Merge pull request #283958 from cideM/init-inflow

{ lib, stdenv, fetchFromGitHub, runCommand, inflow, diffutils }:

stdenv.mkDerivation rec {

  pname = "inflow";

  version = "1.0.1";

  src = fetchFromGitHub {

    owner = "stephen-huan";

    repo = "inflow";

    rev = "v${version}";

    sha256 = "sha256-xKUqkrPwITai8g6U1NiNieAip/AzISgFfFtvR30hLNk=";

  };

  buildPhase = ''

    runHook preBuild

    $CXX -Wall -Wpedantic -Wextra -O3 -o inflow inflow.cpp

    runHook postBuild

  '';

  installPhase = ''

    runHook preInstall

    install -Dm755 inflow -t $out/bin

    runHook postInstall

  '';

  passthru.tests = {

    reflowWithLineLength = runCommand "${pname}-test"

      {

        nativeBuildInputs = [ inflow ];

        buildInputs = [ diffutils ];

      } ''

      cat <<EOF > input.txt

      xxxxx xxx xxx xxxx xxxxxxxxx xx x xxxxxxxxx x xxxx xxxx xxxxxxx xxxxxxxx xxx

      xxxxxxxxx xxxxxxxx xx xx xxxxx xxxxx xxxx xx x xxxx xx xxxxxxxx xxxxxxxx xxxx

      xxx xxxx xxxx xxx xxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxx xxx xxxxx xx xxxx x xxxx

      xxxxxxxx xxxx xxxx xx xxxxx xxxx xxxxx xxxx xxxxxxxxx xxx xxxxxxxxxxx xxxxxx

      xxx xxxxxxxxx xxxx xxxx xx x xx xxxx xxx xxxx xx xxx xxx xxxxxxxxxxx xxxx xxxxx

      x xxxxx xxxxxxx xxxxxxx xx xx xxxxxx xx xxxxx

      EOF

      inflow 72 < input.txt > actual.txt

      cat <<EOF > expected.txt

      xxxxx xxx xxx xxxx xxxxxxxxx xx x xxxxxxxxx x xxxx xxxx xxxxxxx

      xxxxxxxx xxx xxxxxxxxx xxxxxxxx xx xx xxxxx xxxxx xxxx xx x xxxx

      xx xxxxxxxx xxxxxxxx xxxx xxx xxxx xxxx xxx xxxxxxxxxxxxxxxxxxx

      xxxxxxxxxxxxx xxx xxxxx xx xxxx x xxxx xxxxxxxx xxxx xxxx xx xxxxx

      xxxx xxxxx xxxx xxxxxxxxx xxx xxxxxxxxxxx xxxxxx xxx xxxxxxxxx

      xxxx xxxx xx x xx xxxx xxx xxxx xx xxx xxx xxxxxxxxxxx xxxx xxxxx

      x xxxxx xxxxxxx xxxxxxx xx xx xxxxxx xx xxxxx

      EOF

      if ! cmp --silent expected.txt actual.txt

      then

        echo "Error: actual.txt and expected.txt are different"

        diff actual.txt expected.txt

        exit 1

      fi

      touch $out

    '';

  };

  meta = with lib; {

    description = "Variance-optimal paragraph formatter";

    homepage = "https://github.com/stephen-huan/inflow";

    license = licenses.unlicense;

    mainProgram = "inflow";

    maintainers = with maintainers; [ fbrs ];

    platforms = platforms.all;

  };

}