2008-09-30 15:08:33 +00:00
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# ex:ts=4:sw=4:sts=4:et
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# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
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#
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# BitBake 'Event' implementation
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#
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# Caching of bitbake variables before task execution
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# Copyright (C) 2006 Richard Purdie
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# but small sections based on code from bin/bitbake:
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# Copyright (C) 2003, 2004 Chris Larson
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# Copyright (C) 2003, 2004 Phil Blundell
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# Copyright (C) 2003 - 2005 Michael 'Mickey' Lauer
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# Copyright (C) 2005 Holger Hans Peter Freyther
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# Copyright (C) 2005 ROAD GmbH
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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import os, re
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import bb.data
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import bb.utils
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try:
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import cPickle as pickle
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except ImportError:
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import pickle
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bb.msg.note(1, bb.msg.domain.Cache, "Importing cPickle failed. Falling back to a very slow implementation.")
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2008-10-01 09:58:26 +00:00
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__cache_version__ = "130"
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2008-09-30 15:08:33 +00:00
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class Cache:
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"""
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BitBake Cache implementation
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"""
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def __init__(self, cooker):
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self.cachedir = bb.data.getVar("CACHE", cooker.configuration.data, True)
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self.clean = {}
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self.checked = {}
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self.depends_cache = {}
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self.data = None
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self.data_fn = None
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self.cacheclean = True
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if self.cachedir in [None, '']:
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self.has_cache = False
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bb.msg.note(1, bb.msg.domain.Cache, "Not using a cache. Set CACHE = <directory> to enable.")
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2009-01-02 23:57:03 +00:00
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return
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2008-09-30 15:08:33 +00:00
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2009-01-02 23:57:03 +00:00
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self.has_cache = True
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self.cachefile = os.path.join(self.cachedir,"bb_cache.dat")
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2009-01-03 16:33:11 +00:00
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2009-01-02 23:57:03 +00:00
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bb.msg.debug(1, bb.msg.domain.Cache, "Using cache in '%s'" % self.cachedir)
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try:
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os.stat( self.cachedir )
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except OSError:
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bb.mkdirhier( self.cachedir )
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2008-09-30 15:08:33 +00:00
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# If any of configuration.data's dependencies are newer than the
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# cache there isn't even any point in loading it...
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newest_mtime = 0
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deps = bb.data.getVar("__depends", cooker.configuration.data, True)
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for f,old_mtime in deps:
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if old_mtime > newest_mtime:
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newest_mtime = old_mtime
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if bb.parse.cached_mtime_noerror(self.cachefile) >= newest_mtime:
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try:
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p = pickle.Unpickler(file(self.cachefile, "rb"))
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self.depends_cache, version_data = p.load()
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if version_data['CACHE_VER'] != __cache_version__:
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raise ValueError, 'Cache Version Mismatch'
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if version_data['BITBAKE_VER'] != bb.__version__:
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raise ValueError, 'Bitbake Version Mismatch'
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except EOFError:
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bb.msg.note(1, bb.msg.domain.Cache, "Truncated cache found, rebuilding...")
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self.depends_cache = {}
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except:
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bb.msg.note(1, bb.msg.domain.Cache, "Invalid cache found, rebuilding...")
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self.depends_cache = {}
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else:
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2008-12-06 13:16:13 +00:00
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try:
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os.stat( self.cachefile )
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bb.msg.note(1, bb.msg.domain.Cache, "Out of date cache found, rebuilding...")
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except OSError:
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pass
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2008-09-30 15:08:33 +00:00
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def getVar(self, var, fn, exp = 0):
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"""
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Gets the value of a variable
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(similar to getVar in the data class)
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There are two scenarios:
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1. We have cached data - serve from depends_cache[fn]
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2. We're learning what data to cache - serve from data
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backend but add a copy of the data to the cache.
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"""
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if fn in self.clean:
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return self.depends_cache[fn][var]
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if not fn in self.depends_cache:
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self.depends_cache[fn] = {}
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if fn != self.data_fn:
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# We're trying to access data in the cache which doesn't exist
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# yet setData hasn't been called to setup the right access. Very bad.
