cache: don't write out the cache unnecessarily

If the only recipes's we reparsed this run were those flagged as not to be
cached, there's no point in re-saving the cache, as those items won't be
included anyway.

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

1 files changed, 5 insertions, 1 deletions

diff --git a/lib/bb/cache.py b/lib/bb/cache.py
index a39dc4e080..31d98d6e7e 100644
--- a/lib/bb/cache.py
+++ b/lib/bb/cache.py
@@ -233,7 +233,6 @@ class Cache(object):
 
         cached = self.cacheValid(fn)
         if not cached:
-            self.cacheclean = False
             logger.debug(1, "Parsing %s", fn)
             datastores = self.load_bbfile(fn, appends, cfgData)
             depends = set()
@@ -245,6 +244,11 @@ class Cache(object):
                 if depends and not variant:
                     data.setVar("__depends", depends)
                 info = RecipeInfo.from_metadata(fn, data)
+                if not info.nocache:
+                    # The recipe was parsed, and is not marked as being
+                    # uncacheable, so we need to ensure that we write out the
+                    # new cache data.
+                    self.cacheclean = False
                 self.depends_cache[virtualfn] = info
 
         info = self.depends_cache[fn]