From fa3c25ab661349a8ce0afe9ec8657c11f82de3a2 Mon Sep 17 00:00:00 2001
From: Badlop <badlop@process-one.net>
Date: Tue, 26 Dec 2023 13:11:34 +0100
Subject: [PATCH] Mix: New option vars_config_path to set path to vars.config
 (4128)

Useful when setting ejabberd as dependency in another Elixir project,
and you want to enable or disable some ejabberd dependencies, see
https://www.process-one.net/blog/how-to-use-ejabberd-as-an-elixir-application-dependency/
---
 mix.exs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/mix.exs b/mix.exs
index 11b347df8..9eba55213 100644
--- a/mix.exs
+++ b/mix.exs
@@ -171,7 +171,13 @@ defmodule Ejabberd.MixProject do
   end
 
   defp vars do
-    case :file.consult("vars.config") do
+    filepath = case Application.fetch_env(:ejabberd, :vars_config_path) do
+      :error ->
+        "vars.config"
+      {:ok, path} ->
+        path
+    end
+    case :file.consult(filepath) do
       {:ok,config} -> config
       _ -> [zlib: true]
     end