From 5177c0fd3d3908674950c400b5ee37ab03251b1f Mon Sep 17 00:00:00 2001
From: Aaron Jheng <wentworth@outlook.com>
Date: Sat, 22 Oct 2022 07:44:49 +0000
Subject: [PATCH] ctlptl: install shell completions

---
 pkgs/development/tools/ctlptl/default.nix | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/tools/ctlptl/default.nix b/pkgs/development/tools/ctlptl/default.nix
index 569ba12d4923..fff37d7f2b87 100644
--- a/pkgs/development/tools/ctlptl/default.nix
+++ b/pkgs/development/tools/ctlptl/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildGoModule, fetchFromGitHub }:
+{ lib, buildGoModule, fetchFromGitHub, installShellFiles }:
 
 buildGoModule rec {
   pname = "ctlptl";
@@ -13,12 +13,21 @@ buildGoModule rec {
 
   vendorSha256 = "sha256-M9B/rfMBjYJb9szmYPVZqURlcv62qHOLJ3ka0v++z0s=";
 
+  nativeBuildInputs = [ installShellFiles ];
+
   ldflags = [
     "-s"
     "-w"
     "-X main.version=${version}"
   ];
 
+  postInstall = ''
+    installShellCompletion --cmd ctlptl \
+      --bash <($out/bin/ctlptl completion bash) \
+      --fish <($out/bin/ctlptl completion fish) \
+      --zsh <($out/bin/ctlptl completion zsh)
+  '';
+
   meta = with lib; {
     description = "CLI for declaratively setting up local Kubernetes clusters";
     homepage = "https://github.com/tilt-dev/ctlptl";