diff --git a/poky/bitbake/lib/bb/__init__.py b/poky/bitbake/lib/bb/__init__.py
index e01b8d5..506f74d 100644
--- a/poky/bitbake/lib/bb/__init__.py
+++ b/poky/bitbake/lib/bb/__init__.py
@@ -9,7 +9,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 #
 
-__version__ = "1.53.0"
+__version__ = "1.53.1"
 
 import sys
 if sys.version_info < (3, 6, 0):
@@ -71,6 +71,13 @@
     def verbnote(self, msg, *args, **kwargs):
         return self.log(logging.INFO + 2, msg, *args, **kwargs)
 
+    def warnonce(self, msg, *args, **kwargs):
+        return self.log(logging.WARNING - 1, msg, *args, **kwargs)
+
+    def erroronce(self, msg, *args, **kwargs):
+        return self.log(logging.ERROR - 1, msg, *args, **kwargs)
+
+
 Logger = logging.getLoggerClass()
 class BBLogger(Logger, BBLoggerMixin):
     def __init__(self, name, *args, **kwargs):
@@ -157,9 +164,15 @@
 def warn(*args):
     mainlogger.warning(''.join(args))
 
+def warnonce(*args):
+    mainlogger.warnonce(''.join(args))
+
 def error(*args, **kwargs):
     mainlogger.error(''.join(args), extra=kwargs)
 
+def erroronce(*args):
+    mainlogger.erroronce(''.join(args))
+
 def fatal(*args, **kwargs):
     mainlogger.critical(''.join(args), extra=kwargs)
     raise BBHandledException()
diff --git a/poky/bitbake/lib/bb/asyncrpc/__init__.py b/poky/bitbake/lib/bb/asyncrpc/__init__.py
index b2bec31..c2f2b3c 100644
--- a/poky/bitbake/lib/bb/asyncrpc/__init__.py
+++ b/poky/bitbake/lib/bb/asyncrpc/__init__.py
@@ -28,4 +28,4 @@
 
 
 from .client import AsyncClient, Client
-from .serv import AsyncServer, AsyncServerConnection
+from .serv import AsyncServer, AsyncServerConnection, ClientError, ServerError
diff --git a/poky/bitbake/lib/bb/cooker.py b/poky/bitbake/lib/bb/cooker.py
index 08e45e7..0133a32 100644
--- a/poky/bitbake/lib/bb/cooker.py
+++ b/poky/bitbake/lib/bb/cooker.py
@@ -199,7 +199,7 @@
 
         self.inotify_modified_files = []
 
-        def _process_inotify_updates(server, cooker, abort):
+        def _process_inotify_updates(server, cooker, halt):
             cooker.process_inotify_updates()
             return 1.0
 
@@ -505,7 +505,7 @@
             logger.debug("Base environment change, triggering reparse")
             self.reset()
 
-    def runCommands(self, server, data, abort):
+    def runCommands(self, server, data, halt):
         """
         Run any queued asynchronous command
         This is done by the idle handler so it runs in true context rather than
@@ -578,7 +578,7 @@
                 if pkgs_to_build[0] in set(ignore.split()):
                     bb.fatal("%s is in ASSUME_PROVIDED" % pkgs_to_build[0])
 
-                taskdata, runlist = self.buildTaskData(pkgs_to_build, None, self.configuration.abort, allowincomplete=True)
+                taskdata, runlist = self.buildTaskData(pkgs_to_build, None, self.configuration.halt, allowincomplete=True)
 
                 mc = runlist[0][0]
                 fn = runlist[0][3]
@@ -607,7 +607,7 @@
             data.emit_env(env, envdata, True)
             logger.plain(env.getvalue())
 
-        # emit the metadata which isnt valid shell
+        # emit the metadata which isn't valid shell
         for e in sorted(envdata.keys()):
             if envdata.getVarFlag(e, 'func', False) and envdata.getVarFlag(e, 'python', False):
                 logger.plain("\npython %s () {\n%s}\n", e, envdata.getVar(e, False))
@@ -616,7 +616,7 @@
             self.disableDataTracking()
             self.reset()
 
-    def buildTaskData(self, pkgs_to_build, task, abort, allowincomplete=False):
+    def buildTaskData(self, pkgs_to_build, task, halt, allowincomplete=False):
         """
         Prepare a runqueue and taskdata object for iteration over pkgs_to_build
         """
@@ -663,7 +663,7 @@
         localdata = {}
 
         for mc in self.multiconfigs:
-            taskdata[mc] = bb.taskdata.TaskData(abort, skiplist=self.skiplist, allowincomplete=allowincomplete)
+            taskdata[mc] = bb.taskdata.TaskData(halt, skiplist=self.skiplist, allowincomplete=allowincomplete)
             localdata[mc] = data.createCopy(self.databuilder.mcdata[mc])
             bb.data.expandKeys(localdata[mc])
 
@@ -737,7 +737,7 @@
         Prepare a runqueue and taskdata object for iteration over pkgs_to_build
         """
 
-        # We set abort to False here to prevent unbuildable targets raising
+        # We set halt to False here to prevent unbuildable targets raising
         # an exception when we're just generating data
         taskdata, runlist = self.buildTaskData(pkgs_to_build, task, False, allowincomplete=True)
 
@@ -1425,7 +1425,7 @@
 
         # Setup taskdata structure
         taskdata = {}
-        taskdata[mc] = bb.taskdata.TaskData(self.configuration.abort)
+        taskdata[mc] = bb.taskdata.TaskData(self.configuration.halt)
         taskdata[mc].add_provider(self.databuilder.mcdata[mc], self.recipecaches[mc], item)
 
         if quietlog:
@@ -1441,11 +1441,11 @@
 
         rq = bb.runqueue.RunQueue(self, self.data, self.recipecaches, taskdata, runlist)
 
-        def buildFileIdle(server, rq, abort):
+        def buildFileIdle(server, rq, halt):
 
             msg = None
             interrupted = 0
-            if abort or self.state == state.forceshutdown:
+            if halt or self.state == state.forceshutdown:
                 rq.finish_runqueue(True)
                 msg = "Forced shutdown"
                 interrupted = 2
@@ -1487,10 +1487,10 @@
         Attempt to build the targets specified
         """
 
-        def buildTargetsIdle(server, rq, abort):
+        def buildTargetsIdle(server, rq, halt):
             msg = None
             interrupted = 0
-            if abort or self.state == state.forceshutdown:
+            if halt or self.state == state.forceshutdown:
                 rq.finish_runqueue(True)
                 msg = "Forced shutdown"
                 interrupted = 2
@@ -1533,7 +1533,7 @@
 
         bb.event.fire(bb.event.BuildInit(packages), self.data)
 
-        taskdata, runlist = self.buildTaskData(targets, task, self.configuration.abort)
+        taskdata, runlist = self.buildTaskData(targets, task, self.configuration.halt)
 
         buildname = self.data.getVar("BUILDNAME", False)
 
@@ -1763,7 +1763,7 @@
     def __init__(self, priorities, mc=''):
         self.mc = mc
         self.bbappends = []
-        # Priorities is a list of tupples, with the second element as the pattern.
+        # Priorities is a list of tuples, with the second element as the pattern.
         # We need to sort the list with the longest pattern first, and so on to
         # the shortest.  This allows nested layers to be properly evaluated.
         self.bbfile_config_priorities = sorted(priorities, key=lambda tup: tup[1], reverse=True)
@@ -2167,6 +2167,8 @@
                                             self.total)
 
             bb.event.fire(event, self.cfgdata)
+        else:
+            bb.error("Parsing halted due to errors")
 
         for process in self.processes:
             self.parser_quit.put(None)
@@ -2257,7 +2259,7 @@
             return False
         except bb.BBHandledException as exc:
             self.error += 1
-            logger.error('Failed to parse recipe: %s' % exc.recipe)
+            logger.debug('Failed to parse recipe: %s' % exc.recipe)
             self.shutdown(clean=False, force=True)
             return False
         except ParsingFailure as exc:
diff --git a/poky/bitbake/lib/bb/cookerdata.py b/poky/bitbake/lib/bb/cookerdata.py
index 397b43d..fe5696c 100644
--- a/poky/bitbake/lib/bb/cookerdata.py
+++ b/poky/bitbake/lib/bb/cookerdata.py
@@ -57,7 +57,7 @@
 
     def updateToServer(self, server, environment):
         options = {}
-        for o in ["abort", "force", "invalidate_stamp",
+        for o in ["halt", "force", "invalidate_stamp",
                   "dry_run", "dump_signatures",
                   "extra_assume_provided", "profile",
                   "prefile", "postfile", "server_timeout",
@@ -124,7 +124,7 @@
         self.prefile = []
         self.postfile = []
         self.cmd = None
-        self.abort = True
+        self.halt = True
         self.force = False
         self.profile = False
         self.nosetscene = False
@@ -247,6 +247,9 @@
         self.savedenv = bb.data.init()
         for k in cookercfg.env:
             self.savedenv.setVar(k, cookercfg.env[k])
+            if k in bb.data_smart.bitbake_renamed_vars:
+                bb.error('Variable %s from the shell environment has been renamed to %s' % (k, bb.data_smart.bitbake_renamed_vars[k]))
+                bb.fatal("Exiting to allow enviroment variables to be corrected")
 
         filtered_keys = bb.utils.approved_variables()
         bb.data.inheritFromOS(self.basedata, self.savedenv, filtered_keys)
@@ -258,12 +261,12 @@
         self.data = self.basedata
         self.mcdata = {}
 
-    def parseBaseConfiguration(self):
+    def parseBaseConfiguration(self, worker=False):
         data_hash = hashlib.sha256()
         try:
             self.data = self.parseConfigurationFiles(self.prefiles, self.postfiles)
 
-            if self.data.getVar("BB_WORKERCONTEXT", False) is None:
+            if self.data.getVar("BB_WORKERCONTEXT", False) is None and not worker:
                 bb.fetch.fetcher_init(self.data)
             bb.parse.init_parser(self.data)
             bb.codeparser.parser_cache_init(self.data)
@@ -307,6 +310,26 @@
             logger.exception("Error parsing configuration files")
             raise bb.BBHandledException()
 
+
+        # Handle obsolete variable names
+        d = self.data
+        renamedvars = d.getVarFlags('BB_RENAMED_VARIABLES') or {}
+        renamedvars.update(bb.data_smart.bitbake_renamed_vars)
+        issues = False
+        for v in renamedvars:
+            if d.getVar(v) != None or d.hasOverrides(v):
+                issues = True
+                loginfo = {}
+                history = d.varhistory.get_variable_refs(v)
+                for h in history:
+                    for line in history[h]:
+                        loginfo = {'file' : h, 'line' : line}
+                        bb.data.data_smart._print_rename_error(v, loginfo, renamedvars)
+                if not history:
+                    bb.data.data_smart._print_rename_error(v, loginfo, renamedvars)
+        if issues:
+            raise bb.BBHandledException()
+
         # Create a copy so we can reset at a later date when UIs disconnect
         self.origdata = self.data
         self.data = bb.data.createCopy(self.origdata)
@@ -428,7 +451,7 @@
         for bbclass in bbclasses:
             data = _inherit(bbclass, data)
 
-        # Nomally we only register event handlers at the end of parsing .bb files
+        # Normally we only register event handlers at the end of parsing .bb files
         # We register any handlers we've found so far here...
         for var in data.getVar('__BBHANDLERS', False) or []:
             handlerfn = data.getVarFlag(var, "filename", False)
diff --git a/poky/bitbake/lib/bb/daemonize.py b/poky/bitbake/lib/bb/daemonize.py
index 40fabd0..4957bfd 100644
--- a/poky/bitbake/lib/bb/daemonize.py
+++ b/poky/bitbake/lib/bb/daemonize.py
@@ -82,7 +82,7 @@
             sys.stdout = so
 
         # Have stdout and stderr be the same so log output matches chronologically
-        # and there aren't two seperate buffers
+        # and there aren't two separate buffers
         sys.stderr = sys.stdout
 
         try:
diff --git a/poky/bitbake/lib/bb/data.py b/poky/bitbake/lib/bb/data.py
index ee5557a..5d02bab 100644
--- a/poky/bitbake/lib/bb/data.py
+++ b/poky/bitbake/lib/bb/data.py
@@ -369,7 +369,7 @@
     #bb.note("Variable %s references %s and calls %s" % (key, str(deps), str(execs)))
     #d.setVarFlag(key, "vardeps", deps)
 
-def generate_dependencies(d, whitelist):
+def generate_dependencies(d, ignored_vars):
 
     keys = set(key for key in d if not key.startswith("__"))
     shelldeps = set(key for key in d.getVar("__exportlist", False) if d.getVarFlag(key, "export", False) and not d.getVarFlag(key, "unexport", False))
@@ -384,7 +384,7 @@
         newdeps = deps[task]
         seen = set()
         while newdeps:
-            nextdeps = newdeps - whitelist
+            nextdeps = newdeps - ignored_vars
             seen |= nextdeps
             newdeps = set()
             for dep in nextdeps:
@@ -395,7 +395,7 @@
         #print "For %s: %s" % (task, str(deps[task]))
     return tasklist, deps, values
 
-def generate_dependency_hash(tasklist, gendeps, lookupcache, whitelist, fn):
+def generate_dependency_hash(tasklist, gendeps, lookupcache, ignored_vars, fn):
     taskdeps = {}
     basehash = {}
 
@@ -408,7 +408,7 @@
         else:
             data = [data]
 
-        gendeps[task] -= whitelist
+        gendeps[task] -= ignored_vars
         newdeps = gendeps[task]
         seen = set()
         while newdeps:
@@ -416,9 +416,9 @@
             seen |= nextdeps
             newdeps = set()
             for dep in nextdeps:
-                if dep in whitelist:
+                if dep in ignored_vars:
                     continue
-                gendeps[dep] -= whitelist
+                gendeps[dep] -= ignored_vars
                 newdeps |= gendeps[dep]
             newdeps -= seen
 
diff --git a/poky/bitbake/lib/bb/data_smart.py b/poky/bitbake/lib/bb/data_smart.py
index 543372d..8d3825f 100644
--- a/poky/bitbake/lib/bb/data_smart.py
+++ b/poky/bitbake/lib/bb/data_smart.py
@@ -33,6 +33,18 @@
 __whitespace_split__ = re.compile(r'(\s)')
 __override_regexp__ = re.compile(r'[a-z0-9]+')
 
+bitbake_renamed_vars = {
+    "BB_ENV_WHITELIST": "BB_ENV_PASSTHROUGH",
+    "BB_ENV_EXTRAWHITE": "BB_ENV_PASSTHROUGH_ADDITIONS",
+    "BB_HASHBASE_WHITELIST": "BB_BASEHASH_IGNORE_VARS",
+    "BB_HASHCONFIG_WHITELIST": "BB_HASHCONFIG_IGNORE_VARS",
+    "BB_HASHTASK_WHITELIST": "BB_TASKHASH_IGNORE_TASKS",
+    "BB_SETSCENE_ENFORCE_WHITELIST": "BB_SETSCENE_ENFORCE_IGNORE_TASKS",
+    "MULTI_PROVIDER_WHITELIST": "BB_MULTI_PROVIDER_ALLOWED",
+    "BB_STAMP_WHITELIST": "is a deprecated variable and support has been removed",
+    "BB_STAMP_POLICY": "is a deprecated variable and support has been removed",
+}
+
 def infer_caller_details(loginfo, parent = False, varval = True):
     """Save the caller the trouble of specifying everything."""
     # Save effort.
@@ -336,6 +348,16 @@
                 lines.append(line)
         return lines
 
