enlightenment and nixos

default.nix

{ callPackage, pkgs }:
rec {
  #### CORE EFL
  efl = callPackage ./efl.nix { openjpeg = pkgs.openjpeg_1; };
  evas_generic_loaders = callPackage ./evas_generic_loaders.nix { };
  emotion = callPackage ./emotion.nix { };
  elementary = callPackage ./elementary.nix { };

  #### WINDOW MANAGER
  enlightenment = callPackage ./enlightenment.nix { };

  #### APPLICATIONS
  econnman = callPackage ./econnman.nix { };
  terminology = callPackage ./terminology.nix { };
  rage = callPackage ./rage.nix { };

  with_efl = package: callPackage ./with2.nix {
    inherit package;
    withPackage = with_evas efl;
    originalWithPackage = efl;
  };
  with_evas = package: callPackage ./with2.nix {
    inherit package;
    withPackage = evas_generic_loaders;
    originalWithPackage = evas_generic_loaders;
  };
  terminology_evas = with_efl terminology;
}

main.sh

`nix-build '<nixpkgs>' -A pkgs.enlightenment.terminology_evas`/bin/terminology -e "tyls -m ~/Pictures && zsh"

with1.nix

{ runCommand, makeWrapper, package, withPackage, extra }:
let
  name = "${package.name}-with-${withPackage.name}";
in
runCommand "${name}" { nativeBuildInputs = [ makeWrapper ]; } ''
  for executable in ${package}/bin/*
  do
    makeWrapper $executable $out/bin/`basename $executable` \
      --prefix LD_LIBRARY_PATH : ${withPackage}/lib
  done
  for executable in ${toString extra}
  do
    makeWrapper ${package}/$executable $out/$executable \
      --prefix LD_LIBRARY_PATH : ${withPackage}/lib
  done
  for file in `find ${package}`
  do
    new_path=$out''${file#${package}}
    test -d $file && mkdir -p $new_path || ln -s $file $new_path || true
  done
''

with2.nix

{ runCommand, makeWrapper, package, withPackage, originalWithPackage }:
let
  name = "${package.name}-with-${withPackage.name}";
in
runCommand "${name}" { nativeBuildInputs = [ makeWrapper ]; } ''
  find ${package} -exec sh -c '
    file="$1"
    new_path=$out''${file#${package}}
    test -d $file && mkdir -p $new_path && exit 1

    case "$(head -n 1 "$file")" in
      ?ELF*)
        cp $file $new_path && chmod ugo+w "$new_path"
        old_rpath=`patchelf --print-rpath "$new_path"`
        new_rpath=''${old_rpath//"${originalWithPackage}"/"${withPackage}"}
        patchelf --remove-rpath "$new_path"
        patchelf --set-rpath "$new_rpath" "$new_path"
        echo $new_rpath
        echo $new_path
        exit 0
        ;;
    esac

    cp $file $new_path
    sed -ie "s|${originalWithPackage}|${withPackage}|g" $new_path

    exit 1
  ' sh "{}" \;
''

with3.nix

{ runCommand, makeWrapper, package, withPackage }:
let
  name = "${package.name}-with-${withPackage.name}";
in
runCommand "${name}" { nativeBuildInputs = [ makeWrapper ]; } ''
  find ${withPackage} -exec sh -c '
    file="$1"
    new_path=$out''${file#${withPackage}}
    test -d $file && mkdir -p $new_path && exit 1

    cp $file $new_path
    exit 0
  ' sh "{}" \;

  find ${package} -exec sh -c '
    file="$1"
    new_path=$out''${file#${package}}
    test -d $file && mkdir -p $new_path && exit 1

    cp -f $file $new_path
    exit 0
  ' sh "{}" \;
''