From 76856fc3334edfc59c3b9652b92f1dbaea3de1b2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Teo=20Klestrup=20R=C3=B6ijezon?= <teo@nullable.se>
Date: Wed, 29 Jul 2020 13:50:59 +0200
Subject: [PATCH] istioctl: bundle release metadata

This is required for `istioctl version` to return the correct info, and for
`istioctl install` to default to the correct Docker images.
---
 .../networking/cluster/istioctl/default.nix           | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/pkgs/applications/networking/cluster/istioctl/default.nix b/pkgs/applications/networking/cluster/istioctl/default.nix
index 60dc2119ac5..e4197a50ef1 100644
--- a/pkgs/applications/networking/cluster/istioctl/default.nix
+++ b/pkgs/applications/networking/cluster/istioctl/default.nix
@@ -14,11 +14,22 @@ buildGoModule rec {
 
   nativeBuildInputs = [ go-bindata ];
 
+  # Bundle charts
   preBuild = ''
     patchShebangs operator/scripts
     operator/scripts/create_assets_gen.sh
   '';
 
+  # Bundle release metadata
+  buildFlagsArray = let
+    attrs = [
+      "istio.io/pkg/version.buildVersion=${version}"
+      "istio.io/pkg/version.buildStatus=Nix"
+      "istio.io/pkg/version.buildTag=${version}"
+      "istio.io/pkg/version.buildHub=docker.io/istio"
+    ];
+  in ["-ldflags=${lib.concatMapStringsSep " " (attr: "-X ${attr}") attrs}"];
+
   subPackages = [ "istioctl/cmd/istioctl" ];
 
   meta = with lib; {