flake.nix

{
  description = "Optim Clean Code";
  inputs.nixpkgs.url = "github:nixos/nixpkgs";
  inputs.flake-utils.url = "github:numtide/flake-utils";
  inputs.aiken.url = "github:aiken-lang/aiken";
  outputs = { self, nixpkgs, flake-utils, aiken }:
    let
      systems = [ "x86_64-linux" "x86_64-darwin" ];
      perSystem = nixpkgs.lib.genAttrs systems;
      # not working...
      withGitRev = package: package.overrideAttrs(_: { gitRev = self.rev or "dirty git tree"; });
    in
      flake-utils.lib.eachSystem systems (system:
        let
          pkgs = import nixpkgs { inherit system; };
        in
          {
            devShells.default = pkgs.mkShell {
              shellHook = ''
                function find_flake_root {
                  [ $(dirname $1) = $1 ] && exit 1
                  stat $1/flake.nix &>/dev/null && echo $1 && return
                  find_flake_root $(dirname $1)
                }
                FLAKE_ROOT=$(find_flake_root $(realpath ./))
                [ -z "$FLAKE_ROOT" ] && echo "Couldn't find flake root" && exit 1

                mkdir -p $FLAKE_ROOT/oada/build/packages/

                cat > $FLAKE_ROOT/oada/build/packages/packages.toml <<EOF
                [[packages]]
                name = "optimfinance/aiken-common"
                version = "0.1.0"
                source = "github"
                EOF

                ln -nfs $FLAKE_ROOT/aiken-common $FLAKE_ROOT/oada/build/packages/optimfinance-aiken-common
              '';
              buildInputs = with pkgs; [
                aiken.packages.${system}.aiken
                deno
                nodejs
              ];
            };
          }
      );
}