.debug(2, "Zero size logfn %s, removing", logfn)
|
|
bb.utils.remove(logfn)
|
|
bb.utils.remove(loglink)
|
|
event.fire(TaskSucceeded(task, logfn, localdata), localdata)
|
|
|
|
if not localdata.getVarFlag(task, 'nostamp', False) and not localdata.getVarFlag(task, 'selfstamp', False):
|
|
make_stamp(task, localdata)
|
|
|
|
return 0
|
|
|
|
def exec_task(fn, task, d, profile = False):
|
|
try:
|
|
quieterr = False
|
|
if d.getVarFlag(task, "quieterrors", False) is not None:
|
|
quieterr = True
|
|
|
|
if profile:
|
|
profname = "profile-%s.log" % (d.getVar("PN") + "-" + task)
|
|
try:
|
|
import cProfile as profile
|
|
except:
|
|
import profile
|
|
prof = profile.Profile()
|
|
ret = profile.Profile.runcall(prof, _exec_task, fn, task, d, quieterr)
|
|
prof.dump_stats(profname)
|
|
bb.utils.process_profilelog(profname)
|
|
|
|
return ret
|
|
else:
|
|
return _exec_task(fn, task, d, quieterr)
|
|
|
|
except Exception:
|
|
from traceback import format_exc
|
|
if not quieterr:
|
|
logger.error("Build of %s failed" % (task))
|
|
logger.error(format_exc())
|
|
failedevent = TaskFailed(task, None, d, True)
|
|
event.fire(failedevent, d)
|
|
return 1
|
|
|
|
def stamp_internal(taskname, d, file_name, baseonly=False, noextra=False):
|
|
"""
|
|
Internal stamp helper function
|
|
Makes sure the stamp directory exists
|
|
Returns the stamp path+filename
|
|
|
|
In the bitbake core, d can be a CacheData and file_name will be set.
|
|
When called in task context, d will be a data store, file_name will not be set
|
|
"""
|
|
taskflagname = taskname
|
|
if taskname.endswith("_setscene") and taskname != "do_setscene":
|
|
taskflagname = taskname.replace("_setscene", "")
|
|
|
|
if file_name:
|
|
stamp = d.stamp[file_name]
|
|
extrainfo = d.stamp_extrainfo[file_name].get(taskflagname) or ""
|
|
else:
|
|
stamp = d.getVar('STAMP')
|
|
file_name = d.getVar('BB_FILENAME')
|
|
extrainfo = d.getVarFlag(taskflagname, 'stamp-extra-info') or ""
|
|
|
|
if baseonly:
|
|
return stamp
|
|
if noextra:
|
|
extrainfo = ""
|
|
|
|
if not stamp:
|
|
return
|
|
|
|
stamp = bb.parse.siggen.stampfile(stamp, file_name, taskname, extrainfo)
|
|
|
|
stampdir = os.path.dirname(stamp)
|
|
if cached_mtime_noerror(stampdir) == 0:
|
|
bb.utils.mkdirhier(stampdir)
|
|
|
|
return stamp
|
|
|
|
def stamp_cleanmask_internal(taskname, d, file_name):
|
|
"""
|
|
Internal stamp helper function to generate stamp cleaning mask
|
|
Returns the stamp path+filename
|
|
|
|
In the bitbake core, d can be a CacheData and file_name will be set.
