# Run with: nix-shell flarum-update.nix

{ pkgs ? import <nixpkgs> {}
}:

with pkgs;
let
  composer2nix = import (fetchFromGitHub {
    owner = "svanderburg";
    repo = "composer2nix";
    rev = "v0.0.4";
    sha256 = "0q0x3in43ss1p0drhc5lp5bnp2jqni1i7zxm7lmjl5aad9nkn3gf";
  }) { inherit pkgs; };
in
stdenv.mkDerivation {
  name = "flarum-update";
  buildInputs = [ phpPackages.composer composer2nix ];
  shellHook = ''
    OUT=$(pwd)/flarum

    cd $(mktemp -d)
    composer create-project flarum/flarum . --stability=beta
    composer require fof/upload

    composer2nix
    cp -v *.nix composer.{json,lock} $OUT/
    exit
  '';
}