Improve dafny packaging (#300009)

{ lib

, buildDotnetModule

, fetchFromGitHub

, writeScript

, jdk11

, z3

, dotnetCorePackages

{

  lib,

  buildDotnetModule,

  fetchFromGitHub,

  runCommand,

  dafny,

  writeScript,

  jdk11,

  z3,

  dotnetCorePackages,

}:

let

  examples = fetchFromGitHub {

    owner = "gaberch";

    repo = "Various-Algorithms-Verified-With-Dafny";

    rev = "50e451bbcd15e52e27d5bbbf66b0b4c4abbff41c";

    hash = "sha256-Ng5wve/4gQr/2hsFWUFFcTL3K2xH7dP9w8IrmvWMKyg=";

  };

  tests = {

    verify = runCommand "dafny-test" { } ''

      mkdir $out

      cp ${examples}/SlowMax.dfy $out

      ${dafny}/bin/dafny verify --allow-warnings $out/SlowMax.dfy

    '';

    # Broken, cannot compile generated .cs files for now

    #run = runCommand "dafny-test" { } ''

    #    mkdir $out

    #    cp ${examples}/SlowMax.dfy $out

    #    ${dafny}/bin/dafny run --allow-warnings $out/SlowMax.dfy

    #  '';

    # TODO: Ensure then tests that dafny can generate to and compile other

    # languages (Java, Cpp, etc.)

  };

in

buildDotnetModule rec {

  pname = "Dafny";

  version = "4.8.0";

      runtimeJarVersion = "4.6.0";

    in

    ''

      cp ${

        writeScript "fake-gradlew-for-dafny" ''

      cp ${writeScript "fake-gradlew-for-dafny" ''

        mkdir -p build/libs/

        javac $(find -name "*.java" | grep "^./src/main") -d classes

        jar cf build/libs/DafnyRuntime-${runtimeJarVersion}.jar -C classes dafny

    ln -s "$out/bin/Dafny" "$out/bin/dafny" || true

  '';

  passthru.tests = tests;

  meta = with lib; {

    description = "Programming language with built-in specification constructs";

    homepage = "https://research.microsoft.com/dafny";