image: 'rust:latest'

stages:
  - check
  - lint
  - test


variables:
  CARGO_HOME: $CI_PROJECT_DIR/cargo_cache
  DEBIAN_BINARY: "debian-x86_64-${CI_COMMIT_TAG}.tar.bz2"
  PACKAGE_REGISTRY_URL: "${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/packages/generic/gitlab-clippy/${CI_COMMIT_TAG}"

.common:
  interruptible: true
  cache:
    key:
      files:
        - Cargo.lock
    paths:
      # https://doc.rust-lang.org/cargo/guide/cargo-home.html#caching-the-cargo-home-in-ci
      - cargo_cache/bin
      - cargo_cache/registry/index
      - cargo_cache/registry/cache
      - cargo_cache/git/db
    policy: pull

.recreate_cache:
  cache:
    policy: pull-push

check:
  stage: check
  needs: []
  extends:
    - .common
    - .recreate_cache
  script:
    - cargo check --workspace

fmt:
  stage: lint
  extends: .common
  needs:
    - job: check
      artifacts: false
  before_script:
    - rustup component add rustfmt
  script:
    - cargo fmt --all -- --check

clippy-cli:
  stage: lint
  before_script:
    - rustup component add clippy
    - cargo install --path .
  script:
    - cargo clippy
  after_script:
    - cargo clippy --message-format=json | $CARGO_HOME/bin/gitlab-clippy > gl-code-quality-report.json
  artifacts:
    reports:
      codequality: gl-code-quality-report.json
    expire_in: 1 week
  rules:
    - if: '$CODE_QUALITY_DISABLED'
      when: never
    - if: '$CI_PIPELINE_SOURCE == "push"'

clippy-be:
  stage: lint
  extends: .common
  needs:
    - job: check
      artifacts: false
  before_script:
    - rustup component add clippy
  script:
    - cargo clippy
  after_script:
    - cargo clippy --message-format=json &> clippy.txt || true
    - curl -X POST "https://gitlab-cq-rust.herokuapp.com/clippy" --data-binary @clippy.txt --output report.json
  artifacts:
    reports:
      codequality: report.json
    expire_in: 1 week
  rules:
    - if: '$CODE_QUALITY_DISABLED'
      when: never
    - if: '$CI_PIPELINE_SOURCE == "push"'

test:
  stage: test
  extends: .common
  needs:
    - job: check
      artifacts: false
  before_script:
    - rustup component add clippy
  script:
    - cargo test --all

coverage:
  image: "rustdocker/rust:nightly"
  stage: extras
  variables:
    RUSTFLAGS: "-Zinstrument-coverage"
    LLVM_PROFILE_FILE: "coverage-%p-%m.profraw"
  script:
    - rustup component add llvm-tools-preview
    - cargo test
    # generate html report
    - cargo install grcov
    - grcov . --binary-path ./target/debug/ -s . -t html --branch --ignore-not-existing --ignore "*cargo*" -o ./coverage/
    # generate cobertura report for gitlab integration
    - pip3 install lcov_cobertura
    - grcov . --binary-path ./target/debug/ -s . -t lcov --branch --ignore-not-existing --ignore "*cargo*" -o coverage.lcov
    - python3 /usr/local/lib/python3.5/dist-packages/lcov_cobertura.py coverage.lcov
  artifacts:
    reports:
      coverage_report:
        coverage_format: cobertura
        path: cobertura.xml
  coverage: '/^\d+.\d+% coverage/'