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bb.msg.error(bb.msg.domain.Cache, "Parsing error data_fn %s and fn %s don't match" % (self.data_fn, fn))
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self.cacheclean = False
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result = bb.data.getVar(var, self.data, exp)
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self.depends_cache[fn][var] = result
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return result
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2009-01-03 16:33:11 +00:00
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def setData(self, virtualfn, fn, data):
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2008-09-30 15:08:33 +00:00
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"""
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Called to prime bb_cache ready to learn which variables to cache.
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Will be followed by calls to self.getVar which aren't cached
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but can be fulfilled from self.data.
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"""
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2009-01-03 16:33:11 +00:00
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self.data_fn = virtualfn
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2008-09-30 15:08:33 +00:00
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self.data = data
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# Make sure __depends makes the depends_cache
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2009-01-03 16:33:11 +00:00
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self.getVar("__depends", virtualfn, True)
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self.depends_cache[virtualfn]["CACHETIMESTAMP"] = bb.parse.cached_mtime(fn)
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def virtualfn2realfn(self, virtualfn):
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"""
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Convert a virtual file name to a real one + the associated subclass keyword
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"""
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fn = virtualfn
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cls = ""
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if virtualfn.startswith('virtual:'):
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cls = virtualfn.split(':', 2)[1]
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fn = virtualfn.replace('virtual:' + cls + ':', '')
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#bb.msg.debug(2, bb.msg.domain.Cache, "virtualfn2realfn %s to %s %s" % (virtualfn, fn, cls))
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return (fn, cls)
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def realfn2virtual(self, realfn, cls):
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"""
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Convert a real filename + the associated subclass keyword to a virtual filename
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"""
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if cls == "":
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#bb.msg.debug(2, bb.msg.domain.Cache, "realfn2virtual %s and '%s' to %s" % (realfn, cls, realfn))
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return realfn
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#bb.msg.debug(2, bb.msg.domain.Cache, "realfn2virtual %s and %s to %s" % (realfn, cls, "virtual:" + cls + ":" + realfn))
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return "virtual:" + cls + ":" + realfn
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2008-09-30 15:08:33 +00:00
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2009-01-03 16:33:11 +00:00
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def loadDataFull(self, virtualfn, cfgData):
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2008-09-30 15:08:33 +00:00
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"""
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Return a complete set of data for fn.
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To do this, we need to parse the file.
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"""
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2009-01-03 16:33:11 +00:00
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(fn, cls) = self.virtualfn2realfn(virtualfn)
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2008-09-30 15:08:33 +00:00
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bb.msg.debug(1, bb.msg.domain.Cache, "Parsing %s (full)" % fn)
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bb_data, skipped = self.load_bbfile(fn, cfgData)
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2009-01-03 16:33:11 +00:00
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if isinstance(bb_data, dict):
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return bb_data[cls]
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2008-09-30 15:08:33 +00:00
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return bb_data
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2009-01-03 16:33:11 +00:00
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def loadData(self, fn, cfgData, cacheData):
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2008-09-30 15:08:33 +00:00
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"""
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Load a subset of data for fn.
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If the cached data is valid we do nothing,
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To do this, we need to parse the file and set the system
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to record the variables accessed.
