Add ability to specify custom path for elixirLS

Author: amiralies

package.json

@@ -32,6 +32,11 @@
           "type": "boolean",
           "default": true,
           "description": "Enable elixir extension"
+        },
+        "elixir.pathToElixirLS": {
+          "type": "string",
+          "default": "",
+          "description": "Custom path for elixirLS, use this options if you don't want use bundled elixirLS"
         }
       }
     }

src/index.js

@@ -9,7 +9,16 @@ exports.activate = (context: ExtensionContext) => {
     return;
   }
 
-  const command = context.asAbsolutePath('./els-release/language_server.sh');
+  const getElsPath = () => {
+    const { pathToElixirLS } = config;
+    if (pathToElixirLS && pathToElixirLS.length > 0) {
+      return pathToElixirLS;
+    }
+
+    return context.asAbsolutePath('./els-release/language_server.sh');
+  };
+
+  const command = getElsPath();
   const serverOptions = {
     command,
   };