pr-main.yml

name: PR Validation

on:
  pull_request:
    branches:
      - main
    paths:
      - "src"
      - "Cargo*"
      - ".cargo"
      - ".github/workflows/pr-main.yml"
      - "rustfmt.toml"
  push:
    branches:
      - main
    paths:
      - "src"
      - "Cargo*"
      - ".cargo"
      - ".github/workflows/pr-main.yml"
      - "rustfmt.toml"

env:
  CARGO_TERM_COLOR: always

jobs:
  build-and-test:
    runs-on: ${{ matrix.platform.os }}

    strategy:
      fail-fast: false

      matrix:
        platform:
          - os: ubuntu-latest
            target: x86_64-unknown-linux-gnu
            command: cargo

          - os: ubuntu-latest
            target: aarch64-unknown-linux-gnu
            command: cross

          - os: windows-latest
            target: x86_64-pc-windows-msvc
            command: cargo

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Set up Rust
        uses: actions-rust-lang/setup-rust-toolchain@v1

      - name: Cache Cargo and cross
        uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            ~/.cargo/bin
          key: ${{ matrix.platform.target }}-cargo-${{ hashFiles('**/Cargo.lock') }}
          restore-keys: ${{ matrix.platform.target }}-cargo

      - name: Install cross
        if: matrix.platform.command == 'cross'
        run: |
          if ! command -v cross &>/dev/null; then
            cargo install cross
          fi

      - name: Build stable
        id: build
        run: ${{ matrix.platform.command }} build --target ${{ matrix.platform.target }};

      - name: Test stable
        id: test
        run: ${{ matrix.platform.command }} test --target ${{ matrix.platform.target }};

      - name: Set up Rust beta
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          toolchain: beta

      - name: Build beta
        id: build-beta
        run: ${{ matrix.platform.command }} +beta build --target ${{ matrix.platform.target }};
        continue-on-error: true

      - name: Test beta
        id: test-beta
        if: ${{ steps.build-beta.outcome == 'success' }}
        run: ${{ matrix.platform.command }} +beta test --target ${{ matrix.platform.target }};
        continue-on-error: true

      - name: Set up Rust nightly
        if: ${{ steps.build-beta.outcome == 'success' }}
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          toolchain: nightly

      - name: Build nightly
        id: build-nightly
        if: ${{ steps.build-beta.outcome == 'success' }}
        run: ${{ matrix.platform.command }} +nightly build --target ${{ matrix.platform.target }};
        continue-on-error: true

      - name: Test nightly
        id: test-nightly
        if: ${{ steps.build-nightly.outcome == 'success' }}
        run: ${{ matrix.platform.command }} +nightly test --target ${{ matrix.platform.target }};
        continue-on-error: true

      - name: Issue warnings for beta/ nightly fails
        if: ${{ steps.build-beta.outcome == 'failure' || steps.test-beta.outcome == 'failure' || steps.build-nightly.outcome == 'failure' || steps.test-nightly.outcome == 'failure' }}
        uses: actions/github-script@v7
        with:
          script: |
            let body = "";

            const beta_build_fail = ${{ steps.build-beta.outcome == 'failure' }};
            const nightly_build_fail = ${{ steps.build-nightly.outcome == 'failure' }};

            if (beta_build_fail || nightly_build_fail) {
              const failed_toolchain = beta_build_fail ? "beta" : "nightly"
              body = body.concat(`🚨 🛠️ Build Failures on **${failed_toolchain}** Rust with **${{ matrix.platform.target }}** target.\n`)
            }

            const beta_test_fail = ${{ steps.test-beta.outcome == 'failure' }};
            const nightly_test_fail = ${{ steps.test-nightly.outcome == 'failure' }};

            if (beta_test_fail || nightly_test_fail) {
              let failed_toolchain = beta_build_fail ? "beta" : ""
              
              if (nightly_test_fail) {
                failed_toolchain = failed_toolchain.concat(" and nightly")
              }

              body = body.concat(`🚨 ❌ Test Failures on **${failed_toolchain}** Rust with **${{ matrix.platform.target }}** target.`)
            }

            github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.payload.pull_request.number,
              body: body
            });

  format:
    needs: build-and-test

    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Install nightly
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          toolchain: nightly
          components: rustfmt

      - name: Format
        run: cargo +nightly fmt --check

  clippy:
    needs: build-and-test

    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup Rust
        uses: actions-rust-lang/setup-rust-toolchain@v1

      - name: Clippy lint
        run: cargo clippy -- -D warnings