Fehlerbehebung: Logging-Setup für Multi-Client-Betrieb korrigiert

- Logdateipfad wird vor dem Aufruf von fileConfig() über builtins.log_filename gesetzt
- Entfernt manuelles Patchen des Loghandlers (BaseFilename, Stream etc.) nach dem Laden
- Logging-Konfiguration (logger_client.ini) wird nur noch einmal geladen
- logger_*.ini: Korrektur: interval=midnight ist nicht (mehr) offiziell unterstützt, Änderung auf korrekte Schreibweise (when=midnight, interval=1)
- Ändern der Kommentare auf Englisch (stringent zu anderen Kommentaren)

bw_client.py

@@ -27,11 +27,14 @@ if not paths.makeDirIfNotExist(paths.LOG_PATH):
     print("cannot find/create log directory: %s", paths.LOG_PATH)
     exit(1)
 
+import logging
 import logging.config
+import logging.handlers
 import argparse
 import os
+import builtins
 
-# Argumente zuerst parsen
+# parsing arguments first - this is needed to load the logging config file with the correct log filename
 parser = argparse.ArgumentParser(prog="bw_client.py",
                                  description="""BOSWatch is a Python Script to receive and
                                  decode german BOS information with rtl_fm and multimon-NG""",
@@ -42,28 +45,13 @@ parser.add_argument("-c", "--config", help="Name to configuration File", require
 parser.add_argument("-t", "--test", help="Start Client with testdata-set", action="store_true")
 args = parser.parse_args()
 
-# Logging-Konfiguration laden
+# set the log filename in the global namespace (mandatory for fileConfig)
+basename = os.path.splitext(args.config)[0]
+log_filename = f"{paths.LOG_PATH}{basename}.log"
+builtins.log_filename = log_filename
+
 logging.config.fileConfig(paths.CONFIG_PATH + "logger_client.ini", disable_existing_loggers=False)
 
-# Dynamischer Logdateiname basierend auf YAML-Datei
-yaml_basename = os.path.splitext(args.config)[0]
-log_filename = f"{paths.LOG_PATH}{yaml_basename}.log"
-
-for handler in logging.getLogger().handlers:
-    if isinstance(handler, logging.handlers.TimedRotatingFileHandler):
-        handler.baseFilename = os.path.abspath(log_filename)
-        handler.stream.close()
-        handler.stream = open(handler.baseFilename, handler.mode)
-
-# Placeholder-Logdatei löschen, falls dynamisch umgebogen
-placeholder_log = os.path.abspath(os.path.join(paths.LOG_PATH, "client.log"))
-if os.path.abspath(log_filename) != placeholder_log and os.path.isfile(placeholder_log):
-    try:
-        os.remove(placeholder_log)
-        logging.debug("Überflüssige client.log gelöscht.")
-    except Exception as e:
-        logging.warning("Fehler beim Löschen von client.log: %s", e)
-
 logging.debug("")
 logging.debug("######################## NEW LOG ############################")
 logging.debug("BOSWatch client has started ...")

config/logger_client.ini

@@ -13,6 +13,7 @@ keys=root
 [logger_root]
 handlers=screen,file
 level=NOTSET
+# NOTSET means: accept all levels (the handlers will filter by their own level)
 
 [formatters]
 keys=simple,complex
@@ -30,11 +31,14 @@ keys=file,screen
 
 [handler_file]
 class=handlers.TimedRotatingFileHandler
-interval=midnight
-backupCount=7
 formatter=complex
 level=ERROR
-args=('log/client.log',)
+args=(log_filename, 'midnight', 1, 7, 'utf-8')
+# explaining args:
+# - 'midnight'  → rotate daily at midnight, Options: 'S', 'M', 'H', 'D', 'midnight' or 'W0'-'W6' (0=Monday, 6=Sunday)
+# - 1           → rotate every 1 "x" (see line above), Options: 1, 2, ..., 31
+# - 7           → keep last 7 logs, Options: 1, 2, ..., 31
+# - 'utf-8'     → encoding of the log file, don't change
 
 [handler_screen]
 class=StreamHandler

config/logger_server.ini

@@ -13,6 +13,7 @@ keys=root
 [logger_root]
 handlers=screen,file
 level=NOTSET
+# NOTSET means: accept all levels (the handlers will filter by their own level)
 
 [formatters]
 keys=simple,complex
@@ -30,11 +31,14 @@ keys=file,screen
 
 [handler_file]
 class=handlers.TimedRotatingFileHandler
-interval=midnight
-backupCount=7
 formatter=complex
 level=ERROR
-args=('log/server.log',)
+args=('log/server.log', 'midnight', 1, 7, 'utf-8')
+# explaining args:
+# - 'midnight'  → rotate daily at midnight, Options: 'S', 'M', 'H', 'D', 'midnight' or 'W0'-'W6' (0=Monday, 6=Sunday)
+# - 1           → rotate every 1 "x" (see line above), Options: 1, 2, ..., 31
+# - 7           → keep last 7 logs, Options: 1, 2, ..., 31
+# - 'utf-8'     → encoding of the log file, don't change
 
 [handler_screen]
 class=StreamHandler