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-rw-r--r--lib/oe/utils.py11
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/oe/utils.py b/lib/oe/utils.py
index e61d663a50..3469700726 100644
--- a/lib/oe/utils.py
+++ b/lib/oe/utils.py
@@ -67,3 +67,14 @@ def str_filter(f, str, d):
def str_filter_out(f, str, d):
from re import match
return " ".join(filter(lambda x: not match(f, x, 0), str.split()))
+
+def param_bool(cfg, field, dflt = None):
+ """Lookup <field> in <cfg> map and convert it to a boolean; take
+ <dflt> when this <field> does not exist"""
+ value = cfg.get(field, dflt)
+ strvalue = str(value).lower()
+ if strvalue in ('yes', 'y', 'true', 't', '1'):
+ return True
+ elif strvalue in ('no', 'n', 'false', 'f', '0'):
+ return False
+ raise ValueError("invalid value for boolean parameter '%s': '%s'" % (field, value))