From a9667fc80fbd5b7ba49c025fbf8cfe121acef68d Mon Sep 17 00:00:00 2001
From: Matthieu Coudron <mcoudron@hotmail.com>
Date: Thu, 2 Sep 2021 22:57:06 +0200
Subject: [PATCH] luarocks: add bash/zsh completion

---
 pkgs/development/tools/misc/luarocks/default.nix | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/pkgs/development/tools/misc/luarocks/default.nix b/pkgs/development/tools/misc/luarocks/default.nix
index f3ec4b4d7a43..c2449de5dd28 100644
--- a/pkgs/development/tools/misc/luarocks/default.nix
+++ b/pkgs/development/tools/misc/luarocks/default.nix
@@ -5,6 +5,7 @@
 , zip
 # some packages need to be compiled with cmake
 , cmake
+, installShellFiles
 }:
 
 stdenv.mkDerivation rec {
@@ -37,9 +38,9 @@ stdenv.mkDerivation rec {
     fi
   '';
 
-  buildInputs = [
-    lua curl makeWrapper which
-  ];
+  nativeBuildInputs = [ makeWrapper installShellFiles ];
+
+  buildInputs = [ lua curl which ];
 
   postInstall = ''
     sed -e "1s@.*@#! ${lua}/bin/lua$LUA_SUFFIX@" -i "$out"/bin/*
@@ -52,6 +53,9 @@ stdenv.mkDerivation rec {
               --suffix LUA_CPATH ";" "$(echo "$out"/share/lua/*/)?/init.lua"
         }
     done
+
+    installShellCompletion --cmd luarocks --bash <($out/bin/luarocks completion bash)
+    installShellCompletion --cmd luarocks --zsh <($out/bin/luarocks completion zsh)
   '';
 
   propagatedBuildInputs = [ zip unzip cmake ];