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{ buildDotnetModule
, dotnetCorePackages
, fetchFromGitHub
, lib
, stdenv
, runCommand
, expect
}:
let
  inherit (dotnetCorePackages) sdk_6_0 runtime_6_0;
in
let finalPackage = buildDotnetModule rec {
  pname = "omnisharp-roslyn";
  version = "1.39.10";

  src = fetchFromGitHub {
    owner = "OmniSharp";
    repo = pname;
    rev = "v${version}";
    hash = "sha256-3RjRFc+keNLazUS5nLG1ZE7SfVCWoQDti2CCnnSPPQ0=";
  };

  projectFile = "src/OmniSharp.Stdio.Driver/OmniSharp.Stdio.Driver.csproj";
  nugetDeps = ./deps.nix;

  dotnet-sdk = sdk_6_0;
  dotnet-runtime = sdk_6_0;

  dotnetInstallFlags = [ "--framework net6.0" ];
  dotnetBuildFlags = [ "--framework net6.0" "--no-self-contained" ];
  dotnetFlags = [
    # These flags are set by the cake build.
    "-property:PackageVersion=${version}"
    "-property:AssemblyVersion=${version}.0"
    "-property:FileVersion=${version}.0"
    "-property:InformationalVersion=${version}"
    "-property:RuntimeFrameworkVersion=${runtime_6_0.version}"
    "-property:RollForward=LatestMajor"
  ];

  postPatch = ''
    # Relax the version requirement
    rm global.json

    # Patch the project files so we can compile them properly
    for project in src/OmniSharp.Http.Driver/OmniSharp.Http.Driver.csproj src/OmniSharp.LanguageServerProtocol/OmniSharp.LanguageServerProtocol.csproj src/OmniSharp.Stdio.Driver/OmniSharp.Stdio.Driver.csproj; do
      substituteInPlace $project \
        --replace '<RuntimeIdentifiers>win7-x64;win7-x86;win10-arm64</RuntimeIdentifiers>' '<RuntimeIdentifiers>linux-x64;linux-arm64;osx-x64;osx-arm64</RuntimeIdentifiers>'
    done
  '';

  useDotnetFromEnv = true;
  executables = [ "OmniSharp" ];

  passthru.tests = let
    with-sdk = sdk: runCommand "with-${if sdk ? version then sdk.version else "no"}-sdk"
      { nativeBuildInputs = [ finalPackage sdk expect ]; meta.timeout = 60; } ''
      HOME=$TMPDIR
      expect <<"EOF"
        spawn OmniSharp
        expect_before timeout {
          send_error "timeout!\n"
          exit 1
        }
        expect ".NET Core SDK ${if sdk ? version then sdk.version else sdk_6_0.version}"
        expect "{\"Event\":\"started\","
        send \x03
        expect eof
        catch wait result
        exit [lindex $result 3]
      EOF
      touch $out
    '';
  in {
    # Make sure we can run OmniSharp with any supported SDK version, as well as without
    with-net6-sdk = with-sdk sdk_6_0;
    with-net7-sdk = with-sdk dotnetCorePackages.sdk_7_0;
    no-sdk = with-sdk null;
  };

  meta = with lib; {
    description = "OmniSharp based on roslyn workspaces";
    homepage = "https://github.com/OmniSharp/omnisharp-roslyn";
    sourceProvenance = with sourceTypes; [
      fromSource
      binaryNativeCode # dependencies
    ];
    license = licenses.mit;
    maintainers = with maintainers; [ tesq0 ericdallo corngood mdarocha ];
    mainProgram = "OmniSharp";
  };
}; in finalPackage