+    def get_variable_refs(self, var):
+        """Return a dict of file/line references"""
+        var_history = self.variable(var)
+        refs = {}
+        for event in var_history:
+            if event['file'] not in refs:
+                refs[event['file']] = []
+            refs[event['file']].append(event['line'])
+        return refs
+
     def get_variable_items_files(self, var):
         """
         Use variable history to map items added to a list variable and
@@ -370,6 +392,23 @@
             else:
                 self.variables[var] = []
 
+def _print_rename_error(var, loginfo, renamedvars, fullvar=None):
+    info = ""
+    if "file" in loginfo:
+        info = " file: %s" % loginfo["file"]
+    if "line" in loginfo:
+        info += " line: %s" % loginfo["line"]
+    if fullvar and fullvar != var:
+        info += " referenced as: %s" % fullvar
+    if info:
+        info = " (%s)" % info.strip()
+    renameinfo = renamedvars[var]
+    if " " in renameinfo:
+        # A space signals a string to display instead of a rename
+        bb.erroronce('Variable %s %s%s' % (var, renameinfo, info))
+    else:
+        bb.erroronce('Variable %s has been renamed to %s%s' % (var, renameinfo, info))
+
 class DataSmart(MutableMapping):
     def __init__(self):
         self.dict = {}
@@ -377,6 +416,8 @@
         self.inchistory = IncludeHistory()
         self.varhistory = VariableHistory(self)
         self._tracking = False
+        self._var_renames = {}
+        self._var_renames.update(bitbake_renamed_vars)
 
         self.expand_cache = {}
 
@@ -488,18 +529,26 @@
         else:
             self.initVar(var)
 
+    def hasOverrides(self, var):
+        return var in self.overridedata
 
     def setVar(self, var, value, **loginfo):
         #print("var=" + str(var) + "  val=" + str(value))
 
         if not var.startswith("__anon_") and ("_append" in var or "_prepend" in var or "_remove" in var):
             info = "%s" % var
-            if "filename" in loginfo:
-                info += " file: %s" % loginfo[filename]
-            if "lineno" in loginfo:
-                info += " line: %s" % loginfo[lineno]
+            if "file" in loginfo:
+                info += " file: %s" % loginfo["file"]
+            if "line" in loginfo:
+                info += " line: %s" % loginfo["line"]
             bb.fatal("Variable %s contains an operation using the old override syntax. Please convert this layer/metadata before attempting to use with a newer bitbake." % info)
 
+        shortvar = var.split(":", 1)[0]
+        if shortvar in self._var_renames:
+            _print_rename_error(shortvar, loginfo, self._var_renames, fullvar=var)
+            # Mark that we have seen a renamed variable
+            self.setVar("_FAILPARSINGERRORHANDLED", True)
+
         self.expand_cache = {}
         parsing=False
         if 'parsing' in loginfo:
@@ -685,6 +734,14 @@
     def setVarFlag(self, var, flag, value, **loginfo):
         self.expand_cache = {}
 
+        if var == "BB_RENAMED_VARIABLES":
+            self._var_renames[flag] = value
+
+        if var in self._var_renames:
+            _print_rename_error(var, loginfo, self._var_renames)
+            # Mark that we have seen a renamed variable
+            self.setVar("_FAILPARSINGERRORHANDLED", True)
+
         if 'op' not in loginfo:
             loginfo['op'] = "set"
         loginfo['flag'] = flag
@@ -924,6 +981,7 @@
         data.inchistory = self.inchistory.copy()
 
         data._tracking = self._tracking
+        data._var_renames = self._var_renames
 
         data.overrides = None
         data.overridevars = copy.copy(self.overridevars)
@@ -946,7 +1004,7 @@
         value = self.getVar(variable, False)
         for key in keys:
             referrervalue = self.getVar(key, False)
-            if referrervalue and ref in referrervalue:
+            if referrervalue and isinstance(referrervalue, str) and ref in referrervalue:
                 self.setVar(key, referrervalue.replace(ref, value))
 
     def localkeys(self):
@@ -1012,10 +1070,10 @@
         d = self.createCopy()
         bb.data.expandKeys(d)
 
-        config_whitelist = set((d.getVar("BB_HASHCONFIG_WHITELIST") or "").split())
+        config_ignore_vars = set((d.getVar("BB_HASHCONFIG_IGNORE_VARS") or "").split())
         keys = set(key for key in iter(d) if not key.startswith("__"))
         for key in keys:
-            if key in config_whitelist:
+            if key in config_ignore_vars:
                 continue
 
             value = d.getVar(key, False) or ""
diff --git a/poky/bitbake/lib/bb/event.py b/poky/bitbake/lib/bb/event.py
index 0454c75..df02055 100644
--- a/poky/bitbake/lib/bb/event.py
+++ b/poky/bitbake/lib/bb/event.py
@@ -40,7 +40,7 @@
     """Triggered at regular time intervals of 10 seconds. Other events can fire much more often
        (runQueueTaskStarted when there are many short tasks) or not at all for long periods
        of time (again runQueueTaskStarted, when there is just one long-running task), so this
-       event is more suitable for doing some task-independent work occassionally."""
+       event is more suitable for doing some task-independent work occasionally."""
     def __init__(self, time):
         Event.__init__(self)
         self.time = time
@@ -486,7 +486,7 @@
         BuildBase.__init__(self, n, p, failures)
 
 class DiskFull(Event):
-    """Disk full case build aborted"""
+    """Disk full case build halted"""
     def __init__(self, dev, type, freespace, mountpoint):
         Event.__init__(self)
         self._dev = dev
@@ -764,7 +764,7 @@
 class MetadataEvent(Event):
     """
     Generic event that target for OE-Core classes
-    to report information during asynchrous execution
+    to report information during asynchronous execution
     """
     def __init__(self, eventtype, eventdata):
         Event.__init__(self)
diff --git a/poky/bitbake/lib/bb/fetch2/__init__.py b/poky/bitbake/lib/bb/fetch2/__init__.py
index d371741..5dfe5ff 100644
--- a/poky/bitbake/lib/bb/fetch2/__init__.py
+++ b/poky/bitbake/lib/bb/fetch2/__init__.py
@@ -113,7 +113,7 @@
         self.args = (missing, url)
 
 class ParameterError(BBFetchException):
-    """Exception raised when a url cannot be proccessed due to invalid parameters."""
+    """Exception raised when a url cannot be processed due to invalid parameters."""
     def __init__(self, message, url):
         msg = "URL: '%s' has invalid parameters. %s" % (url, message)
         self.url = url
@@ -182,7 +182,7 @@
     Some notes about relative URIs: while it's specified that
     a URI beginning with <scheme>:// should either be directly
     followed by a hostname or a /, the old URI handling of the
-    fetch2 library did not comform to this. Therefore, this URI
+    fetch2 library did not conform to this. Therefore, this URI
     class has some kludges to make sure that URIs are parsed in
     a way comforming to bitbake's current usage. This URI class
     supports the following:
@@ -199,7 +199,7 @@
      file://hostname/absolute/path.diff (would be IETF compliant)
 
     Note that the last case only applies to a list of
-    "whitelisted" schemes (currently only file://), that requires
+    explicitly allowed schemes (currently only file://), that requires
     its URIs to not have a network location.
     """
 
@@ -473,10 +473,13 @@
                     basename = os.path.basename(ud.localpath)
                 if basename:
                     uri_basename = os.path.basename(uri_decoded[loc])
-                    if uri_basename and basename != uri_basename and result_decoded[loc].endswith(uri_basename):
-                        result_decoded[loc] = result_decoded[loc].replace(uri_basename, basename)
-                    elif not result_decoded[loc].endswith(basename):
-                        result_decoded[loc] = os.path.join(result_decoded[loc], basename)
+                    # Prefix with a slash as a sentinel in case
+                    # result_decoded[loc] does not contain one.
+                    path = "/" + result_decoded[loc]
+                    if uri_basename and basename != uri_basename and path.endswith("/" + uri_basename):
+                        result_decoded[loc] = path[1:-len(uri_basename)] + basename
+                    elif not path.endswith("/" + basename):
+                        result_decoded[loc] = os.path.join(path[1:], basename)
         else:
             return None
     result = encodeurl(result_decoded)
@@ -762,6 +765,7 @@
     that fetcher provides a method with the given name and the same signature as sortable_revision.
     """
 
+    d.setVar("__BBSEENSRCREV", "1")
     recursion = d.getVar("__BBINSRCREV")
     if recursion:
         raise FetchError("There are recursive references in fetcher variables, likely through SRC_URI")
@@ -847,6 +851,17 @@
                      'AWS_SECRET_ACCESS_KEY',
                      'AWS_DEFAULT_REGION']
 
+def get_fetcher_environment(d):
+    newenv = {}
+    origenv = d.getVar("BB_ORIGENV")
+    for name in bb.fetch2.FETCH_EXPORT_VARS:
+        value = d.getVar(name)
+        if not value and origenv:
+            value = origenv.getVar(name)
+        if value:
+            newenv[name] = value
+    return newenv
+
 def runfetchcmd(cmd, d, quiet=False, cleanup=None, log=None, workdir=None):
     """
     Run cmd returning the command output
diff --git a/poky/bitbake/lib/bb/fetch2/git.py b/poky/bitbake/lib/bb/fetch2/git.py
index 30da8e9..b3c5e6d 100644
--- a/poky/bitbake/lib/bb/fetch2/git.py
+++ b/poky/bitbake/lib/bb/fetch2/git.py
@@ -399,7 +399,7 @@
 
         if self._contains_lfs(ud, d, ud.clonedir) and self._need_lfs(ud):
             # Unpack temporary working copy, use it to run 'git checkout' to force pre-fetching
-            # of all LFS blobs needed at the the srcrev.
+            # of all LFS blobs needed at the srcrev.
             #
             # It would be nice to just do this inline here by running 'git-lfs fetch'
             # on the bare clonedir, but that operation requires a working copy on some
@@ -727,6 +727,12 @@
         """
         Compute the HEAD revision for the url
         """
+        if not d.getVar("__BBSEENSRCREV"):
+            raise bb.fetch2.FetchError("Recipe uses a floating tag/branch without a fixed SRCREV yet doesn't call bb.fetch2.get_srcrev() (use SRCPV in PV for OE).")
+
+        # Ensure we mark as not cached
+        bb.fetch2.get_autorev(d)
+
         output = self._lsremote(ud, d, "")
         # Tags of the form ^{} may not work, need to fallback to other form
         if ud.unresolvedrev[name][:5] == "refs/" or ud.usehead:
diff --git a/poky/bitbake/lib/bb/fetch2/npm.py b/poky/bitbake/lib/bb/fetch2/npm.py
index b3a3a44..8f7c10a 100644
--- a/poky/bitbake/lib/bb/fetch2/npm.py
+++ b/poky/bitbake/lib/bb/fetch2/npm.py
@@ -52,9 +52,13 @@
     """Get the filename of a npm package"""
     return npm_package(package) + "-" + version + ".tgz"
 
-def npm_localfile(package, version):
+def npm_localfile(package, version=None):
     """Get the local filename of a npm package"""
-    return os.path.join("npm2", npm_filename(package, version))
+    if version is not None:
+        filename = npm_filename(package, version)
+    else:
+        filename = package
+    return os.path.join("npm2", filename)
 
 def npm_integrity(integrity):
     """
@@ -157,7 +161,7 @@
         # Using the 'downloadfilename' parameter as local filename
         # or the npm package name.
         if "downloadfilename" in ud.parm:
-            ud.localfile = d.expand(ud.parm["downloadfilename"])
+            ud.localfile = npm_localfile(d.expand(ud.parm["downloadfilename"]))
         else:
             ud.localfile = npm_localfile(ud.package, ud.version)
 
diff --git a/poky/bitbake/lib/bb/fetch2/npmsw.py b/poky/bitbake/lib/bb/fetch2/npmsw.py
index 879ba5d..a8c4d35 100644
--- a/poky/bitbake/lib/bb/fetch2/npmsw.py
+++ b/poky/bitbake/lib/bb/fetch2/npmsw.py
@@ -117,7 +117,7 @@
 
             # Handle http tarball sources
             elif version.startswith("http") and integrity:
-                localfile = os.path.join("npm2", os.path.basename(version))
+                localfile = npm_localfile(os.path.basename(version))
 
                 uri = URI(version)
                 uri.params["downloadfilename"] = localfile
diff --git a/poky/bitbake/lib/bb/fetch2/wget.py b/poky/bitbake/lib/bb/fetch2/wget.py
index 253cabc..b3a3de5 100644
--- a/poky/bitbake/lib/bb/fetch2/wget.py
+++ b/poky/bitbake/lib/bb/fetch2/wget.py
@@ -228,7 +228,7 @@
                         # We let the request fail and expect it to be
                         # tried once more ("try_again" in check_status()),
                         # with the dead connection removed from the cache.
-                        # If it still fails, we give up, which can happend for bad
+                        # If it still fails, we give up, which can happen for bad
                         # HTTP proxy settings.
                         fetch.connection_cache.remove_connection(h.host, h.port)
                     raise urllib.error.URLError(err)
@@ -315,15 +315,7 @@
         # Avoid tramping the environment too much by using bb.utils.environment
         # to scope the changes to the build_opener request, which is when the
         # environment lookups happen.
-        newenv = {}
-        for name in bb.fetch2.FETCH_EXPORT_VARS:
-            value = d.getVar(name)
-            if not value:
-                origenv = d.getVar("BB_ORIGENV")
-                if origenv:
-                    value = origenv.getVar(name)
-            if value:
-                newenv[name] = value
+        newenv = bb.fetch2.get_fetcher_environment(d)
 
         with bb.utils.environment(**newenv):
             import ssl
diff --git a/poky/bitbake/lib/bb/main.py b/poky/bitbake/lib/bb/main.py
index 639fc18..93eda36 100755
--- a/poky/bitbake/lib/bb/main.py
+++ b/poky/bitbake/lib/bb/main.py
@@ -127,7 +127,7 @@
                       help="Execute tasks from a specific .bb recipe directly. WARNING: Does "
                            "not handle any dependencies from other recipes.")
 
