From c709ba1dd0c53730f708b04416d4e74777b44575 Mon Sep 17 00:00:00 2001
From: Arkadiy Paronyan <arkady.paronyan@gmail.com>
Date: Sat, 28 Jul 2018 19:25:51 +0200
Subject: [PATCH] Update version on git head change (#444)

---
 substrate/build.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/substrate/build.rs b/substrate/build.rs
index 493d25315c..efe19e0a8d 100644
--- a/substrate/build.rs
+++ b/substrate/build.rs
@@ -22,4 +22,5 @@ const ERROR_MSG: &'static str = "Failed to generate metadata files";
 
 fn main() {
 	vergen(OutputFns::all()).expect(ERROR_MSG);
+	println!("cargo:rerun-if-changed=.git/HEAD");
 }