mmgen-xmrwallet: new --no-restart-wallet-daemon option

mmgen/main_xmrwallet.py

@@ -78,6 +78,7 @@ opts_data = {
 -R, --no-relay                   Save transaction to file instead of relaying
 -s, --no-start-wallet-daemon     Don’t start the wallet daemon at startup
 -S, --no-stop-wallet-daemon      Don’t stop the wallet daemon at exit
+-x, --no-restart-wallet-daemon   Don’t start wallet daemon if already started
 -W, --watch-only                 Create or operate on watch-only wallets
 -w, --wallet-dir=D               Output or operate on wallets in directory 'D'
                                  instead of the working directory

mmgen/xmrwallet/ops/wallet.py

@@ -114,7 +114,8 @@ class OpWallet(OpBase):
 		if (
 				self.to_process
 				and self.start_daemon
-				and not self.cfg.no_start_wallet_daemon):
+				and not self.cfg.no_start_wallet_daemon
+				and not (self.cfg.no_restart_wallet_daemon and self.wd.state == 'ready')):
 			if self.main_starts_daemon:
 				self.need_daemon_start = True
 			else: