bitbake: Update to 1.8.1 (inc. various bug fixes, epoch support)

git-svn-id: https://svn.o-hand.com/repos/poky/trunk@1419 311d38ba-8fff-0310-9ca6-ca027cbcb966

18 files changed, 532 insertions, 538 deletions

diff --git a/bitbake/ChangeLog b/bitbake/ChangeLog
index 135aba9fe..0cb85db87 100644
--- a/bitbake/ChangeLog
+++ b/bitbake/ChangeLog
@@ -1,10 +1,52 @@
-Changes in BitBake 1.7.3:
+Changes in Bitbake 1.8.2:
+	- Catch truncated cache file errors
+	- Add PE (Package Epoch) support from Philipp Zabel (pH5)
+	- Add code to handle inter-task dependencies
+	- Allow operations other than assignment on flag variables
 
-Changes in BitBake 1.7.1:
-    - Major updates of the dependency handling and execution
-      of tasks
-    - Change of the SVN Fetcher to keep the checkout around
-      courtsey to Paul Sokolovsky (#1367)
+Changes in Bitbake 1.8.0:
+	- Release 1.7.x as a stable series
+
+Changes in BitBake 1.7.x:
+	- Major updates of the dependency handling and execution
+	  of tasks. Code from bin/bitbake replaced with runqueue.py
+	  and taskdata.py
+	- New task execution code supports multithreading with a simplistic
+	  threading algorithm controlled by BB_NUMBER_THREADS
+	- Change of the SVN Fetcher to keep the checkout around
+	  courtsey of Paul Sokolovsky (#1367)
+	- PATH fix to bbimage (#1108)
+	- Allow debug domains to be specified on the commandline (-l)
+	- Allow 'interactive' tasks
+	- Logging message improvements
+	- Drop now uneeded BUILD_ALL_DEPS variable
+	- Add support for wildcards to -b option
+	- Major overhaul of the fetchers making a large amount of code common
+	  including mirroring code
+	- Fetchers now touch md5 stamps upon access (to show activity)
+	- Fix -f force option when used without -b (long standing bug)
+	- Add expand_cache to data_cache.py, caching expanded data (speedup)
+	- Allow version field in DEPENDS (ignored for now)
+	- Add abort flag support to the shell
+	- Make inherit fail if the class doesn't exist (#1478)
+	- Fix data.emit_env() to expand keynames as well as values
+	- Add ssh fetcher
+	- Add perforce fetcher
+	- Make PREFERRED_PROVIDER_foobar defaults to foobar if available
+	- Share the parser's mtime_cache, reducing the number of stat syscalls
+	- Compile all anonfuncs at once! 
+	  *** Anonfuncs must now use common spacing format ***
+	- Memorise the list of handlers in __BBHANDLERS and tasks in __BBTASKS
+	  This removes 2 million function calls resulting in a 5-10% speedup
+	- Add manpage
+	- Update generateDotGraph to use taskData/runQueue improving accuracy
+	  and also adding a task dependency graph
+	- Fix/standardise on GPLv2 licence
+	- Move most functionality from bin/bitbake to cooker.py and split into
+	  separate funcitons
+	- CVS fetcher: Added support for non-default port
+	- Add BBINCLUDELOGS_LINES, the number of lines to read from any logfile
+	- Drop shebangs from lib/bb scripts
 
 Changes in Bitbake 1.6.0:
 	- Better msg handling
diff --git a/bitbake/MANIFEST b/bitbake/MANIFEST
index 0440a4e2e..a0e39c771 100644
--- a/bitbake/MANIFEST
+++ b/bitbake/MANIFEST
@@ -1,45 +1,49 @@
 AUTHORS
+COPYING
 ChangeLog
 MANIFEST
 setup.py
 bin/bitdoc
 bin/bbimage
 bin/bitbake
-lib/bb/COW.py
 lib/bb/__init__.py
 lib/bb/build.py
 lib/bb/cache.py
 lib/bb/cooker.py
+lib/bb/COW.py
 lib/bb/data.py
 lib/bb/data_smart.py
 lib/bb/event.py
-lib/bb/manifest.py
-lib/bb/methodpool.py
-lib/bb/msg.py
-lib/bb/providers.py
-lib/bb/runqueue.py
-lib/bb/shell.py
-lib/bb/taskdata.py
-lib/bb/utils.py
+lib/bb/fetch/__init__.py
 lib/bb/fetch/cvs.py
 lib/bb/fetch/git.py
-lib/bb/fetch/__init__.py
 lib/bb/fetch/local.py
 lib/bb/fetch/perforce.py
 lib/bb/fetch/ssh.py
 lib/bb/fetch/svk.py
 lib/bb/fetch/svn.py
 lib/bb/fetch/wget.py
+lib/bb/manifest.py
+lib/bb/methodpool.py
+lib/bb/msg.py
 lib/bb/parse/__init__.py
+lib/bb/parse/parse_py/__init__.py
 lib/bb/parse/parse_py/BBHandler.py
 lib/bb/parse/parse_py/ConfHandler.py
-lib/bb/parse/parse_py/__init__.py
+lib/bb/providers.py
+lib/bb/runqueue.py
+lib/bb/shell.py
+lib/bb/taskdata.py
+lib/bb/utils.py
+setup.py
 doc/COPYING.GPL
 doc/COPYING.MIT
+doc/bitbake.1
 doc/manual/html.css
 doc/manual/Makefile
 doc/manual/usermanual.xml
 contrib/bbdev.sh
 contrib/vim/syntax/bitbake.vim
+contrib/vim/ftdetect/bitbake.vim
 conf/bitbake.conf
 classes/base.bbclass
diff --git a/bitbake/bin/bitbake b/bitbake/bin/bitbake
index 001f22933..70a862a81 100755
--- a/bitbake/bin/bitbake
+++ b/bitbake/bin/bitbake
@@ -27,7 +27,7 @@ sys.path.insert(0,os.path.join(os.path.dirname(os.path.dirname(sys.argv[0])), 'l
 import bb
 from bb import cooker
 
-__version__ = "1.7.4"
+__version__ = "1.8.1"
 
 #============================================================================#
 # BBOptions
@@ -109,15 +109,9 @@ Default BBFILES are the .bb files in the current directory.""" )
     configuration.pkgs_to_build = []
     configuration.pkgs_to_build.extend(args[1:])
 
-    bb.cooker.BBCooker().cook(configuration)
+    cooker = bb.cooker.BBCooker(configuration)
+    cooker.cook()
+
 
