From d80115a09b4ab8def48803243e138cb6b389c3b6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9-Patrick=20Bubel?= <code@apb.name>
Date: Thu, 4 Feb 2021 03:58:24 +0100
Subject: [PATCH] zerofree: install manpage and COPYING file

---
 pkgs/tools/filesystems/zerofree/default.nix | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/pkgs/tools/filesystems/zerofree/default.nix b/pkgs/tools/filesystems/zerofree/default.nix
index 2489357f73f9..1447ca36a136 100644
--- a/pkgs/tools/filesystems/zerofree/default.nix
+++ b/pkgs/tools/filesystems/zerofree/default.nix
@@ -1,6 +1,11 @@
-{ lib, stdenv, fetchurl, e2fsprogs }:
+{ lib, stdenv, fetchurl, installShellFiles, e2fsprogs }:
 
-stdenv.mkDerivation rec {
+let
+  manpage = fetchurl {
+    url = "https://manpages.ubuntu.com/manpages.gz/xenial/man8/zerofree.8.gz";
+    sha256 = "0y132xmjl02vw41k794psa4nmjpdyky9f6sf0h4f7rvf83z3zy4k";
+  };
+in stdenv.mkDerivation rec {
   pname = "zerofree";
   version = "1.1.1";
 
@@ -9,12 +14,14 @@ stdenv.mkDerivation rec {
     sha256 = "0rrqfa5z103ws89vi8kfvbks1cfs74ix6n1wb6vs582vnmhwhswm";
   };
 
-  buildInputs = [ e2fsprogs ];
+  buildInputs = [ e2fsprogs installShellFiles ];
 
   installPhase = ''
-    mkdir -p $out/bin
+    mkdir -p $out/bin $out/share/zerofree
     cp zerofree $out/bin
-'';
+    cp COPYING $out/share/zerofree/COPYING
+    installManPage ${manpage}
+  '';
 
   meta = {
     homepage = "https://frippery.org/uml/";