|
|
When called in task context, d will be a data store, file_name will not be set
|
|
"""
|
|
taskflagname = taskname
|
|
if taskname.endswith("_setscene") and taskname != "do_setscene":
|
|
taskflagname = taskname.replace("_setscene", "")
|
|
|
|
if file_name:
|
|
stamp = d.stampclean[file_name]
|
|
extrainfo = d.stamp_extrainfo[file_name].get(taskflagname) or ""
|
|
else:
|
|
stamp = d.getVar('STAMPCLEAN')
|
|
file_name = d.getVar('BB_FILENAME')
|
|
extrainfo = d.getVarFlag(taskflagname, 'stamp-extra-info') or ""
|
|
|
|
if not stamp:
|
|
return []
|
|
|
|
cleanmask = bb.parse.siggen.stampcleanmask(stamp, file_name, taskname, extrainfo)
|
|
|
|
return [cleanmask, cleanmask.replace(taskflagname, taskflagname + "_setscene")]
|
|
|
|
def make_stamp(task, d, file_name = None):
|
|
"""
|
|
Creates/updates a stamp for a given task
|
|
(d can be a data dict or dataCache)
|
|
"""
|
|
cleanmask = stamp_cleanmask_internal(task, d, file_name)
|
|
for mask in cleanmask:
|
|
for name in glob.glob(mask):
|
|
# Preserve sigdata files in the stamps directory
|
|
if "sigdata" in name or "sigbasedata" in name:
|
|
continue
|
|
# Preserve taint files in the stamps directory
|
|
if name.endswith('.taint'):
|
|
continue
|
|
os.unlink(name)
|
|
|
|
stamp = stamp_internal(task, d, file_name)
|
|
# Remove the file and recreate to force timestamp
|
|
# change on broken NFS filesystems
|
|
if stamp:
|
|
bb.utils.remove(stamp)
|
|
open(stamp, "w").close()
|
|
|
|
# If we're in task context, write out a signature file for each task
|
|
# as it completes
|
|
if not task.endswith("_setscene") and task != "do_setscene" and not file_name:
|
|
stampbase = stamp_internal(task, d, None, True)
|
|
file_name = d.getVar('BB_FILENAME')
|
|
bb.parse.siggen.dump_sigtask(file_name, task, stampbase, True)
|
|
|
|
def del_stamp(task, d, file_name = None):
|
|
"""
|
|
Removes a stamp for a given task
|
|
(d can be a data dict or dataCache)
|
|
"""
|
|
stamp = stamp_internal(task, d, file_name)
|
|
bb.utils.remove(stamp)
|
|
|
|
def write_taint(task, d, file_name = None):
|
|
"""
|
|
Creates a "taint" file which will force the specified task and its
|
|
dependents to be re-run the next time by influencing the value of its
|
|
taskhash.
|
|
(d can be a data dict or dataCache)
|
|
"""
|
|
import uuid
|
|
if file_name:
|
|
taintfn = d.stamp[file_name] + '.' + task + '.taint'
|
|
else:
|
|
taintfn = d.getVar('STAMP') + '.' + task + '.taint'
|
|
bb.utils.mkdirhier(os.path.dirname(taintfn))
|
|
# The specific content of the taint file is not really important,
|
|
# we just need it to be random, so a random UUID is used
|
|
with open(taintfn, 'w') as taintf:
|
|
taintf.write(str(uuid.uuid4()))
|
|
|
|
def stampfile(taskname, d, file_name = None, noextra=False):
|
|
"""
|
|
Return the stamp for a given task
|
|
(d can be a data dict or dataCache)
|
|
"""
|
|
return stamp_internal(taskname, d, file_name, noextra=noextra)
|
|
|
|
def add_tasks(tasklist, d):
|
|
task_deps = d.getVar('_task_deps', False)
|
|
if not task_deps:
|
|
task_deps = {}
|
|
if not 'tasks' in task_deps:
|
|
task_deps['tasks'] = []
|
|
if not 'parents' in task_deps:
|
|
task_deps['parents'] = {}
|
|
|
|
for task in tasklist:
|
|
task = d.expand(task)
|
|
|
|
d.setVarFlag(task, 'task', 1)
|
|
|
|
if not task in task_deps['tasks']:
|
|
task_deps['tasks'].append(task)
|
|
|
|