 if __name__ == "__main__":
     main()
-    sys.exit(0)
-    import profile
-    profile.run('main()', "profile.log")
-    import pstats
-    p = pstats.Stats('profile.log')
-    p.sort_stats('time')
-    p.print_stats()
-    p.print_callers()
diff --git a/bitbake/classes/base.bbclass b/bitbake/classes/base.bbclass
deleted file mode 100644
index cfb82a41c..000000000
--- a/bitbake/classes/base.bbclass
+++ /dev/null
@@ -1,79 +0,0 @@
-# Copyright (C) 2003  Chris Larson
-#
-# Permission is hereby granted, free of charge, to any person obtaining a
-# copy of this software and associated documentation files (the "Software"),
-# to deal in the Software without restriction, including without limitation
-# the rights to use, copy, modify, merge, publish, distribute, sublicense,
-# and/or sell copies of the Software, and to permit persons to whom the
-# Software is furnished to do so, subject to the following conditions:
-# 
-# The above copyright notice and this permission notice shall be included
-# in all copies or substantial portions of the Software.
-# 
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
-# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
-# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-# OTHER DEALINGS IN THE SOFTWARE.
-
-die() {
-	bbfatal "$*"
-}
-
-bbnote() {
-	echo "NOTE:" "$*"
-}
-
-bbwarn() {
-	echo "WARNING:" "$*"
-}
-
-bbfatal() {
-	echo "FATAL:" "$*"
-	exit 1
-}
-
-bbdebug() {
-	test $# -ge 2 || {
-		echo "Usage: bbdebug level \"message\""
-		exit 1
-	}
-
-	test ${@bb.msg.debug_level} -ge $1 && {
-		shift
-		echo "DEBUG:" $*
-	}
-}
-
-addtask showdata
-do_showdata[nostamp] = "1"
-python do_showdata() {
-	import sys
-	# emit variables and shell functions
-	bb.data.emit_env(sys.__stdout__, d, True)
-	# emit the metadata which isnt valid shell
-	for e in bb.data.keys(d):
-		if bb.data.getVarFlag(e, 'python', d):
-			sys.__stdout__.write("\npython %s () {\n%s}\n" % (e, bb.data.getVar(e, d, 1)))
-}
-
-addtask listtasks
-do_listtasks[nostamp] = "1"
-python do_listtasks() {
-	import sys
-	for e in bb.data.keys(d):
-		if bb.data.getVarFlag(e, 'task', d):
-			sys.__stdout__.write("%s\n" % e)
-}
-
-addtask build
-do_build[dirs] = "${TOPDIR}"
-do_build[nostamp] = "1"
-python base_do_build () {
-	bb.note("The included, default BB base.bbclass does not define a useful default task.")
-	bb.note("Try running the 'listtasks' task against a .bb to see what tasks are defined.")
-}
-
-EXPORT_FUNCTIONS do_clean do_mrproper do_build
diff --git a/bitbake/conf/bitbake.conf b/bitbake/conf/bitbake.conf
deleted file mode 100644
index 19a3fe8ef..000000000
--- a/bitbake/conf/bitbake.conf
+++ /dev/null
@@ -1,58 +0,0 @@
-# Copyright (C) 2003  Chris Larson
-#
-# Permission is hereby granted, free of charge, to any person obtaining a
-# copy of this software and associated documentation files (the "Software"),
-# to deal in the Software without restriction, including without limitation
-# the rights to use, copy, modify, merge, publish, distribute, sublicense,
-# and/or sell copies of the Software, and to permit persons to whom the
-# Software is furnished to do so, subject to the following conditions:
-# 
-# The above copyright notice and this permission notice shall be included
-# in all copies or substantial portions of the Software.
-# 
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
-# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
-# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-# OTHER DEALINGS IN THE SOFTWARE.
-
-B = "${S}"
-CVSDIR = "${DL_DIR}/cvs"
-DEPENDS = ""
-DEPLOY_DIR = "${TMPDIR}/deploy"
-DEPLOY_DIR_IMAGE = "${DEPLOY_DIR}/images"
-DL_DIR = "${TMPDIR}/downloads"
-FETCHCOMMAND = ""
-FETCHCOMMAND_cvs = "/usr/bin/env cvs -d${CVSROOT} co ${CVSCOOPTS} ${CVSMODULE}"
-FETCHCOMMAND_svn = "/usr/bin/env svn co ${SVNCOOPTS} ${SVNROOT} ${SVNMODULE}"
-FETCHCOMMAND_wget = "/usr/bin/env wget -t 5 --passive-ftp -P ${DL_DIR} ${URI}"
-FILESDIR = "${@bb.which(bb.data.getVar('FILESPATH', d, 1), '.')}"
-FILESPATH = "${FILE_DIRNAME}/${PF}:${FILE_DIRNAME}/${P}:${FILE_DIRNAME}/${PN}:${FILE_DIRNAME}/files:${FILE_DIRNAME}"
-FILE_DIRNAME = "${@os.path.dirname(bb.data.getVar('FILE', d))}"
-GITDIR = "${DL_DIR}/git"
-IMAGE_CMD = "_NO_DEFINED_IMAGE_TYPES_"
-IMAGE_ROOTFS = "${TMPDIR}/rootfs"
-MKTEMPCMD = "mktemp -q ${TMPBASE}"
-MKTEMPDIRCMD = "mktemp -d -q ${TMPBASE}"
-OVERRIDES = "local:${MACHINE}:${TARGET_OS}:${TARGET_ARCH}"
-P = "${PN}-${PV}"
-PF = "${PN}-${PV}-${PR}"
-PN = "${@bb.parse.BBHandler.vars_from_file(bb.data.getVar('FILE',d),d)[0] or 'defaultpkgname'}"
-PR = "${@bb.parse.BBHandler.vars_from_file(bb.data.getVar('FILE',d),d)[2] or 'r0'}"
-PROVIDES = ""
-PV = "${@bb.parse.BBHandler.vars_from_file(bb.data.getVar('FILE',d),d)[1] or '1.0'}"
-RESUMECOMMAND = ""
-RESUMECOMMAND_wget = "/usr/bin/env wget -c -t 5 --passive-ftp -P ${DL_DIR} ${URI}"
-S = "${WORKDIR}/${P}"
-SRC_URI = "file://${FILE}"
-STAMP = "${TMPDIR}/stamps/${PF}"
-SVNDIR = "${DL_DIR}/svn"
-T = "${WORKDIR}/temp"
-TARGET_ARCH = "${BUILD_ARCH}"
-TMPDIR = "${TOPDIR}/tmp"
-UPDATECOMMAND = ""
-UPDATECOMMAND_cvs = "/usr/bin/env cvs -d${CVSROOT} update ${CVSCOOPTS}"
-UPDATECOMMAND_svn = "/usr/bin/env svn update ${SVNCOOPTS}"
-WORKDIR = "${TMPDIR}/work/${PF}"
diff --git a/bitbake/lib/bb/__init__.py b/bitbake/lib/bb/__init__.py
index a11af84b1..e34122a61 100644
--- a/bitbake/lib/bb/__init__.py
+++ b/bitbake/lib/bb/__init__.py
@@ -21,7 +21,7 @@
 # with this program; if not, write to the Free Software Foundation, Inc.,
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
-__version__ = "1.7.4"
+__version__ = "1.8.1"
 
 __all__ = [
 
diff --git a/bitbake/lib/bb/build.py b/bitbake/lib/bb/build.py
index bf6b612f3..3494c0a28 100644
--- a/bitbake/lib/bb/build.py
+++ b/bitbake/lib/bb/build.py
@@ -188,7 +188,8 @@ def exec_func_shell(func, d):
         maybe_fakeroot = "PATH=\"%s\" fakeroot " % bb.data.getVar("PATH", d, 1)
     else:
         maybe_fakeroot = ''
-    ret = os.system('%ssh -e %s' % (maybe_fakeroot, runfile))
+    lang_environment = "LC_ALL=C "
+    ret = os.system('%s%ssh -e %s' % (lang_environment, maybe_fakeroot, runfile))
     try:
         os.chdir(prevdir)
     except:
diff --git a/bitbake/lib/bb/cache.py b/bitbake/lib/bb/cache.py
index 934d230e6..335b22197 100644
--- a/bitbake/lib/bb/cache.py
+++ b/bitbake/lib/bb/cache.py
@@ -39,7 +39,7 @@ except ImportError:
     import pickle
     bb.msg.note(1, bb.msg.domain.Cache, "Importing cPickle failed. Falling back to a very slow implementation.")
 
-__cache_version__ = "125"
+__cache_version__ = "126"
 
 class Cache:
     """
@@ -75,6 +75,9 @@ class Cache:
                     raise ValueError, 'Cache Version Mismatch'
                 if version_data['BITBAKE_VER'] != bb.__version__:
                     raise ValueError, 'Bitbake Version Mismatch'
+            except EOFError:
+                bb.msg.note(1, bb.msg.domain.Cache, "Truncated cache found, rebuilding...")
+                self.depends_cache = {}
             except (ValueError, KeyError):
                 bb.msg.note(1, bb.msg.domain.Cache, "Invalid cache found, rebuilding...")
                 self.depends_cache = {}
@@ -251,6 +254,7 @@ class Cache:
         """
 
         pn       = self.getVar('PN', file_name, True)
+        pe       = self.getVar('PE', file_name, True) or "0"
         pv       = self.getVar('PV', file_name, True)
         pr       = self.getVar('PR', file_name, True)
         dp       = int(self.getVar('DEFAULT_PREFERENCE', file_name, True) or "0")
@@ -272,7 +276,7 @@ class Cache:
 
         # build FileName to PackageName lookup table
         cacheData.pkg_fn[file_name] = pn
-        cacheData.pkg_pvpr[file_name] = (pv,pr)
+        cacheData.pkg_pepvpr[file_name] = (pe,pv,pr)
         cacheData.pkg_dp[file_name] = dp
 
         # Build forward and reverse provider hashes
@@ -407,7 +411,7 @@ class CacheData:
         self.possible_world = []
         self.pkg_pn = {}
         self.pkg_fn = {}
-        self.pkg_pvpr = {}
+        self.pkg_pepvpr = {}
         self.pkg_dp = {}
         self.pn_provides = {}
         self.all_depends = Set()
diff --git a/bitbake/lib/bb/cooker.py b/bitbake/lib/bb/cooker.py
index 8a9c58863..4b2a90613 100644
--- a/bitbake/lib/bb/cooker.py
+++ b/bitbake/lib/bb/cooker.py
@@ -31,29 +31,6 @@ import itertools
 parsespin = itertools.cycle( r'|/-\\' )
 
 #============================================================================#
-# BBStatistics
-#============================================================================#
-class BBStatistics:
-    """
-    Manage build statistics for one run
-    """
-    def __init__(self ):
-        self.attempt = 0
-        self.success = 0
-        self.fail = 0
-        self.deps = 0
-
-    def show( self ):
-        print "Build statistics:"
-        print "  Attempted builds: %d" % self.attempt
-        if self.fail:
-            print "  Failed builds: %d" % self.fail
-        if self.deps:
-            print "  Dependencies not satisfied: %d" % self.deps
-        if self.fail or self.deps: return 1
-        else: return 0
-
-#============================================================================#
 # BBCooker
 #============================================================================#
 class BBCooker:
@@ -61,43 +38,61 @@ class BBCooker:
     Manages one bitbake build run
     """
 