-    parser.add_option("-k", "--continue", action="store_false", dest="abort", default=True,
+    parser.add_option("-k", "--continue", action="store_false", dest="halt", default=True,
                       help="Continue as much as possible after an error. While the target that "
                            "failed and anything depending on it cannot be built, as much as "
                            "possible will be built before stopping.")
diff --git a/poky/bitbake/lib/bb/monitordisk.py b/poky/bitbake/lib/bb/monitordisk.py
index 98f2109..8d8cfbb 100644
--- a/poky/bitbake/lib/bb/monitordisk.py
+++ b/poky/bitbake/lib/bb/monitordisk.py
@@ -76,7 +76,12 @@
             return None
 
         action = pathSpaceInodeRe.group(1)
-        if action not in ("ABORT", "STOPTASKS", "WARN"):
+        if action == "ABORT":
+            # Emit a deprecation warning
+            logger.warnonce("The BB_DISKMON_DIRS \"ABORT\" action has been been renamed to \"HALT\", update configuration")
+            action = "HALT"
+
+        if action not in ("HALT", "STOPTASKS", "WARN"):
             printErr("Unknown disk space monitor action: %s" % action)
             return None
 
@@ -177,7 +182,7 @@
                     # use them to avoid printing too many warning messages
                     self.preFreeS = {}
                     self.preFreeI = {}
-                    # This is for STOPTASKS and ABORT, to avoid printing the message
+                    # This is for STOPTASKS and HALT, to avoid printing the message
                     # repeatedly while waiting for the tasks to finish
                     self.checked = {}
                     for k in self.devDict:
@@ -219,8 +224,8 @@
                         self.checked[k] = True
                         rq.finish_runqueue(False)
                         bb.event.fire(bb.event.DiskFull(dev, 'disk', freeSpace, path), self.configuration)
-                    elif action == "ABORT" and not self.checked[k]:
-                        logger.error("Immediately abort since the disk space monitor action is \"ABORT\"!")
+                    elif action == "HALT" and not self.checked[k]:
+                        logger.error("Immediately halt since the disk space monitor action is \"HALT\"!")
                         self.checked[k] = True
                         rq.finish_runqueue(True)
                         bb.event.fire(bb.event.DiskFull(dev, 'disk', freeSpace, path), self.configuration)
@@ -245,8 +250,8 @@
                         self.checked[k] = True
                         rq.finish_runqueue(False)
                         bb.event.fire(bb.event.DiskFull(dev, 'inode', freeInode, path), self.configuration)
-                    elif action  == "ABORT" and not self.checked[k]:
-                        logger.error("Immediately abort since the disk space monitor action is \"ABORT\"!")
+                    elif action  == "HALT" and not self.checked[k]:
+                        logger.error("Immediately halt since the disk space monitor action is \"HALT\"!")
                         self.checked[k] = True
                         rq.finish_runqueue(True)
                         bb.event.fire(bb.event.DiskFull(dev, 'inode', freeInode, path), self.configuration)
diff --git a/poky/bitbake/lib/bb/msg.py b/poky/bitbake/lib/bb/msg.py
index 291b38f..c95a874 100644
--- a/poky/bitbake/lib/bb/msg.py
+++ b/poky/bitbake/lib/bb/msg.py
@@ -30,7 +30,9 @@
     PLAIN = logging.INFO + 1
     VERBNOTE = logging.INFO + 2
     ERROR = logging.ERROR
+    ERRORONCE = logging.ERROR - 1
     WARNING = logging.WARNING
+    WARNONCE = logging.WARNING - 1
     CRITICAL = logging.CRITICAL
 
     levelnames = {
@@ -42,7 +44,9 @@
         PLAIN  : '',
         VERBNOTE: 'NOTE',
         WARNING : 'WARNING',
+        WARNONCE : 'WARNING',
         ERROR   : 'ERROR',
+        ERRORONCE   : 'ERROR',
         CRITICAL: 'ERROR',
     }
 
@@ -58,7 +62,9 @@
         PLAIN   : BASECOLOR,
         VERBNOTE: BASECOLOR,
         WARNING : YELLOW,
+        WARNONCE : YELLOW,
         ERROR   : RED,
+        ERRORONCE : RED,
         CRITICAL: RED,
     }
 
@@ -121,6 +127,23 @@
             return True
         return False
 
+class LogFilterShowOnce(logging.Filter):
+    def __init__(self):
+        self.seen_warnings = set()
+        self.seen_errors = set()
+
+    def filter(self, record):
+        msg = record.msg
+        if record.levelno == bb.msg.BBLogFormatter.WARNONCE:
+            if record.msg in self.seen_warnings:
+                return False
+            self.seen_warnings.add(record.msg)
+        if record.levelno == bb.msg.BBLogFormatter.ERRORONCE:
+            if record.msg in self.seen_errors:
+                return False
+            self.seen_errors.add(record.msg)
+        return True
+
 class LogFilterGEQLevel(logging.Filter):
     def __init__(self, level):
         self.strlevel = str(level)
@@ -206,6 +229,7 @@
     """Standalone logger creation function"""
     logger = logging.getLogger(name)
     console = logging.StreamHandler(output)
+    console.addFilter(bb.msg.LogFilterShowOnce())
     format = bb.msg.BBLogFormatter("%(levelname)s: %(message)s")
     if color == 'always' or (color == 'auto' and output.isatty()):
         format.enable_color()
@@ -293,10 +317,17 @@
 
     # Convert all level parameters to integers in case users want to use the
     # bitbake defined level names
-    for h in logconfig["handlers"].values():
+    for name, h in logconfig["handlers"].items():
         if "level" in h:
             h["level"] = bb.msg.stringToLevel(h["level"])
 
+        # Every handler needs its own instance of the once filter.
+        once_filter_name = name + ".showonceFilter"
+        logconfig.setdefault("filters", {})[once_filter_name] = {
+            "()": "bb.msg.LogFilterShowOnce",
+        }
+        h.setdefault("filters", []).append(once_filter_name)
+
     for l in logconfig["loggers"].values():
         if "level" in l:
             l["level"] = bb.msg.stringToLevel(l["level"])
diff --git a/poky/bitbake/lib/bb/parse/ast.py b/poky/bitbake/lib/bb/parse/ast.py
index 31bcc8e..4b1b44c 100644
--- a/poky/bitbake/lib/bb/parse/ast.py
+++ b/poky/bitbake/lib/bb/parse/ast.py
@@ -333,6 +333,10 @@
 def finalize(fn, d, variant = None):
     saved_handlers = bb.event.get_handlers().copy()
     try:
+        # Found renamed variables. Exit immediately
+        if d.getVar("_FAILPARSINGERRORHANDLED", False) == True:
+            raise bb.BBHandledException()
+
         for var in d.getVar('__BBHANDLERS', False) or []:
             # try to add the handler
             handlerfn = d.getVarFlag(var, "filename", False)
diff --git a/poky/bitbake/lib/bb/persist_data.py b/poky/bitbake/lib/bb/persist_data.py
index 49c9a0d..9e20a83 100644
--- a/poky/bitbake/lib/bb/persist_data.py
+++ b/poky/bitbake/lib/bb/persist_data.py
@@ -63,7 +63,7 @@
             """
             Decorator that starts a database transaction and creates a database
             cursor for performing queries. If no exception is thrown, the
-            database results are commited. If an exception occurs, the database
+            database results are committed. If an exception occurs, the database
             is rolled back. In all cases, the cursor is closed after the
             function ends.
 
diff --git a/poky/bitbake/lib/bb/process.py b/poky/bitbake/lib/bb/process.py
index af5d804..be2c15a 100644
--- a/poky/bitbake/lib/bb/process.py
+++ b/poky/bitbake/lib/bb/process.py
@@ -142,7 +142,7 @@
         while pipe.poll() is None:
             read_all_pipes(log, rin, outdata, errdata)
 
-        # Pocess closed, drain all pipes...
+        # Process closed, drain all pipes...
         read_all_pipes(log, rin, outdata, errdata)
     finally:
         log.flush()
diff --git a/poky/bitbake/lib/bb/progress.py b/poky/bitbake/lib/bb/progress.py
index 52d704d..9518be7 100644
--- a/poky/bitbake/lib/bb/progress.py
+++ b/poky/bitbake/lib/bb/progress.py
@@ -148,7 +148,7 @@
     for tasks made up of python code spread across multiple
     classes / functions - the progress reporter object can
     be passed around or stored at the object level and calls
-    to next_stage() and update() made whereever needed.
+    to next_stage() and update() made wherever needed.
     """
     def __init__(self, d, stage_weights, debug=False):
         """
diff --git a/poky/bitbake/lib/bb/runqueue.py b/poky/bitbake/lib/bb/runqueue.py
index 8ae3fe8..a7a8463 100644
--- a/poky/bitbake/lib/bb/runqueue.py
+++ b/poky/bitbake/lib/bb/runqueue.py
@@ -385,9 +385,9 @@
         self.rq = rq
         self.warn_multi_bb = False
 
-        self.multi_provider_whitelist = (cfgData.getVar("MULTI_PROVIDER_WHITELIST") or "").split()
-        self.setscenewhitelist = get_setscene_enforce_whitelist(cfgData, targets)
-        self.setscenewhitelist_checked = False
+        self.multi_provider_allowed = (cfgData.getVar("BB_MULTI_PROVIDER_ALLOWED") or "").split()
+        self.setscene_ignore_tasks = get_setscene_enforce_ignore_tasks(cfgData, targets)
+        self.setscene_ignore_tasks_checked = False
         self.setscene_enforce = (cfgData.getVar('BB_SETSCENE_ENFORCE') == "1")
         self.init_progress_reporter = bb.progress.DummyMultiStageProcessProgressReporter()
 
@@ -485,7 +485,7 @@
                             msgs.append("  Task %s (dependent Tasks %s)\n" % (dep, self.runq_depends_names(self.runtaskentries[dep].depends)))
                         msgs.append("\n")
                     if len(valid_chains) > 10:
-                        msgs.append("Aborted dependency loops search after 10 matches.\n")
+                        msgs.append("Halted dependency loops search after 10 matches.\n")
                         raise TooManyLoops
                     continue
                 scan = False
@@ -989,7 +989,7 @@
 
         # Check to make sure we still have tasks to run
         if not self.runtaskentries:
-            if not taskData[''].abort:
+            if not taskData[''].halt:
                 bb.msg.fatal("RunQueue", "All buildable tasks have been run but the build is incomplete (--continue mode). Errors for the tasks that failed will have been printed above.")
             else:
                 bb.msg.fatal("RunQueue", "No active tasks and not in --continue mode?! Please report this bug.")
@@ -1048,7 +1048,7 @@
             for prov in prov_list:
                 if len(prov_list[prov]) < 2:
                     continue
-                if prov in self.multi_provider_whitelist:
+                if prov in self.multi_provider_allowed:
                     continue
                 seen_pn = []
                 # If two versions of the same PN are being built its fatal, we don't support it.
@@ -1424,7 +1424,7 @@
         """
         Run the tasks in a queue prepared by rqdata.prepare()
         Upon failure, optionally try to recover the build using any alternate providers
-        (if the abort on failure configuration option isn't set)
+        (if the halt on failure configuration option isn't set)
         """
 
         retval = True
@@ -1929,7 +1929,7 @@
 
         bb.event.fire(runQueueTaskFailed(task, self.stats, exitcode, self.rq, fakeroot_log=("".join(fakeroot_log) or None)), self.cfgData)
 
-        if self.rqdata.taskData[''].abort:
+        if self.rqdata.taskData[''].halt:
             self.rq.state = runQueueCleanUp
 
     def task_skip(self, task, reason):
@@ -2107,9 +2107,9 @@
         if task is not None:
             (mc, fn, taskname, taskfn) = split_tid_mcfn(task)
 
-            if self.rqdata.setscenewhitelist is not None:
-                if self.check_setscenewhitelist(task):
-                    self.task_fail(task, "setscene whitelist")
+            if self.rqdata.setscene_ignore_tasks is not None:
+                if self.check_setscene_ignore_tasks(task):
+                    self.task_fail(task, "setscene ignore_tasks")
                     return True
 
             if task in self.tasks_covered:
@@ -2392,7 +2392,7 @@
                 self.tasks_scenequeue_done.remove(tid)
             for dep in self.sqdata.sq_covered_tasks[tid]:
                 if dep in self.runq_complete and dep not in self.runq_tasksrun:
-                    bb.error("Task %s marked as completed but now needing to rerun? Aborting build." % dep)
+                    bb.error("Task %s marked as completed but now needing to rerun? Halting build." % dep)
                     self.failed_tids.append(tid)
                     self.rq.state = runQueueCleanUp
                     return
@@ -2501,11 +2501,11 @@
         self.scenequeue_updatecounters(task)
 
     def sq_check_taskfail(self, task):
-        if self.rqdata.setscenewhitelist is not None:
+        if self.rqdata.setscene_ignore_tasks is not None:
             realtask = task.split('_setscene')[0]
             (mc, fn, taskname, taskfn) = split_tid_mcfn(realtask)
             pn = self.rqdata.dataCaches[mc].pkg_fn[taskfn]
-            if not check_setscene_enforce_whitelist(pn, taskname, self.rqdata.setscenewhitelist):
+            if not check_setscene_enforce_ignore_tasks(pn, taskname, self.rqdata.setscene_ignore_tasks):
                 logger.error('Task %s.%s failed' % (pn, taskname + "_setscene"))
                 self.rq.state = runQueueCleanUp
 
@@ -2568,8 +2568,8 @@
         #bb.note("Task %s: " % task + str(taskdepdata).replace("], ", "],\n"))
         return taskdepdata
 
-    def check_setscenewhitelist(self, tid):
-        # Check task that is going to run against the whitelist
+    def check_setscene_ignore_tasks(self, tid):
+        # Check task that is going to run against the ignore tasks list
         (mc, fn, taskname, taskfn) = split_tid_mcfn(tid)
         # Ignore covered tasks
         if tid in self.tasks_covered:
@@ -2583,7 +2583,7 @@
             return False
 
         pn = self.rqdata.dataCaches[mc].pkg_fn[taskfn]
-        if not check_setscene_enforce_whitelist(pn, taskname, self.rqdata.setscenewhitelist):
+        if not check_setscene_enforce_ignore_tasks(pn, taskname, self.rqdata.setscene_ignore_tasks):
             if tid in self.rqdata.runq_setscene_tids:
                 msg = ['Task %s.%s attempted to execute unexpectedly and should have been setscened' % (pn, taskname)]
             else:
@@ -2710,7 +2710,7 @@
         if tid in rqdata.runq_setscene_tids:
             pass
         elif sq_revdeps_squash[tid]:
-            bb.msg.fatal("RunQueue", "Something went badly wrong during scenequeue generation, aborting. Please report this problem.")
+            bb.msg.fatal("RunQueue", "Something went badly wrong during scenequeue generation, halting. Please report this problem.")
         else:
             del sq_revdeps_squash[tid]
         rqdata.init_progress_reporter.update(taskcounter)
@@ -3070,12 +3070,12 @@
             print("Warning, worker left partial message: %s" % self.queue)
         self.input.close()
 
-def get_setscene_enforce_whitelist(d, targets):
+def get_setscene_enforce_ignore_tasks(d, targets):
     if d.getVar('BB_SETSCENE_ENFORCE') != '1':
         return None
-    whitelist = (d.getVar("BB_SETSCENE_ENFORCE_WHITELIST") or "").split()
+    ignore_tasks = (d.getVar("BB_SETSCENE_ENFORCE_IGNORE_TASKS") or "").split()
     outlist = []
-    for item in whitelist[:]:
+    for item in ignore_tasks[:]:
         if item.startswith('%:'):
             for (mc, target, task, fn) in targets:
                 outlist.append(target + ':' + item.split(':')[1])
@@ -3083,12 +3083,12 @@
             outlist.append(item)
     return outlist
 
-def check_setscene_enforce_whitelist(pn, taskname, whitelist):
+def check_setscene_enforce_ignore_tasks(pn, taskname, ignore_tasks):
     import fnmatch
-    if whitelist is not None:
+    if ignore_tasks is not None:
         item = '%s:%s' % (pn, taskname)
-        for whitelist_item in whitelist:
-            if fnmatch.fnmatch(item, whitelist_item):
+        for ignore_tasks in ignore_tasks:
+            if fnmatch.fnmatch(item, ignore_tasks):
                 return True
         return False
     return True
diff --git a/poky/bitbake/lib/bb/siggen.py b/poky/bitbake/lib/bb/siggen.py
index e0ec736..ebba452 100644
--- a/poky/bitbake/lib/bb/siggen.py
+++ b/poky/bitbake/lib/bb/siggen.py
@@ -172,8 +172,8 @@
         self.gendeps = {}
         self.lookupcache = {}
         self.setscenetasks = set()
-        self.basewhitelist = set((data.getVar("BB_HASHBASE_WHITELIST") or "").split())
-        self.taskwhitelist = None
+        self.basehash_ignore_vars = set((data.getVar("BB_BASEHASH_IGNORE_VARS") or "").split())
+        self.taskhash_ignore_tasks = None
         self.init_rundepcheck(data)
         checksum_cache_file = data.getVar("BB_HASH_CHECKSUM_CACHE_FILE")
         if checksum_cache_file:
@@ -188,18 +188,18 @@
         self.tidtopn = {}
 
     def init_rundepcheck(self, data):
-        self.taskwhitelist = data.getVar("BB_HASHTASK_WHITELIST") or None
-        if self.taskwhitelist:
-            self.twl = re.compile(self.taskwhitelist)
+        self.taskhash_ignore_tasks = data.getVar("BB_TASKHASH_IGNORE_TASKS") or None
+        if self.taskhash_ignore_tasks:
+            self.twl = re.compile(self.taskhash_ignore_tasks)
         else:
             self.twl = None
 
     def _build_data(self, fn, d):
 
         ignore_mismatch = ((d.getVar("BB_HASH_IGNORE_MISMATCH") or '') == '1')
-        tasklist, gendeps, lookupcache = bb.data.generate_dependencies(d, self.basewhitelist)
+        tasklist, gendeps, lookupcache = bb.data.generate_dependencies(d, self.basehash_ignore_vars)
 
-        taskdeps, basehash = bb.data.generate_dependency_hash(tasklist, gendeps, lookupcache, self.basewhitelist, fn)
+        taskdeps, basehash = bb.data.generate_dependency_hash(tasklist, gendeps, lookupcache, self.basehash_ignore_vars, fn)
 
         for task in tasklist:
             tid = fn + ":" + task
@@ -253,7 +253,8 @@
 
     def rundep_check(self, fn, recipename, task, dep, depname, dataCaches):
         # Return True if we should keep the dependency, False to drop it
-        # We only manipulate the dependencies for packages not in the whitelist
+        # We only manipulate the dependencies for packages not in the ignore
+        # list
         if self.twl and not self.twl.search(recipename):
             # then process the actual dependencies
             if self.twl.search(depname):
@@ -372,15 +373,15 @@
 
         data = {}
         data['task'] = task
-        data['basewhitelist'] = self.basewhitelist
-        data['taskwhitelist'] = self.taskwhitelist
+        data['basehash_ignore_vars'] = self.basehash_ignore_vars
+        data['taskhash_ignore_tasks'] = self.taskhash_ignore_tasks
         data['taskdeps'] = self.taskdeps[fn][task]
         data['basehash'] = self.basehash[tid]
         data['gendeps'] = {}
         data['varvals'] = {}
         data['varvals'][task] = self.lookupcache[fn][task]
         for dep in self.taskdeps[fn][task]:
-            if dep in self.basewhitelist:
+            if dep in self.basehash_ignore_vars:
                 continue
             data['gendeps'][dep] = self.gendeps[fn][dep]
             data['varvals'][dep] = self.lookupcache[fn][dep]
@@ -583,7 +584,7 @@
         if self.setscenetasks and tid not in self.setscenetasks:
             return
 
-        # This can happen if locked sigs are in action. Detect and just abort
+        # This can happen if locked sigs are in action. Detect and just exit
         if taskhash != self.taskhash[tid]:
             return
 
@@ -794,6 +795,16 @@
         b.append(clean_basepath(x))
     return b
 
+# Handled renamed fields
+def handle_renames(data):
+    if 'basewhitelist' in data:
+        data['basehash_ignore_vars'] = data['basewhitelist']
+        del data['basewhitelist']
+    if 'taskwhitelist' in data:
+        data['taskhash_ignore_tasks'] = data['taskwhitelist']
+        del data['taskwhitelist']
+
+
 def compare_sigfiles(a, b, recursecb=None, color=False, collapsed=False):
     output = []
 
@@ -819,13 +830,16 @@
     with bb.compress.zstd.open(b, "rt", encoding="utf-8", num_threads=1) as f:
         b_data = json.load(f, object_hook=SetDecoder)
 
-    def dict_diff(a, b, whitelist=set()):
+    for data in [a_data, b_data]:
+        handle_renames(data)
+
+    def dict_diff(a, b, ignored_vars=set()):
         sa = set(a.keys())
         sb = set(b.keys())
         common = sa & sb
         changed = set()
         for i in common:
-            if a[i] != b[i] and i not in whitelist:
+            if a[i] != b[i] and i not in ignored_vars:
                 changed.add(i)
         added = sb - sa
         removed = sa - sb
@@ -864,15 +878,15 @@
         removed = [x[0] for x in removed]
         return changed, added, removed
 
-    if 'basewhitelist' in a_data and a_data['basewhitelist'] != b_data['basewhitelist']:
-        output.append(color_format("{color_title}basewhitelist changed{color_default} from '%s' to '%s'") % (a_data['basewhitelist'], b_data['basewhitelist']))
-        if a_data['basewhitelist'] and b_data['basewhitelist']:
-            output.append("changed items: %s" % a_data['basewhitelist'].symmetric_difference(b_data['basewhitelist']))
+    if 'basehash_ignore_vars' in a_data and a_data['basehash_ignore_vars'] != b_data['basehash_ignore_vars']:
+        output.append(color_format("{color_title}basehash_ignore_vars changed{color_default} from '%s' to '%s'") % (a_data['basehash_ignore_vars'], b_data['basehash_ignore_vars']))
+        if a_data['basehash_ignore_vars'] and b_data['basehash_ignore_vars']:
+            output.append("changed items: %s" % a_data['basehash_ignore_vars'].symmetric_difference(b_data['basehash_ignore_vars']))
 
-    if 'taskwhitelist' in a_data and a_data['taskwhitelist'] != b_data['taskwhitelist']:
-        output.append(color_format("{color_title}taskwhitelist changed{color_default} from '%s' to '%s'") % (a_data['taskwhitelist'], b_data['taskwhitelist']))
-        if a_data['taskwhitelist'] and b_data['taskwhitelist']:
-            output.append("changed items: %s" % a_data['taskwhitelist'].symmetric_difference(b_data['taskwhitelist']))
+    if 'taskhash_ignore_tasks' in a_data and a_data['taskhash_ignore_tasks'] != b_data['taskhash_ignore_tasks']:
+        output.append(color_format("{color_title}taskhash_ignore_tasks changed{color_default} from '%s' to '%s'") % (a_data['taskhash_ignore_tasks'], b_data['taskhash_ignore_tasks']))
+        if a_data['taskhash_ignore_tasks'] and b_data['taskhash_ignore_tasks']:
+            output.append("changed items: %s" % a_data['taskhash_ignore_tasks'].symmetric_difference(b_data['taskhash_ignore_tasks']))
 
     if a_data['taskdeps'] != b_data['taskdeps']:
         output.append(color_format("{color_title}Task dependencies changed{color_default} from:\n%s\nto:\n%s") % (sorted(a_data['taskdeps']), sorted(b_data['taskdeps'])))
@@ -880,7 +894,7 @@
     if a_data['basehash'] != b_data['basehash'] and not collapsed:
         output.append(color_format("{color_title}basehash changed{color_default} from %s to %s") % (a_data['basehash'], b_data['basehash']))
 
-    changed, added, removed = dict_diff(a_data['gendeps'], b_data['gendeps'], a_data['basewhitelist'] & b_data['basewhitelist'])
+    changed, added, removed = dict_diff(a_data['gendeps'], b_data['gendeps'], a_data['basehash_ignore_vars'] & b_data['basehash_ignore_vars'])
     if changed:
         for dep in sorted(changed):
             output.append(color_format("{color_title}List of dependencies for variable %s changed from '{color_default}%s{color_title}' to '{color_default}%s{color_title}'") % (dep, a_data['gendeps'][dep], b_data['gendeps'][dep]))
@@ -1054,9 +1068,11 @@
     with bb.compress.zstd.open(a, "rt", encoding="utf-8", num_threads=1) as f:
         a_data = json.load(f, object_hook=SetDecoder)
 
-    output.append("basewhitelist: %s" % (sorted(a_data['basewhitelist'])))
+    handle_renames(a_data)
 
-    output.append("taskwhitelist: %s" % (sorted(a_data['taskwhitelist'] or [])))
+    output.append("basehash_ignore_vars: %s" % (sorted(a_data['basehash_ignore_vars'])))
+
+    output.append("taskhash_ignore_tasks: %s" % (sorted(a_data['taskhash_ignore_tasks'] or [])))
 
     output.append("Task dependencies: %s" % (sorted(a_data['taskdeps'])))
 
diff --git a/poky/bitbake/lib/bb/taskdata.py b/poky/bitbake/lib/bb/taskdata.py
index 7bfcdb8..66545a6 100644
--- a/poky/bitbake/lib/bb/taskdata.py
+++ b/poky/bitbake/lib/bb/taskdata.py
@@ -39,7 +39,7 @@
     """
     BitBake Task Data implementation
     """
-    def __init__(self, abort = True, skiplist = None, allowincomplete = False):
+    def __init__(self, halt = True, skiplist = None, allowincomplete = False):
         self.build_targets = {}
         self.run_targets = {}
 
@@ -57,7 +57,7 @@
         self.failed_rdeps = []
         self.failed_fns = []
 
-        self.abort = abort
+        self.halt = halt
         self.allowincomplete = allowincomplete
 
         self.skiplist = skiplist
@@ -328,7 +328,7 @@
         try:
             self.add_provider_internal(cfgData, dataCache, item)
         except bb.providers.NoProvider:
-            if self.abort:
+            if self.halt:
                 raise
             self.remove_buildtarget(item)
 
@@ -479,7 +479,7 @@
                     fn = tid.rsplit(":",1)[0]
                     self.fail_fn(fn, missing_list)
 
-        if self.abort and target in self.external_targets:
+        if self.halt and target in self.external_targets:
             logger.error("Required build target '%s' has no buildable providers.\nMissing or unbuildable dependency chain was: %s", target, missing_list)
             raise bb.providers.NoProvider(target)
 
@@ -516,7 +516,7 @@
                     self.add_provider_internal(cfgData, dataCache, target)
                     added = added + 1
                 except bb.providers.NoProvider:
-                    if self.abort and target in self.external_targets and not self.allowincomplete:
+                    if self.halt and target in self.external_targets and not self.allowincomplete:
                         raise
                     if not self.allowincomplete:
                         self.remove_buildtarget(target)
diff --git a/poky/bitbake/lib/bb/tests/fetch.py b/poky/bitbake/lib/bb/tests/fetch.py
index ec7d83c..eff12b7 100644
--- a/poky/bitbake/lib/bb/tests/fetch.py
+++ b/poky/bitbake/lib/bb/tests/fetch.py
@@ -18,7 +18,7 @@
 
 def skipIfNoNetwork():
     if os.environ.get("BB_SKIP_NETTESTS") == "yes":
-        return unittest.skip("Network tests being skipped")
+        return unittest.skip("network test")
     return lambda f: f
 
 class URITest(unittest.TestCase):
@@ -393,37 +393,53 @@
             bb.process.run('chmod u+rw -R %s' % self.tempdir)
             bb.utils.prunedir(self.tempdir)
 
+    def git(self, cmd, cwd=None):
+        if isinstance(cmd, str):
+            cmd = 'git ' + cmd
+        else:
+            cmd = ['git'] + cmd
+        if cwd is None:
+            cwd = self.gitdir
+        return bb.process.run(cmd, cwd=cwd)[0]
+
+    def git_init(self, cwd=None):
+        self.git('init', cwd=cwd)
+        if not self.git(['config', 'user.email'], cwd=cwd):
+            self.git(['config', 'user.email', 'you@example.com'], cwd=cwd)
+        if not self.git(['config', 'user.name'], cwd=cwd):
+            self.git(['config', 'user.name', 'Your Name'], cwd=cwd)
+
 class MirrorUriTest(FetcherTest):
 
