Startup box: server.run() prints app name, version and connect URL in a rounded unicode box on stderr. Shared termwidth module for ANSI-aware unicode display width and padding.

fastapi-vue/fastapi_vue/accesslog.py

@@ -6,10 +6,11 @@ import http
 import itertools
 import logging
 import time
-import unicodedata
 from ipaddress import IPv6Address
 from typing import TYPE_CHECKING, cast
 
+from .termwidth import pad_display
+
 if TYPE_CHECKING:
     from uvicorn._types import (
         ASGI3Application,
@@ -39,14 +40,6 @@ _WS_OPEN = "\033[38;5;226m"  # WebSocket connect (brightest yellow)
 _WS_CLOSE = "\033[38;5;142m"  # WebSocket disconnect (dimmer yellow)
 
 
-def _display_width(text: str) -> int:
-    return sum(2 if unicodedata.east_asian_width(char) in ("F", "W") else 1 for char in text)
-
-
-def _pad_display(text: str, width: int) -> str:
-    return text + " " * max(width - _display_width(text), 0)
-
-
 def _format_duration(duration: float) -> str:
     ms = int(duration * 1000)
     if ms < 2000:
@@ -193,9 +186,9 @@ def _http_access_log_extra(
         "client": _format_client_ip(client_addr).ljust(19),
         "status": f"{_status_color(status)}{str(status).rjust(3)}{_RESET}",
         "method": (
-            f"{_METHOD_READ}{_pad_display('🔌', 7)}{_RESET}"
+            f"{_METHOD_READ}{pad_display('🔌', 7)}{_RESET}"
             if method == "🔌"
-            else f"{_method_color(method)}{_pad_display(method, 7)}{_RESET}"
+            else f"{_method_color(method)}{pad_display(method, 7)}{_RESET}"
         ),
         "host": f"{_HOST}{_header(scope, 'host') or '-'}{_RESET}",
         "path": f"{_PATH}{full_path}{_RESET}",
@@ -229,7 +222,7 @@ def _ws_open_extra(
     return {
         "client": _format_client_ip(client_addr).ljust(19),
         "status": f"{_WS_OPEN} {ws_id}{_RESET}",
-        "method": f"{_METHOD_READ}{_pad_display('🔌', 7)}{_RESET}",
+        "method": f"{_METHOD_READ}{pad_display('🔌', 7)}{_RESET}",
         "host": f"{_HOST}{host}{_RESET}" if host else "",
         "path": path,
         "extra": extra,
@@ -264,7 +257,7 @@ def _ws_close_extra(
     return {
         "client": " " * 19,
         "status": f"{_WS_CLOSE} {ws_id}{_RESET}",
-        "method": f"{_TIMING}{_pad_display('closed', 7)}{_RESET}",
+        "method": f"{_TIMING}{pad_display('closed', 7)}{_RESET}",
         "host": "",
         "path": f"{code} {status_text}",
         "extra": extra,