-    Statistics = BBStatistics           # make it visible from the shell
-
-    def __init__( self ):
-        self.build_cache_fail = []
-        self.build_cache = []
-        self.stats = BBStatistics()
+    def __init__(self, configuration):
         self.status = None
 
         self.cache = None
         self.bb_cache = None
 
+        self.configuration = configuration
+
+        if self.configuration.verbose:
+            bb.msg.set_verbose(True)
+
+        if self.configuration.debug:
+            bb.msg.set_debug_level(self.configuration.debug)
+        else:
+            bb.msg.set_debug_level(0)
+
+        if self.configuration.debug_domains:
+            bb.msg.set_debug_domains(self.configuration.debug_domains)
+
+        self.configuration.data = bb.data.init()
+
+        for f in self.configuration.file:
+            self.parseConfigurationFile( f )
+
+        self.parseConfigurationFile( os.path.join( "conf", "bitbake.conf" ) )
+
+        if not self.configuration.cmd:
+            self.configuration.cmd = bb.data.getVar("BB_DEFAULT_TASK", self.configuration.data) or "build"
+
+        #
+        # Special updated configuration we use for firing events
+        #
+        self.configuration.event_data = bb.data.createCopy(self.configuration.data)
+        bb.data.update_data(self.configuration.event_data)
+
     def tryBuildPackage(self, fn, item, task, the_data, build_depends):
         """
         Build one task of a package, optionally build following task depends
         """
         bb.event.fire(bb.event.PkgStarted(item, the_data))
         try:
-            self.stats.attempt += 1
             if not build_depends:
                 bb.data.setVarFlag('do_%s' % task, 'dontrundeps', 1, the_data)
             if not self.configuration.dry_run:
                 bb.build.exec_task('do_%s' % task, the_data)
             bb.event.fire(bb.event.PkgSucceeded(item, the_data))
-            self.build_cache.append(fn)
             return True
         except bb.build.FuncFailed:
-            self.stats.fail += 1
             bb.msg.error(bb.msg.domain.Build, "task stack execution failed")
             bb.event.fire(bb.event.PkgFailed(item, the_data))
-            self.build_cache_fail.append(fn)
             raise
         except bb.build.EventException, e:
-            self.stats.fail += 1
             event = e.args[1]
             bb.msg.error(bb.msg.domain.Build, "%s event exception, aborting" % bb.event.getName(event))
             bb.event.fire(bb.event.PkgFailed(item, the_data))
-            self.build_cache_fail.append(fn)
             raise
 
     def tryBuild( self, fn, build_depends):
@@ -112,12 +107,11 @@ class BBCooker:
         item = self.status.pkg_fn[fn]
 
         if bb.build.stamp_is_current('do_%s' % self.configuration.cmd, the_data):
-            self.build_cache.append(fn)
             return True
 
         return self.tryBuildPackage(fn, item, self.configuration.cmd, the_data, build_depends)
 
-    def showVersions( self ):
+    def showVersions(self):
         pkg_pn = self.status.pkg_pn
         preferred_versions = {}
         latest_versions = {}
@@ -136,11 +130,11 @@ class BBCooker:
             latest = latest_versions[p]
 
             if pref != latest:
-                prefstr = pref[0][0] + "-" + pref[0][1]
+                prefstr = pref[0][0] + ":" + pref[0][1] + '-' + pref[0][2]
             else:
                 prefstr = ""
 
-            print "%-30s %20s %20s" % (p, latest[0][0] + "-" + latest[0][1],
+            print "%-30s %20s %20s" % (p, latest[0][0] + ":" + latest[0][1] + "-" + latest[0][2],
                                         prefstr)
 
 
@@ -192,8 +186,8 @@ class BBCooker:
             taskdata.add_unresolved(localdata, self.status)
         except bb.providers.NoProvider:
             sys.exit(1)
-        rq = bb.runqueue.RunQueue()
-        rq.prepare_runqueue(self, self.configuration.data, self.status, taskdata, runlist)
+        rq = bb.runqueue.RunQueue(self, self.configuration.data, self.status, taskdata, runlist)
+        rq.prepare_runqueue()
 
         seen_fnids = []  
         depends_file = file('depends.dot', 'w' )
@@ -371,98 +365,138 @@ class BBCooker:
                 except ValueError:
                     bb.msg.error(bb.msg.domain.Parsing, "invalid value for BBFILE_PRIORITY_%s: \"%s\"" % (c, priority))
 
+    def buildSetVars(self):
+        """
+        Setup any variables needed before starting a build
+        """
+        if not bb.data.getVar("BUILDNAME", self.configuration.data):
+            bb.data.setVar("BUILDNAME", os.popen('date +%Y%m%d%H%M').readline().strip(), self.configuration.data)
+        bb.data.setVar("BUILDSTART", time.strftime('%m/%d/%Y %H:%M:%S',time.gmtime()),self.configuration.data)
 
-    def cook(self, configuration):
+    def buildFile(self, buildfile):
         """
-        We are building stuff here. We do the building
-        from here. By default we try to execute task
-        build.
+        Build the file matching regexp buildfile
         """
 
-        self.configuration = configuration
+        bf = os.path.abspath(buildfile)
+        try:
+            os.stat(bf)
+        except OSError:
+            (filelist, masked) = self.collect_bbfiles()
+            regexp = re.compile(buildfile)
+            matches = []
+            for f in filelist:
+                if regexp.search(f) and os.path.isfile(f):
+                    bf = f
+                    matches.append(f)
+            if len(matches) != 1:
+                bb.msg.error(bb.msg.domain.Parsing, "Unable to match %s (%s matches found):" % (buildfile, len(matches)))
+                for f in matches:
+                    bb.msg.error(bb.msg.domain.Parsing, "    %s" % f)
+                sys.exit(1)
+            bf = matches[0]		    
 
-        if self.configuration.verbose:
-            bb.msg.set_verbose(True)
+        bbfile_data = bb.parse.handle(bf, self.configuration.data)
 
-        if self.configuration.debug:
-            bb.msg.set_debug_level(self.configuration.debug)
+        # Remove stamp for target if force mode active
+        if self.configuration.force:
+            bb.msg.note(2, bb.msg.domain.RunQueue, "Remove stamp %s, %s" % (self.configuration.cmd, bf))
+            bb.build.del_stamp('do_%s' % self.configuration.cmd, bbfile_data)
+
+        item = bb.data.getVar('PN', bbfile_data, 1)
+        try:
+            self.tryBuildPackage(bf, item, self.configuration.cmd, bbfile_data, True)
+        except bb.build.EventException:
+            bb.msg.error(bb.msg.domain.Build,  "Build of '%s' failed" % item )
+
+        sys.exit(0)
+
+    def buildTargets(self, targets):
+        """
+        Attempt to build the targets specified
+        """
+
+        buildname = bb.data.getVar("BUILDNAME", self.configuration.data)
+        bb.event.fire(bb.event.BuildStarted(buildname, targets, self.configuration.event_data))
+
+        localdata = data.createCopy(self.configuration.data)
+        bb.data.update_data(localdata)
+        bb.data.expandKeys(localdata)
+
+        taskdata = bb.taskdata.TaskData(self.configuration.abort)
+
+        runlist = []
+        try:
+            for k in targets:
+                taskdata.add_provider(localdata, self.status, k)
+                runlist.append([k, "do_%s" % self.configuration.cmd])
+            taskdata.add_unresolved(localdata, self.status)
+        except bb.providers.NoProvider:
+            sys.exit(1)
+
+        rq = bb.runqueue.RunQueue(self, self.configuration.data, self.status, taskdata, runlist)
+        rq.prepare_runqueue()
+        try:
+            failures = rq.execute_runqueue()
+        except runqueue.TaskFailure, fnids:
+            for fnid in fnids:
+                bb.msg.error(bb.msg.domain.Build, "'%s' failed" % taskdata.fn_index[fnid])
+            sys.exit(1)
+        bb.event.fire(bb.event.BuildCompleted(buildname, targets, self.configuration.event_data, failures))
+
+        sys.exit(0)
+
+    def updateCache(self):
+        # Import Psyco if available and not disabled
+        if not self.configuration.disable_psyco:
+            try:
+                import psyco
+            except ImportError:
+                bb.msg.note(1, bb.msg.domain.Collection, "Psyco JIT Compiler (http://psyco.sf.net) not available. Install it to increase performance.")
+            else:
+                psyco.bind( self.parse_bbfiles )
         else:
-            bb.msg.set_debug_level(0)
+            bb.msg.note(1, bb.msg.domain.Collection, "You have disabled Psyco. This decreases performance.")
 
