Syntax change: Require --offline to run commands without a daemon.

That makes the syntax less ambiguous. It also makes it possible to
implement a CLI that does not import all the electrum modules.

electrum/commands.py

@@ -1091,6 +1091,7 @@ def add_global_options(parser):
     group.add_argument("--simnet", action="store_true", dest="simnet", default=False, help="Use Simnet")
     group.add_argument("--lightning", action="store_true", dest="lightning", default=False, help="Enable lightning")
     group.add_argument("--reckless", action="store_true", dest="reckless", default=False, help="Allow to enable lightning on mainnet")
+    group.add_argument("-o", "--offline", action="store_true", dest="offline", default=False, help="Run offline")
 
 def get_parser():
     # create main parser
@@ -1102,7 +1103,6 @@ def get_parser():
     parser_gui = subparsers.add_parser('gui', description="Run Electrum's Graphical User Interface.", help="Run GUI (default)")
     parser_gui.add_argument("url", nargs='?', default=None, help="bitcoin URI (or bip70 file)")
     parser_gui.add_argument("-g", "--gui", dest="gui", help="select graphical user interface", choices=['qt', 'kivy', 'text', 'stdio'])
-    parser_gui.add_argument("-o", "--offline", action="store_true", dest="offline", default=False, help="Run offline")
     parser_gui.add_argument("-m", action="store_true", dest="hide_gui", default=False, help="hide GUI on startup")
     parser_gui.add_argument("-L", "--lang", dest="language", default=None, help="default language used in GUI")
     parser_gui.add_argument("--daemon", action="store_true", dest="daemon", default=False, help="keep daemon running after GUI is closed")

electrum/tests/regtest/regtest.sh

@@ -70,20 +70,20 @@ fi
 if [[ $1 == "init" ]]; then
     echo "initializing alice, bob and carol"
     rm -rf /tmp/alice/ /tmp/bob/ /tmp/carol/
-    $alice create > /dev/null
+    $alice create --offline > /dev/null
-    $bob create > /dev/null
+    $bob   create --offline > /dev/null
-    $carol create > /dev/null
+    $carol create --offline > /dev/null
-    $alice setconfig log_to_file True
+    $alice setconfig --offline log_to_file True
-    $bob   setconfig log_to_file True
+    $bob   setconfig --offline log_to_file True
-    $carol setconfig log_to_file True
+    $carol setconfig --offline log_to_file True
-    $alice setconfig server 127.0.0.1:51001:t
+    $alice setconfig --offline server 127.0.0.1:51001:t
-    $bob   setconfig server 127.0.0.1:51001:t
+    $bob   setconfig --offline server 127.0.0.1:51001:t
-    $carol setconfig server 127.0.0.1:51001:t
+    $carol setconfig --offline server 127.0.0.1:51001:t
-    $bob setconfig lightning_listen localhost:9735
+    $bob setconfig --offline lightning_listen localhost:9735
-    $bob setconfig lightning_forward_payments true
+    $bob setconfig --offline lightning_forward_payments true
     echo "funding alice and carol"
-    $bitcoin_cli sendtoaddress $($alice getunusedaddress) 1
+    $bitcoin_cli sendtoaddress $($alice getunusedaddress -o) 1
-    $bitcoin_cli sendtoaddress $($carol getunusedaddress) 1
+    $bitcoin_cli sendtoaddress $($carol getunusedaddress -o) 1
     new_blocks 1
 fi
 
@@ -296,9 +296,9 @@ if [[ $1 == "watchtower" ]]; then
     # carol is a watchtower of alice
     $alice stop
     $carol stop
-    $alice setconfig watchtower_url http://127.0.0.1:12345
+    $alice setconfig --offline watchtower_url http://127.0.0.1:12345
-    $carol setconfig watchtower_host 127.0.0.1
+    $carol setconfig --offline watchtower_host 127.0.0.1
-    $carol setconfig watchtower_port 12345
+    $carol setconfig --offline watchtower_port 12345
     $carol daemon start
     $alice daemon start
     sleep 1

run_electrum

@@ -398,21 +398,30 @@ if __name__ == '__main__':
                 sys_exit(1)
     else:
         # command line
-        try:
+        cmd = known_commands[cmdname]
+        if not config.get('offline'):
             init_cmdline(config_options, True)
             timeout = config_options.get('timeout', 60)
             if timeout: timeout = int(timeout)
+            try:
                 result = daemon.request(config, 'run_cmdline', (config_options,), timeout)
             except daemon.DaemonNotRunning:
-            cmd = known_commands[cmdname]
-            if cmd.requires_network:
                 print_msg("Daemon not running; try 'electrum daemon start'")
+                if not cmd.requires_network:
+                    print_msg("To run this command without a daemon, use --offline")
+                sys_exit(1)
+            except Exception as e:
+                print_stderr(e)
                 sys_exit(1)
         else:
+            if cmd.requires_network:
+                print_msg("This command cannot be run offline")
+                sys_exit(1)
             init_cmdline(config_options, False)
             plugins = init_plugins(config, 'cmdline')
             coro = run_offline_command(config, config_options, plugins)
             fut = asyncio.run_coroutine_threadsafe(coro, loop)
+            try:
                 result = fut.result(10)
             except Exception as e:
                 print_stderr(e)