     replaceuris = {
-        ("git://git.invalid.infradead.org/mtd-utils.git;tag=1234567890123456789012345678901234567890", "git://.*/.*", "http://somewhere.org/somedir/") 
+        ("git://git.invalid.infradead.org/mtd-utils.git;tag=1234567890123456789012345678901234567890", "git://.*/.*", "http://somewhere.org/somedir/")
             : "http://somewhere.org/somedir/git2_git.invalid.infradead.org.mtd-utils.git.tar.gz",
-        ("git://git.invalid.infradead.org/mtd-utils.git;tag=1234567890123456789012345678901234567890", "git://.*/([^/]+/)*([^/]*)", "git://somewhere.org/somedir/\\2;protocol=http") 
-            : "git://somewhere.org/somedir/mtd-utils.git;tag=1234567890123456789012345678901234567890;protocol=http", 
-        ("git://git.invalid.infradead.org/foo/mtd-utils.git;tag=1234567890123456789012345678901234567890", "git://.*/([^/]+/)*([^/]*)", "git://somewhere.org/somedir/\\2;protocol=http") 
-            : "git://somewhere.org/somedir/mtd-utils.git;tag=1234567890123456789012345678901234567890;protocol=http", 
-        ("git://git.invalid.infradead.org/foo/mtd-utils.git;tag=1234567890123456789012345678901234567890", "git://.*/([^/]+/)*([^/]*)", "git://somewhere.org/\\2;protocol=http") 
-            : "git://somewhere.org/mtd-utils.git;tag=1234567890123456789012345678901234567890;protocol=http", 
+        ("git://git.invalid.infradead.org/mtd-utils.git;tag=1234567890123456789012345678901234567890", "git://.*/([^/]+/)*([^/]*)", "git://somewhere.org/somedir/\\2;protocol=http")
+            : "git://somewhere.org/somedir/mtd-utils.git;tag=1234567890123456789012345678901234567890;protocol=http",
+        ("git://git.invalid.infradead.org/foo/mtd-utils.git;tag=1234567890123456789012345678901234567890", "git://.*/([^/]+/)*([^/]*)", "git://somewhere.org/somedir/\\2;protocol=http")
+            : "git://somewhere.org/somedir/mtd-utils.git;tag=1234567890123456789012345678901234567890;protocol=http",
+        ("git://git.invalid.infradead.org/foo/mtd-utils.git;tag=1234567890123456789012345678901234567890", "git://.*/([^/]+/)*([^/]*)", "git://somewhere.org/\\2;protocol=http")
+            : "git://somewhere.org/mtd-utils.git;tag=1234567890123456789012345678901234567890;protocol=http",
         ("git://someserver.org/bitbake;tag=1234567890123456789012345678901234567890", "git://someserver.org/bitbake", "git://git.openembedded.org/bitbake")
             : "git://git.openembedded.org/bitbake;tag=1234567890123456789012345678901234567890",
-        ("file://sstate-xyz.tgz", "file://.*", "file:///somewhere/1234/sstate-cache") 
+        ("file://sstate-xyz.tgz", "file://.*", "file:///somewhere/1234/sstate-cache")
             : "file:///somewhere/1234/sstate-cache/sstate-xyz.tgz",
-        ("file://sstate-xyz.tgz", "file://.*", "file:///somewhere/1234/sstate-cache/") 
+        ("file://sstate-xyz.tgz", "file://.*", "file:///somewhere/1234/sstate-cache/")
             : "file:///somewhere/1234/sstate-cache/sstate-xyz.tgz",
-        ("http://somewhere.org/somedir1/somedir2/somefile_1.2.3.tar.gz", "http://.*/.*", "http://somewhere2.org/somedir3") 
+        ("http://somewhere.org/somedir1/somedir2/somefile_1.2.3.tar.gz", "http://.*/.*", "http://somewhere2.org/somedir3")
             : "http://somewhere2.org/somedir3/somefile_1.2.3.tar.gz",
-        ("http://somewhere.org/somedir1/somefile_1.2.3.tar.gz", "http://somewhere.org/somedir1/somefile_1.2.3.tar.gz", "http://somewhere2.org/somedir3/somefile_1.2.3.tar.gz") 
+        ("http://somewhere.org/somedir1/somefile_1.2.3.tar.gz", "http://somewhere.org/somedir1/somefile_1.2.3.tar.gz", "http://somewhere2.org/somedir3/somefile_1.2.3.tar.gz")
             : "http://somewhere2.org/somedir3/somefile_1.2.3.tar.gz",
         ("http://www.apache.org/dist/subversion/subversion-1.7.1.tar.bz2", "http://www.apache.org/dist", "http://archive.apache.org/dist")
             : "http://archive.apache.org/dist/subversion/subversion-1.7.1.tar.bz2",
         ("http://www.apache.org/dist/subversion/subversion-1.7.1.tar.bz2", "http://.*/.*", "file:///somepath/downloads/")
             : "file:///somepath/downloads/subversion-1.7.1.tar.bz2",
-        ("git://git.invalid.infradead.org/mtd-utils.git;tag=1234567890123456789012345678901234567890", "git://.*/.*", "git://somewhere.org/somedir/BASENAME;protocol=http") 
-            : "git://somewhere.org/somedir/mtd-utils.git;tag=1234567890123456789012345678901234567890;protocol=http", 
-        ("git://git.invalid.infradead.org/foo/mtd-utils.git;tag=1234567890123456789012345678901234567890", "git://.*/.*", "git://somewhere.org/somedir/BASENAME;protocol=http") 
-            : "git://somewhere.org/somedir/mtd-utils.git;tag=1234567890123456789012345678901234567890;protocol=http", 
-        ("git://git.invalid.infradead.org/foo/mtd-utils.git;tag=1234567890123456789012345678901234567890", "git://.*/.*", "git://somewhere.org/somedir/MIRRORNAME;protocol=http") 
-            : "git://somewhere.org/somedir/git.invalid.infradead.org.foo.mtd-utils.git;tag=1234567890123456789012345678901234567890;protocol=http", 
+        ("git://git.invalid.infradead.org/mtd-utils.git;tag=1234567890123456789012345678901234567890", "git://.*/.*", "git://somewhere.org/somedir/BASENAME;protocol=http")
+            : "git://somewhere.org/somedir/mtd-utils.git;tag=1234567890123456789012345678901234567890;protocol=http",
+        ("git://git.invalid.infradead.org/foo/mtd-utils.git;tag=1234567890123456789012345678901234567890", "git://.*/.*", "git://somewhere.org/somedir/BASENAME;protocol=http")
+            : "git://somewhere.org/somedir/mtd-utils.git;tag=1234567890123456789012345678901234567890;protocol=http",
+        ("git://git.invalid.infradead.org/foo/mtd-utils.git;tag=1234567890123456789012345678901234567890", "git://.*/.*", "git://somewhere.org/somedir/MIRRORNAME;protocol=http")
+            : "git://somewhere.org/somedir/git.invalid.infradead.org.foo.mtd-utils.git;tag=1234567890123456789012345678901234567890;protocol=http",
         ("http://somewhere.org/somedir1/somedir2/somefile_1.2.3.tar.gz", "http://.*/.*", "http://somewhere2.org")
             : "http://somewhere2.org/somefile_1.2.3.tar.gz",
         ("http://somewhere.org/somedir1/somedir2/somefile_1.2.3.tar.gz", "http://.*/.*", "http://somewhere2.org/")
@@ -434,18 +450,21 @@
             : "git://user2@git.openembedded.org/bitbake;tag=1234567890123456789012345678901234567890;branch=master;protocol=http",
         ("git://someserver.org/bitbake;tag=1234567890123456789012345678901234567890;protocol=git;branch=master", "git://someserver.org/bitbake", "git://someotherserver.org/bitbake;protocol=https")
             : "git://someotherserver.org/bitbake;tag=1234567890123456789012345678901234567890;protocol=https;branch=master",
-
         ("gitsm://git.qemu.org/git/seabios.git/;protocol=https;name=roms/seabios;subpath=roms/seabios;bareclone=1;nobranch=1;rev=1234567890123456789012345678901234567890", "gitsm://.*/.*", "http://petalinux.xilinx.com/sswreleases/rel-v${XILINX_VER_MAIN}/downloads") : "http://petalinux.xilinx.com/sswreleases/rel-v%24%7BXILINX_VER_MAIN%7D/downloads/git2_git.qemu.org.git.seabios.git..tar.gz",
+        ("https://somewhere.org/example/1.0.0/example;downloadfilename=some-example-1.0.0.tgz", "https://.*/.*", "file:///mirror/PATH")
+            : "file:///mirror/example/1.0.0/some-example-1.0.0.tgz;downloadfilename=some-example-1.0.0.tgz",
+        ("https://somewhere.org/example-1.0.0.tgz;downloadfilename=some-example-1.0.0.tgz", "https://.*/.*", "file:///mirror/some-example-1.0.0.tgz")
+            : "file:///mirror/some-example-1.0.0.tgz;downloadfilename=some-example-1.0.0.tgz",
 
         #Renaming files doesn't work
         #("http://somewhere.org/somedir1/somefile_1.2.3.tar.gz", "http://somewhere.org/somedir1/somefile_1.2.3.tar.gz", "http://somewhere2.org/somedir3/somefile_2.3.4.tar.gz") : "http://somewhere2.org/somedir3/somefile_2.3.4.tar.gz"
         #("file://sstate-xyz.tgz", "file://.*/.*", "file:///somewhere/1234/sstate-cache") : "file:///somewhere/1234/sstate-cache/sstate-xyz.tgz",
     }
 
-    mirrorvar = "http://.*/.* file:///somepath/downloads/ \n" \
-                "git://someserver.org/bitbake git://git.openembedded.org/bitbake \n" \
-                "https://.*/.* file:///someotherpath/downloads/ \n" \
-                "http://.*/.* file:///someotherpath/downloads/ \n"
+    mirrorvar = "http://.*/.* file:///somepath/downloads/ " \
+                "git://someserver.org/bitbake git://git.openembedded.org/bitbake " \
+                "https://.*/.* file:///someotherpath/downloads/ " \
+                "http://.*/.* file:///someotherpath/downloads/"
 
     def test_urireplace(self):
         for k, v in self.replaceuris.items():
@@ -470,8 +489,8 @@
 
     def test_mirror_of_mirror(self):
         # Test if mirror of a mirror works
-        mirrorvar = self.mirrorvar + " http://.*/.* http://otherdownloads.yoctoproject.org/downloads/ \n"
-        mirrorvar = mirrorvar + " http://otherdownloads.yoctoproject.org/.* http://downloads2.yoctoproject.org/downloads/ \n"
+        mirrorvar = self.mirrorvar + " http://.*/.* http://otherdownloads.yoctoproject.org/downloads/"
+        mirrorvar = mirrorvar + " http://otherdownloads.yoctoproject.org/.* http://downloads2.yoctoproject.org/downloads/"
         fetcher = bb.fetch.FetchData("http://downloads.yoctoproject.org/releases/bitbake/bitbake-1.0.tar.gz", self.d)
         mirrors = bb.fetch2.mirror_from_string(mirrorvar)
         uris, uds = bb.fetch2.build_mirroruris(fetcher, mirrors, self.d)
@@ -480,8 +499,8 @@
                                 'http://otherdownloads.yoctoproject.org/downloads/bitbake-1.0.tar.gz',
                                 'http://downloads2.yoctoproject.org/downloads/bitbake-1.0.tar.gz'])
 
-    recmirrorvar = "https://.*/[^/]*    http://AAAA/A/A/A/ \n" \
-                   "https://.*/[^/]*    https://BBBB/B/B/B/ \n"
+    recmirrorvar = "https://.*/[^/]*    http://AAAA/A/A/A/ " \
+                   "https://.*/[^/]*    https://BBBB/B/B/B/"
 
     def test_recursive(self):
         fetcher = bb.fetch.FetchData("https://downloads.yoctoproject.org/releases/bitbake/bitbake-1.0.tar.gz", self.d)
@@ -495,15 +514,15 @@
 class GitDownloadDirectoryNamingTest(FetcherTest):
     def setUp(self):
         super(GitDownloadDirectoryNamingTest, self).setUp()
-        self.recipe_url = "git://git.openembedded.org/bitbake"
+        self.recipe_url = "git://git.openembedded.org/bitbake;branch=master"
         self.recipe_dir = "git.openembedded.org.bitbake"
-        self.mirror_url = "git://github.com/openembedded/bitbake.git;protocol=https"
+        self.mirror_url = "git://github.com/openembedded/bitbake.git;protocol=https;branch=master"
         self.mirror_dir = "github.com.openembedded.bitbake.git"
 
         self.d.setVar('SRCREV', '82ea737a0b42a8b53e11c9cde141e9e9c0bd8c40')
 
     def setup_mirror_rewrite(self):
-        self.d.setVar("PREMIRRORS", self.recipe_url + " " + self.mirror_url + " \n")
+        self.d.setVar("PREMIRRORS", self.recipe_url + " " + self.mirror_url)
 
     @skipIfNoNetwork()
     def test_that_directory_is_named_after_recipe_url_when_no_mirroring_is_used(self):
@@ -543,16 +562,16 @@
 class TarballNamingTest(FetcherTest):
     def setUp(self):
         super(TarballNamingTest, self).setUp()
-        self.recipe_url = "git://git.openembedded.org/bitbake"
+        self.recipe_url = "git://git.openembedded.org/bitbake;branch=master"
         self.recipe_tarball = "git2_git.openembedded.org.bitbake.tar.gz"
-        self.mirror_url = "git://github.com/openembedded/bitbake.git;protocol=https"
+        self.mirror_url = "git://github.com/openembedded/bitbake.git;protocol=https;branch=master"
         self.mirror_tarball = "git2_github.com.openembedded.bitbake.git.tar.gz"
 
         self.d.setVar('BB_GENERATE_MIRROR_TARBALLS', '1')
         self.d.setVar('SRCREV', '82ea737a0b42a8b53e11c9cde141e9e9c0bd8c40')
 
     def setup_mirror_rewrite(self):
-        self.d.setVar("PREMIRRORS", self.recipe_url + " " + self.mirror_url + " \n")
+        self.d.setVar("PREMIRRORS", self.recipe_url + " " + self.mirror_url)
 
     @skipIfNoNetwork()
     def test_that_the_recipe_tarball_is_created_when_no_mirroring_is_used(self):
@@ -577,9 +596,9 @@
 class GitShallowTarballNamingTest(FetcherTest):
     def setUp(self):
         super(GitShallowTarballNamingTest, self).setUp()
-        self.recipe_url = "git://git.openembedded.org/bitbake"
+        self.recipe_url = "git://git.openembedded.org/bitbake;branch=master"
         self.recipe_tarball = "gitshallow_git.openembedded.org.bitbake_82ea737-1_master.tar.gz"
-        self.mirror_url = "git://github.com/openembedded/bitbake.git;protocol=https"
+        self.mirror_url = "git://github.com/openembedded/bitbake.git;protocol=https;branch=master"
         self.mirror_tarball = "gitshallow_github.com.openembedded.bitbake.git_82ea737-1_master.tar.gz"
 
         self.d.setVar('BB_GIT_SHALLOW', '1')
@@ -587,7 +606,7 @@
         self.d.setVar('SRCREV', '82ea737a0b42a8b53e11c9cde141e9e9c0bd8c40')
 
     def setup_mirror_rewrite(self):
-        self.d.setVar("PREMIRRORS", self.recipe_url + " " + self.mirror_url + " \n")
+        self.d.setVar("PREMIRRORS", self.recipe_url + " " + self.mirror_url)
 
     @skipIfNoNetwork()
     def test_that_the_tarball_is_named_after_recipe_url_when_no_mirroring_is_used(self):
@@ -699,28 +718,23 @@
         # Create dummy local Git repo
         src_dir = tempfile.mkdtemp(dir=self.tempdir,
                                    prefix='gitfetch_localusehead_')
-        src_dir = os.path.abspath(src_dir)
-        bb.process.run("git init", cwd=src_dir)
-        bb.process.run("git config user.email 'you@example.com'", cwd=src_dir)
-        bb.process.run("git config user.name 'Your Name'", cwd=src_dir)
-        bb.process.run("git commit --allow-empty -m'Dummy commit'",
-                       cwd=src_dir)
+        self.gitdir = os.path.abspath(src_dir)
+        self.git_init()
+        self.git(['commit', '--allow-empty', '-m', 'Dummy commit'])
         # Use other branch than master
-        bb.process.run("git checkout -b my-devel", cwd=src_dir)
-        bb.process.run("git commit --allow-empty -m'Dummy commit 2'",
-                       cwd=src_dir)
-        stdout = bb.process.run("git rev-parse HEAD", cwd=src_dir)
-        orig_rev = stdout[0].strip()
+        self.git(['checkout', '-b', 'my-devel'])
+        self.git(['commit', '--allow-empty', '-m', 'Dummy commit 2'])
+        orig_rev = self.git(['rev-parse', 'HEAD']).strip()
 
