feat: print version info on "-V" calls

closes #11222

freqtrade/commands/arguments.py

@@ -347,7 +347,7 @@ class Arguments:
         self.parser = ArgumentParser(
             prog="freqtrade", description="Free, open source crypto trading bot"
         )
-        self._build_args(optionlist=["version"], parser=self.parser)
+        self._build_args(optionlist=["version_main"], parser=self.parser)
 
         from freqtrade.commands import (
             start_analysis_entries_exits,

freqtrade/commands/cli_options.py

@@ -59,8 +59,13 @@ AVAILABLE_CLI_OPTIONS = {
     "version": Arg(
         "-V",
         "--version",
-        action="version",
-        version=f"%(prog)s {__version__}",
+        action="store_true",
+    ),
+    "version_main": Arg(
+        # Copy of version - used to have -V available with and without subcommand.
+        "-V",
+        "--version",
+        action="store_true",
     ),
     "config": Arg(
         "-c",

freqtrade/main.py

@@ -18,7 +18,7 @@ from freqtrade.commands import Arguments
 from freqtrade.constants import DOCS_LINK
 from freqtrade.exceptions import ConfigurationError, FreqtradeException, OperationalException
 from freqtrade.loggers import setup_logging_pre
-from freqtrade.system import asyncio_setup, gc_set_threshold
+from freqtrade.system import asyncio_setup, gc_set_threshold, print_version_info
 
 
 logger = logging.getLogger("freqtrade")
@@ -38,7 +38,10 @@ def main(sysargv: list[str] | None = None) -> None:
         args = arguments.get_parsed_arg()
 
         # Call subcommand.
-        if "func" in args:
+        if args.get("version") or args.get("version_main"):
+            print_version_info()
+            return_code = 0
+        elif "func" in args:
             logger.info(f"freqtrade {__version__}")
             gc_set_threshold()
             return_code = args["func"](args)