From 5aa4697af41090b89a84209043e5193a681df616 Mon Sep 17 00:00:00 2001
From: Nikolay Amiantov <ab@fmap.me>
Date: Wed, 26 Jan 2022 23:29:01 +0900
Subject: [PATCH] dpdk: split examples, wrap dpdk-devbind

---
 pkgs/os-specific/linux/dpdk/default.nix | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/pkgs/os-specific/linux/dpdk/default.nix b/pkgs/os-specific/linux/dpdk/default.nix
index 0c44945620c..1e4f50e42df 100644
--- a/pkgs/os-specific/linux/dpdk/default.nix
+++ b/pkgs/os-specific/linux/dpdk/default.nix
@@ -1,9 +1,9 @@
 { stdenv, lib
 , kernel
 , fetchurl
-, pkg-config, meson, ninja
+, pkg-config, meson, ninja, makeWrapper
 , libbsd, numactl, libbpf, zlib, libelf, jansson, openssl, libpcap, rdma-core
-, doxygen, python3
+, doxygen, python3, pciutils
 , withExamples ? []
 , shared ? false }:
 
@@ -20,6 +20,7 @@ in stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [
+    makeWrapper
     doxygen
     meson
     ninja
@@ -71,11 +72,18 @@ in stdenv.mkDerivation rec {
     # Remove Sphinx cache files. Not only are they not useful, but they also
     # contain store paths causing spurious dependencies.
     rm -rf $out/share/doc/dpdk/html/.doctrees
+
+    wrapProgram $out/bin/dpdk-devbind.py \
+      --prefix PATH : "${lib.makeBinPath [ pciutils ]}"
   '' + lib.optionalString (withExamples != []) ''
-    find examples -type f -executable -exec install {} $out/bin \;
+    mkdir -p $examples/bin
+    find examples -type f -executable -exec install {} $examples/bin \;
   '';
 
-  outputs = [ "out" "doc" ] ++ lib.optional mod "kmod";
+  outputs =
+    [ "out" "doc" ]
+    ++ lib.optional mod "kmod"
+    ++ lib.optional (withExamples != []) "examples";
 
   meta = with lib; {
     description = "Set of libraries and drivers for fast packet processing";