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Return the cache status and whether the file was skipped when parsed
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"""
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if fn not in self.checked:
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self.cacheValidUpdate(fn)
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if self.cacheValid(fn):
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if "SKIPPED" in self.depends_cache[fn]:
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return True, True
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2009-01-03 16:33:11 +00:00
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self.handle_data(fn, cacheData)
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multi = self.getVar('BBCLASSEXTEND', fn, True)
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if multi:
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for cls in multi.split():
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virtualfn = self.realfn2virtual(fn, cls)
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# Pretend we're clean so getVar works
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self.clean[virtualfn] = ""
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self.handle_data(virtualfn, cacheData)
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2008-09-30 15:08:33 +00:00
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return True, False
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bb.msg.debug(1, bb.msg.domain.Cache, "Parsing %s" % fn)
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bb_data, skipped = self.load_bbfile(fn, cfgData)
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2009-01-03 16:33:11 +00:00
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if skipped:
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if isinstance(bb_data, dict):
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self.setData(fn, fn, bb_data[""])
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else:
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self.setData(fn, fn, bb_data)
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return False, skipped
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if isinstance(bb_data, dict):
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for data in bb_data:
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virtualfn = self.realfn2virtual(fn, data)
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self.setData(virtualfn, fn, bb_data[data])
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self.handle_data(virtualfn, cacheData)
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return False, skipped
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self.setData(fn, fn, bb_data)
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self.handle_data(fn, cacheData)
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2008-09-30 15:08:33 +00:00
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return False, skipped
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def cacheValid(self, fn):
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"""
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Is the cache valid for fn?
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Fast version, no timestamps checked.
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"""
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# Is cache enabled?
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if not self.has_cache:
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return False
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if fn in self.clean:
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return True
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return False
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def cacheValidUpdate(self, fn):
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"""
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Is the cache valid for fn?
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Make thorough (slower) checks including timestamps.
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"""
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# Is cache enabled?
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if not self.has_cache:
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return False
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self.checked[fn] = ""
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# Pretend we're clean so getVar works
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self.clean[fn] = ""
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# File isn't in depends_cache
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if not fn in self.depends_cache:
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bb.msg.debug(2, bb.msg.domain.Cache, "Cache: %s is not cached" % fn)
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self.remove(fn)
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return False
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mtime = bb.parse.cached_mtime_noerror(fn)
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# Check file still exists
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if mtime == 0:
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bb.msg.debug(2, bb.msg.domain.Cache, "Cache: %s not longer exists" % fn)
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self.remove(fn)
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return False
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# Check the file's timestamp
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if mtime != self.getVar("CACHETIMESTAMP", fn, True):
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bb.msg.debug(2, bb.msg.domain.Cache, "Cache: %s changed" % fn)
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self.remove(fn)
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return False
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# Check dependencies are still valid
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depends = self.getVar("__depends", fn, True)
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if depends:
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for f,old_mtime in depends:
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fmtime = bb.parse.cached_mtime_noerror(f)
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# Check if file still exists
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2009-10-17 19:11:27 +00:00
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if old_mtime != 0 and fmtime == 0:
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2008-09-30 15:08:33 +00:00
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self.remove(fn)
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return False
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if (fmtime != old_mtime):
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bb.msg.debug(2, bb.msg.domain.Cache, "Cache: %s's dependency %s changed" % (fn, f))
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self.remove(fn)
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return False
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#bb.msg.debug(2, bb.msg.domain.Cache, "Depends Cache: %s is clean" % fn)
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if not fn in self.clean:
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self.clean[fn] = ""
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return True
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def skip(self, fn):
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"""
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Mark a fn as skipped
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Called from the parser
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"""
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if not fn in self.depends_cache:
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self.depends_cache[fn] = {}
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self.depends_cache[fn]["SKIPPED"] = "1"
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def remove(self, fn):
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"""
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Remove a fn from the cache
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Called from the parser in error cases
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"""
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bb.msg.debug(1, bb.msg.domain.Cache, "Removing %s from cache" % fn)
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if fn in self.depends_cache:
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del self.depends_cache[fn]
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if fn in self.clean:
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del self.clean[fn]
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def sync(self):
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"""
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Save the cache
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Called from the parser when complete (or exiting)
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"""
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2008-09-30 21:54:47 +00:00
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import copy
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2008-09-30 15:08:33 +00:00
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if not self.has_cache:
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return
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if self.cacheclean:
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bb.msg.note(1, bb.msg.domain.Cache, "Cache is clean, not saving.")
