Fix RFCOMM connect under uvloop and bump version to 0.1.4

fichero/printer.py

@@ -155,13 +155,18 @@ class RFCOMMClient:
         sock = _socket.socket(
             _socket.AF_BLUETOOTH, _socket.SOCK_STREAM, _socket.BTPROTO_RFCOMM
         )
-        sock.setblocking(False)
         loop = asyncio.get_running_loop()
         try:
-            await asyncio.wait_for(
-                loop.sock_connect(sock, (self._address, self._channel)),
-                timeout=10.0,
+            # uvloop's sock_connect path goes through getaddrinfo and doesn't
+            # support AF_BLUETOOTH addresses reliably. Use direct socket connect
+            # in a thread instead.
+            sock.settimeout(10.0)
+            await loop.run_in_executor(
+                None,
+                sock.connect,
+                (self._address, self._channel),
             )
+            sock.setblocking(False)
         except asyncio.TimeoutError as exc:
             sock.close()
             raise PrinterTimeout(

fichero_printer/config.yaml

@@ -1,5 +1,5 @@
 name: "Fichero Printer"
-version: "0.1.3"
+version: "0.1.4"
 slug: "fichero_printer"
 description: "REST API for the Fichero D11s (AiYin) thermal label printer over Bluetooth"
 url: "https://git.leuschner.dev/Tobias/Fichero"

fichero_printer/fichero/printer.py

@@ -155,13 +155,18 @@ class RFCOMMClient:
         sock = _socket.socket(
             _socket.AF_BLUETOOTH, _socket.SOCK_STREAM, _socket.BTPROTO_RFCOMM
         )
-        sock.setblocking(False)
         loop = asyncio.get_running_loop()
         try:
-            await asyncio.wait_for(
-                loop.sock_connect(sock, (self._address, self._channel)),
-                timeout=10.0,
+            # uvloop's sock_connect path goes through getaddrinfo and doesn't
+            # support AF_BLUETOOTH addresses reliably. Use direct socket connect
+            # in a thread instead.
+            sock.settimeout(10.0)
+            await loop.run_in_executor(
+                None,
+                sock.connect,
+                (self._address, self._channel),
             )
+            sock.setblocking(False)
         except asyncio.TimeoutError as exc:
             sock.close()
             raise PrinterTimeout(

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "fichero-printer"
-version = "0.1.3"
+version = "0.1.4"
 description = "Fichero D11s thermal label printer - BLE CLI tool"
 requires-python = ">=3.10"
 dependencies = [