-        if self.configuration.debug_domains:
-            bb.msg.set_debug_domains(self.configuration.debug_domains)
+        self.status = bb.cache.CacheData()
 
-        self.configuration.data = bb.data.init()
+        ignore = bb.data.getVar("ASSUME_PROVIDED", self.configuration.data, 1) or ""
+        self.status.ignored_dependencies = Set( ignore.split() )
 
-        for f in self.configuration.file:
-            self.parseConfigurationFile( f )
+        self.handleCollections( bb.data.getVar("BBFILE_COLLECTIONS", self.configuration.data, 1) )
 
-        self.parseConfigurationFile( os.path.join( "conf", "bitbake.conf" ) )
+        bb.msg.debug(1, bb.msg.domain.Collection, "collecting .bb files")
+        (filelist, masked) = self.collect_bbfiles()
+        self.parse_bbfiles(filelist, masked, self.myProgressCallback)
+        bb.msg.debug(1, bb.msg.domain.Collection, "parsing complete")
 
-        if not self.configuration.cmd:
-            self.configuration.cmd = bb.data.getVar("BB_DEFAULT_TASK", self.configuration.data) or "build"
+        self.buildDepgraph()
 
-        #
-        # Special updated configuration we use for firing events
-        #
-        self.configuration.event_data = bb.data.createCopy(self.configuration.data)
-        bb.data.update_data(self.configuration.event_data)
+    def cook(self):
+        """
+        We are building stuff here. We do the building
+        from here. By default we try to execute task
+        build.
+        """
 
         if self.configuration.show_environment:
             self.showEnvironment()
             sys.exit( 0 )
 
-        # inject custom variables
-        if not bb.data.getVar("BUILDNAME", self.configuration.data):
-            bb.data.setVar("BUILDNAME", os.popen('date +%Y%m%d%H%M').readline().strip(), self.configuration.data)
-        bb.data.setVar("BUILDSTART", time.strftime('%m/%d/%Y %H:%M:%S',time.gmtime()),self.configuration.data)
-
-        buildname = bb.data.getVar("BUILDNAME", self.configuration.data)
+        self.buildSetVars()
 
         if self.configuration.interactive:
             self.interactiveMode()
 
         if self.configuration.buildfile is not None:
-            bf = os.path.abspath( self.configuration.buildfile )
-            try:
-                os.stat(bf)
-            except OSError:
-                (filelist, masked) = self.collect_bbfiles()
-                regexp = re.compile(self.configuration.buildfile)
-                matches = []
-                for f in filelist:
-                    if regexp.search(f) and os.path.isfile(f):
-                        bf = f
-                        matches.append(f)
-                if len(matches) != 1:
-                    bb.msg.error(bb.msg.domain.Parsing, "Unable to match %s (%s matches found):" % (self.configuration.buildfile, len(matches)))
-                    for f in matches:
-                        bb.msg.error(bb.msg.domain.Parsing, "    %s" % f)
-                    sys.exit(1)
-                bf = matches[0]		    
-
-            bbfile_data = bb.parse.handle(bf, self.configuration.data)
-
-            # Remove stamp for target if force mode active
-            if self.configuration.force:
-                bb.msg.note(2, bb.msg.domain.RunQueue, "Remove stamp %s, %s" % (self.configuration.cmd, bf))
-                bb.build.del_stamp('do_%s' % self.configuration.cmd, bbfile_data)
-
-            item = bb.data.getVar('PN', bbfile_data, 1)
-            try:
-                self.tryBuildPackage(bf, item, self.configuration.cmd, bbfile_data, True)
-            except bb.build.EventException:
-                bb.msg.error(bb.msg.domain.Build,  "Build of '%s' failed" % item )
-
-            sys.exit( self.stats.show() )
+            return self.buildFile(self.configuration.buildfile)
 
         # initialise the parsing status now we know we will need deps
-        self.status = bb.cache.CacheData()
+        self.updateCache()
 
-        ignore = bb.data.getVar("ASSUME_PROVIDED", self.configuration.data, 1) or ""
-        self.status.ignored_dependencies = Set( ignore.split() )
-
-        self.handleCollections( bb.data.getVar("BBFILE_COLLECTIONS", self.configuration.data, 1) )
+        if self.configuration.parse_only:
+            bb.msg.note(1, bb.msg.domain.Collection, "Requested parsing .bb files only.  Exiting.")
+            return 0
 
         pkgs_to_build = self.configuration.pkgs_to_build
 
@@ -475,30 +509,7 @@ class BBCooker:
                 print "for usage information."
                 sys.exit(0)
 
-        # Import Psyco if available and not disabled
-        if not self.configuration.disable_psyco:
-            try:
-                import psyco
-            except ImportError:
-                bb.msg.note(1, bb.msg.domain.Collection, "Psyco JIT Compiler (http://psyco.sf.net) not available. Install it to increase performance.")
-            else:
-                psyco.bind( self.parse_bbfiles )
-        else:
-            bb.msg.note(1, bb.msg.domain.Collection, "You have disabled Psyco. This decreases performance.")
-
         try:
-            bb.msg.debug(1, bb.msg.domain.Collection, "collecting .bb files")
-            (filelist, masked) = self.collect_bbfiles()
-            self.parse_bbfiles(filelist, masked, self.myProgressCallback)
-            bb.msg.debug(1, bb.msg.domain.Collection, "parsing complete")
-            print
-            if self.configuration.parse_only:
-                bb.msg.note(1, bb.msg.domain.Collection, "Requested parsing .bb files only.  Exiting.")
-                return
-
-
-            self.buildDepgraph()
-
             if self.configuration.show_versions:
                 self.showVersions()
                 sys.exit( 0 )
@@ -512,34 +523,7 @@ class BBCooker:
                 self.generateDotGraph( pkgs_to_build, self.configuration.ignored_dot_deps )
                 sys.exit( 0 )
 
-            bb.event.fire(bb.event.BuildStarted(buildname, pkgs_to_build, self.configuration.event_data))
-
-            localdata = data.createCopy(self.configuration.data)
-            bb.data.update_data(localdata)
-            bb.data.expandKeys(localdata)
-
-            taskdata = bb.taskdata.TaskData(self.configuration.abort)
-
-            runlist = []
-            try:
-                for k in pkgs_to_build:
-                    taskdata.add_provider(localdata, self.status, k)
-                    runlist.append([k, "do_%s" % self.configuration.cmd])
-                taskdata.add_unresolved(localdata, self.status)
-            except bb.providers.NoProvider:
-                sys.exit(1)
-
-            rq = bb.runqueue.RunQueue()
-            rq.prepare_runqueue(self, self.configuration.data, self.status, taskdata, runlist)
-            try:
-                failures = rq.execute_runqueue(self, self.configuration.data, self.status, taskdata, runlist)
-            except runqueue.TaskFailure, fnids:
-                for fnid in fnids:
-                    bb.msg.error(bb.msg.domain.Build, "'%s' failed" % taskdata.fn_index[fnid])
-                sys.exit(1)
-            bb.event.fire(bb.event.BuildCompleted(buildname, pkgs_to_build, self.configuration.event_data, failures))
-
-            sys.exit( self.stats.show() )
+            return self.buildTargets(pkgs_to_build)
 
         except KeyboardInterrupt:
             bb.msg.note(1, bb.msg.domain.Collection, "KeyboardInterrupt - Build not completed.")
@@ -556,13 +540,17 @@ class BBCooker:
         return bbfiles
 
     def find_bbfiles( self, path ):
-        """Find all the .bb files in a directory (uses find)"""
-        findcmd = 'find ' + path + ' -name *.bb | grep -v SCCS/'
-        try:
-            finddata = os.popen(findcmd)
-        except OSError:
-            return []
-        return finddata.readlines()
+        """Find all the .bb files in a directory"""
+        from os.path import join
+
+        found = []
+        for dir, dirs, files in os.walk(path):
+            for ignored in ('SCCS', 'CVS', '.svn'):
+                if ignored in dirs:
+                    dirs.remove(ignored)
+            found += [join(dir,f) for f in files if f.endswith('.bb')]
+
+        return found
 
     def collect_bbfiles( self ):
         """Collect all available .bb build files"""
diff --git a/bitbake/lib/bb/event.py b/bitbake/lib/bb/event.py
index f1da98fd4..cfbda3e9f 100644
--- a/bitbake/lib/bb/event.py
+++ b/bitbake/lib/bb/event.py
@@ -23,14 +23,13 @@ BitBake build tools.
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 import os, re
-import bb.data
 import bb.utils
 
 class Event:
     """Base class for events"""
     type = "Event"
 
-    def __init__(self, d = bb.data.init()):
+    def __init__(self, d):
         self._data = d
 
     def getData(self):
@@ -129,7 +128,7 @@ def getName(e):
 class PkgBase(Event):
     """Base class for package events"""
 
-    def __init__(self, t, d = bb.data.init()):
+    def __init__(self, t, d):
         self._pkg = t
         Event.__init__(self, d)
 
diff --git a/bitbake/lib/bb/fetch/svn.py b/bitbake/lib/bb/fetch/svn.py
index 21be1412a..120f4f853 100644
--- a/bitbake/lib/bb/fetch/svn.py
+++ b/bitbake/lib/bb/fetch/svn.py
@@ -91,6 +91,12 @@ class Svn(Fetch):
         elif ud.date != "now":
             options.append("-r {%s}" % ud.date)
 
+        if ud.user:
+            options.append("--username %s" % ud.user)
+
+        if ud.pswd:
+            options.append("--password %s" % ud.pswd)
+
         localdata = data.createCopy(d)
         data.setVar('OVERRIDES', "svn:%s" % data.getVar('OVERRIDES', localdata), localdata)
         data.update_data(localdata)
diff --git a/bitbake/lib/bb/msg.py b/bitbake/lib/bb/msg.py
index bd7729731..71b0b05b7 100644
--- a/bitbake/lib/bb/msg.py
+++ b/bitbake/lib/bb/msg.py
@@ -23,7 +23,7 @@ Message handling infrastructure for bitbake
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 import sys, os, re, bb
-from bb import utils
+from bb import utils, event
 
 debug_level = {}
 
@@ -42,6 +42,29 @@ domain = bb.utils.Enum(
     'TaskData',
     'Util')
 
