bitbake: lib/bb/utils: Add filter()
The bb.utils.filter() function can be used to filter a variable containing whitespace separated words based on another set of words. It has been modeled after the bb.utils.contains_any() function. A typical example of how it can be used is to simplify constructs for PACKAGECONFIG that depend on DISTRO_FEATURES: -PACKAGECONFIG ?= "\ - ${@bb.utils.contains('DISTRO_FEATURES', 'acl', 'acl', '', d)} \ - ${@bb.utils.contains('DISTRO_FEATURES', 'selinux', 'selinux', '', d)} \ -" +PACKAGECONFIG ?= "${@bb.utils.filter('DISTRO_FEATURES', 'acl selinux', d)}" (Bitbake rev: 03ae490366d2046f5b5c185fe4ec2adf1b0a902e) Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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@ -979,6 +979,30 @@ def contains_any(variable, checkvalues, truevalue, falsevalue, d):
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return truevalue
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return falsevalue
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def filter(variable, checkvalues, d):
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"""Return all words in the variable that are present in the checkvalues.
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Arguments:
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variable -- the variable name. This will be fetched and expanded (using
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d.getVar(variable)) and then split into a set().
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checkvalues -- if this is a string it is split on whitespace into a set(),
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otherwise coerced directly into a set().
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d -- the data store.
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"""
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val = d.getVar(variable)
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if not val:
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return ''
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val = set(val.split())
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if isinstance(checkvalues, str):
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checkvalues = set(checkvalues.split())
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else:
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checkvalues = set(checkvalues)
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return ' '.join(sorted(checkvalues & val))
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def cpu_count():
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return multiprocessing.cpu_count()
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