bitbake: toaster: support custom Layer Index URL and fixture override

Toaster needs to allow the custom fixture file to specific an
alternate Layer Index URL for users that host their own Layer
Index Server via the 'CUSTOM_LAYERINDEX_SERVER' in
'custom.xml'.

Toaster also needs to allow the ability to completely override
the default fixture files, otherwise that content can leak into
the custom environment (by default the custom fixture is an
overlay that cannot remove existing values from the default
fixture) via the 'CUSTOM_XML_ONLY' value in 'setting.xml'.

[YOCTO #11938]

(Bitbake rev: ac29d4a9078494544a2627d8b6b021096b49cb34)

Signed-off-by: David Reyna <David.Reyna@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/toaster/bldcontrol/management/commands/checksettings.py

@@ -75,7 +75,10 @@ class Command(BaseCommand):
                         call_command("loaddata", "settings")
                         template_conf = os.environ.get("TEMPLATECONF", "")
 
-                        if "poky" in template_conf:
+                        if ToasterSetting.objects.filter(name='CUSTOM_XML_ONLY').count() > 0:
+                            # only use the custom settings
+                            pass
+                        elif "poky" in template_conf:
                             print("Loading poky configuration")
                             call_command("loaddata", "poky")
                         else:

bitbake/lib/toaster/orm/management/commands/lsupdates.py

@@ -81,6 +81,8 @@ class Command(BaseCommand):
         os.system('setterm -cursor off')
 
         self.apiurl = DEFAULT_LAYERINDEX_SERVER
+        if ToasterSetting.objects.filter(name='CUSTOM_LAYERINDEX_SERVER').count() == 1:
+            self.apiurl = ToasterSetting.objects.get(name = 'CUSTOM_LAYERINDEX_SERVER').value
 
         assert self.apiurl is not None
         try:
@@ -92,7 +94,9 @@ class Command(BaseCommand):
 
         proxy_settings = os.environ.get("http_proxy", None)
 
-        def _get_json_response(apiurl=DEFAULT_LAYERINDEX_SERVER):
+        def _get_json_response(apiurl=None):
+            if None == apiurl:
+                apiurl=self.apiurl
             http_progress = Spinner()
             http_progress.start()