add perimitive argparse support

esgd.py

@@ -1,5 +1,6 @@
 import socketserver
 import subprocess
+import argparse
 import os
 import time
 import pwd
@@ -186,13 +187,23 @@ class GopherHandler(socketserver.BaseRequestHandler, GopherServerLogic):
         self.serveFile(file[0], parsed[1], file[1])
 
 log = Logger()
-host = "localhost"
-port = 70
-location = "/tmp/test"
 
 if __name__ == "__main__":
-    switchgrp = grp.getgrnam("nobody").gr_gid
-    switchusr = pwd.getpwnam("nobody").pw_uid
+    parse = argparse.ArgumentParser()
+    parse.add_argument("-u", "--user", default="nobody", help="user to change to on startup")
+    parse.add_argument("-g", "--group", default="nobody", help="group to change to on startup")
+    parse.add_argument("-s", "--host", default="localhost", help="host to host on")
+    parse.add_argument("-p", "--port", default=70, type=int, help="port to host on")
+    parse.add_argument("-d", "--dir", default="/var/gopher", help="directory to host from")
+    args = parse.parse_args()
+    log.log("arguments parsed")
+
+    switchgrp = grp.getgrnam(args.group).gr_gid
+    switchusr = pwd.getpwnam(args.user).pw_uid
+    host = args.host
+    port = args.port
+    location = args.dir
+    log.log("arguments good")
     try:
         with socketserver.TCPServer((host, port), GopherHandler) as server:
             os.setgid(switchgrp)