cooker: don't choke if we have nothing to parse

If all our recipes were cached, there's no reason to fire off any parsing
progress events at all.

Signed-off-by: Chris Larson <chris_larson@mentor.com>

1 files changed, 11 insertions, 5 deletions

diff --git a/lib/bb/cooker.py b/lib/bb/cooker.py
index be1d55ae4..70d1ae3ee 100644
--- a/lib/bb/cooker.py
+++ b/lib/bb/cooker.py
@@ -948,15 +948,21 @@ class CookerParser(object):
         def init(cfg):
             parse_file.cfg = cfg
 
-        bb.event.fire(bb.event.ParseStarted(self.toparse), self.cfgdata)
+        self.results = self.load_cached()
 
-        self.pool = multiprocessing.Pool(self.num_processes, init, [self.cfgdata])
-        parsed = self.pool.imap(parse_file, self.willparse)
-        self.pool.close()
+        if self.toparse:
+            bb.event.fire(bb.event.ParseStarted(self.toparse), self.cfgdata)
 
-        self.results = itertools.chain(self.load_cached(), parsed)
+            self.pool = multiprocessing.Pool(self.num_processes, init, [self.cfgdata])
+            parsed = self.pool.imap(parse_file, self.willparse)
+            self.pool.close()
+
+            self.results = itertools.chain(self.results, parsed)
 
     def shutdown(self, clean=True):
+        if not self.toparse:
+            return
+
         if clean:
             event = bb.event.ParseCompleted(self.cached, self.parsed,
                                             self.skipped, self.masked,