rust.yml

name: Rust

on:
  push:
    branches: [main, "*.x"]
  pull_request:
  release:
    types: [created]

env:
  RUST_BACKTRACE: "1"
  RUST_LOG: "info"
  # speed up build by using clang/lld
  CC: "clang-14"
  CXX: "clang++-14"
  LD: "clang-14"
  LDFLAGS: "-fuse-ld=lld-14"
  RUSTFLAGS: "-C linker=clang-14 -C link-arg=-fuse-ld=lld-14"

jobs:
  test:
    strategy:
      fail-fast: false
      matrix:
        rust:
          - toolchain: "stable"
          - toolchain: "nightly"
    name: "Test (Rust ${{matrix.rust.toolchain}})"
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: dtolnay/rust-toolchain@v1
        with:
          toolchain: "${{matrix.rust.toolchain}}"
        id: "rust-toolchain"
      
      - uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/git
            ~/.cargo/registry
            target
          key: "${{runner.os}} Rust ${{steps.rust-toolchain.outputs.cachekey}}"
      
      - run: cargo test
      - name: cargo run
        run: |
          cargo run -- --bin
          git diff --exit-code README.md
  
  rustfmt:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: dtolnay/rust-toolchain@nightly
        with:
          components: rustfmt
      - run: ./rustfmt.sh --check
  
  docker:
    runs-on: ubuntu-latest
    needs: [test]
    if: startsWith(github.ref, 'refs/tags/')
    steps:
      - uses: actions/checkout@v3
      - name: Log In at ghcr.io
        run: echo "${{secrets.GITHUB_TOKEN}}" | docker login ghcr.io -u msrd0 --password-stdin
      - name: Build and Push image to ghcr.io
        run: |
          image="ghcr.io/msrd0/cargo-doc2readme"
          tag="$image:$(git describe --tags)"
          
          echo "==> Building docker image"
          docker build . --pull --tag "$image"
          docker tag "$image" "$tag"
          
          echo "==> Pushing docker image"
          docker push "$tag"
          docker push "$image"