+
+class MsgBase(bb.event.Event):
+    """Base class for messages"""
+
+    def __init__(self, msg, d ):
+        self._message = msg
+        event.Event.__init__(self, d)
+
+class MsgDebug(MsgBase):
+    """Debug Message"""
+
+class MsgNote(MsgBase):
+    """Note Message"""
+
+class MsgWarn(MsgBase):
+    """Warning Message"""
+
+class MsgError(MsgBase):
+    """Error Message"""
+
+class MsgFatal(MsgBase):
+    """Fatal Message"""
+
 #
 # Message control functions
 #
@@ -71,6 +94,7 @@ def set_debug_domains(domains):
 
 def debug(level, domain, msg, fn = None):
     if debug_level[domain] >= level:
+        bb.event.fire(MsgDebug(msg, None))
         print 'DEBUG: ' + msg
 
 def note(level, domain, msg, fn = None):
@@ -91,17 +115,22 @@ def fatal(domain, msg, fn = None):
 #
 def std_debug(lvl, msg):
     if debug_level['default'] >= lvl:
+        bb.event.fire(MsgDebug(msg, None))
         print 'DEBUG: ' + msg
 
 def std_note(msg):
+    bb.event.fire(MsgNote(msg, None))
     print 'NOTE: ' + msg
 
 def std_warn(msg):
+    bb.event.fire(MsgWarn(msg, None))
     print 'WARNING: ' + msg
 
 def std_error(msg):
+    bb.event.fire(MsgError(msg, None))
     print 'ERROR: ' + msg
 
 def std_fatal(msg):
+    bb.event.fire(MsgFatal(msg, None))
     print 'ERROR: ' + msg
     sys.exit(1)
diff --git a/bitbake/lib/bb/parse/parse_py/ConfHandler.py b/bitbake/lib/bb/parse/parse_py/ConfHandler.py
index 1ae673079..0e05928d8 100644
--- a/bitbake/lib/bb/parse/parse_py/ConfHandler.py
+++ b/bitbake/lib/bb/parse/parse_py/ConfHandler.py
@@ -161,6 +161,12 @@ def handle(fn, data, include = 0):
     return data
 
 def feeder(lineno, s, fn, data):
+    def getFunc(groupd, key, data):
+        if 'flag' in groupd and groupd['flag'] != None:
+            return bb.data.getVarFlag(key, groupd['flag'], data)
+        else:
+            return bb.data.getVar(key, data)
+
     m = __config_regexp__.match(s)
     if m:
         groupd = m.groupdict()
@@ -168,19 +174,19 @@ def feeder(lineno, s, fn, data):
         if "exp" in groupd and groupd["exp"] != None:
             bb.data.setVarFlag(key, "export", 1, data)
         if "ques" in groupd and groupd["ques"] != None:
-            val = bb.data.getVar(key, data)
+            val = getFunc(groupd, key, data)
             if val == None:
                 val = groupd["value"]
         elif "colon" in groupd and groupd["colon"] != None:
             val = bb.data.expand(groupd["value"], data)
         elif "append" in groupd and groupd["append"] != None:
-            val = "%s %s" % ((bb.data.getVar(key, data) or ""), groupd["value"])
+            val = "%s %s" % ((getFunc(groupd, key, data) or ""), groupd["value"])
         elif "prepend" in groupd and groupd["prepend"] != None:
-            val = "%s %s" % (groupd["value"], (bb.data.getVar(key, data) or ""))
+            val = "%s %s" % (groupd["value"], (getFunc(groupd, key, data) or ""))
         elif "postdot" in groupd and groupd["postdot"] != None:
-            val = "%s%s" % ((bb.data.getVar(key, data) or ""), groupd["value"])
+            val = "%s%s" % ((getFunc(groupd, key, data) or ""), groupd["value"])
         elif "predot" in groupd and groupd["predot"] != None:
-            val = "%s%s" % (groupd["value"], (bb.data.getVar(key, data) or ""))
+            val = "%s%s" % (groupd["value"], (getFunc(groupd, key, data) or ""))
         else:
             val = groupd["value"]
         if 'flag' in groupd and groupd['flag'] != None:
diff --git a/bitbake/lib/bb/providers.py b/bitbake/lib/bb/providers.py
index fdd6cd10d..78f45122f 100644
--- a/bitbake/lib/bb/providers.py
+++ b/bitbake/lib/bb/providers.py
@@ -61,19 +61,27 @@ def findBestProvider(pn, cfgData, dataCache, pkg_pn = None, item = None):
 
     preferred_v = bb.data.getVar('PREFERRED_VERSION_%s' % pn, localdata, True)
     if preferred_v:
-        m = re.match('(.*)_(.*)', preferred_v)
+        m = re.match('(\d+:)*(.*)(_.*)*', preferred_v)
         if m:
-            preferred_v = m.group(1)
-            preferred_r = m.group(2)
+            if m.group(1):
+                preferred_e = int(m.group(1)[:-1])
+            else:
+                preferred_e = None
+            preferred_v = m.group(2)
+            if m.group(3):
+                preferred_r = m.group(3)[1:]
+            else:
+                preferred_r = None
         else:
+            preferred_e = None
             preferred_r = None
 
         for file_set in tmp_pn:
             for f in file_set:
-                pv,pr = dataCache.pkg_pvpr[f]
-                if preferred_v == pv and (preferred_r == pr or preferred_r == None):
+                pe,pv,pr = dataCache.pkg_pepvpr[f]
+                if preferred_v == pv and (preferred_r == pr or preferred_r == None) and (preferred_e == pe or preferred_e == None):
                     preferred_file = f
-                    preferred_ver = (pv, pr)
+                    preferred_ver = (pe, pv, pr)
                     break
             if preferred_file:
                 break;
@@ -81,6 +89,8 @@ def findBestProvider(pn, cfgData, dataCache, pkg_pn = None, item = None):
             pv_str = '%s-%s' % (preferred_v, preferred_r)
         else:
             pv_str = preferred_v
+        if not (preferred_e is None):
+            pv_str = '%s:%s' % (preferred_e, pv_str)
         itemstr = ""
         if item:
             itemstr = " (for item %s)" % item
@@ -97,11 +107,11 @@ def findBestProvider(pn, cfgData, dataCache, pkg_pn = None, item = None):
     latest_p = 0
     latest_f = None
     for file_name in files:
-        pv,pr = dataCache.pkg_pvpr[file_name]
+        pe,pv,pr = dataCache.pkg_pepvpr[file_name]
         dp = dataCache.pkg_dp[file_name]
 
-        if (latest is None) or ((latest_p == dp) and (utils.vercmp(latest, (pv, pr)) < 0)) or (dp > latest_p):
-            latest = (pv, pr)
+        if (latest is None) or ((latest_p == dp) and (utils.vercmp(latest, (pe, pv, pr)) < 0)) or (dp > latest_p):
+            latest = (pe, pv, pr)
             latest_f = file_name
             latest_p = dp
     if preferred_file is None:
@@ -110,10 +120,7 @@ def findBestProvider(pn, cfgData, dataCache, pkg_pn = None, item = None):
 
     return (latest,latest_f,preferred_ver, preferred_file)
 
-#
-# RP - build_cache_fail needs to move elsewhere
-#
-def filterProviders(providers, item, cfgData, dataCache, build_cache_fail = {}):
+def filterProviders(providers, item, cfgData, dataCache):
     """
     Take a list of providers and filter/reorder according to the 
     environment variables and previous build results
@@ -135,12 +142,6 @@ def filterProviders(providers, item, cfgData, dataCache, build_cache_fail = {}):
         preferred_versions[pn] = bb.providers.findBestProvider(pn, cfgData, dataCache, pkg_pn, item)[2:4]
         eligible.append(preferred_versions[pn][1])
 
-
-    for p in eligible:
-        if p in build_cache_fail:
-            bb.msg.debug(1, bb.msg.domain.Provider, "rejecting already-failed %s" % p)
-            eligible.remove(p)
-
     if len(eligible) == 0:
         bb.msg.error(bb.msg.domain.Provider, "no eligible providers for %s" % item)
         return 0
@@ -162,7 +163,7 @@ def filterProviders(providers, item, cfgData, dataCache, build_cache_fail = {}):
     # if so, bump it to the head of the queue
     for p in providers:
         pn = dataCache.pkg_fn[p]
-        pv, pr = dataCache.pkg_pvpr[p]
+        pe, pv, pr = dataCache.pkg_pepvpr[p]
 
         stamp = '%s.do_populate_staging' % dataCache.stamp[p]
         if os.path.exists(stamp):
@@ -171,7 +172,11 @@ def filterProviders(providers, item, cfgData, dataCache, build_cache_fail = {}):
                 # package was made ineligible by already-failed check
                 continue
             oldver = "%s-%s" % (pv, pr)
-            newver = '-'.join(newvers)
+            if pe > 0:
+                oldver = "%s:%s" % (pe, oldver)
+            newver = "%s-%s" % (newvers[1], newvers[2])
+            if newvers[0] > 0:
+                newver = "%s:%s" % (newvers[0], newver)
             if (newver != oldver):
                 extra_chat = "%s (%s) already staged but upgrading to %s to satisfy %s" % (pn, oldver, newver, item)
             else:
diff --git a/bitbake/lib/bb/runqueue.py b/bitbake/lib/bb/runqueue.py
index ec94b0f8b..059f800b6 100644
--- a/bitbake/lib/bb/runqueue.py
+++ b/bitbake/lib/bb/runqueue.py
@@ -25,20 +25,47 @@ Handles preparation and execution of a queue of tasks
 from bb import msg, data, fetch, event, mkdirhier, utils
 from sets import Set 
 import bb, os, sys
+import signal
 
 class TaskFailure(Exception):
     """Exception raised when a task in a runqueue fails"""
     def __init__(self, x): 
         self.args = x
 