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return
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version_data = {}
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version_data['CACHE_VER'] = __cache_version__
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version_data['BITBAKE_VER'] = bb.__version__
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2008-09-30 21:54:47 +00:00
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cache_data = copy.deepcopy(self.depends_cache)
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for fn in self.depends_cache:
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if '__BB_DONT_CACHE' in self.depends_cache[fn] and self.depends_cache[fn]['__BB_DONT_CACHE']:
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bb.msg.debug(2, bb.msg.domain.Cache, "Not caching %s, marked as not cacheable" % fn)
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del cache_data[fn]
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2009-09-22 18:53:34 +00:00
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elif 'PV' in self.depends_cache[fn] and 'SRCREVINACTION' in self.depends_cache[fn]['PV']:
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bb.msg.error(bb.msg.domain.Cache, "Not caching %s as it had SRCREVINACTION in PV. Please report this bug" % fn)
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del cache_data[fn]
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2008-09-30 21:54:47 +00:00
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2008-09-30 15:08:33 +00:00
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p = pickle.Pickler(file(self.cachefile, "wb" ), -1 )
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2008-09-30 21:54:47 +00:00
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p.dump([cache_data, version_data])
|
2008-09-30 15:08:33 +00:00
|
|
|
|
|
|
|
def mtime(self, cachefile):
|
|
|
|
return bb.parse.cached_mtime_noerror(cachefile)
|
|
|
|
|
|
|
|
def handle_data(self, file_name, cacheData):
|
|
|
|
"""
|
|
|
|
Save data we need into the cache
|
|
|
|
"""
|
|
|
|
|
|
|
|
pn = self.getVar('PN', file_name, True)
|
|
|
|
pe = self.getVar('PE', file_name, True) or "0"
|
|
|
|
pv = self.getVar('PV', file_name, True)
|
2009-09-22 18:53:34 +00:00
|
|
|
if 'SRCREVINACTION' in pv:
|
|
|
|
bb.note("Found SRCREVINACTION in PV (%s) or %s. Please report this bug." % (pv, file_name))
|
2008-09-30 15:08:33 +00:00
|
|
|
pr = self.getVar('PR', file_name, True)
|
|
|
|
dp = int(self.getVar('DEFAULT_PREFERENCE', file_name, True) or "0")
|
|
|
|
depends = bb.utils.explode_deps(self.getVar("DEPENDS", file_name, True) or "")
|
|
|
|
packages = (self.getVar('PACKAGES', file_name, True) or "").split()
|
|
|
|
packages_dynamic = (self.getVar('PACKAGES_DYNAMIC', file_name, True) or "").split()
|
|
|
|
rprovides = (self.getVar("RPROVIDES", file_name, True) or "").split()
|
|
|
|
|
|
|
|
cacheData.task_deps[file_name] = self.getVar("_task_deps", file_name, True)
|
|
|
|
|
|
|
|
# build PackageName to FileName lookup table
|
|
|
|
if pn not in cacheData.pkg_pn:
|
|
|
|
cacheData.pkg_pn[pn] = []
|
|
|
|
cacheData.pkg_pn[pn].append(file_name)
|
|
|
|
|
|
|
|
cacheData.stamp[file_name] = self.getVar('STAMP', file_name, True)
|
|
|
|
|
|
|
|
# build FileName to PackageName lookup table
|
|
|
|
cacheData.pkg_fn[file_name] = pn
|
|
|
|
cacheData.pkg_pepvpr[file_name] = (pe,pv,pr)
|
|
|
|
cacheData.pkg_dp[file_name] = dp
|
|
|
|
|
|
|
|
provides = [pn]
|
|
|
|
for provide in (self.getVar("PROVIDES", file_name, True) or "").split():
|
|
|
|
if provide not in provides:
|
|
|
|
provides.append(provide)
|
|
|
|
|
|
|
|
# Build forward and reverse provider hashes
|
|
|
|
# Forward: virtual -> [filenames]
|
|
|
|
# Reverse: PN -> [virtuals]
|
|
|
|
if pn not in cacheData.pn_provides:
|
|
|
|
cacheData.pn_provides[pn] = []
|
|
|
|
|
|
|
|
cacheData.fn_provides[file_name] = provides
|
|
|
|
for provide in provides:
|
|
|
|
if provide not in cacheData.providers:
|
|
|
|
cacheData.providers[provide] = []
|
|
|
|
cacheData.providers[provide].append(file_name)
|
|
|
|
if not provide in cacheData.pn_provides[pn]:
|
|
|
|
cacheData.pn_provides[pn].append(provide)
|
|
|
|
|
|
|
|
cacheData.deps[file_name] = []
|
|
|
|
for dep in depends:
|
|
|
|
if not dep in cacheData.deps[file_name]:
|
|
|
|
cacheData.deps[file_name].append(dep)
|
|
|
|
if not dep in cacheData.all_depends:
|
|
|
|
cacheData.all_depends.append(dep)
