Add `services` cmd for monitoring actors

piker/brokers/questrade.py

@@ -1135,7 +1135,7 @@ async def stream_quotes(
     loglevel: str = None,
     # feed_type: str = 'stock',
 ) -> AsyncGenerator[str, Dict[str, Any]]:
-    # XXX: why do we need this again?
+    # XXX: required to propagate ``tractor`` loglevel to piker logging
     get_console_log(tractor.current_actor().loglevel)
 
     async with get_cached_client('questrade') as client:

piker/cli/__init__.py

@@ -6,9 +6,8 @@ import os
 import click
 import tractor
 
-from ..log import get_console_log, get_logger
+from ..log import get_console_log, get_logger, colorize_json
 from ..brokers import get_brokermod, config
-from ..data import maybe_spawn_brokerd
 
 log = get_logger('cli')
 DEFAULT_BROKER = 'questrade'
@@ -72,11 +71,38 @@ def cli(ctx, broker, loglevel, tl, configdir):
         ctx.obj.update({'tractorloglevel': loglevel})
 
 
+@cli.command()
+@click.option('--tl', is_flag=True, help='Enable tractor logging')
+@click.argument('names', nargs=-1, required=False)
+@click.pass_obj
+def services(config, tl, names):
+
+    async def list_services():
+        async with tractor.get_arbiter(
+            *tractor.current_actor()._arb_addr
+        ) as portal:
+            registry = await portal.run('self', 'get_registry')
+            json_d = {}
+            for uid, socket in registry.items():
+                name, uuid = uid
+                host, port = socket
+                json_d[f'{name}.{uuid}'] = f'{host}:{port}'
+            click.echo(
+                f"Available `piker` services:\n{colorize_json(json_d)}"
+            )
+
+    tractor.run(
+        list_services,
+        name='service_query',
+        loglevel=config['loglevel'] if tl else None,
+    )
+
+
 def _load_clis() -> None:
     from ..data import cli as _
-    from ..brokers import cli as _
-    from ..ui import cli as _
-    from ..watchlists import cli as _
+    from ..brokers import cli as _  # noqa
+    from ..ui import cli as _  # noqa
+    from ..watchlists import cli as _  # noqa
 
 
 # load downstream cli modules