         # Fetch and check revision
         self.d.setVar("SRCREV", "AUTOINC")
-        url = "git://" + src_dir + ";protocol=file;" + suffix
+        self.d.setVar("__BBSEENSRCREV", "1")
+        url = "git://" + self.gitdir + ";branch=master;protocol=file;" + suffix
         fetcher = bb.fetch.Fetch([url], self.d)
         fetcher.download()
         fetcher.unpack(self.unpackdir)
-        stdout = bb.process.run("git rev-parse HEAD",
-                                cwd=os.path.join(self.unpackdir, 'git'))
-        unpack_rev = stdout[0].strip()
+        unpack_rev = self.git(['rev-parse', 'HEAD'],
+                              cwd=os.path.join(self.unpackdir, 'git')).strip()
         self.assertEqual(orig_rev, unpack_rev)
 
     def test_local_gitfetch_usehead(self):
@@ -867,14 +881,14 @@
 
     @skipIfNoNetwork()
     def test_fetch_mirror_of_mirror(self):
-        self.d.setVar("MIRRORS", "http://.*/.* http://invalid2.yoctoproject.org/ \n http://invalid2.yoctoproject.org/.* https://downloads.yoctoproject.org/releases/bitbake")
+        self.d.setVar("MIRRORS", "http://.*/.* http://invalid2.yoctoproject.org/ http://invalid2.yoctoproject.org/.* https://downloads.yoctoproject.org/releases/bitbake")
         fetcher = bb.fetch.Fetch(["http://invalid.yoctoproject.org/releases/bitbake/bitbake-1.0.tar.gz"], self.d)
         fetcher.download()
         self.assertEqual(os.path.getsize(self.dldir + "/bitbake-1.0.tar.gz"), 57749)
 
     @skipIfNoNetwork()
     def test_fetch_file_mirror_of_mirror(self):
-        self.d.setVar("MIRRORS", "http://.*/.* file:///some1where/ \n file:///some1where/.* file://some2where/ \n file://some2where/.* https://downloads.yoctoproject.org/releases/bitbake")
+        self.d.setVar("MIRRORS", "http://.*/.* file:///some1where/ file:///some1where/.* file://some2where/ file://some2where/.* https://downloads.yoctoproject.org/releases/bitbake")
         fetcher = bb.fetch.Fetch(["http://invalid.yoctoproject.org/releases/bitbake/bitbake-1.0.tar.gz"], self.d)
         os.mkdir(self.dldir + "/some2where")
         fetcher.download()
@@ -920,7 +934,8 @@
     def gitfetcher(self, url1, url2):
         def checkrevision(self, fetcher):
             fetcher.unpack(self.unpackdir)
-            revision = bb.process.run("git rev-parse HEAD", shell=True, cwd=self.unpackdir + "/git")[0].strip()
+            revision = self.git(['rev-parse', 'HEAD'],
+                                cwd=os.path.join(self.unpackdir, 'git')).strip()
             self.assertEqual(revision, "270a05b0b4ba0959fe0624d2a4885d7b70426da5")
 
         self.d.setVar("BB_GENERATE_MIRROR_TARBALLS", "1")
@@ -938,19 +953,19 @@
 
     @skipIfNoNetwork()
     def test_gitfetch(self):
-        url1 = url2 = "git://git.openembedded.org/bitbake"
+        url1 = url2 = "git://git.openembedded.org/bitbake;branch=master"
         self.gitfetcher(url1, url2)
 
     @skipIfNoNetwork()
     def test_gitfetch_goodsrcrev(self):
         # SRCREV is set but matches rev= parameter
-        url1 = url2 = "git://git.openembedded.org/bitbake;rev=270a05b0b4ba0959fe0624d2a4885d7b70426da5"
+        url1 = url2 = "git://git.openembedded.org/bitbake;rev=270a05b0b4ba0959fe0624d2a4885d7b70426da5;branch=master"
         self.gitfetcher(url1, url2)
 
     @skipIfNoNetwork()
     def test_gitfetch_badsrcrev(self):
         # SRCREV is set but does not match rev= parameter
-        url1 = url2 = "git://git.openembedded.org/bitbake;rev=dead05b0b4ba0959fe0624d2a4885d7b70426da5"
+        url1 = url2 = "git://git.openembedded.org/bitbake;rev=dead05b0b4ba0959fe0624d2a4885d7b70426da5;branch=master"
         self.assertRaises(bb.fetch.FetchError, self.gitfetcher, url1, url2)
 
     @skipIfNoNetwork()
@@ -965,7 +980,7 @@
         # `usehead=1' and instead fetch the specified SRCREV. See
         # test_local_gitfetch_usehead() for a positive use of the usehead
         # feature.
-        url = "git://git.openembedded.org/bitbake;usehead=1"
+        url = "git://git.openembedded.org/bitbake;usehead=1;branch=master"
         self.assertRaises(bb.fetch.ParameterError, self.gitfetcher, url, url)
 
     @skipIfNoNetwork()
@@ -974,20 +989,20 @@
         # `usehead=1' and instead fetch the specified SRCREV. See
         # test_local_gitfetch_usehead() for a positive use of the usehead
         # feature.
-        url = "git://git.openembedded.org/bitbake;usehead=1;name=newName"
+        url = "git://git.openembedded.org/bitbake;usehead=1;name=newName;branch=master"
         self.assertRaises(bb.fetch.ParameterError, self.gitfetcher, url, url)
 
     @skipIfNoNetwork()
     def test_gitfetch_finds_local_tarball_for_mirrored_url_when_previous_downloaded_by_the_recipe_url(self):
-        recipeurl = "git://git.openembedded.org/bitbake"
-        mirrorurl = "git://someserver.org/bitbake"
-        self.d.setVar("PREMIRRORS", "git://someserver.org/bitbake git://git.openembedded.org/bitbake \n")
+        recipeurl = "git://git.openembedded.org/bitbake;branch=master"
+        mirrorurl = "git://someserver.org/bitbake;branch=master"
+        self.d.setVar("PREMIRRORS", "git://someserver.org/bitbake git://git.openembedded.org/bitbake")
         self.gitfetcher(recipeurl, mirrorurl)
 
     @skipIfNoNetwork()
     def test_gitfetch_finds_local_tarball_when_previous_downloaded_from_a_premirror(self):
-        recipeurl = "git://someserver.org/bitbake"
-        self.d.setVar("PREMIRRORS", "git://someserver.org/bitbake git://git.openembedded.org/bitbake \n")
+        recipeurl = "git://someserver.org/bitbake;branch=master"
+        self.d.setVar("PREMIRRORS", "git://someserver.org/bitbake git://git.openembedded.org/bitbake")
         self.gitfetcher(recipeurl, recipeurl)
 
     @skipIfNoNetwork()
@@ -996,16 +1011,16 @@
         recipeurl = "git://someserver.org/bitbake"
         self.sourcedir = self.unpackdir.replace("unpacked", "sourcemirror.git")
         os.chdir(self.tempdir)
-        bb.process.run("git clone %s %s 2> /dev/null" % (realurl, self.sourcedir), shell=True)
-        self.d.setVar("PREMIRRORS", "%s git://%s;protocol=file \n" % (recipeurl, self.sourcedir))
+        self.git(['clone', realurl, self.sourcedir], cwd=self.tempdir)
+        self.d.setVar("PREMIRRORS", "%s git://%s;protocol=file" % (recipeurl, self.sourcedir))
         self.gitfetcher(recipeurl, recipeurl)
 
     @skipIfNoNetwork()
     def test_git_submodule(self):
         # URL with ssh submodules
-        url = "gitsm://git.yoctoproject.org/git-submodule-test;branch=ssh-gitsm-tests;rev=049da4a6cb198d7c0302e9e8b243a1443cb809a7"
+        url = "gitsm://git.yoctoproject.org/git-submodule-test;branch=ssh-gitsm-tests;rev=049da4a6cb198d7c0302e9e8b243a1443cb809a7;branch=master"
         # Original URL (comment this if you have ssh access to git.yoctoproject.org)
-        url = "gitsm://git.yoctoproject.org/git-submodule-test;branch=master;rev=a2885dd7d25380d23627e7544b7bbb55014b16ee"
+        url = "gitsm://git.yoctoproject.org/git-submodule-test;branch=master;rev=a2885dd7d25380d23627e7544b7bbb55014b16ee;branch=master"
         fetcher = bb.fetch.Fetch([url], self.d)
         fetcher.download()
         # Previous cwd has been deleted
@@ -1095,7 +1110,7 @@
         """ Prevent regression on deeply nested submodules not being checked out properly, even though they were fetched. """
 
         # This repository also has submodules where the module (name), path and url do not align
-        url = "gitsm://github.com/azure/iotedge.git;protocol=https;rev=d76e0316c6f324345d77c48a83ce836d09392699"
+        url = "gitsm://github.com/azure/iotedge.git;protocol=https;rev=d76e0316c6f324345d77c48a83ce836d09392699;branch=main"
         fetcher = bb.fetch.Fetch([url], self.d)
         fetcher.download()
         # Previous cwd has been deleted
@@ -1201,43 +1216,43 @@
 class TrustedNetworksTest(FetcherTest):
     def test_trusted_network(self):
         # Ensure trusted_network returns False when the host IS in the list.
-        url = "git://Someserver.org/foo;rev=1"
+        url = "git://Someserver.org/foo;rev=1;branch=master"
         self.d.setVar("BB_ALLOWED_NETWORKS", "server1.org someserver.org server2.org server3.org")
         self.assertTrue(bb.fetch.trusted_network(self.d, url))
 
     def test_wild_trusted_network(self):
         # Ensure trusted_network returns true when the *.host IS in the list.
-        url = "git://Someserver.org/foo;rev=1"
+        url = "git://Someserver.org/foo;rev=1;branch=master"
         self.d.setVar("BB_ALLOWED_NETWORKS", "server1.org *.someserver.org server2.org server3.org")
         self.assertTrue(bb.fetch.trusted_network(self.d, url))
 
     def test_prefix_wild_trusted_network(self):
         # Ensure trusted_network returns true when the prefix matches *.host.
-        url = "git://git.Someserver.org/foo;rev=1"
+        url = "git://git.Someserver.org/foo;rev=1;branch=master"
         self.d.setVar("BB_ALLOWED_NETWORKS", "server1.org *.someserver.org server2.org server3.org")
         self.assertTrue(bb.fetch.trusted_network(self.d, url))
 
     def test_two_prefix_wild_trusted_network(self):
         # Ensure trusted_network returns true when the prefix matches *.host.
-        url = "git://something.git.Someserver.org/foo;rev=1"
+        url = "git://something.git.Someserver.org/foo;rev=1;branch=master"
         self.d.setVar("BB_ALLOWED_NETWORKS", "server1.org *.someserver.org server2.org server3.org")
         self.assertTrue(bb.fetch.trusted_network(self.d, url))
 
     def test_port_trusted_network(self):
         # Ensure trusted_network returns True, even if the url specifies a port.
-        url = "git://someserver.org:8080/foo;rev=1"
+        url = "git://someserver.org:8080/foo;rev=1;branch=master"
         self.d.setVar("BB_ALLOWED_NETWORKS", "someserver.org")
         self.assertTrue(bb.fetch.trusted_network(self.d, url))
 
     def test_untrusted_network(self):
         # Ensure trusted_network returns False when the host is NOT in the list.
-        url = "git://someserver.org/foo;rev=1"
+        url = "git://someserver.org/foo;rev=1;branch=master"
         self.d.setVar("BB_ALLOWED_NETWORKS", "server1.org server2.org server3.org")
         self.assertFalse(bb.fetch.trusted_network(self.d, url))
 
     def test_wild_untrusted_network(self):
         # Ensure trusted_network returns False when the host is NOT in the list.
-        url = "git://*.someserver.org/foo;rev=1"
+        url = "git://*.someserver.org/foo;rev=1;branch=master"
         self.d.setVar("BB_ALLOWED_NETWORKS", "server1.org server2.org server3.org")
         self.assertFalse(bb.fetch.trusted_network(self.d, url))
 
@@ -1275,32 +1290,32 @@
             : "1.99.4",
         # version pattern "vX.Y"
         # mirror of git.infradead.org since network issues interfered with testing
-        ("mtd-utils", "git://git.yoctoproject.org/mtd-utils.git", "ca39eb1d98e736109c64ff9c1aa2a6ecca222d8f", "")
+        ("mtd-utils", "git://git.yoctoproject.org/mtd-utils.git;branch=master", "ca39eb1d98e736109c64ff9c1aa2a6ecca222d8f", "")
             : "1.5.0",
         # version pattern "pkg_name-X.Y"
         # mirror of git://anongit.freedesktop.org/git/xorg/proto/presentproto since network issues interfered with testing
-        ("presentproto", "git://git.yoctoproject.org/bbfetchtests-presentproto", "24f3a56e541b0a9e6c6ee76081f441221a120ef9", "")
+        ("presentproto", "git://git.yoctoproject.org/bbfetchtests-presentproto;branch=master", "24f3a56e541b0a9e6c6ee76081f441221a120ef9", "")
             : "1.0",
         # version pattern "pkg_name-vX.Y.Z"
-        ("dtc", "git://git.yoctoproject.org/bbfetchtests-dtc.git", "65cc4d2748a2c2e6f27f1cf39e07a5dbabd80ebf", "")
+        ("dtc", "git://git.yoctoproject.org/bbfetchtests-dtc.git;branch=master", "65cc4d2748a2c2e6f27f1cf39e07a5dbabd80ebf", "")
             : "1.4.0",
         # combination version pattern
-        ("sysprof", "git://gitlab.gnome.org/GNOME/sysprof.git;protocol=https", "cd44ee6644c3641507fb53b8a2a69137f2971219", "")
+        ("sysprof", "git://gitlab.gnome.org/GNOME/sysprof.git;protocol=https;branch=master", "cd44ee6644c3641507fb53b8a2a69137f2971219", "")
             : "1.2.0",
         ("u-boot-mkimage", "git://git.denx.de/u-boot.git;branch=master;protocol=git", "62c175fbb8a0f9a926c88294ea9f7e88eb898f6c", "")
             : "2014.01",
         # version pattern "yyyymmdd"
-        ("mobile-broadband-provider-info", "git://gitlab.gnome.org/GNOME/mobile-broadband-provider-info.git;protocol=https", "4ed19e11c2975105b71b956440acdb25d46a347d", "")
+        ("mobile-broadband-provider-info", "git://gitlab.gnome.org/GNOME/mobile-broadband-provider-info.git;protocol=https;branch=master", "4ed19e11c2975105b71b956440acdb25d46a347d", "")
             : "20120614",
         # packages with a valid UPSTREAM_CHECK_GITTAGREGEX
                 # mirror of git://anongit.freedesktop.org/xorg/driver/xf86-video-omap since network issues interfered with testing
-        ("xf86-video-omap", "git://git.yoctoproject.org/bbfetchtests-xf86-video-omap", "ae0394e687f1a77e966cf72f895da91840dffb8f", r"(?P<pver>(\d+\.(\d\.?)*))")
+        ("xf86-video-omap", "git://git.yoctoproject.org/bbfetchtests-xf86-video-omap;branch=master", "ae0394e687f1a77e966cf72f895da91840dffb8f", r"(?P<pver>(\d+\.(\d\.?)*))")
             : "0.4.3",
-        ("build-appliance-image", "git://git.yoctoproject.org/poky", "b37dd451a52622d5b570183a81583cc34c2ff555", r"(?P<pver>(([0-9][\.|_]?)+[0-9]))")
+        ("build-appliance-image", "git://git.yoctoproject.org/poky;branch=master", "b37dd451a52622d5b570183a81583cc34c2ff555", r"(?P<pver>(([0-9][\.|_]?)+[0-9]))")
             : "11.0.0",
         ("chkconfig-alternatives-native", "git://github.com/kergoth/chkconfig;branch=sysroot;protocol=https", "cd437ecbd8986c894442f8fce1e0061e20f04dee", r"chkconfig\-(?P<pver>((\d+[\.\-_]*)+))")
             : "1.3.59",
-        ("remake", "git://github.com/rocky/remake.git;protocol=https", "f05508e521987c8494c92d9c2871aec46307d51d", r"(?P<pver>(\d+\.(\d+\.)*\d*(\+dbg\d+(\.\d+)*)*))")
+        ("remake", "git://github.com/rocky/remake.git;protocol=https;branch=master", "f05508e521987c8494c92d9c2871aec46307d51d", r"(?P<pver>(\d+\.(\d+\.)*\d*(\+dbg\d+(\.\d+)*)*))")
             : "3.82+dbg0.9",
     }
 
