# Modified from https://github.com/matthewbauer/nix-bundle/blob/e9fa7e8a118942adafa8592a28b301ee23d37c13/appimagetool.nix
{ stdenv, lib, fetchurl, fuse, zlib, file, glib, }:

# This is from some binaries.

# Ideally, this should be source based,
# but I can't get it to build from GitHub

let

  inherit (stdenv.cc.bintools) dynamicLinker;

  version = "745";

  cpuArch = stdenv.buildPlatform.parsed.cpu.arch;

  src = {

    "x86-64" = fetchurl {
      url = "https://github.com/probonopd/go-appimage/releases/download/continuous/appimagetool-${version}-x86_64.AppImage";
      sha256 = "sha256-HQ7d9LQDaPm6sGZ5boWZdmGTNqiGN9NWHUWPiDhl2Xc=";
    };

    # TODO other archs

  }."${cpuArch}";

in stdenv.mkDerivation rec {
  inherit version src;

  pname = "go-appimage";

  sourceRoot = "squashfs-root";

  unpackPhase = ''
    cp $src appimagetool
    chmod u+wx appimagetool
    #patchelf --set-interpreter ${dynamicLinker} \
    #         --set-rpath ${fuse}/lib:${zlib}/lib \
    #         appimagetool
    ./appimagetool --appimage-extract
  '';

  installPhase = ''
    mkdir -p $out

    cp -r usr/* $out
    for x in $out/bin/*; do
      patchelf \
        --set-interpreter ${dynamicLinker} \
        --set-rpath ${lib.makeLibraryPath [ zlib stdenv.glibc.out fuse glib ]} \
        $x || true
    done
  '';

  dontStrip = true;
  dontPatchELF = true;
}