Enable colored access log, tracerite and other software when running under systemd/journald which support colors (journalctl -ocat) and can strip them off (any other output mode). Sets environment FORCE_COLOR to full color if conditions are met. This is intended to affect all other modules and child processes alike (set NO_COLOR or FORCE_COLOR to override).

fastapi-vue/fastapi_vue/logging.py

@@ -10,6 +10,7 @@ from __future__ import annotations
 
 import io
 import logging
+import os
 import re
 import sys
 from contextlib import suppress
@@ -43,6 +44,21 @@ def strip_ansi(text: str) -> str:
     return ANSI_ESCAPE_RE.sub("", text)
 
 
+def use_color(stream: io.TextIOBase = sys.stderr) -> bool:
+    """Test if the stream supports color codes."""
+    if os.environ.get("NO_COLOR"):  # Non empty means no (no-color.org)
+        return False
+    if os.environ.get("FORCE_COLOR", "") not in {"", "0"}:  # force-color.org, node
+        return True
+    if hasattr(stream, "isatty") and stream.isatty():
+        return True
+    with suppress(KeyError, ValueError, OSError):  # Journald does color (-ocat)
+        dev, ino = map(int, os.environ["JOURNAL_STREAM"].split(":", 1))
+        st = os.fstat(stream.fileno())
+        return st.st_dev == dev and st.st_ino == ino
+    return False
+
+
 _LEVEL_EMOJI = {
     logging.DEBUG: "🐛",
     logging.INFO: "🔷",
@@ -94,7 +110,7 @@ class Formatter(logging.Formatter):
         if use_colors in (True, False):
             self.use_colors = use_colors
         else:
-            self.use_colors = sys.stdout.isatty()
+            self.use_colors = use_color(sys.stdout)
         super().__init__(fmt=fmt, datefmt=datefmt, style=style)
 
     def formatMessage(self, record: logging.LogRecord) -> str:  # noqa: N802
@@ -296,7 +312,10 @@ def patch_log_config(log_config, *, access_log: bool = True):  # noqa: ANN001, A
     routine INFO lines, an emoji-level-prefix Formatter in place of
     uvicorn's stock ``default`` formatter (a user-supplied one wins), a root
     logger entry so ``logging.info()`` et al. print through the default
-    handler, and a no-prefix ``kanta`` logger entry (likewise).
+    handler, and a no-prefix ``kanta`` logger entry (likewise).  The
+    ``watchfiles.main`` logger is lifted to WARNING so its INFO "N changes
+    detected" line is dropped while the WARNING "Reloading..." line (logged
+    to ``uvicorn.error``) still shows; a user-supplied level wins.
     With ``access_log``, additionally rewires the ``access`` formatter to
     our Formatter and attaches its handler to our ``fastapi_vue.access``
     logger.  We must not
@@ -343,6 +362,13 @@ def patch_log_config(log_config, *, access_log: bool = True):  # noqa: ANN001, A
         if "default" not in root_handlers:
             root_handlers.append("default")
 
+    # watchfiles logs "N changes detected" to its own logger at INFO; only the
+    # WARNING "Reloading..." line (uvicorn.error) should show.
+    with suppress(Exception):
+        config.setdefault("loggers", {}).setdefault("watchfiles.main", {}).setdefault(
+            "level", "WARNING"
+        )
+
     # kanta-style output (diffs, colored headers) prints without prefixes,
     # like our access log.  A user-supplied "kanta" logger entry wins.
     with suppress(Exception):

fastapi-vue/fastapi_vue/server.py

@@ -18,11 +18,17 @@ from .logging import (
     patch_lifespan_logging,
     patch_log_config,
     patch_server_error_middleware,
+    use_color,
 )
 from .startupbox import print_box
 
 tracerite.load()  # Early load on CLI load (import server); uvicorn workers reload via log config
 
+# Install force color to aid tracerite and any external software to use full color when available
+# Define NO_COLOR or FORCE_COLOR beforehand to avoid this
+if "FORCE_COLOR" not in os.environ and use_color():
+    os.environ["FORCE_COLOR"] = "3"
+
 logger = logging.getLogger(__name__)
 
 _WILDCARD_HOSTS = frozenset({"0.0.0.0", "::"})  # noqa: S104

fastapi_vue_setup.py

@@ -1596,11 +1596,11 @@ def cmd_setup(args: argparse.Namespace) -> int:
         print("✅ Created .gitignore")
 
     # === Add dependencies using uv ===
-    # Pin fastapi-vue to the same major.minor as this setup tool (both are released
-    # from the same tags). Patch/dev releases may deviate, which also keeps this
-    # resolvable when running a development version of fastapi-vue-setup.
-    mm = re.match(r"(\d+)\.(\d+)", version)
-    fastapi_vue_req = f"fastapi-vue~={mm[1]}.{mm[2]}.0" if mm else "fastapi-vue"
+    # Pin fastapi-vue to the same major.minor.patch as this setup tool (both are
+    # released from the same tags). This makes freshly set up projects request the
+    # matching patch release directly, while `~=` still allows compatible updates.
+    mmp = re.match(r"(\d+)\.(\d+)\.(\d+)", version)
+    fastapi_vue_req = f"fastapi-vue~={mmp[1]}.{mmp[2]}.{mmp[3]}" if mmp else "fastapi-vue"
     if dry:
         print(f"📦 Would add: fastapi[standard], {fastapi_vue_req}")
     else: