FROM monacoremo/nix:2020-01-31-62bbc2ab
RUN nix-channel --add https://nixos.org/channels/nixpkgs-unstable nixpkgs \
 && nix-channel --update
ENV USER root
RUN nix-env -i gnutar gzip \
 && nix-env -iA cachix -f https://cachix.org/api/v1/install \
 && cachix use xe \
 && nix-env -e cachix \
 && nix-collect-garbage

WORKDIR /xe/pkgs
COPY . .
RUN nix-build default.nix && nix-collect-garbage