From 849f544d6285c6f49718a74bcaff964aeffe3db4 Mon Sep 17 00:00:00 2001
From: Will Leinweber <will@users.noreply.github.com>
Date: Fri, 30 Dec 2022 18:24:40 +0100
Subject: [PATCH] build: add git sha to version when built with nix flake
 (#21210)

---
 contrib/flake.nix | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/contrib/flake.nix b/contrib/flake.nix
index e4242586fc..0898c943d7 100644
--- a/contrib/flake.nix
+++ b/contrib/flake.nix
@@ -10,9 +10,12 @@
     {
       overlay = final: prev: {
 
-        neovim = final.neovim-unwrapped.overrideAttrs (oa: {
-          version = "master";
+        neovim = final.neovim-unwrapped.overrideAttrs (oa: rec {
+          version = self.shortRev or "dirty";
           src = ../.;
+          preConfigure = ''
+            sed -i cmake.config/versiondef.h.in -e 's/@NVIM_VERSION_PRERELEASE@/-dev-${version}/'
+          '';
         });
 
         # a development binary to help debug issues