flags = d.getVarFlags(task)
|
|
def getTask(name):
|
|
if not name in task_deps:
|
|
task_deps[name] = {}
|
|
if name in flags:
|
|
deptask = d.expand(flags[name])
|
|
task_deps[name][task] = deptask
|
|
getTask('depends')
|
|
getTask('rdepends')
|
|
getTask('deptask')
|
|
getTask('rdeptask')
|
|
getTask('recrdeptask')
|
|
getTask('recideptask')
|
|
getTask('nostamp')
|
|
getTask('fakeroot')
|
|
getTask('noexec')
|
|
getTask('umask')
|
|
task_deps['parents'][task] = []
|
|
if 'deps' in flags:
|
|
for dep in flags['deps']:
|
|
dep = d.expand(dep)
|
|
task_deps['parents'][task].append(dep)
|
|
|
|
# don't assume holding a reference
|
|
d.setVar('_task_deps', task_deps)
|
|
|
|
def addtask(task, before, after, d):
|
|
if task[:3] != "do_":
|
|
task = "do_" + task
|
|
|
|
d.setVarFlag(task, "task", 1)
|
|
bbtasks = d.getVar('__BBTASKS', False) or []
|
|
if task not in bbtasks:
|
|
bbtasks.append(task)
|
|
d.setVar('__BBTASKS', bbtasks)
|
|
|
|
existing = d.getVarFlag(task, "deps", False) or []
|
|
if after is not None:
|
|
# set up deps for function
|
|
for entry in after.split():
|
|
if entry not in existing:
|
|
existing.append(entry)
|
|
d.setVarFlag(task, "deps", existing)
|
|
if before is not None:
|
|
# set up things that depend on this func
|
|
for entry in before.split():
|
|
existing = d.getVarFlag(entry, "deps", False) or []
|
|
if task not in existing:
|
|
d.setVarFlag(entry, "deps", [task] + existing)
|
|
|
|
def deltask(task, d):
|
|
if task[:3] != "do_":
|
|
task = "do_" + task
|
|
|
|
bbtasks = d.getVar('__BBTASKS', False) or []
|
|
if task in bbtasks:
|
|
bbtasks.remove(task)
|
|
d.delVarFlag(task, 'task')
|
|
d.setVar('__BBTASKS', bbtasks)
|
|
|
|
d.delVarFlag(task, 'deps')
|
|
for bbtask in d.getVar('__BBTASKS', False) or []:
|
|
deps = d.getVarFlag(bbtask, 'deps', False) or []
|
|
if task in deps:
|
|
deps.remove(task)
|
|
d.setVarFlag(bbtask, 'deps', deps)
|
|
|
|
def preceedtask(task, with_recrdeptasks, d):
|
|
"""
|
|
Returns a set of tasks in the current recipe which were specified as
|
|
precondition by the task itself ("after") or which listed themselves
|
|
as precondition ("before"). Preceeding tasks specified via the
|
|
"recrdeptask" are included in the result only if requested. Beware
|
|
that this may lead to the task itself being listed.
|
|
"""
|
|
preceed = set()
|
|
preceed.update(d.getVarFlag(task, 'deps') or [])
|
|
if with_recrdeptasks:
|
|
recrdeptask = d.getVarFlag(task, 'recrdeptask')
|
|
if recrdeptask:
|
|
preceed.update(recrdeptask.split())
|
|
return preceed
|
|
|
|
def tasksbetween(task_start, task_end, d):
|
|
"""
|
|
Return the list of tasks between two tasks in the current recipe,
|
|
where task_start is to start at and task_end is the task to end at
|
|
(and task_end has a dependency chain back to task_start).
|
|
"""
|
|
outtasks = []
|
|
tasks = list(filter(lambda k: d.getVarFlag(k, "task"), d.keys()))
|
|
def follow_chain(task, endtask, chain=None):
|
|
if not chain:
|
|
chain = []
|
|
chain.append(task)
|
|
for othertask in tasks:
|
|
if othertask == task:
|
|
continue
|
|
if task == endtask:
|
|
for ctask in chain:
|
|
if ctask not in outtasks:
|
|
outtasks.append(ctask)
|
|
else:
|
|
deps = d.getVarFlag(othertask, 'deps', False)
|
|
if task in deps:
|
|
follow_chain(othertask, endtask, chain)
|
|
chain.pop()
|
|
follow_chain(task_start, task_end)
|
|
return outtasks
|