migration from ha-cantegrill repo

kwargsparser.py

@@ -0,0 +1,60 @@
+# Usage:
+#
+# you can optionnaly pass two callback log(string) to log error and warning. 
+# If you don't, error will assert and warning will be ignored
+# parser = kwargsParser(kwargs) 
+#
+# some_arg = parser.parse_args('some_arg',None)
+# some_other_arg = parser.parse_args('some_other_arg',False)
+#
+# parser.validate_args() #optional, will assert if kwargs contain unknow args and will display a list of valid args
+#
+
+class kwargsParser():
+    def __init__(self,kwargs,log_error_cb = None, log_warning_cb = None):
+        self.kwargs = dict(kwargs)
+        self.valid_args = list()
+        self.log_error_cb = log_error_cb
+        self.log_warning_cb = log_warning_cb
+
+    def parse_args(self,arg_name,default_value,legacy_args_name = []):
+        self.valid_args.append(arg_name)
+        arg_found = None
+        if arg_name in self.kwargs:
+            arg_found = arg_name
+        else: #let's check legacy args
+            for legacy_arg in legacy_args_name:
+                if legacy_arg in self.kwargs:
+                    arg_found = legacy_arg
+                    self.log_warning(f"{arg_found} is a legacy arg please use {arg_name} instead")
+                    break
+
+        if arg_found:
+            for legacy_arg in legacy_args_name:
+                if arg_found != legacy_arg and legacy_arg in self.kwargs:
+                    self.log_warning(f"{legacy_arg} is a legacy arg and will ignored as you used {arg_name} before")
+
+            value = self.kwargs[arg_found]
+            del self.kwargs[arg_found]
+            return value
+        else:
+            return default_value
+
+    def log_error(self, error_string):
+        if self.log_error_cb:
+            self.log_error_cb(error_string)
+        else:
+            assert False, error_string
+
+    def log_warning(self, warning_string):
+        if self.log_warning_cb:
+            self.log_warning_cb(warning_string)
+
+    def validate_args(self,args_to_ignore_in_validation = []):
+        for arg in args_to_ignore_in_validation:
+            if arg in self.kwargs:
+                del self.kwargs[arg]
+
+        args_left = len(self.kwargs)
+        if args_left != 0:
+            self.log_error(f"Unknown kwargs : {self.kwargs}. Valid args are {self.valid_args}")