stages:
  - ci
  - artifacts
  - deploy

variables:
  # Makes some things print in color
  TERM: ansi

before_script:
  # Enable nix-command and flakes
  - if command -v nix > /dev/null; then echo "experimental-features = nix-command flakes" >> /etc/nix/nix.conf; fi

  # Disable IFD, to ensure we are able to build without it
  - if command -v nix > /dev/null; then echo "allow-import-from-derivation = false" >> /etc/nix/nix.conf; fi

  # Add our own binary cache
  - if command -v nix > /dev/null && [ -n "$ATTIC_ENDPOINT" ] && [ -n "$ATTIC_CACHE" ]; then echo "extra-substituters = $ATTIC_ENDPOINT/$ATTIC_CACHE" >> /etc/nix/nix.conf; fi
  - if command -v nix > /dev/null && [ -n "$ATTIC_PUBLIC_KEY" ]; then echo "extra-trusted-public-keys = $ATTIC_PUBLIC_KEY" >> /etc/nix/nix.conf; fi

  # Add crane binary cache
  - if command -v nix > /dev/null; then echo "extra-substituters = https://crane.cachix.org" >> /etc/nix/nix.conf; fi
  - if command -v nix > /dev/null; then echo "extra-trusted-public-keys = crane.cachix.org-1:8Scfpmn9w+hGdXH/Q9tTLiYAE/2dnJYRJP7kl80GuRk=" >> /etc/nix/nix.conf; fi

  # Add nix-community binary cache
  - if command -v nix > /dev/null; then echo "extra-substituters = https://nix-community.cachix.org" >> /etc/nix/nix.conf; fi
  - if command -v nix > /dev/null; then echo "extra-trusted-public-keys = nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs=" >> /etc/nix/nix.conf; fi

  # Install direnv and nix-direnv
  - if command -v nix > /dev/null; then nix profile install --impure --inputs-from . nixpkgs#direnv nixpkgs#nix-direnv; fi

  # Allow .envrc
  - if command -v nix > /dev/null; then direnv allow; fi

  # Set CARGO_HOME to a cacheable path
  - export CARGO_HOME="$(git rev-parse --show-toplevel)/.gitlab-ci.d/cargo"

ci:
  stage: ci
  image: nixos/nix:2.18.2
  script:
    - ./bin/nix-build-and-cache ci

    - direnv exec . engage
  cache:
    paths:
      - target
      - .gitlab-ci.d

artifacts:
  stage: artifacts
  image: nixos/nix:2.18.2
  script:
    - ./bin/nix-build-and-cache packages

pages:
  stage: deploy
  image: nixos/nix:2.18.2
  script:
    - direnv exec . mdbook build
  artifacts:
    paths:
      - public
  only:
    - main