feat: custom word list

cool_domain/params.py

@@ -20,6 +20,7 @@ class Parameters:
     lang: str = "english"
     cache_file: str = str(pathlib.Path(tempfile.gettempdir()) / ".cool-domain-cache")
     tld_list_uri: str = "https://publicsuffix.org/list/public_suffix_list.dat"
+    custom_words: str = "words.txt"
 
     @classmethod
     def from_namespace(cls, args: argparse.Namespace) -> "Parameters":
@@ -98,12 +99,6 @@ def parse_parameters(args: typing.Sequence[str]) -> Parameters:
         default=default_values.count,
         help_txt="number of domains to generate",
     )
-    parser.add_argument(
-        "--lang",
-        default=default_values.lang,
-        help="word list lang (default: english)",
-        choices=LANGS.keys(),
-    )
     __add_arg_int(
         parser,
         "--words",
@@ -111,6 +106,19 @@ def parse_parameters(args: typing.Sequence[str]) -> Parameters:
         default=default_values.words,
         help_txt="number of words per domain",
     )
+    parser.add_argument(
+        "--lang",
+        default=default_values.lang,
+        help="word list lang (default: english)",
+        choices=[*list(LANGS.keys()), "custom"],
+    )
+    __add_arg_str(
+        parser,
+        "--custom-words",
+        env_var="CUSTOM_WORDS",
+        default=default_values.custom_words,
+        help_txt="custom word list location",
+    )
     __add_arg_bool(
         parser,
         "--dig",