import bb, bb.data def read_file(filename): try: f = file( filename, "r" ) except IOError, reason: return "" # WARNING: can't raise an error now because of the new RDEPENDS handling. This is a bit ugly. :M: else: return f.read().strip() return None def ifelse(condition, iftrue = True, iffalse = False): if condition: return iftrue else: return iffalse def conditional(variable, checkvalue, truevalue, falsevalue, d): if d.getVar(variable,1) == checkvalue: return truevalue else: return falsevalue def less_or_equal(variable, checkvalue, truevalue, falsevalue, d): if float(d.getVar(variable,1)) <= float(checkvalue): return truevalue else: return falsevalue def version_less_or_equal(variable, checkvalue, truevalue, falsevalue, d): result = bb.utils.vercmp_string(d.getVar(variable,True), checkvalue) if result <= 0: return truevalue else: return falsevalue def contains(variable, checkvalues, truevalue, falsevalue, d): val = d.getVar(variable, True) if not val: return falsevalue val = set(val.split()) if isinstance(checkvalues, basestring): checkvalues = set(checkvalues.split()) else: checkvalues = set(checkvalues) if checkvalues.issubset(val): return truevalue return falsevalue def both_contain(variable1, variable2, checkvalue, d): if d.getVar(variable1,1).find(checkvalue) != -1 and d.getVar(variable2,1).find(checkvalue) != -1: return checkvalue else: return "" def prune_suffix(var, suffixes, d): # See if var ends with any of the suffixes listed and # remove it if found for suffix in suffixes: if var.endswith(suffix): var = var.replace(suffix, "") prefix = d.getVar("MLPREFIX", True) if prefix and var.startswith(prefix): var = var.replace(prefix, "") return var def str_filter(f, str, d): from re import match return " ".join(filter(lambda x: match(f, x, 0), str.split())) 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 in map and convert it to a boolean; take when this 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)) def inherits(d, *classes): """Return True if the metadata inherits any of the specified classes""" return any(bb.data.inherits_class(cls, d) for cls in classes)