pamix: 1.6 -> 2.0 and refactor (#379220)

pkgs/by-name/pa/pamix/package.nix

@@ -2,57 +2,47 @@
   lib,
   stdenv,
   fetchFromGitHub,
-  fetchpatch,
   pkg-config,
   cmake,
   libpulseaudio,
   ncurses,
+  nix-update-script,
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "pamix";
-  version = "1.6";
+  version = "2.0";
 
   src = fetchFromGitHub {
     owner = "patroclos";
     repo = "pamix";
-    rev = version;
-    sha256 = "1d44ggnwkf2gff62959pj45v3a2k091q8v154wc5pmzamam458wp";
+    tag = finalAttrs.version;
+    hash = "sha256-7UPz6YpsnZHpW7sOJdJU2wQ5jyFPWTHxoknago0W+Ss=";
   };
 
-  patches = [
-    # ncurses-6.3 support, included in next release
-    (fetchpatch {
-      name = "ncurses-6.3-p1.patch";
-      url = "https://github.com/patroclos/PAmix/commit/3400b9c048706c572373e4617b4d5fcdb8dd2505.patch";
-      sha256 = "0rw56a844pz876ad9p8hfvn2fkd5rh29gpp47h55g08spf0vwb2z";
-    })
-    (fetchpatch {
-      name = "ncurses-6.3-p2.patch";
-      url = "https://github.com/patroclos/PAmix/commit/5ef67fc5ef6fc0dc0b48ff07ba48093881561d9c.patch";
-      sha256 = "0f8shpdv2swxdz04bkqgmkvl6c17r5mn4slzr7xd6pvw8hh51p4h";
-    })
-  ];
-
   preConfigure = ''
-    substituteInPlace CMakeLists.txt --replace "/etc" "$out/etc/xdg"
+    substituteInPlace CMakeLists.txt --replace-fail "/etc" "$out/etc/xdg"
   '';
 
   nativeBuildInputs = [
     cmake
     pkg-config
   ];
+
   buildInputs = [
     libpulseaudio
     ncurses
   ];
 
-  meta = with lib; {
+  passthru.updateScript = nix-update-script { };
+
+  meta = {
     description = "Pulseaudio terminal mixer";
     homepage = "https://github.com/patroclos/PAmix";
-    license = licenses.mit;
-    platforms = platforms.linux;
-    maintainers = with maintainers; [ ericsagnes ];
+    changelog = "https://github.com/patroclos/PAmix/releases/tag/${finalAttrs.version}";
+    license = lib.licenses.mit;
+    platforms = lib.platforms.linux;
+    maintainers = with lib.maintainers; [ ericsagnes ];
     mainProgram = "pamix";
   };
-}
+})