[oe] what rwwork_stampfixing_eventhandler is used for?

[Guo Hongruan]

Hi guys,
   I can not figure out what what rwwork_stampfixing_eventhandler is used  
for. But I think it does something unreasonable. I built an OE project and  
all files in openembedded directory have not changed at all, the next  
building should do nothing but report:
NOTE: Tasks Summary: Attempted 65 tasks of which 65 didn't need to be  
rerun and 0 failed.
and exit. But the fact is that the rwwork_stampsfixing_eventhandler  
removes some stamps files and force lots of packages to rebuild even  
though nothing changed at all.

    After I applied the following patch, the behavior is what I expected.  
Who can give some information about this handler?

Thanks a lot!


diff --git a/classes/rm_work.bbclass b/classes/rm_work.bbclass
index a53d12b..1335395 100644
--- a/classes/rm_work.bbclass
+++ b/classes/rm_work.bbclass
@@ -32,19 +32,3 @@ do_rm_work_all () {
  do_rm_work_all[recrdeptask] = "do_rm_work"
  addtask rm_work_all after do_rm_work

-
-addhandler rmwork_stampfixing_eventhandler
-python rmwork_stampfixing_eventhandler() {
-    if bb.event.getName(e) == "StampUpdate":
-        for (fn, task) in e.targets:
-            if task == 'rm_work_all':
-                continue
-            stamp = "%s.do_rm_work" % e.stampPrefix[fn]
-            if os.path.exists(stamp):
-                dir = "%s.*" % e.stampPrefix[fn]
-                bb.note("Removing stamps: " + dir)
-                os.system('rm -f '+ dir)
-
-    return NotHandled
-}
-


-- 
Guo Hongruan, Embedded Linux Consultant
Skype: camelguo
Twitter: camelguo
http://www.gulessoft.com