bitbake: utils: add exec_flat_python_func()
Add a function that allows executing a flat python function (defined with def funcname(args): ...). (Bitbake rev: 20e6939ebcb62e08a9a7ad586a915dfe368136a0) Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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@ -893,3 +893,25 @@ def multiprocessingpool(*args, **kwargs):
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return multiprocessing.Pool(*args, **kwargs)
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def exec_flat_python_func(func, *args, **kwargs):
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"""Execute a flat python function (defined with def funcname(args):...)"""
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# Prepare a small piece of python code which calls the requested function
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# To do this we need to prepare two things - a set of variables we can use to pass
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# the values of arguments into the calling function, and the list of arguments for
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# the function being called
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context = {}
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funcargs = []
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# Handle unnamed arguments
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aidx = 1
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for arg in args:
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argname = 'arg_%s' % aidx
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context[argname] = arg
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funcargs.append(argname)
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aidx += 1
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# Handle keyword arguments
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context.update(kwargs)
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funcargs.extend(['%s=%s' % (arg, arg) for arg in kwargs.iterkeys()])
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code = 'retval = %s(%s)' % (func, ', '.join(funcargs))
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comp = bb.utils.better_compile(code, '<string>', '<string>')
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bb.utils.better_exec(comp, context, code, '<string>')
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return context['retval']
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