Try to fix serial ports listing (#1155)

esphome/util.py

@@ -1,4 +1,4 @@
-from typing import Union
+from typing import Union, List
 
 import collections
 import io
@@ -7,6 +7,7 @@ import os
 import re
 import subprocess
 import sys
+from pathlib import Path
 
 from esphome import const
 
@@ -256,3 +257,34 @@ def filter_yaml_files(files):
     files = [f for f in files if os.path.basename(f) != 'secrets.yaml']
     files = [f for f in files if not os.path.basename(f).startswith('.')]
     return files
+
+
+class SerialPort:
+    def __init__(self, path: str, description: str):
+        self.path = path
+        self.description = description
+
+
+# from https://github.com/pyserial/pyserial/blob/master/serial/tools/list_ports.py
+def get_serial_ports() -> List[SerialPort]:
+    from serial.tools.list_ports import comports
+    result = []
+    for port, desc, info in comports(include_links=True):
+        if not port:
+            continue
+        if "VID:PID" in info:
+            result.append(SerialPort(path=port, description=desc))
+    # Also add objects in /dev/serial/by-id/
+    # ref: https://github.com/esphome/issues/issues/1346
+
+    by_id_path = Path('/dev/serial/by-id')
+    if sys.platform.lower().startswith('linux') and by_id_path.exists():
+        from serial.tools.list_ports_linux import SysFS
+
+        for path in by_id_path.glob('*'):
+            device = SysFS(path)
+            if device.subsystem == 'platform':
+                result.append(SerialPort(path=str(path), description=info[1]))
+
+    result.sort(key=lambda x: x.path)
+    return result