Avoid serializing PID

Fixes #871

Author: lukaszsamson

CHANGELOG.md

@@ -6,6 +6,7 @@
 
 - Fixed regression in debugger not respecting `MIX_ENV` and `MIX_TARGET`
 - Silence output from `dialyxir` making client disconnect from the server on elixir < 1.14
+- Avoid serializing PID to JSON
 
 ### v0.14.4: 20 April 2023
 

apps/language_server/lib/language_server/providers/execute_command/restart.ex

@@ -5,10 +5,13 @@ defmodule ElixirLS.LanguageServer.Providers.ExecuteCommand.Restart do
 
   @impl ElixirLS.LanguageServer.Providers.ExecuteCommand
   def execute(_args, _state) do
-    Task.start(fn ->
-      Logger.info("ElixirLS will restart")
-      Process.sleep(1000)
-      System.stop(0)
-    end)
+    {:ok, _pid} =
+      Task.start(fn ->
+        Logger.info("ElixirLS will restart")
+        Process.sleep(1000)
+        System.stop(0)
+      end)
+
+    {:ok, %{}}
   end
 end

apps/language_server/mix.exs

@@ -1,10 +1,10 @@
 defmodule ElixirLS.LanguageServer.Mixfile do
   use Mix.Project
 
-  @version (__DIR__
-    |> Path.join("../../VERSION")
-    |> File.read!()
-    |> String.trim())
+  @version __DIR__
+           |> Path.join("../../VERSION")
+           |> File.read!()
+           |> String.trim()
 
   def project do
     [