Suppress Ruff's (unsupported) Structural Pattern Matching syntax errors

Work-around with suppression of syntax error printed has been added in
version 0.0.245.

- astral-sh/ruff#2697
- astral-sh/ruff#2505 (comment)

pyproject.toml

@@ -45,7 +45,7 @@ development = [
     "pytest",
     "pyupgrade",
     "reuse",
-    "ruff",
+    "ruff>=0.0.245",
     "setuptools-scm[toml]>=6.2",
     "twine",
     "validate-pyproject[all]",

run-all-linters

@@ -25,9 +25,7 @@ echo "ruff..."
 "$PYTHON" -m ruff --diff "${PYTHON_SOURCES_DIRS[@]}" || \
     (echo "Run 'ruff --fix ${PYTHON_SOURCES_DIRS[*]}' to fix auto-fixable."; exit 1)
 # Also lint for non-auto-fixables - requires a separate invocation apparently.
-# Disabled for now due to missing support for structural pattern matching:
-# https://github.com/charliermarsh/ruff/issues/282
-# "$PYTHON" -m ruff --show-source ${PYTHON_SOURCES_DIRS}
+"$PYTHON" -m ruff "${PYTHON_SOURCES_DIRS[@]}"
 echo "OK!"
 
 # Pyupgrade will never provide a check-mode in itself unfortunately. 😥

src/purepythonmilter/api/logger.py

@@ -42,7 +42,7 @@ def process(self, msg: Any, kwargs: LoggingKwargs) -> tuple[Any, LoggingKwargs]:
         assert hasattr(self, "extra") and self.extra is not None
         # If we get instantiated with a connection ID context, let's use that.
         # Otherwise, try again at process time to obtain it.
-        match self.extra.get("connection_id"):
+        match self.extra.get("connection_id"):  # noqa: E999
             case models.MilterServerConnectionID() as connection_id:
                 connection_id_short = connection_id.short
             case _:

src/purepythonmilter/examples/append_header_ip/__main__.py

@@ -31,7 +31,7 @@ async def on_connect(cmd: Connect) -> Continue:
     at the later approriate end_of_message stage for you.
     """
     global _headername, logger
-    match cmd.connection_info_args:
+    match cmd.connection_info_args:  # noqa: E999
         case ConnectionInfoArgsIPv4() | ConnectionInfoArgsIPv6():
             ip = str(cmd.connection_info_args.addr)
             logger.info(f"on_connect(): adding header '{_headername}: {ip}'")

src/purepythonmilter/protocol/commands.py

@@ -152,7 +152,7 @@ def _decode_connection_info(self) -> models.ConnectionInfoArgs:
                 f"Could not decode hostname in socket data {hostname_bin=!r}"
             ) from e
 
-        match self._decode_socket_data(socket_data.rstrip(b"\x00")):
+        match self._decode_socket_data(socket_data.rstrip(b"\x00")):  # noqa: E999
             case ipaddress.IPv4Address() as ip, int() as port:
                 return models.ConnectionInfoArgsIPv4(
                     hostname=hostname, addr=ip, port=port

src/purepythonmilter/server/session.py

@@ -153,7 +153,7 @@ async def _commands_consumer(self) -> None:
                 await self._process_queue_item(queue_item)
 
     async def _process_queue_item(self, queue_item: QueueEntry) -> None:
-        match queue_item.command:
+        match queue_item.command:  # noqa: E999
             case commands.OptionsNegotiate():
                 # This one is an exception to the rule; implemented here.
                 await self.on_options_negotiate(queue_item.command)

tests/protocol/test_commands.py

@@ -48,7 +48,7 @@ def _make_options_negotiate_data(
     )
     action_int = int.from_bytes(optneg_data_no_flags[4:8], "big", signed=False)
     proto_int = int.from_bytes(optneg_data_no_flags[8:12], "big", signed=False)
-    match flag:
+    match flag:  # noqa: E999
         case (
             definitions.ProtocolFlagsDisableCallback()
             | definitions.ProtocolFlagsOther()