ci.yml

name: CI
on:
  pull_request:
  push:
    branches:
      - main
jobs:
  main:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        include:
          - elixir: "1.16.2"
            otp: "26.1"
            lint: true
          - elixir: "1.15.6"
            otp: "26.1"
    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0

      - uses: erlef/setup-beam@v1
        with:
          otp-version: ${{matrix.otp}}
          elixir-version: ${{matrix.elixir}}

      - uses: actions/cache@v2
        with:
          path: |
            artifacts/deps
            artifacts/build
          key: ${{ runner.os }}-mix-${{matrix.elixir}}-${{matrix.otp}}-${{ hashFiles('**/mix.lock') }}
          restore-keys: |
            ${{ runner.os }}-mix-

      - name: Configure environment
        run: |
          git config --global user.email "github-actions@noreply.github.com"
          git config --global user.name "github-actions"
          git config --global init.defaultBranch "main"

      - name: Get root dependencies
        run: mix deps.get

      - name: Workspace checks
        run: |
          shopt -s expand_aliases
          alias mix='elixir --erl "-elixir ansi_enabled true" -S mix'
          mix workspace.check
        if: ${{ matrix.lint }}

      - name: Set environment variables
        run: |
          if [[ ${{ github.event_name }} == 'pull_request' ]]; then
            echo "MODIFIED_ARGS=--modified --base origin/main" >> $GITHUB_ENV
            echo "AFFECTED_ARGS=--affected --base origin/main" >> $GITHUB_ENV
          else
            echo "MODIFIED_ARGS=" >> $GITHUB_ENV
            echo "AFFECTED_ARGS=" >> $GITHUB_ENV
          fi

      - name: Get workspace dependencies
        run: |
          shopt -s expand_aliases
          alias mix='elixir --erl "-elixir ansi_enabled true" -S mix'
          mix workspace.run -t deps.get ${{env.AFFECTED_ARGS}}

      - name: Compile dependencies
        run: |
          shopt -s expand_aliases
          alias mix='elixir --erl "-elixir ansi_enabled true" -S mix'
          mix workspace.run -t deps.compile ${{env.AFFECTED_ARGS}} -- --skip-local-deps

      - name: Compile with warnings enabled
        run: |
          shopt -s expand_aliases
          alias mix='elixir --erl "-elixir ansi_enabled true" -S mix'
          mix workspace.run -t compile ${{env.AFFECTED_ARGS}} -- --force --warnings-as-errors
        if: ${{ matrix.lint }}

      - name: Check code formatted
        run: |
          shopt -s expand_aliases
          alias mix='elixir --erl "-elixir ansi_enabled true" -S mix'
          mix workspace.run -t format ${{env.MODIFIED_ARGS}} -- --check-formatted
        if: ${{ matrix.lint }}

      - name: Tests
        run: |
          shopt -s expand_aliases
          alias mix='elixir --erl "-elixir ansi_enabled true" -S mix'
          mix workspace.run -t test ${{env.AFFECTED_ARGS}} -- --cover --warnings-as-errors

      - name: Coverage
        run: |
          shopt -s expand_aliases
          alias mix='elixir --erl "-elixir ansi_enabled true" -S mix'
          mix workspace.test.coverage ${{env.AFFECTED_ARGS}}

      - name: Check docs
        run: |
          shopt -s expand_aliases
          alias mix='elixir --erl "-elixir ansi_enabled true" -S mix'
          mix workspace.run -t docs ${{env.MODIFIED_ARGS}} -- -f html
        if: ${{ matrix.lint }}