Dirty nix derivation for vlang

vlang.nix

{ pkgs, lib, stdenv, fetchFromGitHub, glfw, freetype, openssl, makeWrapper, upx, git, strace, binutils-unwrapped, libGL, boehmgc, sqlite, libexecinfo, xorg, valgrind }:

stdenv.mkDerivation rec {
  pname = "vlangg";
  version = "weekly.2021.44";

  src = fetchFromGitHub {
    owner = "vlang";
    repo = "v";
    rev = version;
    sha256 = "0rb69sv1mrwz2115mzp3mlb83bmm4r6l6nlfkm00k67gv8a7cb46";
  };

  # V compiler source translated to C for bootstrap.
  vc = fetchFromGitHub {
    owner = "vlang";
    repo = "vc";
    rev = "5e563c318bdf38225de4d0b4683fc13c6cf6a885";
    sha256 = "0x96wsgsw4q4hkfklagqccl4jqxw3gbnjd5gif1pj50apclc705l";
  };

  # https://github.com/vlang/markdown
  markdown = fetchFromGitHub {
    owner = "vlang";
    repo = "markdown";
    rev = "1cda5d4a1538cac51504651cb5a4e02406807452";
    sha256 = "0g3r3z2q4ncg3lyi2wl7h8l025zr21j5jw72hq1v94645n6vx5i3";
  };

  nativeBuildInputs = [
    makeWrapper
    git
    strace
    libGL
    openssl
    boehmgc
    sqlite
    libexecinfo
    xorg.libX11.dev
    xorg.libX11
    xorg.xinput
    xorg.libXi
    xorg.libXext
    xorg.libXcursor
    valgrind
    pkgs.tmux
  ];

  propagatedBuildInputs = [
    glfw
    freetype
    openssl
  ] ++ lib.optional stdenv.hostPlatform.isUnix upx;

  postPatch = ''
    substituteInPlace Makefile \
      --replace "rm -rf" "true" \
      --replace "git" "echo"
    substituteInPlace vlib/v/util/util.v \
      --replace "https://github.com/vlang" "gits" \
      --replace "git clone" "cp -r --no-preserve=mode"
  '';

  preBuild = ''
    export HOME=$PWD
    mkdir gits
    cp -r --no-preserve=mode $markdown gits/markdown
    cp -r --no-preserve=mode $vc vc
    export VERBOSE=1
    export VCREPO=vc
    export TCCREPO=
    export local=true
    export VFLAGS=-g
    makeFlagsArray+=(CFLAGS="-O0")
  '';

  postBuild = ''
    # Exclude thirdparty/vschannel as it is windows-specific.
    #filelist=$(find cmd -type f -name '*.v' | sed 's|cmd/v/help/help.v||; s|cmd/tools/vdoc/markdown.v||; s|cmd/tools/vdoc/vdoc.v||')
    rm -rf thirdparty/vschannel thirdparty/picoev
    find thirdparty -type f -name "*.c" -execdir cc -std=gnu11 $CFLAGS -w -c {} $LDFLAGS ';'

    tmux new-session -d -s task-session -x 80 -y 60
    tmux send-keys './v build-tools -v' ENTER
    tmux send-keys 'tmux wait -S ping' ENTER
    tmux send-keys 'exit' ENTER
    tmux wait ping
  '';

  libPath = lib.makeLibraryPath (with pkgs; [
    libGL
    openssl
    boehmgc
    sqlite
    libexecinfo
    xorg.libX11.dev
    xorg.libX11
    xorg.xinput
    xorg.libXi
    xorg.libXext
    xorg.libXcursor
    bintools-unwrapped
    valgrind
  ]);

  installPhase = ''
    runHook preInstall
    mkdir -p $out/{bin,lib,share}
    cp -r examples $out/share
    cp -r {cmd,vlib,thirdparty} $out/lib
    mv v $out/lib
    echo 'making wrapper'
    ln -s $out/lib/v $out/bin/v
    wrapProgram $out/bin/v --prefix PATH : ${lib.makeBinPath [ stdenv.cc binutils-unwrapped ]} --prefix LD_LIBRARY_PATH : ${libPath}
    runHook postInstall
  '';

  meta = with lib; {
    homepage = "https://vlang.io/";
    description = "Simple, fast, safe, compiled language for developing maintainable software";
    license = licenses.mit;
    maintainers = with maintainers; [ chiiruno ];
    platforms = platforms.all;
  };
}