From 695b8ba0f069605836f13cedae194c50df6c10ed Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Tue, 31 Dec 2019 20:54:31 +0100
Subject: [PATCH] Sanity check for missing server binary

---
 editors/code/src/client.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/editors/code/src/client.ts b/editors/code/src/client.ts
index 743384bd783..1ff64a9303a 100644
--- a/editors/code/src/client.ts
+++ b/editors/code/src/client.ts
@@ -1,5 +1,6 @@
 import { homedir } from 'os';
 import * as lc from 'vscode-languageclient';
+import { spawnSync } from 'child_process';
 
 import { window, workspace } from 'vscode';
 import { Config } from './config';
@@ -13,6 +14,9 @@ export function createClient(config: Config): lc.LanguageClient {
     }
 
     const command = expandPathResolving(config.raLspServerPath);
+    if (spawnSync(command, ["--version"]).status !== 0) {
+        window.showErrorMessage(`Unable to execute '${command} --version'`);
+    }
     const run: lc.Executable = {
         command,
         options: { cwd: folder },