|
|
|
|
|
|
|
|
# Build reverse hash for PACKAGES, so runtime dependencies
|
|
|
|
# can be be resolved (RDEPENDS, RRECOMMENDS etc.)
|
|
|
|
for package in packages:
|
|
|
|
if not package in cacheData.packages:
|
|
|
|
cacheData.packages[package] = []
|
|
|
|
cacheData.packages[package].append(file_name)
|
|
|
|
rprovides += (self.getVar("RPROVIDES_%s" % package, file_name, 1) or "").split()
|
|
|
|
|
|
|
|
for package in packages_dynamic:
|
|
|
|
if not package in cacheData.packages_dynamic:
|
|
|
|
cacheData.packages_dynamic[package] = []
|
|
|
|
cacheData.packages_dynamic[package].append(file_name)
|
|
|
|
|
|
|
|
for rprovide in rprovides:
|
|
|
|
if not rprovide in cacheData.rproviders:
|
|
|
|
cacheData.rproviders[rprovide] = []
|
|
|
|
cacheData.rproviders[rprovide].append(file_name)
|
|
|
|
|
|
|
|
# Build hash of runtime depends and rececommends
|
|
|
|
|
|
|
|
if not file_name in cacheData.rundeps:
|
|
|
|
cacheData.rundeps[file_name] = {}
|
|
|
|
if not file_name in cacheData.runrecs:
|
|
|
|
cacheData.runrecs[file_name] = {}
|
|
|
|
|
|
|
|
rdepends = self.getVar('RDEPENDS', file_name, True) or ""
|
|
|
|
rrecommends = self.getVar('RRECOMMENDS', file_name, True) or ""
|
|
|
|
for package in packages + [pn]:
|
|
|
|
if not package in cacheData.rundeps[file_name]:
|
|
|
|
cacheData.rundeps[file_name][package] = []
|
|
|
|
if not package in cacheData.runrecs[file_name]:
|
|
|
|
cacheData.runrecs[file_name][package] = []
|
|
|
|
|
|
|
|
cacheData.rundeps[file_name][package] = rdepends + " " + (self.getVar("RDEPENDS_%s" % package, file_name, True) or "")
|
|
|
|
cacheData.runrecs[file_name][package] = rrecommends + " " + (self.getVar("RRECOMMENDS_%s" % package, file_name, True) or "")
|
|
|
|
|
|
|
|
# Collect files we may need for possible world-dep
|
|
|
|
# calculations
|
|
|
|
if not self.getVar('BROKEN', file_name, True) and not self.getVar('EXCLUDE_FROM_WORLD', file_name, True):
|
|
|
|
cacheData.possible_world.append(file_name)
|
|
|
|
|
2008-09-30 21:54:47 +00:00
|
|
|
# Touch this to make sure its in the cache
|
|
|
|
self.getVar('__BB_DONT_CACHE', file_name, True)
|
2009-01-03 16:33:11 +00:00
|
|
|
self.getVar('BBCLASSEXTEND', file_name, True)
|
2008-09-30 15:08:33 +00:00
|
|
|
|
|
|
|
def load_bbfile( self, bbfile , config):
|
|
|
|
"""
|
|
|
|
Load and parse one .bb build file
|
|
|
|
Return the data and whether parsing resulted in the file being skipped
|
|
|
|
"""
|
|
|
|
|
|
|
|
import bb
|
|
|
|
from bb import utils, data, parse, debug, event, fatal
|
|
|
|
|
|
|
|
# expand tmpdir to include this topdir
|
|
|
|
