distro_features_check: add any of test

Add a test for distro features including one or more
items in a list.  This is useful when, for example, we
need either x11 or directfb as a feature.

Signed-off-by: Joe Slater <jslater@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/classes/distro_features_check.bbclass b/meta/classes/distro_features_check.bbclass
index 1f1d6fba372ebcb1ae5b7ebd2a6612a99fd6bced..7e91dbcf4a4c204d02b8bbc501bb9f402330d1ad 100644 (file)
--- a/meta/classes/distro_features_check.bbclass
+++ b/meta/classes/distro_features_check.bbclass
@@ -1,5 +1,7 @@
 # Allow checking of required and conflicting DISTRO_FEATURES
 #
+# ANY_OF_DISTRO_FEATURES:   ensure at least one item on this list is included
+#                           in DISTRO_FEATURES.
 # REQUIRED_DISTRO_FEATURES: ensure every item on this list is included
 #                           in DISTRO_FEATURES.
 # CONFLICT_DISTRO_FEATURES: ensure no item in this list is included in
@@ -8,10 +10,18 @@
 # Copyright 2013 (C) O.S. Systems Software LTDA.
 
 python () {
+    # Assume at least one var is set.
+    distro_features = (d.getVar('DISTRO_FEATURES', True) or "").split()
+
+    any_of_distro_features = d.getVar('ANY_OF_DISTRO_FEATURES', True)
+    if any_of_distro_features:
+        any_of_distro_features = any_of_distro_features.split()
+        if set.isdisjoint(set(any_of_distro_features),set(distro_features)):
+            raise bb.parse.SkipPackage("one of '%s' needs to be in DISTRO_FEATURES" % any_of_distro_features)
+
     required_distro_features = d.getVar('REQUIRED_DISTRO_FEATURES', True)
     if required_distro_features:
         required_distro_features = required_distro_features.split()
-        distro_features = (d.getVar('DISTRO_FEATURES', True) or "").split()
         for f in required_distro_features:
             if f in distro_features:
                 continue
@@ -21,7 +31,6 @@ python () {
     conflict_distro_features = d.getVar('CONFLICT_DISTRO_FEATURES', True)
     if conflict_distro_features:
         conflict_distro_features = conflict_distro_features.split()
-        distro_features = (d.getVar('DISTRO_FEATURES', True) or "").split()
         for f in conflict_distro_features:
             if f in distro_features:
                 raise bb.parse.SkipPackage("conflicting distro feature '%s' (in DISTRO_FEATURES)" % f)