bitbake: cooker: Clean up init/reset configuration code

Currently the cooker event data isn't rebuilt upon reset and the cache
configuration cannot be changed after init. These are both bad things
and this patch refactors the init/reset code so that it is possible
to reconfigure the server.

(Bitbake rev: 1193b8d76fcb6cb87e9ec135a2514370d7dd90ac)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/cooker.py

@@ -93,22 +93,6 @@ class BBCooker:
 
         self.configuration = configuration
 
-        self.caches_array = []
-
-        caches_name_array = ['bb.cache:CoreRecipeInfo'] + configuration.extra_caches
-
-        # At least CoreRecipeInfo will be loaded, so caches_array will never be empty!
-        # This is the entry point, no further check needed!
-        for var in caches_name_array:
-            try:
-                module_name, cache_name = var.split(':')
-                module = __import__(module_name, fromlist=(cache_name,))
-                self.caches_array.append(getattr(module, cache_name)) 
-            except ImportError as exc:
-                logger.critical("Unable to import extra RecipeInfo '%s' from '%s': %s" % (cache_name, module_name, exc))
-                sys.exit("FATAL: Failed to import extra cache class '%s'." % cache_name)
-
-        self.data = None
         self.loadConfigurationData()
 
         # Take a lock so only one copy of bitbake can run against a given build
@@ -118,13 +102,6 @@ class BBCooker:
         if not self.lock:
             bb.fatal("Only one copy of bitbake should be run against a build directory")
 
-        #
-        # Special updated configuration we use for firing events
-        #
-        self.event_data = bb.data.createCopy(self.data)
-        bb.data.update_data(self.event_data)
-        bb.parse.init_parser(self.event_data)
-
         # TOSTOP must not be set or our children will hang when they output
         fd = sys.stdout.fileno()
         if os.isatty(fd):
@@ -141,6 +118,23 @@ class BBCooker:
         self.parser = None
 
     def initConfigurationData(self):
+
+        self.state = state.initial
+
+        self.caches_array = []
+        caches_name_array = ['bb.cache:CoreRecipeInfo'] + self.configuration.extra_caches
+
+        # At least CoreRecipeInfo will be loaded, so caches_array will never be empty!
+        # This is the entry point, no further check needed!
+        for var in caches_name_array:
+            try:
+                module_name, cache_name = var.split(':')
+                module = __import__(module_name, fromlist=(cache_name,))
+                self.caches_array.append(getattr(module, cache_name)) 
+            except ImportError as exc:
+                logger.critical("Unable to import extra RecipeInfo '%s' from '%s': %s" % (cache_name, module_name, exc))
+                sys.exit("FATAL: Failed to import extra cache class '%s'." % cache_name)
+
         self.databuilder = bb.cookerdata.CookerDataBuilder(self.configuration, False)
         self.data = self.databuilder.data
 
@@ -158,6 +152,13 @@ class BBCooker:
         self.data = self.databuilder.data
         self.data_hash = self.databuilder.data_hash
 
+        #
+        # Special updated configuration we use for firing events
+        #
+        self.event_data = bb.data.createCopy(self.data)
+        bb.data.update_data(self.event_data)
+        bb.parse.init_parser(self.event_data)
+
     def modifyConfigurationVar(self, var, val, default_file, op):
         if op == "append":
             self.appendConfigurationVar(var, val, default_file)
@@ -1246,11 +1247,9 @@ class BBCooker:
         self.state = state.stop
 
     def initialize(self):
-        self.state = state.initial
         self.initConfigurationData()
 
     def reset(self):
-        self.state = state.initial
         self.loadConfigurationData()
 
 def server_main(cooker, func, *args):