data.setVar('TMPDIR', data.getVar('TMPDIR', config, 1) or "", config)
|
|
|
|
bbfile_loc = os.path.abspath(os.path.dirname(bbfile))
|
|
|
|
oldpath = os.path.abspath(os.getcwd())
|
|
|
|
if bb.parse.cached_mtime_noerror(bbfile_loc):
|
|
|
|
os.chdir(bbfile_loc)
|
|
|
|
bb_data = data.init_db(config)
|
|
|
|
try:
|
|
|
|
bb_data = parse.handle(bbfile, bb_data) # read .bb data
|
|
|
|
os.chdir(oldpath)
|
|
|
|
return bb_data, False
|
|
|
|
except bb.parse.SkipPackage:
|
|
|
|
os.chdir(oldpath)
|
|
|
|
return bb_data, True
|
|
|
|
except:
|
|
|
|
os.chdir(oldpath)
|
|
|
|
raise
|
|
|
|
|
|
|
|
def init(cooker):
|
|
|
|
"""
|
|
|
|
The Objective: Cache the minimum amount of data possible yet get to the
|
|
|
|
stage of building packages (i.e. tryBuild) without reparsing any .bb files.
|
|
|
|
|
|
|
|
To do this, we intercept getVar calls and only cache the variables we see
|
|
|
|
being accessed. We rely on the cache getVar calls being made for all
|
|
|
|
variables bitbake might need to use to reach this stage. For each cached
|
|
|
|
file we need to track:
|
|
|
|
|
|
|
|
* Its mtime
|
|
|
|
* The mtimes of all its dependencies
|
|
|
|
* Whether it caused a parse.SkipPackage exception
|
|
|
|
|
|
|
|
Files causing parsing errors are evicted from the cache.
|
|
|
|
|
|
|
|
"""
|
|
|
|
return Cache(cooker)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#============================================================================#
|
|
|
|
# CacheData
|
|
|
|
#============================================================================#
|
|
|
|
class CacheData:
|
|
|
|
"""
|
|
|
|
The data structures we compile from the cached data
|
|
|
|
"""
|
|
|
|
|
|
|
|
def __init__(self):
|
|
|
|
"""
|
|
|
|
Direct cache variables
|
|
|
|
(from Cache.handle_data)
|
|
|
|
"""
|
|
|
|
self.providers = {}
|
|
|
|
self.rproviders = {}
|
|
|
|
self.packages = {}
|
|
|
|
self.packages_dynamic = {}
|
|
|
|
self.possible_world = []
|
|
|
|
self.pkg_pn = {}
|
|
|
|
self.pkg_fn = {}
|
|
|
|
self.pkg_pepvpr = {}
|
|
|
|
self.pkg_dp = {}
|
|
|
|
self.pn_provides = {}
|
|
|
|
self.fn_provides = {}
|
|
|
|
self.all_depends = []
|
|
|
|
self.deps = {}
|
|
|
|
self.rundeps = {}
|
|
|
|
self.runrecs = {}
|
|
|
|
self.task_queues = {}
|
|
|
|
self.task_deps = {}
|
|
|
|
self.stamp = {}
|
|
|
|
self.preferred = {}
|
|
|
|
|
|
|
|
"""
|
|
|
|
Indirect Cache variables
|
|
|
|
(set elsewhere)
|
|
|
|
"""
|
|
|
|
self.ignored_dependencies = []
|
2009-05-11 21:59:35 +00:00
|
|
|
self.world_target = set()
|
2008-09-30 15:08:33 +00:00
|
|
|
self.bbfile_priority = {}
|
|
|
|
self.bbfile_config_priorities = []
|