+
+class RunQueueStats:
+    """
+    Holds statistics on the tasks handled by the associated runQueue
+    """
+    def __init__(self):
+        self.completed = 0
+        self.skipped = 0
+        self.failed = 0
+
+    def taskFailed(self):
+        self.failed = self.failed + 1
+
+    def taskCompleted(self):
+        self.completed = self.completed + 1
+
+    def taskSkipped(self):
+        self.skipped = self.skipped + 1
+
 class RunQueue:
     """
     BitBake Run Queue implementation
     """
-    def __init__(self):
+    def __init__(self, cooker, cfgData, dataCache, taskData, targets):
         self.reset_runqueue()
+        self.cooker = cooker
+        self.dataCache = dataCache
+        self.taskData = taskData
+        self.targets = targets
+
+        self.number_tasks = int(bb.data.getVar("BB_NUMBER_THREADS", cfgData) or 1)
 
     def reset_runqueue(self):
+
         self.runq_fnid = []
         self.runq_task = []
         self.runq_depends = []
@@ -46,16 +73,15 @@ class RunQueue:
         self.runq_weight = []
         self.prio_map = []
 
-    def get_user_idstring(self, task, taskData):
-        fn = taskData.fn_index[self.runq_fnid[task]]
+    def get_user_idstring(self, task):
+        fn = self.taskData.fn_index[self.runq_fnid[task]]
         taskname = self.runq_task[task]
         return "%s, %s" % (fn, taskname)
 
-    def prepare_runqueue(self, cooker, cfgData, dataCache, taskData, targets):
+    def prepare_runqueue(self):
         """
         Turn a set of taskData into a RunQueue and compute data needed 
         to optimise the execution order.
-        targets is list of paired values - a provider name and the task to run
         """
 
         depends = []
@@ -63,12 +89,14 @@ class RunQueue:
         runq_build = []
         runq_done = []
 
+        taskData = self.taskData
+
         bb.msg.note(1, bb.msg.domain.RunQueue, "Preparing Runqueue")
 
         for task in range(len(taskData.tasks_name)):
             fnid = taskData.tasks_fnid[task]
             fn = taskData.fn_index[fnid]
-            task_deps = dataCache.task_deps[fn]
+            task_deps = self.dataCache.task_deps[fn]
 
             if fnid not in taskData.failed_fnids:
 
@@ -94,6 +122,15 @@ class RunQueue:
                                 dep = taskData.fn_index[depdata]
                                 depends.append(taskData.gettask_id(dep, taskname))
 
+                idepends = taskData.tasks_idepends[task]
+                for idepend in idepends:
+                    depid = int(idepend.split(":")[0])
+                    if depid in taskData.build_targets:
+                        depdata = taskData.build_targets[depid][0]
+                        if depdata:
+                            dep = taskData.fn_index[depdata]
+                            depends.append(taskData.gettask_id(dep, idepend.split(":")[1]))
+
                 def add_recursive_build(depid):
                     """
                     Add build depends of depid to depends
@@ -197,7 +234,7 @@ class RunQueue:
             for depend in depends:
                 mark_active(depend, depth+1)
 
-        for target in targets:
+        for target in self.targets:
             targetid = taskData.getbuild_id(target[0])
 
             if targetid not in taskData.build_targets:
@@ -209,10 +246,10 @@ class RunQueue:
             fnid = taskData.build_targets[targetid][0]
 
             # Remove stamps for targets if force mode active
-            if cooker.configuration.force:
+            if self.cooker.configuration.force:
                 fn = taskData.fn_index[fnid]
                 bb.msg.note(2, bb.msg.domain.RunQueue, "Remove stamp %s, %s" % (target[1], fn))
-                bb.build.del_stamp(target[1], dataCache, fn)
+                bb.build.del_stamp(target[1], self.dataCache, fn)
 
             if fnid in taskData.failed_fnids:
                 continue
@@ -299,18 +336,18 @@ class RunQueue:
                     seen.append(taskid)
                     for revdep in self.runq_revdeps[taskid]:
                         if runq_done[revdep] == 0 and revdep not in seen and not finish:
-                            bb.msg.error(bb.msg.domain.RunQueue, "Task %s (%s) (depends: %s)" % (revdep, self.get_user_idstring(revdep, taskData), self.runq_depends[revdep]))
+                            bb.msg.error(bb.msg.domain.RunQueue, "Task %s (%s) (depends: %s)" % (revdep, self.get_user_idstring(revdep), self.runq_depends[revdep]))
                             if revdep in deps_seen:
-                                bb.msg.error(bb.msg.domain.RunQueue, "Chain ends at Task %s (%s)" % (revdep, self.get_user_idstring(revdep, taskData)))
+                                bb.msg.error(bb.msg.domain.RunQueue, "Chain ends at Task %s (%s)" % (revdep, self.get_user_idstring(revdep)))
                                 finish = True
                                 return
                             for dep in self.runq_depends[revdep]:
                                 deps_seen.append(dep)
                             print_chain(revdep, finish)
                 print_chain(task, False)
-                bb.msg.fatal(bb.msg.domain.RunQueue, "Task %s (%s) not processed!\nThis is probably a circular dependency (the chain might be printed above)." % (task, self.get_user_idstring(task, taskData)))
+                bb.msg.fatal(bb.msg.domain.RunQueue, "Task %s (%s) not processed!\nThis is probably a circular dependency (the chain might be printed above)." % (task, self.get_user_idstring(task)))
             if runq_weight1[task] != 0:
-                bb.msg.fatal(bb.msg.domain.RunQueue, "Task %s (%s) count not zero!" % (task, self.get_user_idstring(task, taskData)))
+                bb.msg.fatal(bb.msg.domain.RunQueue, "Task %s (%s) count not zero!" % (task, self.get_user_idstring(task)))
 
         # Make a weight sorted map
         from copy import deepcopy
@@ -328,7 +365,7 @@ class RunQueue:
 
         #self.dump_data(taskData)
 
-    def execute_runqueue(self, cooker, cfgData, dataCache, taskData, runlist):
+    def execute_runqueue(self):
         """
         Run the tasks in a queue prepared by prepare_runqueue
         Upon failure, optionally try to recover the build using any alternate providers
@@ -337,35 +374,86 @@ class RunQueue:
 
         failures = 0
         while 1:
-            failed_fnids = self.execute_runqueue_internal(cooker, cfgData, dataCache, taskData)
+            failed_fnids = []
+            try:
+                self.execute_runqueue_internal()
+            finally:
+                if self.master_process:
+                    failed_fnids = self.finish_runqueue()
             if len(failed_fnids) == 0:
                 return failures
-            if taskData.abort:
+            if self.taskData.abort:
                 raise bb.runqueue.TaskFailure(failed_fnids)
             for fnid in failed_fnids:
-                #print "Failure: %s %s %s" % (fnid, taskData.fn_index[fnid],  self.runq_task[fnid])
-                taskData.fail_fnid(fnid)
+                #print "Failure: %s %s %s" % (fnid, self.taskData.fn_index[fnid],  self.runq_task[fnid])
+                self.taskData.fail_fnid(fnid)
                 failures = failures + 1
             self.reset_runqueue()
-            self.prepare_runqueue(cooker, cfgData, dataCache, taskData, runlist)
+            self.prepare_runqueue()
+
+    def execute_runqueue_initVars(self):
+
+        self.stats = RunQueueStats()
+
+        self.active_builds = 0
+        self.runq_buildable = []
+        self.runq_running = []
+        self.runq_complete = []
+        self.build_pids = {}
+        self.failed_fnids = []
+        self.master_process = True
 
-    def execute_runqueue_internal(self, cooker, cfgData, dataCache, taskData):
+        # Mark initial buildable tasks
+        for task in range(len(self.runq_fnid)):
+            self.runq_running.append(0)
+            self.runq_complete.append(0)
+            if len(self.runq_depends[task]) == 0:
+                self.runq_buildable.append(1)
+            else:
+                self.runq_buildable.append(0)
+
+    def task_complete(self, task):
+        """
+        Mark a task as completed
+        Look at the reverse dependencies and mark any task with 
+        completed dependencies as buildable
+        """
+        self.runq_complete[task] = 1
+        for revdep in self.runq_revdeps[task]:
+            if self.runq_running[revdep] == 1:
+                continue
+            if self.runq_buildable[revdep] == 1:
+                continue
+            alldeps = 1
+            for dep in self.runq_depends[revdep]:
+                if self.runq_complete[dep] != 1:
+                    alldeps = 0
+            if alldeps == 1:
+                self.runq_buildable[revdep] = 1
+                fn = self.taskData.fn_index[self.runq_fnid[revdep]]
+                taskname = self.runq_task[revdep]
+                bb.msg.debug(1, bb.msg.domain.RunQueue, "Marking task %s (%s, %s) as buildable" % (revdep, fn, taskname))
+
+    def get_next_task(self):
+        """
+        Return the id of the highest priority task that is buildable
+        """
+        for task1 in range(len(self.runq_fnid)):
+            task = self.prio_map[task1]
+            if self.runq_running[task] == 1:
+                continue
+            if self.runq_buildable[task] == 1:
+                return task
+        return None
+
+    def execute_runqueue_internal(self):
         """
         Run the tasks in a queue prepared by prepare_runqueue
         """
-        import signal
 
         bb.msg.note(1, bb.msg.domain.RunQueue, "Executing runqueue")
 
