name: Main

on: push

jobs:
  codestyle:
    runs-on: ubuntu-latest
    steps:
      - name: Set up Rust
        uses: hecrj/setup-rust-action@v1
        with:
          components: rustfmt
          rust-version: nightly
      - uses: actions/checkout@v1
      - run: cargo fmt --all -- --check

  lint:
    runs-on: ubuntu-latest
    steps:
      - name: Set up Rust
        uses: hecrj/setup-rust-action@v1
        with:
          components: clippy
      - uses: actions/checkout@v1
      - run: cargo clippy --all-targets -- -D clippy::all

  compile:
    runs-on: ubuntu-latest
    steps:
      - name: Set up Rust
        uses: hecrj/setup-rust-action@v1
      - uses: actions/checkout@master
      - run: cargo check --all

  test:
    needs: [codestyle, lint, compile]
    strategy:
      matrix:
        rust: [stable, beta, nightly]
    runs-on: ubuntu-latest

    steps:
    - name: Setup Rust
      uses: hecrj/setup-rust-action@v1
      with:
        rust-version: ${{ matrix.rust }}
    - name: Checkout
      uses: actions/checkout@v1
    - name: Test
      run: cargo test
    - name: Coverage
      if: matrix.rust == 'stable'
      run: |
        # tarpaulin knows how to extract data from ci
        # ci services and GitHub actions is not one of them
        # work around that by masquerading as travis
        # https://github.com/xd009642/coveralls-api/blob/6da4ccd7c6eaf1df04cfd1e560362de70fa80605/src/lib.rs#L247-L262
        export TRAVIS_JOB_ID=${GITHUB_SHA}
        export TRAVIS_PULL_REQUEST=false
        export TRAVIS_BRANCH=${GITHUB_REF##*/}
        cargo install cargo-tarpaulin
        cargo tarpaulin --ciserver travis-ci --coveralls $TRAVIS_JOB_ID

  publish-docs:
    if: github.ref == 'refs/heads/master'
    runs-on: ubuntu-latest
    needs: [test]
    steps:
      - name: Set up Rust
        uses: hecrj/setup-rust-action@v1
      - uses: actions/checkout@v1
      - name: Generate Docs
        shell: bash
        run: |
          cargo doc --no-deps
          echo "<meta http-equiv=refresh content=0;url=`echo ${{ github.repository }} | cut -d / -f 2 | tr '-' '_'`/index.html>" > target/doc/index.html
      - name: Publish
        uses: docker://peaceiris/gh-pages:v2.3.1
        env:
          PUBLISH_BRANCH: gh-pages
          PUBLISH_DIR: ./target/doc
          PERSONAL_TOKEN: ${{ secrets.GH_PAGES_TOKEN }}
        with:
          emptyCommits: true

  publish-crate:
    if: startsWith(github.ref, 'refs/tags/')
    runs-on: ubuntu-latest
    needs: [test]
    steps:
      - name: Set up Rust
        uses: hecrj/setup-rust-action@v1
      - uses: actions/checkout@v1
      - name: Publish
        shell: bash
        run: cargo publish --token ${{ secrets.CRATES_TOKEN }}