name: Build
on:
  pull_request:
  push:
    branches:
      - master
      - staging
      - trying
      - bors/staging
      - bors/trying

env:
  CARGO_TERM_COLOR: always

jobs:
  # Run cargo fmt --check
  style:
    name: style
    runs-on: ubuntu-20.04
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Install Rust
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          override: true
          components: rustfmt

      - name: Fail on warnings
        run: sed -i 's,//deny_warnings_placeholder_for_ci,#![deny(warnings)],' src/lib.rs

      - name: cargo fmt --check
        uses: actions-rs/cargo@v1
        with:
          command: fmt
          args: --all -- --check

  # Compilation check
  check:
    name: check
    runs-on: ubuntu-20.04
    strategy:
      matrix:
        target:
          - x86_64-unknown-linux-gnu
        toolchain:
          - stable
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Install Rust ${{ matrix.toolchain }} with target (${{ matrix.target }})
        uses: actions-rs/toolchain@v1
        with:
          toolchain: ${{ matrix.toolchain }}
          target: ${{ matrix.target }}
          override: true

      - name: Fail on warnings
        run: sed -i 's,//deny_warnings_placeholder_for_ci,#![deny(warnings)],' src/lib.rs

      - name: Cache Dependencies
        uses: Swatinem/rust-cache@v1

      - name: cargo check
        uses: actions-rs/cargo@v1
        with:
          use-cross: false
          command: check
          args: --target=${{ matrix.target }}

  # Clippy
  clippy:
    name: Cargo clippy
    runs-on: ubuntu-20.04
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Install Rust stable
        uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          target: x86_64-unknown-linux-gnu
          override: true

      - name: Fail on warnings
        run: sed -i 's,//deny_warnings_placeholder_for_ci,#![deny(warnings)],' src/lib.rs

      - name: Cache Dependencies
        uses: Swatinem/rust-cache@v1

      - name: cargo clippy
        uses: actions-rs/cargo@v1
        with:
          use-cross: false
          command: clippy

  # Verify all examples
  testexamples:
    name: testexamples
    runs-on: ubuntu-20.04
    strategy:
      matrix:
        target:
          - x86_64-unknown-linux-gnu
        toolchain:
          - stable
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Install Rust ${{ matrix.toolchain }} with target (${{ matrix.target }})
        uses: actions-rs/toolchain@v1
        with:
          toolchain: ${{ matrix.toolchain }}
          target: ${{ matrix.target }}
          override: true

      - name: Cache Dependencies
        uses: Swatinem/rust-cache@v1

      - name: Fail on warnings
        run: sed -i 's,//deny_warnings_placeholder_for_ci,#![deny(warnings)],' src/lib.rs

      - uses: actions-rs/cargo@v1
        with:
          use-cross: false
          command: test
          args: --examples

  # Run test suite for UI
  testui:
    name: testui
    runs-on: ubuntu-20.04
    strategy:
      matrix:
        target:
          - x86_64-unknown-linux-gnu
        toolchain:
          - stable
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Install Rust ${{ matrix.toolchain }} with target (${{ matrix.target }})
        uses: actions-rs/toolchain@v1
        with:
          toolchain: ${{ matrix.toolchain }}
          target: ${{ matrix.target }}
          override: true

      - name: Cache Dependencies
        uses: Swatinem/rust-cache@v1

      - name: Fail on warnings
        run: sed -i 's,//deny_warnings_placeholder_for_ci,#![deny(warnings)],' src/lib.rs


      - uses: actions-rs/cargo@v1
        with:
          use-cross: false
          command: test
          args: --test ui

  # Run test suite
  test:
    name: test
    runs-on: ubuntu-20.04
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Install Rust
        uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          target: thumbv7m-none-eabi
          override: true

      - name: Cache Dependencies
        uses: Swatinem/rust-cache@v1

      - name: Fail on warnings
        run: sed -i 's,//deny_warnings_placeholder_for_ci,#![deny(warnings)],' src/lib.rs

      - uses: actions-rs/cargo@v1
        with:
          use-cross: false
          command: test
          args: --lib

  # Refs: https://github.com/rust-lang/crater/blob/9ab6f9697c901c4a44025cf0a39b73ad5b37d198/.github/workflows/bors.yml#L125-L149
  #
  # ALL THE PREVIOUS JOBS NEEDS TO BE ADDED TO THE `needs` SECTION OF THIS JOB!

  ci-success:
    name: ci
    if: github.event_name == 'push' && success()
    needs:
      - style
      - check
      - clippy
      - testexamples
      - test
      - testui
    runs-on: ubuntu-20.04
    steps:
      - name: Mark the job as a success
        run: exit 0