icr: init at 0.5.0

pkgs/development/tools/icr/default.nix

@@ -0,0 +1,34 @@
+{ stdenv, fetchFromGitHub, crystal, shards, which
+, openssl, readline }:
+
+stdenv.mkDerivation rec {
+  name = "icr";
+  version = "0.5.0";
+
+  src = fetchFromGitHub {
+    owner  = "crystal-community";
+    repo   = "icr";
+    rev    = "v${version}";
+    sha256 = "1vavdzgm06ssnxm6mylki6xma0mfsj63n5kivhk1v4pg4xj966w5";
+  };
+
+  postPatch = ''
+    substituteInPlace Makefile \
+      --replace /usr/local $out
+  '';
+
+  buildInputs = [ openssl readline ];
+
+  nativeBuildInputs = [ crystal shards which ];
+
+  doCheck = true;
+
+  checkTarget = "test";
+
+  meta = with stdenv.lib; {
+    description = "Interactive console for the Crystal programming language";
+    homepage = https://github.com/crystal-community/icr;
+    license = licenses.mit;
+    maintainers = with maintainers; [ peterhoeg ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -6416,6 +6416,8 @@ with pkgs;
     crystal_0_26
     crystal;
 
+  icr = callPackage ../development/tools/icr {};
+
   devpi-client = callPackage ../development/tools/devpi-client {};
 
   devpi-server = callPackage ../development/tools/devpi-server {};