@@ -1437,9 +1452,7 @@
         FetcherTest.setUp(self)
         self.gitdir = os.path.join(self.tempdir, 'gitshallow')
         bb.utils.mkdirhier(self.gitdir)
-        bb.process.run('git init', cwd=self.gitdir)
-        bb.process.run('git config user.email "you@example.com"', cwd=self.gitdir)
-        bb.process.run('git config user.name "Your Name"', cwd=self.gitdir)
+        self.git_init()
 
     def assertRefs(self, expected_refs):
         actual_refs = self.git(['for-each-ref', '--format=%(refname)']).splitlines()
@@ -1453,13 +1466,6 @@
         actual_count = len(revs.splitlines())
         self.assertEqual(expected_count, actual_count, msg='Object count `%d` is not the expected `%d`' % (actual_count, expected_count))
 
-    def git(self, cmd):
-        if isinstance(cmd, str):
-            cmd = 'git ' + cmd
-        else:
-            cmd = ['git'] + cmd
-        return bb.process.run(cmd, cwd=self.gitdir)[0]
-
     def make_shallow(self, args=None):
         if args is None:
             args = ['HEAD']
@@ -1562,15 +1568,13 @@
         self.srcdir = os.path.join(self.tempdir, 'gitsource')
 
         bb.utils.mkdirhier(self.srcdir)
-        self.git('init', cwd=self.srcdir)
-        self.git('config user.email "you@example.com"', cwd=self.srcdir)
-        self.git('config user.name "Your Name"', cwd=self.srcdir)
+        self.git_init(cwd=self.srcdir)
         self.d.setVar('WORKDIR', self.tempdir)
         self.d.setVar('S', self.gitdir)
         self.d.delVar('PREMIRRORS')
         self.d.delVar('MIRRORS')
 
-        uri = 'git://%s;protocol=file;subdir=${S}' % self.srcdir
+        uri = 'git://%s;protocol=file;subdir=${S};branch=master' % self.srcdir
         self.d.setVar('SRC_URI', uri)
         self.d.setVar('SRCREV', '${AUTOREV}')
         self.d.setVar('AUTOREV', '${@bb.fetch2.get_autorev(d)}')
@@ -1578,6 +1582,7 @@
         self.d.setVar('BB_GIT_SHALLOW', '1')
         self.d.setVar('BB_GENERATE_MIRROR_TARBALLS', '0')
         self.d.setVar('BB_GENERATE_SHALLOW_TARBALLS', '1')
+        self.d.setVar("__BBSEENSRCREV", "1")
 
     def assertRefs(self, expected_refs, cwd=None):
         if cwd is None:
@@ -1595,15 +1600,6 @@
         actual_count = len(revs.splitlines())
         self.assertEqual(expected_count, actual_count, msg='Object count `%d` is not the expected `%d`' % (actual_count, expected_count))
 
-    def git(self, cmd, cwd=None):
-        if isinstance(cmd, str):
-            cmd = 'git ' + cmd
-        else:
-            cmd = ['git'] + cmd
-        if cwd is None:
-            cwd = self.gitdir
-        return bb.process.run(cmd, cwd=cwd)[0]
-
     def add_empty_file(self, path, cwd=None, msg=None):
         if msg is None:
             msg = path
@@ -1798,9 +1794,7 @@
 
         smdir = os.path.join(self.tempdir, 'gitsubmodule')
         bb.utils.mkdirhier(smdir)
-        self.git('init', cwd=smdir)
-        self.git('config user.email "you@example.com"', cwd=smdir)
-        self.git('config user.name "Your Name"', cwd=smdir)
+        self.git_init(cwd=smdir)
         # Make this look like it was cloned from a remote...
         self.git('config --add remote.origin.url "%s"' % smdir, cwd=smdir)
         self.git('config --add remote.origin.fetch "+refs/heads/*:refs/remotes/origin/*"', cwd=smdir)
@@ -1812,7 +1806,7 @@
         self.git('submodule update', cwd=self.srcdir)
         self.git('commit -m submodule -a', cwd=self.srcdir)
 
-        uri = 'gitsm://%s;protocol=file;subdir=${S}' % self.srcdir
+        uri = 'gitsm://%s;protocol=file;subdir=${S};branch=master' % self.srcdir
         fetcher, ud = self.fetch_shallow(uri)
 
         # Verify the main repository is shallow
@@ -1830,9 +1824,7 @@
 
         smdir = os.path.join(self.tempdir, 'gitsubmodule')
         bb.utils.mkdirhier(smdir)
-        self.git('init', cwd=smdir)
-        self.git('config user.email "you@example.com"', cwd=smdir)
-        self.git('config user.name "Your Name"', cwd=smdir)
+        self.git_init(cwd=smdir)
         # Make this look like it was cloned from a remote...
         self.git('config --add remote.origin.url "%s"' % smdir, cwd=smdir)
         self.git('config --add remote.origin.fetch "+refs/heads/*:refs/remotes/origin/*"', cwd=smdir)
@@ -1852,7 +1844,7 @@
         # Set up the mirror
         mirrordir = os.path.join(self.tempdir, 'mirror')
         bb.utils.rename(self.dldir, mirrordir)
-        self.d.setVar('PREMIRRORS', 'gitsm://.*/.* file://%s/\n' % mirrordir)
+        self.d.setVar('PREMIRRORS', 'gitsm://.*/.* file://%s/' % mirrordir)
 
         # Fetch from the mirror
         bb.utils.remove(self.dldir, recurse=True)
@@ -1878,7 +1870,7 @@
             self.git('commit --author "Foo Bar <foo@bar>" -m annex-c -a', cwd=self.srcdir)
             bb.process.run('chmod u+w -R %s' % self.srcdir)
 
-            uri = 'gitannex://%s;protocol=file;subdir=${S}' % self.srcdir
+            uri = 'gitannex://%s;protocol=file;subdir=${S};branch=master' % self.srcdir
             fetcher, ud = self.fetch_shallow(uri)
 
             self.assertRevCount(1)
@@ -1967,7 +1959,7 @@
         # Set up the mirror
         mirrordir = os.path.join(self.tempdir, 'mirror')
         bb.utils.mkdirhier(mirrordir)
-        self.d.setVar('PREMIRRORS', 'git://.*/.* file://%s/\n' % mirrordir)
+        self.d.setVar('PREMIRRORS', 'git://.*/.* file://%s/' % mirrordir)
 
         bb.utils.rename(os.path.join(self.dldir, mirrortarball),
                   os.path.join(mirrordir, mirrortarball))
@@ -2125,7 +2117,7 @@
         self.d.setVar('SRCREV', 'e5939ff608b95cdd4d0ab0e1935781ab9a276ac0')
         self.d.setVar('BB_GIT_SHALLOW', '1')
         self.d.setVar('BB_GENERATE_SHALLOW_TARBALLS', '1')
-        fetcher = bb.fetch.Fetch(["git://git.yoctoproject.org/fstests"], self.d)
+        fetcher = bb.fetch.Fetch(["git://git.yoctoproject.org/fstests;branch=master"], self.d)
         fetcher.download()
 
         bb.utils.remove(self.dldir + "/*.tar.gz")
@@ -2140,7 +2132,7 @@
 
         self.gitdir = os.path.join(self.tempdir, 'git')
         self.srcdir = os.path.join(self.tempdir, 'gitsource')
-        
+
         self.d.setVar('WORKDIR', self.tempdir)
         self.d.setVar('S', self.gitdir)
         self.d.delVar('PREMIRRORS')
@@ -2148,25 +2140,15 @@
 
         self.d.setVar('SRCREV', '${AUTOREV}')
         self.d.setVar('AUTOREV', '${@bb.fetch2.get_autorev(d)}')
+        self.d.setVar("__BBSEENSRCREV", "1")
 
         bb.utils.mkdirhier(self.srcdir)
-        self.git('init', cwd=self.srcdir)
-        self.git('config user.email "you@example.com"', cwd=self.srcdir)
-        self.git('config user.name "Your Name"', cwd=self.srcdir)
+        self.git_init(cwd=self.srcdir)
         with open(os.path.join(self.srcdir, '.gitattributes'), 'wt') as attrs:
             attrs.write('*.mp3 filter=lfs -text')
         self.git(['add', '.gitattributes'], cwd=self.srcdir)
         self.git(['commit', '-m', "attributes", '.gitattributes'], cwd=self.srcdir)
 
-    def git(self, cmd, cwd=None):
-        if isinstance(cmd, str):
-            cmd = 'git ' + cmd
-        else:
-            cmd = ['git'] + cmd
-        if cwd is None:
-            cwd = self.gitdir
-        return bb.process.run(cmd, cwd=cwd)[0]
-
     def fetch(self, uri=None, download=True):
         uris = self.d.getVar('SRC_URI').split()
         uri = uris[0]
@@ -2181,7 +2163,7 @@
     def test_lfs_enabled(self):
         import shutil
 
-        uri = 'git://%s;protocol=file;lfs=1' % self.srcdir
+        uri = 'git://%s;protocol=file;lfs=1;branch=master' % self.srcdir
         self.d.setVar('SRC_URI', uri)
 
         # Careful: suppress initial attempt at downloading until
@@ -2206,7 +2188,7 @@
     def test_lfs_disabled(self):
         import shutil
 
-        uri = 'git://%s;protocol=file;lfs=0' % self.srcdir
+        uri = 'git://%s;protocol=file;lfs=0;branch=master' % self.srcdir
         self.d.setVar('SRC_URI', uri)
 
         # In contrast to test_lfs_enabled(), allow the implicit download
@@ -2230,13 +2212,13 @@
 
 class GitURLWithSpacesTest(FetcherTest):
     test_git_urls = {
-        "git://tfs-example.org:22/tfs/example%20path/example.git" : {
-            'url': 'git://tfs-example.org:22/tfs/example%20path/example.git',
+        "git://tfs-example.org:22/tfs/example%20path/example.git;branch=master" : {
+            'url': 'git://tfs-example.org:22/tfs/example%20path/example.git;branch=master',
             'gitsrcname': 'tfs-example.org.22.tfs.example_path.example.git',
             'path': '/tfs/example path/example.git'
         },
-        "git://tfs-example.org:22/tfs/example%20path/example%20repo.git" : {
-            'url': 'git://tfs-example.org:22/tfs/example%20path/example%20repo.git',
+        "git://tfs-example.org:22/tfs/example%20path/example%20repo.git;branch=master" : {
+            'url': 'git://tfs-example.org:22/tfs/example%20path/example%20repo.git;branch=master',
             'gitsrcname': 'tfs-example.org.22.tfs.example_path.example_repo.git',
             'path': '/tfs/example path/example repo.git'
         }
@@ -2261,6 +2243,7 @@
             self.assertEqual(ud.fullmirror, os.path.join(self.dldir, "git2_" + ref['gitsrcname'] + '.tar.gz'))
 
 class CrateTest(FetcherTest):
+    @skipIfNoNetwork()
     def test_crate_url(self):
 
         uri = "crate://crates.io/glob/0.2.11"
@@ -2277,6 +2260,7 @@
         self.assertTrue(os.path.exists(self.tempdir + "/cargo_home/bitbake/glob-0.2.11/.cargo-checksum.json"))
         self.assertTrue(os.path.exists(self.tempdir + "/cargo_home/bitbake/glob-0.2.11/src/lib.rs"))
 
+    @skipIfNoNetwork()
     def test_crate_url_multi(self):
 
         uri = "crate://crates.io/glob/0.2.11 crate://crates.io/time/0.1.35"
@@ -2299,7 +2283,7 @@
     def skipIfNoNpm():
         import shutil
         if not shutil.which('npm'):
-            return unittest.skip('npm not installed, tests being skipped')
+            return unittest.skip('npm not installed')
         return lambda f: f
 
     @skipIfNoNpm()
@@ -2344,15 +2328,24 @@
         ud = fetcher.ud[fetcher.urls[0]]
         fetcher.download()
         self.assertTrue(os.path.exists(ud.localpath))
-        # Setup the mirror
-        pkgname = os.path.basename(ud.proxy.urls[0].split(';')[0])
+
+        # Setup the mirror by renaming the download directory
         mirrordir = os.path.join(self.tempdir, 'mirror')
-        bb.utils.mkdirhier(mirrordir)
-        os.replace(ud.localpath, os.path.join(mirrordir, pkgname))
-        self.d.setVar('PREMIRRORS', 'https?$://.*/.* file://%s/\n' % mirrordir)
+        bb.utils.rename(self.dldir, mirrordir)
+        os.mkdir(self.dldir)
+
+        # Configure the premirror to be used
+        self.d.setVar('PREMIRRORS', 'https?$://.*/.* file://%s/npm2' % mirrordir)
         self.d.setVar('BB_FETCH_PREMIRRORONLY', '1')
+
         # Fetch again
         self.assertFalse(os.path.exists(ud.localpath))
+        # The npm fetcher doesn't handle that the .resolved file disappears
+        # while the fetcher object exists, which it does when we rename the
+        # download directory to "mirror" above. Thus we need a new fetcher to go
+        # with the now empty download directory.
+        fetcher = bb.fetch.Fetch([url], self.d)
+        ud = fetcher.ud[fetcher.urls[0]]
         fetcher.download()
         self.assertTrue(os.path.exists(ud.localpath))
 
