From c625468d246d0ff8b8764c887c6612e2c60c802b Mon Sep 17 00:00:00 2001
From: larstvei <larstvei@ifi.uio.no>
Date: Sun, 20 Nov 2022 13:17:46 +0100
Subject: [PATCH] Add local package for Maude

The "official" package for Maude is broken on darwin. This one downloads and
installs the binary. Not as nice as building from source, but much easier...
---
 flake.nix                  |  2 ++
 modules/home.nix           |  1 +
 pkgs/maude-mac/default.nix | 39 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 42 insertions(+)
 create mode 100644 pkgs/maude-mac/default.nix

diff --git a/flake.nix b/flake.nix
index 763c364..166c8c6 100644
--- a/flake.nix
+++ b/flake.nix
@@ -69,6 +69,8 @@
                     ./patches/system-appearance.patch
                   ];
                 });
+
+               maude-mac = final.callPackage ./pkgs/maude-mac {};
               })
             ];
           };
diff --git a/modules/home.nix b/modules/home.nix
index 4e03604..8faf6ce 100644
--- a/modules/home.nix
+++ b/modules/home.nix
@@ -37,6 +37,7 @@
     htop
     inkscape
     leiningen
+    maude-mac
     nixpkgs-fmt
     jdk
     pandoc
diff --git a/pkgs/maude-mac/default.nix b/pkgs/maude-mac/default.nix
new file mode 100644
index 0000000..e771fb4
--- /dev/null
+++ b/pkgs/maude-mac/default.nix
@@ -0,0 +1,39 @@
+{ lib, stdenv, fetchurl, unzip, ... }:
+
+stdenv.mkDerivation rec {
+  pname = "maude";
+  version = "3.2.1";
+
+  src = fetchurl {
+    url = "https://github.com/SRI-CSL/Maude/releases/download/${version}/Maude-${version}-macos.zip";
+    sha256 = "sha256-m+bgdYzzoQq6knrUkRtr3rXqHLNgr3kquKzuSUIDa2I=";
+  };
+
+  nativeBuildInputs = [ unzip ];
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp *.maude $out/bin/
+    cp maude.Darwin64 $out/bin/maude
+  '';
+
+  meta = with lib; {
+    homepage = "http://maude.cs.illinois.edu/";
+    description = "High-level specification language";
+    license = lib.licenses.gpl2Plus;
+
+    longDescription = ''
+      Maude is a high-performance reflective language and system
+      supporting both equational and rewriting logic specification and
+      programming for a wide range of applications. Maude has been
+      influenced in important ways by the OBJ3 language, which can be
+      regarded as an equational logic sublanguage. Besides supporting
+      equational specification and programming, Maude also supports
+      rewriting logic computation.
+    '';
+
+    sourceProvenance = with sourceTypes; [ binaryNativeCode ];
+    platforms = platforms.darwin;
+    maintainers = with maintainers; [ larstvei ];
+  };
+}