summaryrefslogtreecommitdiffstats
path: root/meta/classes-recipe/features_check.bbclass
diff options
context:
space:
mode:
Diffstat (limited to 'meta/classes-recipe/features_check.bbclass')
-rw-r--r--meta/classes-recipe/features_check.bbclass57
1 files changed, 57 insertions, 0 deletions
diff --git a/meta/classes-recipe/features_check.bbclass b/meta/classes-recipe/features_check.bbclass
new file mode 100644
index 0000000000..163a7bc3fc
--- /dev/null
+++ b/meta/classes-recipe/features_check.bbclass
@@ -0,0 +1,57 @@
+# Allow checking of required and conflicting features
+#
+# xxx = [DISTRO,MACHINE,COMBINED,IMAGE]
+#
+# ANY_OF_xxx_FEATURES: ensure at least one item on this list is included
+# in xxx_FEATURES.
+# REQUIRED_xxx_FEATURES: ensure every item on this list is included
+# in xxx_FEATURES.
+# CONFLICT_xxx_FEATURES: ensure no item in this list is included in
+# xxx_FEATURES.
+#
+# Copyright 2019 (C) Texas Instruments Inc.
+# Copyright 2013 (C) O.S. Systems Software LTDA.
+#
+# SPDX-License-Identifier: MIT
+
+
+python () {
+ if d.getVar('PARSE_ALL_RECIPES', False):
+ return
+
+ unused = True
+
+ for kind in ['DISTRO', 'MACHINE', 'COMBINED', 'IMAGE']:
+ if d.getVar('ANY_OF_' + kind + '_FEATURES') is None and not d.hasOverrides('ANY_OF_' + kind + '_FEATURES') and \
+ d.getVar('REQUIRED_' + kind + '_FEATURES') is None and not d.hasOverrides('REQUIRED_' + kind + '_FEATURES') and \
+ d.getVar('CONFLICT_' + kind + '_FEATURES') is None and not d.hasOverrides('CONFLICT_' + kind + '_FEATURES'):
+ continue
+
+ unused = False
+
+ # Assume at least one var is set.
+ features = set((d.getVar(kind + '_FEATURES') or '').split())
+
+ any_of_features = set((d.getVar('ANY_OF_' + kind + '_FEATURES') or '').split())
+ if any_of_features:
+ if set.isdisjoint(any_of_features, features):
+ raise bb.parse.SkipRecipe("one of '%s' needs to be in %s_FEATURES"
+ % (' '.join(any_of_features), kind))
+
+ required_features = set((d.getVar('REQUIRED_' + kind + '_FEATURES') or '').split())
+ if required_features:
+ missing = set.difference(required_features, features)
+ if missing:
+ raise bb.parse.SkipRecipe("missing required %s feature%s '%s' (not in %s_FEATURES)"
+ % (kind.lower(), 's' if len(missing) > 1 else '', ' '.join(missing), kind))
+
+ conflict_features = set((d.getVar('CONFLICT_' + kind + '_FEATURES') or '').split())
+ if conflict_features:
+ conflicts = set.intersection(conflict_features, features)
+ if conflicts:
+ raise bb.parse.SkipRecipe("conflicting %s feature%s '%s' (in %s_FEATURES)"
+ % (kind.lower(), 's' if len(conflicts) > 1 else '', ' '.join(conflicts), kind))
+
+ if unused:
+ bb.warn("Recipe inherits features_check but doesn't use it")
+}