-        active_builds = 0
-        tasks_completed = 0
-        tasks_skipped = 0
-
-        runq_buildable = []
-        runq_running = []
-        runq_complete = []
-        build_pids = {}
-        failed_fnids = []
+        self.execute_runqueue_initVars()
 
         if len(self.runq_fnid) == 0:
             # nothing to do
@@ -374,144 +462,103 @@ class RunQueue:
         def sigint_handler(signum, frame):
             raise KeyboardInterrupt
 
-        def get_next_task(data):
-            """
-            Return the id of the highest priority task that is buildable
-            """
-            for task1 in range(len(data.runq_fnid)):
-                task = data.prio_map[task1]
-                if runq_running[task] == 1:
+        while True:
+            task = self.get_next_task()
+            if task is not None:
+                fn = self.taskData.fn_index[self.runq_fnid[task]]
+
+                taskname = self.runq_task[task]
+                if bb.build.stamp_is_current(taskname, self.dataCache, fn):
+                    bb.msg.debug(2, bb.msg.domain.RunQueue, "Stamp current task %s (%s)" % (task, self.get_user_idstring(task)))
+                    self.runq_running[task] = 1
+                    self.task_complete(task)
+                    self.stats.taskCompleted()
+                    self.stats.taskSkipped()
                     continue
-                if runq_buildable[task] == 1:
-                    return task
-            return None
 
-        def task_complete(data, task):
-            """
-            Mark a task as completed
-            Look at the reverse dependencies and mark any task with 
-            completed dependencies as buildable
-            """
-            runq_complete[task] = 1
-            for revdep in data.runq_revdeps[task]:
-                if runq_running[revdep] == 1:
-                    continue
-                if runq_buildable[revdep] == 1:
+                bb.msg.note(1, bb.msg.domain.RunQueue, "Running task %d of %d (ID: %s, %s)" % (self.stats.completed + self.active_builds + 1, len(self.runq_fnid), task, self.get_user_idstring(task)))
+                try: 
+                    pid = os.fork() 
+                except OSError, e: 
+                    bb.msg.fatal(bb.msg.domain.RunQueue, "fork failed: %d (%s)" % (e.errno, e.strerror))
+                if pid == 0:
+                    # Bypass master process' handling
+                    self.master_process = False
+                    # Stop Ctrl+C being sent to children
+                    # signal.signal(signal.SIGINT, signal.SIG_IGN)
+                    # Make the child the process group leader
+                    os.setpgid(0, 0)
+                    sys.stdin = open('/dev/null', 'r')
+                    self.cooker.configuration.cmd = taskname[3:]
+                    try: 
+                        self.cooker.tryBuild(fn, False)
+                    except bb.build.EventException:
+                        bb.msg.error(bb.msg.domain.Build, "Build of " + fn + " " + taskname + " failed")
+                        sys.exit(1)
+                    except:
+                        bb.msg.error(bb.msg.domain.Build, "Build of " + fn + " " + taskname + " failed")
+                        raise
+                    sys.exit(0)
+                self.build_pids[pid] = task
+                self.runq_running[task] = 1
+                self.active_builds = self.active_builds + 1
+                if self.active_builds < self.number_tasks:
                     continue
-                alldeps = 1
-                for dep in data.runq_depends[revdep]:
-                    if runq_complete[dep] != 1:
-                        alldeps = 0
-                if alldeps == 1:
-                    runq_buildable[revdep] = 1
-                    fn = taskData.fn_index[self.runq_fnid[revdep]]
-                    taskname = self.runq_task[revdep]
-                    bb.msg.debug(1, bb.msg.domain.RunQueue, "Marking task %s (%s, %s) as buildable" % (revdep, fn, taskname))
-
-        # Mark initial buildable tasks
-        for task in range(len(self.runq_fnid)):
-            runq_running.append(0)
-            runq_complete.append(0)
-            if len(self.runq_depends[task]) == 0:
-                runq_buildable.append(1)
-            else:
-                runq_buildable.append(0)
-
-
-        number_tasks = int(bb.data.getVar("BB_NUMBER_THREADS", cfgData) or 1)
+            if self.active_builds > 0:
+                result = os.waitpid(-1, 0)
+                self.active_builds = self.active_builds - 1
+                task = self.build_pids[result[0]]
+                if result[1] != 0:
+                    del self.build_pids[result[0]]
+                    bb.msg.error(bb.msg.domain.RunQueue, "Task %s (%s) failed" % (task, self.get_user_idstring(task)))
+                    self.failed_fnids.append(self.runq_fnid[task])
+                    self.stats.taskFailed()
+                    break
+                self.task_complete(task)
+                self.stats.taskCompleted()
+                del self.build_pids[result[0]]
+                continue
+            return
 
+    def finish_runqueue(self):
         try:
-            while 1:
-                task = get_next_task(self)
-                if task is not None:
-                    fn = taskData.fn_index[self.runq_fnid[task]]
-                    taskname = self.runq_task[task]
-
-                    if bb.build.stamp_is_current(taskname, dataCache, fn):
-                        bb.msg.debug(2, bb.msg.domain.RunQueue, "Stamp current task %s (%s)" % (task, self.get_user_idstring(task, taskData)))
-                        runq_running[task] = 1
-                        task_complete(self, task)
-                        tasks_completed = tasks_completed + 1
-                        tasks_skipped = tasks_skipped + 1
-                        continue
-
-                    bb.msg.note(1, bb.msg.domain.RunQueue, "Running task %d of %d (ID: %s, %s)" % (tasks_completed + active_builds + 1, len(self.runq_fnid), task, self.get_user_idstring(task, taskData)))
-                    try: 
-                        pid = os.fork() 
-                    except OSError, e: 
-                        bb.msg.fatal(bb.msg.domain.RunQueue, "fork failed: %d (%s)" % (e.errno, e.strerror))
-                    if pid == 0:
-                        # Bypass finally below
-                        active_builds = 0 
-                        # Stop Ctrl+C being sent to children
-                        # signal.signal(signal.SIGINT, signal.SIG_IGN)
-                        # Make the child the process group leader
-                        os.setpgid(0, 0)
-                        sys.stdin = open('/dev/null', 'r')
-                        cooker.configuration.cmd = taskname[3:]
-                        try: 
-                            cooker.tryBuild(fn, False)
-                        except bb.build.EventException:
-                            bb.msg.error(bb.msg.domain.Build, "Build of " + fn + " " + taskname + " failed")
-                            sys.exit(1)
-                        except:
-                            bb.msg.error(bb.msg.domain.Build, "Build of " + fn + " " + taskname + " failed")
-                            raise
-                        sys.exit(0)
-                    build_pids[pid] = task
-                    runq_running[task] = 1
-                    active_builds = active_builds + 1
-                    if active_builds < number_tasks:
-                        continue
-                if active_builds > 0:
-                    result = os.waitpid(-1, 0)
-                    active_builds = active_builds - 1
-                    task = build_pids[result[0]]
-                    if result[1] != 0:
-                        del build_pids[result[0]]
-                        bb.msg.error(bb.msg.domain.RunQueue, "Task %s (%s) failed" % (task, self.get_user_idstring(task, taskData)))
-                        failed_fnids.append(self.runq_fnid[task])
-                        break
-                    task_complete(self, task)
-                    tasks_completed = tasks_completed + 1
-                    del build_pids[result[0]]
-                    continue
-                break
-        finally:
-            try:
-                while active_builds > 0:
-                    bb.msg.note(1, bb.msg.domain.RunQueue, "Waiting for %s active tasks to finish" % active_builds)
-                    tasknum = 1
-                    for k, v in build_pids.iteritems():
-                         bb.msg.note(1, bb.msg.domain.RunQueue, "%s: %s (%s)" % (tasknum, self.get_user_idstring(v, taskData), k))
-                         tasknum = tasknum + 1
-                    result = os.waitpid(-1, 0)
-                    task = build_pids[result[0]]
-                    if result[1] != 0:
-                         bb.msg.error(bb.msg.domain.RunQueue, "Task %s (%s) failed" % (task, self.get_user_idstring(task, taskData)))
-                         failed_fnids.append(self.runq_fnid[task])
-                    del build_pids[result[0]]
-                    active_builds = active_builds - 1
-                if len(failed_fnids) > 0:
-                    return failed_fnids
-            except:
-                bb.msg.note(1, bb.msg.domain.RunQueue, "Sending SIGINT to remaining %s tasks" % active_builds)
-                for k, v in build_pids.iteritems():
+            while self.active_builds > 0:
+                bb.msg.note(1, bb.msg.domain.RunQueue, "Waiting for %s active tasks to finish" % self.active_builds)
+                tasknum = 1
+                for k, v in self.build_pids.iteritems():
+                     bb.msg.note(1, bb.msg.domain.RunQueue, "%s: %s (%s)" % (tasknum, self.get_user_idstring(v), k))
+                     tasknum = tasknum + 1
+                result = os.waitpid(-1, 0)
+                task = self.build_pids[result[0]]
+                if result[1] != 0:
+                     bb.msg.error(bb.msg.domain.RunQueue, "Task %s (%s) failed" % (task, self.get_user_idstring(task)))
+                     self.failed_fnids.append(self.runq_fnid[task])
+                     self.stats.taskFailed()
+                del self.build_pids[result[0]]
+                self.active_builds = self.active_builds - 1
+            if len(self.failed_fnids) > 0:
+                return self.failed_fnids
+        except KeyboardInterrupt:
+            bb.msg.note(1, bb.msg.domain.RunQueue, "Sending SIGINT to remaining %s tasks" % self.active_builds)
+            for k, v in self.build_pids.iteritems():
+                 try:
                      os.kill(-k, signal.SIGINT)
-                raise
+                 except:
+                     pass
+            raise
 
