make "-v" (logging to stderr) work with commands

When running a command, file logging is disabled as every
command-invocation would create a new logfile. However if the user
explicitly sets "-v" on the commandline, there's no reason why that
shouldn't work.

electrum/logging.py

@@ -9,10 +9,13 @@ import sys
 import pathlib
 import os
 import platform
-from typing import Optional
+from typing import Optional, TYPE_CHECKING
 import copy
 import subprocess
 
+if TYPE_CHECKING:
+    from .simple_config import SimpleConfig
+
 
 class LogFormatterForFiles(logging.Formatter):
 
@@ -306,11 +309,12 @@ class Logger:
         return ''
 
 
-def configure_logging(config):
+def configure_logging(config: 'SimpleConfig', *, log_to_file: Optional[bool] = None) -> None:
     verbosity = config.get('verbosity')
     verbosity_shortcuts = config.get('verbosity_shortcuts')
     _configure_stderr_logging(verbosity=verbosity, verbosity_shortcuts=verbosity_shortcuts)
 
+    if log_to_file is None:
         log_to_file = config.get('log_to_file', False)
         is_android = 'ANDROID_DATA' in os.environ
         if is_android:

run_electrum

@@ -454,6 +454,7 @@ def handle_cmd(*, cmdname: str, config: 'SimpleConfig', config_options: dict):
             sys_exit(1)
     else:
         # command line
+        configure_logging(config, log_to_file=False)  # don't spam logfiles for each client-side RPC, but support "-v"
         cmd = known_commands[cmdname]
         wallet_path = config.get_wallet_path()
         if not config.get('offline'):