ecmtools: refactor

pkgs/by-name/ec/ecmtools/package.nix

···
-{ lib, stdenv, fetchFromGitHub }:
+{ lib
+, stdenv
+, fetchFromGitHub
+}:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "ecm-tools";
   version = "1.0.3";
 
   src = fetchFromGitHub {
     owner = "alucryd";
     repo = "ecm-tools";
-    rev = "v${version}";
-    sha256 = "1rvyx5gcy8lfklgj80szlz3312x45wzx0d9jsgwyvy8f6m4nnb0c";
+    rev = "v${finalAttrs.version}";
+    hash = "sha256-DCxrSTUO+e350zI10D8vpIswxqdfAyQfnY4iz17pfuc=";
   };
 
   dontConfigure = true;
 
   installPhase = ''
+    runHook preInstall
+
     install --directory --mode=755 $out/bin
     install --mode=755 bin2ecm $out/bin
-    (cd $out/bin; ln -s bin2ecm ecm2bin)
+    pushd $out/bin
+    ln -s bin2ecm ecm2bin
+    popd
+
+    runHook postInstall
   '';
 
-  meta = with lib; {
+  meta = {
     description = "A utility to uncompress ECM files to BIN CD format";
     homepage = "https://github.com/alucryd/ecm-tools";
-    license = licenses.gpl3;
-    maintainers = with maintainers; [ AndersonTorres ];
-    platforms = platforms.all;
+    license = lib.licenses.gpl3Plus;
+    mainProgram = "bin2ecm";
+    maintainers = with lib.maintainers; [ AndersonTorres ];
+    platforms = lib.platforms.all;
   };
-}
+})