name: CI tests
on: [push, pull_request]

env:
  SCCACHE_GHA_ENABLED: "true"
  RUSTC_WRAPPER: "sccache"

jobs:
  build:
    name: Build project
    runs-on: ubuntu-latest
    outputs:
      rustc_cache_key: ${{ steps.setup_rust.outputs.cachekey }}
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
        id: setup_rust
        with:
          components: "rustfmt, clippy"
      - uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: "cargo-base-${{ steps.setup_rust.outputs.cachekey }}-${{ hashFiles('**/Cargo.lock') }}"
          restore-keys: |
            cargo-base-${{ env.RUSTC_CACHEKEY }}
      - name: Run sccache-cache
        uses: mozilla-actions/sccache-action@v0.0.3
      - run: cargo build --locked --all-targets

  lint:
    name: Run lints
    runs-on: ubuntu-latest
    needs: build
    steps:
      - uses: actions/checkout@v4
      - uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: "cargo-lint-${{ needs.build.outputs.rustc_cache_key }}-${{ hashFiles('**/Cargo.lock') }}"
          restore-keys: |
            cargo-lint-${{ env.RUSTC_CACHEKEY }}
            cargo-base-${{ env.RUSTC_CACHEKEY }}
          fail-on-cache-miss: true
      - name: Run sccache-cache
        uses: mozilla-actions/sccache-action@v0.0.3

      - run: cargo fmt --all -- --check
      - run: cargo check
      - run: cargo clippy -- -D warnings


  pre-commit:
    name: Run pre-commit
    runs-on: ubuntu-latest
    needs: build
    env:
      # These hooks are expensive and already run as dedicated jobs above
      SKIP: "tests,clippy"
    steps:
      - uses: actions/checkout@v4
      - uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: "cargo-lint-${{ needs.build.outputs.rustc_cache_key }}-${{ hashFiles('**/Cargo.lock') }}"
          restore-keys: |
            cargo-lint-${{ env.RUSTC_CACHEKEY }}
            cargo-base-${{ env.RUSTC_CACHEKEY }}
          fail-on-cache-miss: true
      - name: Run sccache-cache
        uses: mozilla-actions/sccache-action@v0.0.3

      - uses: actions/setup-python@v3
      - name: set PYVERSION
        run: echo "PYVERSION=$(python --version | tr ' ' '-')" >> $GITHUB_ENV
      - uses: actions/cache@v3
        with:
          path: ~/.cache/pre-commit
          # Changes to pre-commit-config.yaml may require the installation of
          # new binaries/scripts. When a cache hit occurs, changes to the cache
          # aren't persisted at the end of the run, so making the key dependent
          # on the configuration file ensures we always persist a complete cache.
          key: pre-commit-${{ env.PYVERSION }}-${{ hashFiles('.pre-commit-config.yaml') }}

      - run: pip install pre-commit
      - run: pre-commit run --all --color=always --show-diff-on-failure

  test-linux:
    name: Test on Linux
    runs-on: ubuntu-latest
    needs: build
    steps:
      - uses: actions/checkout@v4
      - uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: "cargo-test-${{ needs.build.outputs.rustc_cache_key }}-${{ hashFiles('**/Cargo.lock') }}"
          restore-keys: |
            cargo-test-${{ env.RUSTC_CACHEKEY }}
            cargo-base-${{ env.RUSTC_CACHEKEY }}
          fail-on-cache-miss: true
      - name: Run sccache-cache
        uses: mozilla-actions/sccache-action@v0.0.3

      - run: cargo test

  test-windows:
    name: Test on Windows
    runs-on: windows-latest
    needs: build
    steps:
      - run: git config --system core.autocrlf false && git config --system core.eol lf
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
        id: setup_rust
      - uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: "cargo-windows-${{ needs.build.outputs.rustc_cache_key }}-${{ hashFiles('**/Cargo.lock') }}"
          restore-keys: |
            cargo-windows-${{ env.RUSTC_CACHEKEY }}
            cargo-base-${{ env.RUSTC_CACHEKEY }}
          fail-on-cache-miss: true
      - name: Run sccache-cache
        uses: mozilla-actions/sccache-action@v0.0.3

      - run: cargo test

  coverage:
    name: Code coverage
    runs-on: ubuntu-latest
    needs: build
    steps:
      - uses: actions/checkout@v4
      - uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: "cargo-coverage-${{ needs.build.outputs.rustc_cache_key }}-${{ hashFiles('**/Cargo.lock') }}"
          restore-keys: |
            cargo-coverage-${{ env.RUSTC_CACHEKEY }}
            cargo-base-${{ env.RUSTC_CACHEKEY }}
          fail-on-cache-miss: true
      - name: Run sccache-cache
        uses: mozilla-actions/sccache-action@v0.0.3

      - uses: actions-rs/tarpaulin@v0.1
        with:
          # Constrained by https://github.com/actions-rs/tarpaulin/pull/23
          version: "0.22.0"
          args: "--ignore-tests"
          out-type: "Html"
      - uses: actions/upload-artifact@v3
        with:
          name: tarpaulin-report
          path: tarpaulin-report.html