feat: support docstring as description

backend/funix/decorator/__init__.py

@@ -71,6 +71,7 @@
 from funix.session import get_global_variable, set_global_variable
 from funix.theme import get_dict_theme, parse_theme
 from funix.util.module import funix_menu_to_safe_function_name
+from funix.util.text import un_indent
 from funix.util.uri import is_valid_uri
 from funix.widget import generate_frontend_widget_config
 
@@ -814,10 +815,10 @@ def decorator(function: callable) -> callable:
             function_title = title if title is not None else function_name
 
             function_description = description
-            # if function_description == "":
-            #     function_docstring = getattr(function, "__doc__")
-            #     if function_docstring:
-            #         function_description = dedent(function_docstring.strip())
+            if function_description == "":
+                function_docstring = getattr(function, "__doc__")
+                if function_docstring:
+                    function_description = un_indent(function_docstring)
 
             if not theme:
                 if "__default" in __parsed_themes:

backend/funix/util/text.py

@@ -0,0 +1,57 @@
+# Copied from [indoc](https://github.com/dtolnay/indoc)
+
+
+def count_space(line: str) -> None | int:
+    """
+    Document is on the way
+    """
+    for i in range(len(line)):
+        if line[i] != " " and line[i] != "\t":
+            return i
+    return None
+
+
+def un_indent(message: str) -> str:
+    """
+    Document is on the way
+    """
+    new_message = message
+
+    ignore_first_line = new_message.startswith("\n") or new_message.startswith("\r\n")
+
+    lines = new_message.splitlines()
+
+    min_spaces = []
+
+    for i in lines[1:]:
+        result = count_space(i)
+        if result is not None:
+            min_spaces.append(result)
+
+    if len(min_spaces) > 0:
+        min_space = sorted(min_spaces)[0]
+    else:
+        min_space = 0
+
+    result = ""
+
+    for i in range(len(lines)):
+        if i > 1 or (i == 1 and not ignore_first_line):
+            result += "\n"
+
+        if i == 0:
+            result += lines[i]
+        elif len(lines) > min_space:
+            result += lines[i][min_space:]
+
+    return result.strip()
+
+
+# if __name__ == "__main__":
+#     a = """
+#     Return 0
+#
+#     Parameters:
+#     """
+#
+#     print(un_indent(a))