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name: CI

on:
  pull_request:
  push:
    branches:
      - master
      - staging
      - trying
  schedule:
    - cron: '00 01 * * *'

env:
  RUSTFLAGS: -Dwarnings
  RUST_BACKTRACE: 1

defaults:
  run:
    shell: bash

jobs:
  test:
    name: test
    strategy:
      matrix:
        include:
          # This is the minimum supported Rust version of this crate.
          # When updating this, the reminder to update the minimum supported
          # Rust version in README.md.
          - build: 1.34.0
            rust: 1.34.0
          - build: 1.36.0
            rust: 1.36.0
          - build: 1.37.0
            rust: 1.37.0
          - build: stable
            rust: stable
          - build: beta
            rust: beta
          - build: nightly
            rust: nightly
          # pin-project itself has no platform-dependent implementation.
          # macOS is only used to check that pin-project can interoperate
          # correctly with `#[cfg()]`.
          - build: macos
            os: macos
            rust: nightly
          # - build: windows
          #   os: windows
          #   rust: nightly
    runs-on: ${{ matrix.os || 'ubuntu' }}-latest
    steps:
      - uses: actions/checkout@master
      - name: Install Rust
        run: |
          . ./ci/install-rust.sh ${{ matrix.rust }}
      - name: Install cargo-hack
        if: matrix.rust == 'nightly'
        run: |
          cargo install cargo-hack
      - name: Install cargo-expand
        if: matrix.rust == 'nightly' && matrix.build != 'macos'
        run: |
          cargo install cargo-expand
      - name: Add targets
        if: matrix.rust == 'nightly'
        run: |
          rustup target add thumbv7m-none-eabi
      - name: cargo test (stable)
        if: matrix.rust != 'nightly'
        run: |
          cargo test --all --all-features --exclude expandtest
      - name: cargo test (nightly)
        if: matrix.rust == 'nightly'
        run: |
          cargo test --all --all-features -- -Zunstable-options --include-ignored
      - name: cargo check --target thumbv7m-none-eabi
        if: matrix.rust == 'nightly'
        run: |
          cargo check --target thumbv7m-none-eabi --manifest-path tests/no-std/Cargo.toml
      # Refs: https://github.com/rust-lang/cargo/issues/5657
      - name: cargo check -Zminimal-versions
        if: matrix.rust == 'nightly'
        run: |
          cargo update -Zminimal-versions
          cargo hack check --all --all-features --no-dev-deps --ignore-private

  style:
    name: style
    strategy:
      fail-fast: false
      matrix:
        component:
          - clippy
          - rustfmt
          - rustdoc
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@master
      - name: Install Rust
        run: |
          . ./ci/install-rust.sh
      - name: Install component
        if: matrix.component != 'rustdoc'
        run: |
          . ./ci/install-component.sh ${{ matrix.component }}
      - name: cargo clippy
        if: matrix.component == 'clippy'
        run: |
          cargo clippy --all --all-features --all-targets
      - name: cargo fmt -- --check
        if: matrix.component == 'rustfmt'
        run: |
          cargo fmt --all -- --check
      - name: cargo doc
        if: matrix.component == 'rustdoc'
        env:
          # TODO: once https://github.com/rust-lang/rust/issues/70814 fixed, remove '-Aunused_braces'
          RUSTDOCFLAGS: -Dwarnings -Aunused_braces
        run: |
          cargo doc --no-deps --all --all-features

  # 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
      - test
    runs-on: ubuntu-latest
    steps:
      - name: Mark the job as a success
        run: exit 0
  ci-failure:
    name: ci
    if: github.event_name == 'push' && !success()
    needs:
      - style
      - test
    runs-on: ubuntu-latest
    steps:
      - name: Mark the job as a failure
        run: exit 1