From b52f5dba48d39a67112f95a15dd0a786959f0e52 Mon Sep 17 00:00:00 2001
From: Tim Cuthbertson <tim@gfxmonk.net>
Date: Sun, 22 Apr 2018 11:17:59 +1000
Subject: [PATCH 1/2] gup: simplify build expression

---
 .../tools/build-managers/gup/build.nix        | 16 ----------
 .../tools/build-managers/gup/default.nix      | 32 +++++++++++--------
 2 files changed, 18 insertions(+), 30 deletions(-)
 delete mode 100644 pkgs/development/tools/build-managers/gup/build.nix

diff --git a/pkgs/development/tools/build-managers/gup/build.nix b/pkgs/development/tools/build-managers/gup/build.nix
deleted file mode 100644
index a9af037bb81..00000000000
--- a/pkgs/development/tools/build-managers/gup/build.nix
+++ /dev/null
@@ -1,16 +0,0 @@
-# NOTE: this file is copied from the upstream repository for this package.
-# Please submit any changes you make here to https://github.com/timbertson/gup/
-
-{ stdenv, lib, python, which, pychecker ? null }:
-{ src, version, meta ? {} }:
-stdenv.mkDerivation {
-  inherit src meta;
-  name = "gup-${version}";
-  buildInputs = lib.remove null [ python which pychecker ];
-  SKIP_PYCHECKER = pychecker == null;
-  buildPhase = "make python";
-  installPhase = ''
-    mkdir $out
-    cp -r python/bin $out/bin
-  '';
-}
diff --git a/pkgs/development/tools/build-managers/gup/default.nix b/pkgs/development/tools/build-managers/gup/default.nix
index 8d1ad4490e9..748a59bda2f 100644
--- a/pkgs/development/tools/build-managers/gup/default.nix
+++ b/pkgs/development/tools/build-managers/gup/default.nix
@@ -1,5 +1,5 @@
-{ stdenv, fetchFromGitHub, lib, python, which }:
-let
+{ stdenv, fetchFromGitHub, lib, python, which, pychecker ? null }:
+stdenv.mkDerivation rec {
   version = "0.7.0";
   src = fetchFromGitHub {
     sha256 = "1pwnmlq2pgkkln9sgz4wlb9dqlqw83bkf105qljnlvggc21zm3pv";
@@ -7,15 +7,19 @@ let
     repo = "gup";
     owner = "timbertson";
   };
-in
-import ./build.nix
-  { inherit stdenv lib python which; }
-  { inherit src version;
-    meta = {
-      inherit (src.meta) homepage;
-      description = "A better make, inspired by djb's redo";
-      license = stdenv.lib.licenses.lgpl2Plus;
-      maintainers = [ stdenv.lib.maintainers.timbertson ];
-      platforms = stdenv.lib.platforms.all;
-    };
-  }
+  name = "gup-${version}";
+  buildInputs = lib.remove null [ python which pychecker ];
+  SKIP_PYCHECKER = pychecker == null;
+  buildPhase = "make python";
+  installPhase = ''
+    mkdir $out
+    cp -r python/bin $out/bin
+  '';
+  meta = {
+    inherit (src.meta) homepage;
+    description = "A better make, inspired by djb's redo";
+    license = stdenv.lib.licenses.lgpl2Plus;
+    maintainers = [ stdenv.lib.maintainers.timbertson ];
+    platforms = stdenv.lib.platforms.all;
+  };
+}

From ad5b090853d381efcc0e2e7f87eaf364aa4abac6 Mon Sep 17 00:00:00 2001
From: Tim Cuthbertson <tim@gfxmonk.net>
Date: Sun, 22 Apr 2018 11:31:41 +1000
Subject: [PATCH 2/2] gup: add `passthru.updateScript`

---
 .../tools/build-managers/gup/default.nix      | 21 +++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/pkgs/development/tools/build-managers/gup/default.nix b/pkgs/development/tools/build-managers/gup/default.nix
index 748a59bda2f..f6d5b7b9b59 100644
--- a/pkgs/development/tools/build-managers/gup/default.nix
+++ b/pkgs/development/tools/build-managers/gup/default.nix
@@ -1,11 +1,11 @@
-{ stdenv, fetchFromGitHub, lib, python, which, pychecker ? null }:
+{ stdenv, fetchFromGitHub, nix-update-source, lib, python, which, pychecker ? null }:
 stdenv.mkDerivation rec {
   version = "0.7.0";
   src = fetchFromGitHub {
-    sha256 = "1pwnmlq2pgkkln9sgz4wlb9dqlqw83bkf105qljnlvggc21zm3pv";
-    rev = "version-${version}";
-    repo = "gup";
     owner = "timbertson";
+    repo = "gup";
+    rev = "version-0.7.0";
+    sha256 = "1pwnmlq2pgkkln9sgz4wlb9dqlqw83bkf105qljnlvggc21zm3pv";
   };
   name = "gup-${version}";
   buildInputs = lib.remove null [ python which pychecker ];
@@ -15,6 +15,19 @@ stdenv.mkDerivation rec {
     mkdir $out
     cp -r python/bin $out/bin
   '';
+  passthru.updateScript = ''
+    set -e
+    echo
+    cd ${toString ./.}
+    ${nix-update-source}/bin/nix-update-source \
+      --prompt version \
+      --replace-attr version \
+      --set owner timbertson \
+      --set repo gup \
+      --set type fetchFromGitHub \
+      --set rev 'version-{version}' \
+      --modify-nix default.nix
+  '';
   meta = {
     inherit (src.meta) homepage;
     description = "A better make, inspired by djb's redo";