From 28c08a222e13bf9533e3f92fb54af08c1658a509 Mon Sep 17 00:00:00 2001
From: Carlos Alexandro Becker <caarlos0@users.noreply.github.com>
Date: Mon, 27 Mar 2023 13:50:10 -0300
Subject: [PATCH] nfpm: add man and completions

Signed-off-by: Carlos Alexandro Becker <caarlos0@users.noreply.github.com>
---
 .../tools/package-management/nfpm/default.nix | 21 ++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/pkgs/tools/package-management/nfpm/default.nix b/pkgs/tools/package-management/nfpm/default.nix
index 6577334b228e..962a2a92058d 100644
--- a/pkgs/tools/package-management/nfpm/default.nix
+++ b/pkgs/tools/package-management/nfpm/default.nix
@@ -1,4 +1,10 @@
-{ lib, buildGoModule, fetchFromGitHub }:
+{ stdenv
+, lib
+, buildGoModule
+, fetchFromGitHub
+, installShellFiles
+, buildPackages
+}:
 
 buildGoModule rec {
   pname = "nfpm";
@@ -15,6 +21,19 @@ buildGoModule rec {
 
   ldflags = [ "-s" "-w" "-X main.version=${version}" ];
 
+  nativeBuildInputs = [ installShellFiles ];
+
+  postInstall =
+    let emulator = stdenv.hostPlatform.emulator buildPackages;
+    in ''
+      ${emulator} $out/bin/nfpm man > nfpm.1
+      installManPage ./nfpm.1
+      installShellCompletion --cmd nfpm \
+        --bash <(${emulator} $out/bin/nfpm completion bash) \
+        --fish <(${emulator} $out/bin/nfpm completion fish) \
+        --zsh  <(${emulator} $out/bin/nfpm completion zsh)
+    '';
+
   meta = with lib; {
     description = "A simple deb and rpm packager written in Go";
     homepage = "https://github.com/goreleaser/nfpm";