@@ -2370,7 +2363,7 @@
         bb.utils.mkdirhier(mirrordir)
         mirrorfilename = os.path.join(mirrordir, os.path.basename(ud.localpath))
         os.replace(ud.localpath, mirrorfilename)
-        self.d.setVar('PREMIRRORS', 'https?$://.*/.* file://%s\n' % mirrorfilename)
+        self.d.setVar('PREMIRRORS', 'https?$://.*/.* file://%s' % mirrorfilename)
         self.d.setVar('BB_FETCH_PREMIRRORONLY', '1')
         # Fetch again
         self.assertFalse(os.path.exists(ud.localpath))
@@ -2390,7 +2383,7 @@
         mirrordir = os.path.join(self.tempdir, 'mirror')
         bb.utils.mkdirhier(mirrordir)
         os.replace(ud.localpath, os.path.join(mirrordir, os.path.basename(ud.localpath)))
-        self.d.setVar('MIRRORS', 'https?$://.*/.* file://%s/\n' % mirrordir)
+        self.d.setVar('MIRRORS', 'https?$://.*/.* file://%s/' % mirrordir)
         # Update the resolved url to an invalid url
         with open(ud.resolvefile, 'r') as f:
             url = f.read()
@@ -2409,7 +2402,7 @@
         url = 'npm://registry.npmjs.org;package=@savoirfairelinux/node-server-example;version=1.0.0;destsuffix=foo/bar;downloadfilename=foo-bar.tgz'
         fetcher = bb.fetch.Fetch([url], self.d)
         fetcher.download()
-        self.assertTrue(os.path.exists(os.path.join(self.dldir, 'foo-bar.tgz')))
+        self.assertTrue(os.path.exists(os.path.join(self.dldir, 'npm2', 'foo-bar.tgz')))
         fetcher.unpack(self.unpackdir)
         unpackdir = os.path.join(self.unpackdir, 'foo', 'bar')
         self.assertTrue(os.path.exists(os.path.join(unpackdir, 'package.json')))
@@ -2706,7 +2699,7 @@
         mirrordir = os.path.join(self.tempdir, 'mirror')
         bb.utils.mkdirhier(mirrordir)
         os.replace(ud.localpath, os.path.join(mirrordir, os.path.basename(ud.localpath)))
-        self.d.setVar('PREMIRRORS', 'https?$://.*/.* file://%s/\n' % mirrordir)
+        self.d.setVar('PREMIRRORS', 'https?$://.*/.* file://%s/' % mirrordir)
         self.d.setVar('BB_FETCH_PREMIRRORONLY', '1')
         # Fetch again
         self.assertFalse(os.path.exists(ud.localpath))
@@ -2735,7 +2728,7 @@
         mirrordir = os.path.join(self.tempdir, 'mirror')
         bb.utils.mkdirhier(mirrordir)
         os.replace(ud.localpath, os.path.join(mirrordir, os.path.basename(ud.localpath)))
-        self.d.setVar('MIRRORS', 'https?$://.*/.* file://%s/\n' % mirrordir)
+        self.d.setVar('MIRRORS', 'https?$://.*/.* file://%s/' % mirrordir)
         # Fetch again with invalid url
         self.assertFalse(os.path.exists(ud.localpath))
         swfile = self.create_shrinkwrap_file({
@@ -2754,8 +2747,9 @@
 class GitSharedTest(FetcherTest):
     def setUp(self):
         super(GitSharedTest, self).setUp()
-        self.recipe_url = "git://git.openembedded.org/bitbake"
+        self.recipe_url = "git://git.openembedded.org/bitbake;branch=master"
         self.d.setVar('SRCREV', '82ea737a0b42a8b53e11c9cde141e9e9c0bd8c40')
+        self.d.setVar("__BBSEENSRCREV", "1")
 
     @skipIfNoNetwork()
     def test_shared_unpack(self):
diff --git a/poky/bitbake/lib/bb/tests/runqueue-tests/conf/bitbake.conf b/poky/bitbake/lib/bb/tests/runqueue-tests/conf/bitbake.conf
index 2645c0e..05d7fd0 100644
--- a/poky/bitbake/lib/bb/tests/runqueue-tests/conf/bitbake.conf
+++ b/poky/bitbake/lib/bb/tests/runqueue-tests/conf/bitbake.conf
@@ -12,6 +12,6 @@
 T = "${TMPDIR}/workdir/${PN}/temp"
 BB_NUMBER_THREADS = "4"
 
-BB_HASHBASE_WHITELIST = "BB_CURRENT_MC BB_HASHSERVE TMPDIR TOPDIR SLOWTASKS SSTATEVALID FILE BB_CURRENTTASK"
+BB_BASEHASH_IGNORE_VARS = "BB_CURRENT_MC BB_HASHSERVE TMPDIR TOPDIR SLOWTASKS SSTATEVALID FILE BB_CURRENTTASK"
 
 include conf/multiconfig/${BB_CURRENT_MC}.conf
diff --git a/poky/bitbake/lib/bb/tests/runqueue.py b/poky/bitbake/lib/bb/tests/runqueue.py
index 35d5a84..061a5a1 100644
--- a/poky/bitbake/lib/bb/tests/runqueue.py
+++ b/poky/bitbake/lib/bb/tests/runqueue.py
@@ -29,14 +29,14 @@
     def run_bitbakecmd(self, cmd, builddir, sstatevalid="", slowtasks="", extraenv=None, cleanup=False):
         env = os.environ.copy()
         env["BBPATH"] = os.path.realpath(os.path.join(os.path.dirname(__file__), "runqueue-tests"))
-        env["BB_ENV_EXTRAWHITE"] = "SSTATEVALID SLOWTASKS TOPDIR"
+        env["BB_ENV_PASSTHROUGH_ADDITIONS"] = "SSTATEVALID SLOWTASKS TOPDIR"
         env["SSTATEVALID"] = sstatevalid
         env["SLOWTASKS"] = slowtasks
         env["TOPDIR"] = builddir
         if extraenv:
             for k in extraenv:
                 env[k] = extraenv[k]
-                env["BB_ENV_EXTRAWHITE"] = env["BB_ENV_EXTRAWHITE"] + " " + k
+                env["BB_ENV_PASSTHROUGH_ADDITIONS"] = env["BB_ENV_PASSTHROUGH_ADDITIONS"] + " " + k
         try:
             output = subprocess.check_output(cmd, env=env, stderr=subprocess.STDOUT,universal_newlines=True, cwd=builddir)
             print(output)
@@ -154,12 +154,12 @@
 
             self.shutdown(tempdir)
 
-    def test_setscenewhitelist(self):
+    def test_setscene_ignore_tasks(self):
         with tempfile.TemporaryDirectory(prefix="runqueuetest") as tempdir:
             cmd = ["bitbake", "a1"]
             extraenv = {
                 "BB_SETSCENE_ENFORCE" : "1",
-                "BB_SETSCENE_ENFORCE_WHITELIST" : "a1:do_package_write_rpm a1:do_build"
+                "BB_SETSCENE_ENFORCE_IGNORE_TASKS" : "a1:do_package_write_rpm a1:do_build"
             }
             sstatevalid = "a1:do_package a1:do_package_qa a1:do_packagedata a1:do_package_write_ipk a1:do_populate_lic a1:do_populate_sysroot"
             tasks = self.run_bitbakecmd(cmd, tempdir, sstatevalid, extraenv=extraenv)
diff --git a/poky/bitbake/lib/bb/tinfoil.py b/poky/bitbake/lib/bb/tinfoil.py
index 27a3415..02c0bab 100644
--- a/poky/bitbake/lib/bb/tinfoil.py
+++ b/poky/bitbake/lib/bb/tinfoil.py
@@ -493,7 +493,7 @@
         Wait for an event from the server for the specified time.
         A timeout of 0 means don't wait if there are no events in the queue.
         Returns the next event in the queue or None if the timeout was
-        reached. Note that in order to recieve any events you will
+        reached. Note that in order to receive any events you will
         first need to set the internal event mask using set_event_mask()
         (otherwise whatever event mask the UI set up will be in effect).
         """
@@ -761,7 +761,7 @@
                                 if parseprogress:
                                     parseprogress.update(event.progress)
                                 else:
-                                    bb.warn("Got ProcessProgress event for someting that never started?")
+                                    bb.warn("Got ProcessProgress event for something that never started?")
                                 continue
                             if isinstance(event, bb.event.ProcessFinished):
                                 if self.quiet > 1:
diff --git a/poky/bitbake/lib/bb/ui/knotty.py b/poky/bitbake/lib/bb/ui/knotty.py
index 484545a..528b8a0 100644
--- a/poky/bitbake/lib/bb/ui/knotty.py
+++ b/poky/bitbake/lib/bb/ui/knotty.py
@@ -25,7 +25,7 @@
 
 from bb.ui import uihelper
 
-featureSet = [bb.cooker.CookerFeatures.SEND_SANITYEVENTS]
+featureSet = [bb.cooker.CookerFeatures.SEND_SANITYEVENTS, bb.cooker.CookerFeatures.BASEDATASTORE_TRACKING]
 
 logger = logging.getLogger("BitBake")
 interactive = sys.stdout.isatty()
@@ -647,7 +647,7 @@
             if isinstance(event, logging.LogRecord):
                 lastprint = time.time()
                 printinterval = 5000
-                if event.levelno >= bb.msg.BBLogFormatter.ERROR:
+                if event.levelno >= bb.msg.BBLogFormatter.ERRORONCE:
                     errors = errors + 1
                     return_value = 1
                 elif event.levelno == bb.msg.BBLogFormatter.WARNING:
@@ -661,10 +661,10 @@
                         continue
 
                     # Prefix task messages with recipe/task
-                    if event.taskpid in helper.pidmap and event.levelno != bb.msg.BBLogFormatter.PLAIN:
+                    if event.taskpid in helper.pidmap and event.levelno not in [bb.msg.BBLogFormatter.PLAIN, bb.msg.BBLogFormatter.WARNONCE, bb.msg.BBLogFormatter.ERRORONCE]:
                         taskinfo = helper.running_tasks[helper.pidmap[event.taskpid]]
                         event.msg = taskinfo['title'] + ': ' + event.msg
-                if hasattr(event, 'fn'):
+                if hasattr(event, 'fn') and event.levelno not in [bb.msg.BBLogFormatter.WARNONCE, bb.msg.BBLogFormatter.ERRORONCE]:
                     event.msg = event.fn + ': ' + event.msg
                 logging.getLogger(event.name).handle(event)
                 continue
@@ -875,11 +875,11 @@
             for failure in taskfailures:
                 summary += "\n  %s" % failure
         if warnings:
-            summary += pluralise("\nSummary: There was %s WARNING message shown.",
-                                 "\nSummary: There were %s WARNING messages shown.", warnings)
+            summary += pluralise("\nSummary: There was %s WARNING message.",
+                                 "\nSummary: There were %s WARNING messages.", warnings)
         if return_value and errors:
-            summary += pluralise("\nSummary: There was %s ERROR message shown, returning a non-zero exit code.",
-                                 "\nSummary: There were %s ERROR messages shown, returning a non-zero exit code.", errors)
+            summary += pluralise("\nSummary: There was %s ERROR message, returning a non-zero exit code.",
+                                 "\nSummary: There were %s ERROR messages, returning a non-zero exit code.", errors)
         if summary and params.options.quiet == 0:
             print(summary)
 
diff --git a/poky/bitbake/lib/bb/utils.py b/poky/bitbake/lib/bb/utils.py
index 0312231..2e82561 100644
--- a/poky/bitbake/lib/bb/utils.py
+++ b/poky/bitbake/lib/bb/utils.py
@@ -253,7 +253,7 @@
     """
     Take an RDEPENDS style string of format:
     "DEPEND1 (optional version) DEPEND2 (optional version) ..."
-    skip null value and items appeared in dependancy string multiple times
+    skip null value and items appeared in dependency string multiple times
     and return a dictionary of dependencies and versions.
     """
     r = explode_dep_versions2(s)
@@ -381,7 +381,7 @@
 
         error.append("Exception: %s" % ''.join(exception))
 
-        # If the exception is from spwaning a task, let's be helpful and display
+        # If the exception is from spawning a task, let's be helpful and display
         # the output (which hopefully includes stderr).
         if isinstance(value, subprocess.CalledProcessError) and value.output:
             error.append("Subprocess output:")
@@ -402,7 +402,7 @@
         code = better_compile(code, realfile, realfile)
     try:
         exec(code, get_context(), context)
-    except (bb.BBHandledException, bb.parse.SkipRecipe, bb.data_smart.ExpansionError):
+    except (bb.BBHandledException, bb.parse.SkipRecipe, bb.data_smart.ExpansionError, bb.process.ExecutionError):
         # Error already shown so passthrough, no need for traceback
         raise
     except Exception as e:
@@ -589,8 +589,8 @@
     v = [
         'BBPATH',
         'BB_PRESERVE_ENV',
-        'BB_ENV_WHITELIST',
-        'BB_ENV_EXTRAWHITE',
+        'BB_ENV_PASSTHROUGH',
+        'BB_ENV_PASSTHROUGH_ADDITIONS',
     ]
     return v + preserved_envvars_exported()
 
@@ -621,21 +621,21 @@
 
 def approved_variables():
     """
-    Determine and return the list of whitelisted variables which are approved
+    Determine and return the list of variables which are approved
     to remain in the environment.
     """
     if 'BB_PRESERVE_ENV' in os.environ:
         return os.environ.keys()
     approved = []
-    if 'BB_ENV_WHITELIST' in os.environ:
-        approved = os.environ['BB_ENV_WHITELIST'].split()
-        approved.extend(['BB_ENV_WHITELIST'])
+    if 'BB_ENV_PASSTHROUGH' in os.environ:
+        approved = os.environ['BB_ENV_PASSTHROUGH'].split()
+        approved.extend(['BB_ENV_PASSTHROUGH'])
     else:
         approved = preserved_envvars()
-    if 'BB_ENV_EXTRAWHITE' in os.environ:
-        approved.extend(os.environ['BB_ENV_EXTRAWHITE'].split())
-        if 'BB_ENV_EXTRAWHITE' not in approved:
-            approved.extend(['BB_ENV_EXTRAWHITE'])
+    if 'BB_ENV_PASSTHROUGH_ADDITIONS' in os.environ:
+        approved.extend(os.environ['BB_ENV_PASSTHROUGH_ADDITIONS'].split())
+        if 'BB_ENV_PASSTHROUGH_ADDITIONS' not in approved:
+            approved.extend(['BB_ENV_PASSTHROUGH_ADDITIONS'])
     return approved
 
 def clean_environment():
@@ -1733,5 +1733,21 @@
         for var in envvars:
             if var in backup:
                 os.environ[var] = backup[var]
-            else:
+            elif var in os.environ:
                 del os.environ[var]
+
+def is_local_uid(uid=''):
+    """
+    Check whether uid is a local one or not.
+    Can't use pwd module since it gets all UIDs, not local ones only.
+    """
+    if not uid:
+        uid = os.getuid()
+    with open('/etc/passwd', 'r') as f:
+        for line in f:
+            line_split = line.split(':')
+            if len(line_split) < 3:
+                continue
+            if str(uid) == line_split[2]:
+                return True
+    return False