Move `brokerd` service task to root `.data` mod

piker/data/__init__.py

@@ -22,6 +22,12 @@ and storing data from your brokers as well as
 sharing live streams over a network.
 
 """
+import tractor
+import trio
+
+from ..log import (
+    get_console_log,
+)
 from ._normalize import iterticks
 from ._sharedmem import (
     maybe_open_shm_array,
@@ -32,7 +38,6 @@ from ._sharedmem import (
 )
 from .feed import (
     open_feed,
-    _setup_persistent_brokerd,
 )
 
 
@@ -44,5 +49,40 @@ __all__ = [
     'attach_shm_array',
     'open_shm_array',
     'get_shm_token',
-    '_setup_persistent_brokerd',
 ]
+
+
+@tractor.context
+async def _setup_persistent_brokerd(
+    ctx: tractor.Context,
+    brokername: str,
+
+) -> None:
+    '''
+    Allocate a actor-wide service nursery in ``brokerd``
+    such that feeds can be run in the background persistently by
+    the broker backend as needed.
+
+    '''
+    get_console_log(tractor.current_actor().loglevel)
+
+    from .feed import (
+        _bus,
+        get_feed_bus,
+    )
+    global _bus
+    assert not _bus
+
+    async with trio.open_nursery() as service_nursery:
+        # assign a nursery to the feeds bus for spawning
+        # background tasks from clients
+        get_feed_bus(brokername, service_nursery)
+
+        # unblock caller
+        await ctx.started()
+
+        # we pin this task to keep the feeds manager active until the
+        # parent actor decides to tear it down
+        await trio.sleep_forever()
+
+

piker/data/feed.py

@@ -54,7 +54,10 @@ import numpy as np
 
 from ..brokers import get_brokermod
 from ..calc import humanize
-from ..log import get_logger, get_console_log
+from ..log import (
+    get_logger,
+    get_console_log,
+)
 from .._daemon import (
     maybe_spawn_brokerd,
     check_for_service,
@@ -224,36 +227,6 @@ def get_feed_bus(
     return _bus
 
 
-@tractor.context
-async def _setup_persistent_brokerd(
-    ctx: tractor.Context,
-    brokername: str,
-
-) -> None:
-    '''
-    Allocate a actor-wide service nursery in ``brokerd``
-    such that feeds can be run in the background persistently by
-    the broker backend as needed.
-
-    '''
-    get_console_log(tractor.current_actor().loglevel)
-
-    global _bus
-    assert not _bus
-
-    async with trio.open_nursery() as service_nursery:
-        # assign a nursery to the feeds bus for spawning
-        # background tasks from clients
-        get_feed_bus(brokername, service_nursery)
-
-        # unblock caller
-        await ctx.started()
-
-        # we pin this task to keep the feeds manager active until the
-        # parent actor decides to tear it down
-        await trio.sleep_forever()
-
-
 def diff_history(
     array: np.ndarray,
     timeframe: int,