name: ci
on:
  pull_request:
  push:
    branches:
      - main
  schedule:
    - cron: "0 0 * * 1"

jobs:
  rustfmt:
    name: Check rustfmt
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - run: cargo fmt --all -- --check

  clippy:
    name: Run linter
    runs-on: ubuntu-latest

    strategy:
      matrix:
        rust: ["1.56"]

    env:
      RUSTFLAGS: -D warnings
      RUSTDOCFLAGS: -D warnings
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - uses: hecrj/setup-rust-action@v1
        with:
          components: clippy
          rust-version: ${{ matrix.rust }}
      - name: Cache cargo directories
        uses: actions/cache@v2
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.toml') }}
          restore-keys: |
            ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.toml') }}
            ${{ runner.os }}-cargo-
      - name: Cache cargo target dirs
        uses: actions/cache@v2
        with:
          path: target
          key: ${{ runner.os }}-target-lint-stable-${{ hashFiles('**/Cargo.toml') }}
          restore-keys: |
            ${{ runner.os }}-target-lint-stable-${{ hashFiles('**/Cargo.toml') }}
            ${{ runner.os }}-target-lint-stable-
            ${{ runner.os }}-target-lint-

      # feature testing
      - name: no features
        run: cargo clippy --workspace --all-targets

      - name: docking feature
        run: cargo clippy --workspace --all-targets --features docking

      - name: freetype feature
        run: cargo clippy --workspace --all-targets --features freetype

      - name: freetype and docking
        run: cargo clippy --workspace --all-targets --features freetype,docking

      - name: all features
        run: cargo clippy --workspace --all-targets --features docking,freetype

  test:
    name: Run tests
    runs-on: ${{ matrix.os }}
    env:
      RUSTFLAGS: -D warnings
      RUST_BACKTRACE: 1
    strategy:
      fail-fast: false
      matrix:
        rust:
          - stable
          - beta
          - "1.56"
        os:
          - ubuntu-latest
          - macos-latest
          - windows-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - name: Install toolchain
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: ${{ matrix.rust }}
          override: true
      - run: sudo apt install libxcb-shape0-dev libxcb-xfixes0-dev
        if: runner.os == 'Linux'
      # workaround for https://github.com/actions/cache/issues/403
      - name: Install GNU tar
        if: matrix.os == 'macos-latest'
        run: |
          brew install gnu-tar
          echo PATH="/usr/local/opt/gnu-tar/libexec/gnubin:$PATH" >> $GITHUB_ENV
      - name: Cache cargo directories
        uses: actions/cache@v2
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.toml') }}
          restore-keys: |
            ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.toml') }}
            ${{ runner.os }}-cargo-
      - name: Cache cargo target dirs
        uses: actions/cache@v2
        with:
          path: target
          # note `cargo test` and `cargo clippy` don't use the same build
          # artifacts, so this has a different key
          key: ${{ runner.os }}-target-test-${{ matrix.rust }}-${{ hashFiles('**/Cargo.toml') }}
          restore-keys: |
            ${{ runner.os }}-target-test-${{ matrix.rust }}-${{ hashFiles('**/Cargo.toml') }}
            ${{ runner.os }}-target-test-${{ matrix.rust }}-

      # - name: Setup vcpkg
      #   if: matrix.os == 'windows-latest'
      #   run: vcpkg integrate install; vcpkg install freetype;

      # feature testing
      - name: no features
        run: cargo test --workspace --all-targets

      - name: docking feature
        run: cargo test --workspace --all-targets --features docking

      - name: freetype feature
        if: matrix.os != 'windows-latest'
        run: cargo test --workspace --all-targets --features freetype

      - name: all features
        if: matrix.os != 'windows-latest'
        run: cargo test --workspace --all-targets --features docking,freetype

      - name: doc tests
        run: cargo test --workspace --doc

      # run to check for lint problems
      - name: build documentation
        run: cargo doc

      # Run unreasonably slow tests under release, but only the crates that have
      # them, and don't bother doing this on most platforms.
      - run: cargo test -p imgui --release -- --ignored
        if: matrix.os == 'ubuntu-latest' && matrix.rust == 'stable'