Do not resolve debugging serial port by default

platformio/debug/config/base.py

@@ -18,14 +18,13 @@ import os
 from platformio import fs, proc, util
 from platformio.compat import string_types
 from platformio.debug.exception import DebugInvalidOptionsError
-from platformio.device.finder import find_serial_port, is_pattern_port
 from platformio.project.config import ProjectConfig
 from platformio.project.helpers import load_build_metadata
 from platformio.project.options import ProjectOptions
 
 
 class DebugConfigBase:  # pylint: disable=too-many-instance-attributes
-    def __init__(self, platform, project_config, env_name):
+    def __init__(self, platform, project_config, env_name, port=None):
         self.platform = platform
         self.project_config = project_config
         self.env_name = env_name
@@ -49,6 +48,7 @@ class DebugConfigBase:  # pylint: disable=too-many-instance-attributes
         self._load_cmds = None
         self._port = None
 
+        self.port = port
         self.server = self._configure_server()
 
         try:
@@ -119,25 +119,10 @@ class DebugConfigBase:  # pylint: disable=too-many-instance-attributes
 
     @property
     def port(self):
-        initial_port = (
+        return (
             self.env_options.get("debug_port", self.tool_settings.get("port"))
             or self._port
         )
-        if initial_port and not is_pattern_port(initial_port):
-            return initial_port
-        port = find_serial_port(
-            initial_port,
-            board_config=self.board_config,
-            upload_protocol=self.tool_name,
-            prefer_gdb_port=True,
-        )
-        if port:
-            return port
-        if not self.tool_settings.get("require_debug_port"):
-            return None
-        raise DebugInvalidOptionsError(
-            "Please specify `debug_port` for the working environment"
-        )
 
     @port.setter
     def port(self, value):

platformio/debug/config/blackmagic.py

@@ -13,6 +13,8 @@
 # limitations under the License.
 
 from platformio.debug.config.base import DebugConfigBase
+from platformio.debug.exception import DebugInvalidOptionsError
+from platformio.device.finder import find_serial_port, is_pattern_port
 
 
 class BlackmagicDebugConfig(DebugConfigBase):
@@ -47,3 +49,25 @@ while ($busy)
 end
 set language auto
 """
+
+    @property
+    def port(self):
+        # pylint: disable=assignment-from-no-return
+        initial_port = DebugConfigBase.port.fget(self)
+        if initial_port and not is_pattern_port(initial_port):
+            return initial_port
+        port = find_serial_port(
+            initial_port,
+            board_config=self.board_config,
+            upload_protocol=self.tool_name,
+            prefer_gdb_port=True,
+        )
+        if port:
+            return port
+        raise DebugInvalidOptionsError(
+            "Please specify `debug_port` for the working environment"
+        )
+
+    @port.setter
+    def port(self, value):
+        self._port = value

platformio/debug/config/generic.py

@@ -34,5 +34,6 @@ $INIT_BREAK
 """
 
     def __init__(self, *args, **kwargs):
+        if "port" not in kwargs:
+            kwargs["port"] = ":3333"
         super().__init__(*args, **kwargs)
-        self.port = ":3333"

platformio/debug/config/jlink.py

@@ -38,8 +38,9 @@ $INIT_BREAK
 """
 
     def __init__(self, *args, **kwargs):
+        if "port" not in kwargs:
+            kwargs["port"] = ":2331"
         super().__init__(*args, **kwargs)
-        self.port = ":2331"
 
     @property
     def server_ready_pattern(self):

platformio/debug/config/mspdebug.py

@@ -32,5 +32,6 @@ $INIT_BREAK
 """
 
     def __init__(self, *args, **kwargs):
+        if "port" not in kwargs:
+            kwargs["port"] = ":2000"
         super().__init__(*args, **kwargs)
-        self.port = ":2000"

platformio/debug/config/qemu.py

@@ -33,5 +33,6 @@ $INIT_BREAK
 """
 
     def __init__(self, *args, **kwargs):
+        if "port" not in kwargs:
+            kwargs["port"] = ":1234"
         super().__init__(*args, **kwargs)
-        self.port = ":1234"

platformio/debug/config/renode.py

@@ -35,8 +35,9 @@ monitor start
 """
 
     def __init__(self, *args, **kwargs):
+        if "port" not in kwargs:
+            kwargs["port"] = ":3333"
         super().__init__(*args, **kwargs)
-        self.port = ":3333"
 
     @property
     def server_ready_pattern(self):