From 848ed261f527c6af44b664895b4a42ab434f297b Mon Sep 17 00:00:00 2001
From: Silvan Mosberger <contact@infinisil.com>
Date: Thu, 2 Apr 2020 20:56:42 +0200
Subject: [PATCH] nfs-utils: Add enablePython argument

If turned off, all binaries that need python are excluded

With the argument disabled, this reduces closure size from 219.5M to
160.3M
---
 pkgs/os-specific/linux/nfs-utils/default.nix | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/pkgs/os-specific/linux/nfs-utils/default.nix b/pkgs/os-specific/linux/nfs-utils/default.nix
index 74363be47f4..20dc6a094e7 100644
--- a/pkgs/os-specific/linux/nfs-utils/default.nix
+++ b/pkgs/os-specific/linux/nfs-utils/default.nix
@@ -1,6 +1,7 @@
 { stdenv, fetchurl, fetchpatch, lib, pkgconfig, utillinux, libcap, libtirpc, libevent
 , sqlite, kerberos, kmod, libuuid, keyutils, lvm2, systemd, coreutils, tcp_wrappers
 , python3, buildPackages, nixosTests
+, enablePython ? true
 }:
 
 let
@@ -25,8 +26,7 @@ stdenv.mkDerivation rec {
   buildInputs = [
     libtirpc libcap libevent sqlite lvm2
     libuuid keyutils kerberos tcp_wrappers
-    python3
-  ];
+  ] ++ lib.optional enablePython python3;
 
   enableParallelBuilding = true;
 
@@ -96,6 +96,9 @@ stdenv.mkDerivation rec {
         -e "s,/sbin/modprobe,${kmod}/bin/modprobe,g" \
         -e "s,/usr/sbin,$out/bin,g" \
         $out/etc/systemd/system/*
+    '' + lib.optionalString (!enablePython) ''
+      # Remove all scripts that require python (currently mountstats and nfsiostat)
+      grep -l /usr/bin/python $out/bin/* | xargs -I {} rm -v {}
     '';
 
   # One test fails on mips.