name: CI

on:
  push:
    branches:
      - master
  pull_request:
    branches:
      - "**"

env:
  CARGO_TERM_COLOR: always
  CARGO_INCREMENTAL: 0

jobs:
  tests:
    name: Tests
    runs-on: macos-latest
    steps:
      - name: Checkout repo
        uses: actions/checkout@v2

      # Work around https://github.com/actions/cache/issues/403.
      - name: Use GNU tar
        run: |
          echo PATH="/usr/local/opt/gnu-tar/libexec/gnubin:$PATH" >> $GITHUB_ENV

      - name: Cache artifacts
        id: cache
        uses: actions/cache@v2
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ runner.os }}-cargo-${{ hashFiles('Cargo.lock') }}

      - name: Install rust
        if: steps.cache.outputs.cache-hit != 'true'
        uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          profile: minimal

      - name: Run tests
        run: cargo test