pantalaimon: Make the dbus UI optional.

pantalaimon/main.py

@@ -28,7 +28,7 @@ from pantalaimon.config import PanConfig, PanConfigError, parse_log_level
 from pantalaimon.daemon import ProxyDaemon
 from pantalaimon.log import logger
 from pantalaimon.thread_messages import DaemonResponse
-from pantalaimon.ui import GlibT
+from pantalaimon.ui import UI_ENABLED
 
 
 def create_dirs(data_dir, conf_dir):
@@ -50,8 +50,8 @@ async def init(data_dir, server_conf, send_queue, recv_queue):
         server_conf.homeserver,
         server_conf,
         data_dir,
-        send_queue=send_queue,
-        recv_queue=recv_queue,
+        send_queue=send_queue.async_q if send_queue else None,
+        recv_queue=recv_queue.async_q if recv_queue else None,
         proxy=server_conf.proxy.geturl() if server_conf.proxy else None,
         ssl=None if server_conf.ssl is True else False,
     )
@@ -154,17 +154,36 @@ def main(context, log_level, config):
     logger.level = pan_conf.log_level
     StderrHandler().push_application()
 
+    servers = []
+    proxies = []
+
+    if UI_ENABLED:
+        from pantalaimon.ui import GlibT
+
         pan_queue = janus.Queue(loop=loop)
         ui_queue = janus.Queue(loop=loop)
 
-    servers = []
-    proxies = []
+        glib_thread = GlibT(
+            pan_queue.sync_q, ui_queue.sync_q, data_dir, pan_conf.servers.values(), pan_conf
+        )
+
+        glib_fut = loop.run_in_executor(None, glib_thread.run)
+        message_router_task = loop.create_task(
+            message_router(ui_queue.async_q, pan_queue.async_q, proxies)
+        )
+
+    else:
+        glib_thread = None
+        glib_fut = None
+        pan_queue = None
+        ui_queue = None
+        message_router_task = None
 
     try:
 
         for server_conf in pan_conf.servers.values():
             proxy, runner, site = loop.run_until_complete(
-                init(data_dir, server_conf, pan_queue.async_q, ui_queue.async_q)
+                init(data_dir, server_conf, pan_queue, ui_queue)
             )
             servers.append((proxy, runner, site))
             proxies.append(proxy)
@@ -172,20 +191,10 @@ def main(context, log_level, config):
     except keyring.errors.KeyringError as e:
         context.fail(f"Error initializing keyring: {e}")
 
-    glib_thread = GlibT(
-        pan_queue.sync_q, ui_queue.sync_q, data_dir, pan_conf.servers.values(), pan_conf
-    )
-
-    glib_fut = loop.run_in_executor(None, glib_thread.run)
-
     async def wait_for_glib(glib_thread, fut):
         glib_thread.stop()
         await fut
 
-    message_router_task = loop.create_task(
-        message_router(ui_queue.async_q, pan_queue.async_q, proxies)
-    )
-
     home = os.path.expanduser("~")
     os.chdir(home)
 
@@ -208,9 +217,13 @@ def main(context, log_level, config):
         for _, runner, _ in servers:
             loop.run_until_complete(runner.cleanup())
 
+        if glib_fut:
             loop.run_until_complete(wait_for_glib(glib_thread, glib_fut))
+
+        if message_router_task:
             message_router_task.cancel()
             loop.run_until_complete(asyncio.wait({message_router_task}))
+
         loop.close()
 
 

pantalaimon/ui.py

@@ -12,6 +12,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from importlib import util
+
+if util.find_spec("pybdubs") and util.find_spec("gi.repository") and False:
     from collections import defaultdict
     from queue import Empty
 
@@ -46,6 +49,8 @@ from pantalaimon.thread_messages import (
         UpdateUsersMessage,
     )
 
+    UI_ENABLED = True
+
 
     class IdCounter:
         def __init__(self):
@@ -574,3 +579,6 @@ class GlibT:
             if self.loop:
                 self.loop.quit()
                 self.loop = None
+
+else:
+    UI_ENABLED = False

setup.py

@@ -25,18 +25,20 @@ setup(
         "keyring",
         "logbook",
         "peewee",
-        "dbus-python",
-        "PyGObject",
-        "pydbus",
         "janus",
         "prompt_toolkit",
-        "notify2",
         "typing;python_version<'3.5'",
         "matrix-nio[e2e] >= 0.4"
     ],
     extras_require={
         "e2e_search":  [
             "tantivy",
+        ],
+        "ui": [
+            "dbus-python",
+            "PyGObject",
+            "pydbus",
+            "notify2",
         ]
     },
     entry_points={