stages:
  - ci
  - artifacts
  - publish

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

  # Add our own binary cache
  - if command -v nix > /dev/null; then echo "extra-substituters = https://nix.computer.surgery/conduit" >> /etc/nix/nix.conf; fi
  - if command -v nix > /dev/null; then echo "extra-trusted-public-keys = conduit:ZGAf6P6LhNvnoJJ3Me3PRg7tlLSrPxcQ2RiE5LIppjo=" >> /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-env -iA 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:2.19.2
  script:
    - direnv exec . engage
  cache:
    key: nix
    paths:
      - target
      - .gitlab-ci.d

static:x86_64-unknown-linux-musl:
  stage: artifacts
  image: nixos/nix:2.19.2
  script:
    # Push artifacts and build requirements to binary cache
    - ./bin/nix-build-and-cache .#static-x86_64-unknown-linux-musl

    # Make the output less difficult to find
    - cp result/bin/conduit conduit
  artifacts:
    paths:
      - conduit

static:aarch64-unknown-linux-musl:
  stage: artifacts
  image: nixos/nix:2.19.2
  script:
    # Push artifacts and build requirements to binary cache
    - ./bin/nix-build-and-cache .#static-aarch64-unknown-linux-musl

    # Make the output less difficult to find
    - cp result/bin/conduit conduit
  artifacts:
    paths:
      - conduit

# Note that although we have an `oci-image-x86_64-unknown-linux-musl` output,
# we don't build it because it would be largely redundant to this one since it's
# all containerized anyway.
oci-image:x86_64-unknown-linux-gnu:
  stage: artifacts
  image: nixos/nix:2.19.2
  script:
    # Push artifacts and build requirements to binary cache
    #
    # Since the OCI image package is based on the binary package, this has the
    # fun side effect of uploading the normal binary too. Conduit users who are
    # deploying with Nix can leverage this fact by adding our binary cache to
    # their systems.
    - ./bin/nix-build-and-cache .#oci-image

    # Make the output less difficult to find
    - cp result oci-image-amd64.tar.gz
  artifacts:
    paths:
      - oci-image-amd64.tar.gz

oci-image:aarch64-unknown-linux-musl:
  stage: artifacts
  needs:
    # Wait for the static binary job to finish before starting so we don't have
    # to build that twice for no reason
    - static:aarch64-unknown-linux-musl
  image: nixos/nix:2.19.2
  script:
    # Push artifacts and build requirements to binary cache
    - ./bin/nix-build-and-cache .#oci-image-aarch64-unknown-linux-musl

    # Make the output less difficult to find
    - cp result oci-image-arm64v8.tar.gz
  artifacts:
    paths:
      - oci-image-arm64v8.tar.gz

debian:x86_64-unknown-linux-gnu:
  stage: artifacts
  # See also `rust-toolchain.toml`
  image: rust:1.75.0
  script:
    - apt-get update && apt-get install -y --no-install-recommends libclang-dev
    - cargo install cargo-deb
    - cargo deb

    # Make the output less difficult to find
    - mv target/debian/*.deb conduit.deb
  artifacts:
    paths:
      - conduit.deb
  cache:
    key: debian
    paths:
      - target
      - .gitlab-ci.d

docker-publish:
  stage: publish
  image: docker:25.0.0
  services:
    - docker:25.0.0-dind
  variables:
    IMAGE_NAME: $CI_REGISTRY_IMAGE/matrix-conduit
    IMAGE_SUFFIX_AMD64: amd64
    IMAGE_SUFFIX_ARM64V8: arm64v8
  before_script:
    - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
  script:
    - docker load -i oci-image-amd64.tar.gz
    - IMAGE_ID_AMD64=$(docker images -q conduit:next)
    - docker load -i oci-image-arm64v8.tar.gz
    - IMAGE_ID_ARM64V8=$(docker images -q conduit:next)
    # Tag and push the architecture specific images
    - docker tag $IMAGE_ID_AMD64 $IMAGE_NAME:$CI_COMMIT_SHA-$IMAGE_SUFFIX_AMD64
    - docker tag $IMAGE_ID_ARM64V8 $IMAGE_NAME:$CI_COMMIT_SHA-$IMAGE_SUFFIX_ARM64V8
    - docker push $IMAGE_NAME:$CI_COMMIT_SHA-$IMAGE_SUFFIX_AMD64
    - docker push $IMAGE_NAME:$CI_COMMIT_SHA-$IMAGE_SUFFIX_ARM64V8
    # Tag the multi-arch image
    - docker manifest create $IMAGE_NAME:$CI_COMMIT_SHA --amend $IMAGE_NAME:$CI_COMMIT_SHA-$IMAGE_SUFFIX_AMD64 --amend $IMAGE_NAME:$CI_COMMIT_SHA-$IMAGE_SUFFIX_ARM64V8
    - docker manifest push $IMAGE_NAME:$CI_COMMIT_SHA
    # Tag and push the git ref
    - docker manifest create $IMAGE_NAME:$CI_COMMIT_REF_NAME --amend $IMAGE_NAME:$CI_COMMIT_SHA-$IMAGE_SUFFIX_AMD64 --amend $IMAGE_NAME:$CI_COMMIT_SHA-$IMAGE_SUFFIX_ARM64V8
    - docker manifest push $IMAGE_NAME:$CI_COMMIT_REF_NAME
    # Tag git tags as 'latest'
    - |
      if [[ -n "$CI_COMMIT_TAG" ]]; then
        docker manifest create $IMAGE_NAME:latest --amend $IMAGE_NAME:$CI_COMMIT_SHA-$IMAGE_SUFFIX_AMD64 --amend $IMAGE_NAME:$CI_COMMIT_SHA-$IMAGE_SUFFIX_ARM64V8
        docker manifest push $IMAGE_NAME:latest
      fi
  dependencies:
    - oci-image:x86_64-unknown-linux-gnu
    - oci-image:aarch64-unknown-linux-musl
  only:
    - next
    - master
    - tags