Refactor command line arguments parsing

gns3server/main.py

@@ -30,6 +30,7 @@ import gns3server.utils.get_resource
 import os
 import sys
 import asyncio
+import argparse
 
 
 def daemonize():
@@ -59,6 +60,42 @@ def daemonize():
         print("Second fork failed: %d (%s)\n" % (e.errno, e.strerror), file=sys.stderr)
         sys.exit(1)
 
+def parse_arguments(argv):
+    """
+    Parse command line arguments
+
+    :param argv: Array of command line arguments
+    """
+    from gns3server.version import __version__
+    parser = argparse.ArgumentParser(description=f"GNS3 server version {__version__}")
+    parser.add_argument("-v", "--version", help="show the version", action="version", version=__version__)
+    parser.add_argument("--host", help="run on the given host/IP address")
+    parser.add_argument("--port", help="run on the given port", type=int)
+    parser.add_argument("--ssl", action="store_true", help="run in SSL mode")
+    parser.add_argument("--config", help="Configuration file")
+    parser.add_argument("--certfile", help="SSL cert file")
+    parser.add_argument("--certkey", help="SSL key file")
+    parser.add_argument("-L", "--local", action="store_true", help="local mode (allows some insecure operations)")
+    parser.add_argument(
+        "-A", "--allow", action="store_true", help="allow remote connections to local console ports"
+    )
+    parser.add_argument("-q", "--quiet", default=False, action="store_true", help="do not show logs on stdout")
+    parser.add_argument("-d", "--debug", default=False, action="store_true", help="show debug logs")
+    parser.add_argument("--logfile", "--log", help="send output to logfile instead of console")
+    parser.add_argument("--logmaxsize", default=10000000, help="maximum logfile size in bytes (default is 10MB)")
+    parser.add_argument(
+        "--logbackupcount", default=10, help="number of historical log files to keep (default is 10)"
+    )
+    parser.add_argument(
+        "--logcompression", default=False, action="store_true", help="compress inactive (historical) logs"
+    )
+    parser.add_argument("--daemon", action="store_true", help="start as a daemon")
+    parser.add_argument("--pid", help="store process pid")
+    parser.add_argument("--profile", help="Settings profile (blank will use default settings files)")
+
+    args = parser.parse_args(argv)
+    return parser, args
+
 
 def main():
     """
@@ -69,10 +106,11 @@ def main():
         raise SystemExit("Windows is not a supported platform to run the GNS3 server")
     if "--daemon" in sys.argv:
         daemonize()
-    from gns3server.server import Server
 
     try:
-        asyncio.run(Server().run())
+        parser, args = parse_arguments(sys.argv[1:])
+        from gns3server.server import Server
+        asyncio.run(Server().run(parser, args))
     except KeyboardInterrupt:
         pass