mint: Use buildCrystalPackage

pkgs/development/compilers/mint/default.nix

@@ -1,40 +1,7 @@
-# Updating the dependencies for this package:
-#
-#   wget https://raw.githubusercontent.com/mint-lang/mint/0.3.1/shard.lock
-#   nix-shell -p crystal libyaml --run 'crystal run crystal2nix.cr'
-#
-{stdenv, lib, fetchFromGitHub, crystal, zlib, openssl_1_0_2, duktape, which, libyaml }:
-let
-  crystalPackages = lib.mapAttrs (name: src:
-    stdenv.mkDerivation {
-      name = lib.replaceStrings ["/"] ["-"] name;
-      src = fetchFromGitHub src;
-      phases = "installPhase";
-      installPhase = ''cp -r $src $out'';
-      passthru = { libName = name; };
-    }
-  ) (import ./shards.nix);
-
-  crystalLib = stdenv.mkDerivation {
-    name = "crystal-lib";
-    src = lib.attrValues crystalPackages;
-    libNames = lib.mapAttrsToList (k: v: [k v]) crystalPackages;
-    phases = "buildPhase";
-    buildPhase = ''
-      mkdir -p $out
-      linkup () {
-        while [ "$#" -gt 0 ]; do
-          ln -s $2 $out/$1
-          shift; shift
-        done
-      }
-      linkup $libNames
-    '';
-  };
-in
-stdenv.mkDerivation rec {
+{ lib, fetchFromGitHub, crystal, zlib, openssl_1_0_2, duktape, which, libyaml }:
+crystal.buildCrystalPackage rec {
   version = "0.5.0";
-  name = "mint-${version}";
+  pname = "mint";
   src = fetchFromGitHub {
     owner = "mint-lang";
     repo = "mint";
@@ -42,23 +9,19 @@ stdenv.mkDerivation rec {
     sha256 = "0vxbx38c390rd2ysvbwgh89v2232sh5rbsp3nk9wzb70jybpslvl";
   };
 
-  nativeBuildInputs = [ which crystal zlib openssl_1_0_2 duktape libyaml ];
+  buildInputs = [ openssl_1_0_2 ];
 
-  buildPhase = ''
-    mkdir -p $out/bin tmp
-    cd tmp
-    ln -s ${crystalLib} lib
-    cp -r $src/* .
-    crystal build src/mint.cr -o $out/bin/mint --verbose --progress --release --no-debug
-  '';
-
-  installPhase = ''true'';
+  # Update with
+  #   nix-shell -p crystal2nix --run crystal2nix
+  # with mint's shard.lock file in the current directory
+  shardsFile = ./shards.nix;
+  crystalBinaries.mint.src = "src/mint.cr";
 
   meta = {
     description = "A refreshing language for the front-end web";
     homepage = https://mint-lang.com/;
-    license = stdenv.lib.licenses.bsd3;
-    maintainers = with stdenv.lib.maintainers; [ manveru ];
+    license = lib.licenses.bsd3;
+    maintainers = with lib.maintainers; [ manveru ];
     platforms = [ "x86_64-linux" "i686-linux" "x86_64-darwin" ];
   };
 }