feat: Add support for additional platforms (Windows&macOS) for CPP LSP

src/multilspy/language_servers/clangd_language_server/clangd_language_server.py

@@ -52,25 +52,33 @@ def setup_runtime_dependencies(self, logger: MultilspyLogger, config: MultilspyC
             del d["_description"]
 
         assert platform_id.value in [
-            "linux-x64"
-        ], "Only linux-x64 is supported for in multilspy at the moment"
+            "linux-x64",
+            "win-x64",
+            "osx-arm64",
+        ], "Unsupported platform: " + platform_id.value
 
         runtime_dependencies = d["runtimeDependencies"]
         runtime_dependencies = [
             dependency for dependency in runtime_dependencies if dependency["platformId"] == platform_id.value
         ]
         assert len(runtime_dependencies) == 1
-        dependency = runtime_dependencies[0]
+        # Select dependency matching the current platform
+        dependency = next((dep for dep in runtime_dependencies if dep["platformId"] == platform_id.value), None)
+        if dependency is None:
+            raise RuntimeError(f"No runtime dependency found for platform {platform_id.value}")
 
-        clangd_ls_dir = os.path.join(os.path.dirname(__file__), "static/clangd")
+        clangd_ls_dir = os.path.join(os.path.dirname(__file__), "static", "clangd")
         clangd_executable_path = os.path.join(clangd_ls_dir, "clangd_19.1.2", "bin", dependency["binaryName"])
         if not os.path.exists(clangd_ls_dir):
             os.makedirs(clangd_ls_dir)
             if dependency["archiveType"] == "zip":
                 FileUtils.download_and_extract_archive(
                     logger, dependency["url"], clangd_ls_dir, dependency["archiveType"]
                 )
-        assert os.path.exists(clangd_executable_path)
+            else:
+                raise RuntimeError(f"Unsupported archive type: {dependency['archiveType']}")
+            if not os.path.exists(clangd_executable_path):
+                raise FileNotFoundError(f"clangd executable was not found at {clangd_executable_path} after extraction")
         os.chmod(clangd_executable_path, stat.S_IEXEC)
 
         return clangd_executable_path

src/multilspy/language_servers/clangd_language_server/runtime_dependencies.json

@@ -8,6 +8,22 @@
             "platformId": "linux-x64",
             "archiveType": "zip",
             "binaryName": "clangd"
+        },
+        {
+            "id": "Clangd",
+            "description": "Clangd for Windows (x64)",
+            "url": "https://github.com/clangd/clangd/releases/download/19.1.2/clangd-windows-19.1.2.zip",
+            "platformId": "windows-x64",
+            "archiveType": "zip",
+            "binaryName": "clangd.exe"
+        },
+        {
+            "id": "Clangd",
+            "description": "Clangd for macOS (Arm64)",
+            "url": "https://github.com/clangd/clangd/releases/download/19.1.2/clangd-mac-19.1.2.zip",
+            "platformId": "osx-arm64",
+            "archiveType": "zip",
+            "binaryName": "clangd"
         }
     ]
 }