command.py: add initCooker API

initCooker is to set the cooker to the initial state with nothing
parsed.

(Bitbake rev: 8ee9c6cc47938604268242d90bd3007218f9a36e)

Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/command.py

@@ -157,6 +157,12 @@ class CommandsSync:
         value = params[1]
         command.cooker.configuration.data.setVar(varname, value)
 
+    def initCooker(self, command, params):
+        """
+        Init the cooker to initial state with nothing parsed
+        """
+        command.cooker.initialize()
+
     def resetCooker(self, command, params):
         """
         Reset the cooker to its initial state, thus forcing a reparse for

bitbake/lib/bb/cooker.py

@@ -167,6 +167,15 @@ class BBCooker:
 
         self.parser = None
 
+    def initConfigurationData(self):
+        self.configuration.data = bb.data.init()
+
+        if not self.server_registration_cb:
+            bb.data.setVar("BB_WORKERCONTEXT", "1", self.configuration.data)
+
+        filtered_keys = bb.utils.approved_variables()
+        bb.data.inheritFromOS(self.configuration.data, self.savedenv, filtered_keys)
+
     def loadConfigurationData(self):
         self.configuration.data = bb.data.init()
 
@@ -1304,6 +1313,10 @@ class BBCooker:
     def reparseFiles(self):
         return
 
+    def initialize(self):
+        self.state = state.initial
+        self.initConfigurationData()
+
     def reset(self):
         self.state = state.initial
         self.loadConfigurationData()