         # Sanity Checks
         for task in range(len(self.runq_fnid)):
-            if runq_buildable[task] == 0:
+            if self.runq_buildable[task] == 0:
                 bb.msg.error(bb.msg.domain.RunQueue, "Task %s never buildable!" % task)
-            if runq_running[task] == 0:
+            if self.runq_running[task] == 0:
                 bb.msg.error(bb.msg.domain.RunQueue, "Task %s never ran!" % task)
-            if runq_complete[task] == 0:
+            if self.runq_complete[task] == 0:
                 bb.msg.error(bb.msg.domain.RunQueue, "Task %s never completed!" % task)
 
-        bb.msg.note(1, bb.msg.domain.RunQueue, "Tasks Summary: Attempted %d tasks of which %d didn't need to be rerun and %d failed." % (tasks_completed, tasks_skipped, len(failed_fnids)))
+        bb.msg.note(1, bb.msg.domain.RunQueue, "Tasks Summary: Attempted %d tasks of which %d didn't need to be rerun and %d failed." % (self.stats.completed, self.stats.skipped, self.stats.failed))
 
-        return failed_fnids
+        return self.failed_fnids
 
     def dump_data(self, taskQueue):
         """
diff --git a/bitbake/lib/bb/shell.py b/bitbake/lib/bb/shell.py
index 32a773064..fc213c3f4 100644
--- a/bitbake/lib/bb/shell.py
+++ b/bitbake/lib/bb/shell.py
@@ -104,10 +104,11 @@ class BitBakeShellCommands:
 
     def _findProvider( self, item ):
         self._checkParsed()
+        # Need to use taskData for this information
         preferred = data.getVar( "PREFERRED_PROVIDER_%s" % item, cooker.configuration.data, 1 )
         if not preferred: preferred = item
         try:
-            lv, lf, pv, pf = Providers.findBestProvider(preferred, cooker.configuration.data, cooker.status, cooker.build_cache_fail)
+            lv, lf, pv, pf = Providers.findBestProvider(preferred, cooker.configuration.data, cooker.status)
         except KeyError:
             if item in cooker.status.providers:
                 pf = cooker.status.providers[item][0]
@@ -144,6 +145,7 @@ class BitBakeShellCommands:
 
     def build( self, params, cmd = "build" ):
         """Build a providee"""
+        global last_exception
         globexpr = params[0]
         self._checkParsed()
         names = globfilter( cooker.status.pkg_pn.keys(), globexpr )
@@ -152,8 +154,6 @@ class BitBakeShellCommands:
 
         oldcmd = cooker.configuration.cmd
         cooker.configuration.cmd = cmd
-        cooker.build_cache = []
-        cooker.build_cache_fail = []
 
         td = taskdata.TaskData(cooker.configuration.abort)
 
@@ -170,24 +170,21 @@ class BitBakeShellCommands:
 
             td.add_unresolved(cooker.configuration.data, cooker.status)
             
-            rq = runqueue.RunQueue()
-            rq.prepare_runqueue(cooker, cooker.configuration.data, cooker.status, td, tasks)
-            rq.execute_runqueue(cooker, cooker.configuration.data, cooker.status, td, tasks)
+            rq = runqueue.RunQueue(cooker, cooker.configuration.data, cooker.status, td, tasks)
+            rq.prepare_runqueue()
+            rq.execute_runqueue()
 
         except Providers.NoProvider:
             print "ERROR: No Provider"
-            global last_exception
             last_exception = Providers.NoProvider
 
         except runqueue.TaskFailure, fnids:
             for fnid in fnids:
                 print "ERROR: '%s' failed" % td.fn_index[fnid]
-            global last_exception
             last_exception = runqueue.TaskFailure
 
         except build.EventException, e:
             print "ERROR: Couldn't build '%s'" % names
-            global last_exception
             last_exception = e
 
         cooker.configuration.cmd = oldcmd
@@ -236,14 +233,13 @@ class BitBakeShellCommands:
 
     def fileBuild( self, params, cmd = "build" ):
         """Parse and build a .bb file"""
+        global last_exception
         name = params[0]
         bf = completeFilePath( name )
         print "SHELL: Calling '%s' on '%s'" % ( cmd, bf )
 
         oldcmd = cooker.configuration.cmd
         cooker.configuration.cmd = cmd
-        cooker.build_cache = []
-        cooker.build_cache_fail = []
 
         thisdata = copy.deepcopy( initdata )
         # Caution: parse.handle modifies thisdata, hence it would
@@ -266,7 +262,6 @@ class BitBakeShellCommands:
                 cooker.tryBuildPackage( os.path.abspath( bf ), item, cmd, bbfile_data, True )
             except build.EventException, e:
                 print "ERROR: Couldn't build '%s'" % name
-                global last_exception
                 last_exception = e
 
         cooker.configuration.cmd = oldcmd
@@ -537,8 +532,6 @@ SRC_URI = ""
     def status( self, params ):
         """<just for testing>"""
         print "-" * 78
-        print "build cache = '%s'" % cooker.build_cache
-        print "build cache fail = '%s'" % cooker.build_cache_fail
         print "building list = '%s'" % cooker.building_list
         print "build path = '%s'" % cooker.build_path
         print "consider_msgs_cache = '%s'" % cooker.consider_msgs_cache
@@ -557,6 +550,7 @@ SRC_URI = ""
 
     def which( self, params ):
         """Computes the providers for a given providee"""
+        # Need to use taskData for this information
         item = params[0]
 
         self._checkParsed()
@@ -565,8 +559,7 @@ SRC_URI = ""
         if not preferred: preferred = item
 
         try:
-            lv, lf, pv, pf = Providers.findBestProvider(preferred, cooker.configuration.data, cooker.status, 
-cooker.build_cache_fail)
+            lv, lf, pv, pf = Providers.findBestProvider(preferred, cooker.configuration.data, cooker.status)
         except KeyError:
             lv, lf, pv, pf = (None,)*4
 
diff --git a/bitbake/lib/bb/taskdata.py b/bitbake/lib/bb/taskdata.py
index 17d6d9553..3d3adfdbd 100644
--- a/bitbake/lib/bb/taskdata.py
+++ b/bitbake/lib/bb/taskdata.py
@@ -43,6 +43,7 @@ class TaskData:
         self.tasks_fnid = []
         self.tasks_name = []
         self.tasks_tdepends = []
+        self.tasks_idepends = []
         # Cache to speed up task ID lookups
         self.tasks_lookup = {}
 
@@ -108,6 +109,7 @@ class TaskData:
         self.tasks_name.append(task)
         self.tasks_fnid.append(fnid)
         self.tasks_tdepends.append([])
+        self.tasks_idepends.append([])
 
         listid = len(self.tasks_name) - 1
 
@@ -134,8 +136,9 @@ class TaskData:
         if fnid in self.tasks_fnid:
             return
 
-        # Work out task dependencies
         for task in task_graph.allnodes():
+
+            # Work out task dependencies
             parentids = []
             for dep in task_graph.getparents(task):
                 parentid = self.gettask_id(fn, dep)
@@ -143,6 +146,14 @@ class TaskData:
             taskid = self.gettask_id(fn, task)
             self.tasks_tdepends[taskid].extend(parentids)
 
+            # Touch all intertask dependencies
+            if 'depends' in task_deps and task in task_deps['depends']:
+                ids = []
+                for dep in task_deps['depends'][task].split(" "):
+                    if dep:
+                        ids.append(str(self.getbuild_id(dep.split(":")[0])) + ":" + dep.split(":")[1])
+                self.tasks_idepends[taskid].extend(ids)
+
         # Work out build dependencies
         if not fnid in self.depids:
             dependids = {}
diff --git a/bitbake/lib/bb/utils.py b/bitbake/lib/bb/utils.py
index 411f43a10..c2884f263 100644
--- a/bitbake/lib/bb/utils.py
+++ b/bitbake/lib/bb/utils.py
@@ -62,10 +62,12 @@ def vercmp_part(a, b):
             return -1
 
 def vercmp(ta, tb):
-    (va, ra) = ta
-    (vb, rb) = tb
+    (ea, va, ra) = ta
+    (eb, vb, rb) = tb
 
-    r = vercmp_part(va, vb)
+    r = int(ea)-int(eb)
+    if (r == 0):
+        r = vercmp_part(va, vb)
     if (r == 0):
         r = vercmp_part(ra, rb)
     return r