version: 2.1

# Adding these commands but need confirmation of cache location
commands:
  cache_restore:
    description: Restore Cargo Cache
    steps:
      - restore_cache:
          name: Restoring Cargo Cache
          keys:
            - cargo-cache-{{ arch }}-{{ .Branch }}-{{ checksum "Cargo.lock" }}
            - cargo-cache-{{ arch }}-{{ .Branch }}
            - cargo-cache
  cache_save:
    description: Save Cargo Cache
    steps:
      - save_cache:
          name: Save Cargo Cache
          paths:
            - /usr/local/cargo/registry
          key: cargo-cache-{{ arch }}-{{ .Branch }}-{{ checksum "Cargo.lock" }}

  rust_nightly:
    description: Install nightly tools
    steps:
      - run:
          name: Install rust nightly-2020-04-22
          command: rustup toolchain install nightly-2020-04-22
      - run:
          name: Install rustfmt and clippy for nightly-2020-04-22
          command: rustup component add rustfmt clippy --toolchain nightly-2020-04-22

jobs:
  fmt:
    docker:
      - image: quay.io/influxdb/rust:ci
    steps:
      - checkout
      - rust_nightly
      - run:
          name: Rust fmt
          command: cargo fmt --all -- --check
  lint:
    docker:
      - image: quay.io/influxdb/rust:ci
    steps:
      - checkout
      - rust_nightly
      - run:
          name: Clippy
          command: cargo clippy --all-targets --workspace -- -D warnings
  test:
    docker:
      - image: quay.io/influxdb/rust:ci
    steps:
      - checkout
      - cache_restore
      - rust_nightly
      - run:
          name: Cargo test
          command: cargo test --workspace
      - cache_save
  build:
    docker:
      - image: quay.io/influxdb/rust:ci
    steps:
      - checkout
      - cache_restore
      - rust_nightly
      - run:
          name: Cargo build
          command: cargo build --workspace
      - cache_save
  ci_image:
    machine: true
    steps:
      - checkout
      - run: |
          echo "$QUAY_PASS" | docker login quay.io --username $QUAY_USER --password-stdin
      - run: |
          COMMIT_SHA=$(git rev-parse --short HEAD)
          docker build -t quay.io/influxdb/rust:$COMMIT_SHA -f Dockerfile.ci .
          docker tag quay.io/influxdb/rust:$COMMIT_SHA quay.io/influxdb/rust:ci
          docker push quay.io/influxdb/rust:$COMMIT_SHA
          docker push quay.io/influxdb/rust:ci

workflows:
  version: 2
  build:
    jobs:
      - fmt
      - lint
      - test
      - build
  ci_image:
    triggers:
      - schedule:
          cron: "0 5 * * *"
          filters:
            branches:
              only:
                - master
    jobs:
      - ci_image