ophis: refactor

- get rid of python3Packages.callPackage
- get rid of rec
- fix version format

pkgs/development/compilers/ophis/default.nix

···
-{ lib, buildPythonApplication, fetchFromGitHub }:
+{
+  lib,
+  fetchFromGitHub,
+  python3Packages,
+  unstableGitUpdater,
+}:
 
-buildPythonApplication rec {
-  pname = "ophis";
-  version = "unstable-2019-04-13";
+let
+  self = python3Packages.buildPythonApplication {
+    pname = "ophis";
+    version = "0-unstable-2019-04-13";
 
-  src = fetchFromGitHub {
-    owner = "michaelcmartin";
-    repo = "Ophis";
-    rev = "99f074da278d4ec80689c0e22e20c5552ea12512";
-    sha256 = "2x8vwLTSngqQqmVrVh/mM4peATgaRqOSwrfm5XCkg/g=";
-  };
+    src = fetchFromGitHub {
+      owner = "michaelcmartin";
+      repo = "Ophis";
+      rev = "99f074da278d4ec80689c0e22e20c5552ea12512";
+      hash = "sha256-2x8vwLTSngqQqmVrVh/mM4peATgaRqOSwrfm5XCkg/g=";
+    };
 
-  sourceRoot = "${src.name}/src";
+    sourceRoot = "${self.src.name}/src";
 
-  meta = with lib; {
-    homepage = "http://michaelcmartin.github.io/Ophis/";
-    description = "Cross-assembler for the 6502 series of microprocessors";
-    mainProgram = "ophis";
-    longDescription = ''
-      Ophis is an assembler for the 6502 microprocessor - the famous chip used
-      in the vast majority of the classic 8-bit computers and consoles. Its
-      primary design goals are code readability and output flexibility - Ophis
-      has successfully been used to create programs for the Nintendo
-      Entertainment System, the Atari 2600, and the Commodore 64.
-    '';
-    license = licenses.mit;
-    maintainers = with maintainers; [ AndersonTorres ];
+    passthru = {
+      updateScript = unstableGitUpdater { };
+    };
+
+    meta = {
+      homepage = "http://michaelcmartin.github.io/Ophis/";
+      description = "Cross-assembler for the 6502 series of microprocessors";
+      longDescription = ''
+        Ophis is an assembler for the 6502 microprocessor - the famous chip used
+        in the vast majority of the classic 8-bit computers and consoles. Its
+        primary design goals are code readability and output flexibility - Ophis
+        has successfully been used to create programs for the Nintendo
+        Entertainment System, the Atari 2600, and the Commodore 64.
+      '';
+      license = lib.licenses.mit;
+      mainProgram = "ophis";
+      maintainers = with lib.maintainers; [ AndersonTorres ];
+    };
   };
-}
+in
+self

pkgs/top-level/all-packages.nix

···
 
   ophcrack-cli = ophcrack.override { enableGui = false; };
 
-  ophis = python3Packages.callPackage ../development/compilers/ophis { };
+  ophis = callPackage ../development/compilers/ophis { };
 
   open-interpreter = with python3Packages; toPythonApplication open-interpreter;