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name: CI

on:
  pull_request:
  push:
    branches:
      - master
      - staging
  schedule:
    - cron: '0 1 * * *'

env:
  CARGO_INCREMENTAL: 0
  RUSTFLAGS: -D warnings
  RUST_BACKTRACE: 1

defaults:
  run:
    shell: bash

jobs:
  test:
    strategy:
      matrix:
        rust:
          # 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.
          - 1.37.0
          - stable
          - beta
        include:
          - os: ubuntu-latest
            rust: nightly
          # pin-project itself has no platform-dependent implementation.
          # macOS is only used to check that pin-project can interoperate
          # correctly with `#[cfg()]`.
          - os: macos-latest
            rust: nightly
    runs-on: ${{ matrix.os || 'ubuntu-latest' }}
    steps:
      - uses: actions/checkout@v2
      - uses: taiki-e/github-actions/install-rust@main
        with:
          toolchain: ${{ matrix.rust }}
      - if: startsWith(matrix.rust, 'nightly')
        run: cargo install cargo-hack
      - run: rustup target add thumbv7m-none-eabi
      - run: cargo test --all --all-features --exclude expandtest
      - run: cargo check --manifest-path tests/no-std/Cargo.toml --target thumbv7m-none-eabi
      - run: cargo check --manifest-path tests/rust-2015/Cargo.toml --target thumbv7m-none-eabi
      - if: startsWith(matrix.rust, 'nightly')
        run: bash scripts/check-minimal-versions.sh

  expandtest:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: taiki-e/github-actions/install-rust@main
        with:
          component: rustfmt
      - name: Fetch latest release version of cargo-expand
        run: |
          mkdir -p .github/caching
          curl -LsSf https://api.github.com/repos/dtolnay/cargo-expand/releases/latest | jq -r '.name' > .github/caching/cargo-expand.lock
      - name: Cache cargo-expand
        id: cache-cargo-expand
        uses: actions/cache@v2
        with:
          path: ${{ runner.tool_cache }}/cargo-expand/bin
          key: cargo-expand-bin-${{ hashFiles('.github/caching/cargo-expand.lock') }}
      - name: Install cargo-expand
        if: steps.cache-cargo-expand.outputs.cache-hit != 'true'
        run: cargo install -f cargo-expand --root ${{ runner.tool_cache }}/cargo-expand
      - run: echo "${{ runner.tool_cache }}/cargo-expand/bin" >> "${GITHUB_PATH}"
      - run: cargo test -p expandtest

  miri:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: taiki-e/github-actions/install-rust@main
        with:
          component: miri
      - run: cargo miri test

  clippy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: taiki-e/github-actions/install-rust@main
        with:
          component: clippy
      - run: cargo clippy --all --all-features --all-targets

  rustfmt:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: taiki-e/github-actions/install-rust@main
        with:
          component: rustfmt
      - run: cargo fmt --all -- --check

  rustdoc:
    env:
      RUSTDOCFLAGS: -D warnings
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: taiki-e/github-actions/install-rust@main
      - run: cargo doc --no-deps --all --all-features

  shellcheck:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - run: shellcheck **/*.sh

  # These jobs don't actually test anything, but they're used to tell bors the
  # build completed, as there is no practical way to detect when a workflow is
  # successful listening to webhooks only.
  #
  # 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:
      - test
      - expandtest
      - miri
      - clippy
      - rustfmt
      - rustdoc
      - shellcheck
    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:
      - test
      - expandtest
      - miri
      - clippy
      - rustfmt
      - rustdoc
      - shellcheck
    runs-on: ubuntu-latest
    steps:
      - name: Mark the job as a failure
        run: exit 1