ci.yml

name: CI
on: [push, pull_request]

defaults:
  run:
    shell: bash

jobs:
  build:
    name: Build

    strategy:
      fail-fast: false

      matrix:
        toolchain: [stable, beta, nightly]
        target:
          - x86_64-unknown-linux-gnu
          - x86_64-unknown-linux-musl
          - i686-unknown-linux-gnu
          - i686-unknown-linux-musl
        features:
          - ''
          - serde
          - std serde

        include:
          - toolchain: nightly
            target: x86_64-unknown-linux-gnu
            features: sc

    # Allow nightly builds to fail
    continue-on-error: ${{ matrix.toolchain == 'nightly' }}

    runs-on: ubuntu-latest

    steps:
      - name: Set up repo
        uses: actions/checkout@v2
      - name: Install Rust toolchain
        uses: dtolnay/rust-toolchain@stable
        with:
          toolchain: ${{ matrix.toolchain }}
          targets: ${{ matrix.target }}
      - name: Install 32-bit glibc build dependencies
        run: sudo apt-get update && sudo apt-get -y install gcc-multilib
        if: matrix.target == 'i686-unknown-linux-gnu'

      - name: Build
        run: cargo +${{ matrix.toolchain }} build --verbose --target ${{ matrix.target }} --no-default-features --features "${{ matrix.features }}"

      - name: Run tests
        run: cargo +${{ matrix.toolchain }} test --verbose --target ${{ matrix.target }} --no-default-features --features "${{ matrix.features }}"

      - name: Run tests (in user namespace)
        run: unshare -r cargo +${{ matrix.toolchain }} test --verbose --target ${{ matrix.target }} --no-default-features --features "${{ matrix.features }}"

  coverage-tarpaulin:
    name: Tarpaulin

    strategy:
      fail-fast: false

      matrix:
        toolchain: [stable]
        target:
          - x86_64-unknown-linux-gnu
          - x86_64-unknown-linux-musl
        features:
          - ''
        prefix:
          - ''
          - unshare -r

        include:
          - toolchain: nightly
            target: x86_64-unknown-linux-gnu
            features: sc
            prefix: ''
          - toolchain: nightly
            target: x86_64-unknown-linux-gnu
            features: sc
            prefix: unshare -r

    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
      - name: Install Rust toolchain
        uses: dtolnay/rust-toolchain@stable
        with:
          toolchain: ${{ matrix.toolchain }}
          target: ${{ matrix.target }}

      - name: Install tarpaulin
        run: cargo install cargo-tarpaulin

      - name: Run tarpaulin
        run: ${{ matrix.prefix }} cargo +${{ matrix.toolchain }} tarpaulin --verbose --out Xml --target ${{ matrix.target }} --features "${{ matrix.features }}"

      - name: Upload coverage to Codecov
        uses: codecov/codecov-action@v1
        with:
          name: ${{ matrix.toolchain }}-${{ matrix.target }}
          fail_ci_if_error: true
          env_vars: OS,TARGET,TOOLCHAIN,JOB
        env:
          JOB: ${{ github.job }}
          OS: ${{ matrix.os }}
          TARGET: ${{ matrix.target }}
          TOOLCHAIN: ${{ matrix.toolchain }}
          FEATURES: ${{ matrix.features }}