Do not use a list of command items to launch the LS on Linux/macOS

src/solidlsp/ls_handler.py

@@ -2,6 +2,7 @@ import asyncio
 import json
 import logging
 import os
+import platform
 import subprocess
 import threading
 import time
@@ -147,9 +148,15 @@ class SolidLanguageServerHandler:
         child_proc_env = os.environ.copy()
         child_proc_env.update(self.process_launch_info.env)
 
+        cmd = self.process_launch_info.cmd
+        is_windows = platform.system() == "Windows"
+        if not isinstance(cmd, str) and not is_windows:
+            # Since we are using the shell, we need to convert the command list to a single string
+            # on Linux/macOS
+            cmd = " ".join(cmd)
         log.info("Starting language server process via command: %s", self.process_launch_info.cmd)
         self.process = subprocess.Popen(
-            self.process_launch_info.cmd,
+            cmd,
             stdout=subprocess.PIPE,
             stdin=subprocess.PIPE,
             stderr=subprocess.PIPE,