classes/conf: Add eventmasks for event handlers

Now that bitbake supports masking events for event handlers, lets use
this so event handlers are only called for events they care about. This
lets us simplify the code indentation a bit at least as well as mildly
improving the event handling performance.

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

1 files changed, 4 insertions, 3 deletions

diff --git a/meta/classes/base.bbclass b/meta/classes/base.bbclass
index 8af104f765..3a0ff6bd63 100644
--- a/meta/classes/base.bbclass
+++ b/meta/classes/base.bbclass
@@ -32,12 +32,12 @@ def oe_import(d):
         inject(toimport.split(".", 1)[0], imported)
 
 python oe_import_eh () {
-    if isinstance(e, bb.event.ConfigParsed):
-        oe_import(e.data)
-        e.data.setVar("NATIVELSBSTRING", lsb_distro_identifier(e.data))
+    oe_import(e.data)
+    e.data.setVar("NATIVELSBSTRING", lsb_distro_identifier(e.data))
 }
 
 addhandler oe_import_eh
+oe_import_eh[eventmask] = "bb.event.ConfigParsed"
 
 def lsb_distro_identifier(d):
     adjust = d.getVar('LSB_DISTRO_ADJUST', True)
@@ -299,6 +299,7 @@ def buildcfg_neededvars(d):
         bb.fatal('The following variable(s) were not set: %s\nPlease set them directly, or choose a MACHINE or DISTRO that sets them.' % ', '.join(pesteruser))
 
 addhandler base_eventhandler
+base_eventhandler[eventmask] = "bb.event.ConfigParsed bb.event.BuildStarted"
 python base_eventhandler() {
     if isinstance(e, bb.event.ConfigParsed):
         e.data.setVar('BB_VERSION', bb.__version__)