ci_cd-multi_project.yml

name: Multi-project CI/CD

on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]

jobs:
  setup:
    name: Set up projects

    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2

      - name: Set matrix
        id: set-matrix
        run: |
          MATRIX=$(echo $(cat .github/workflows/matrix.json) | sed 's/ //g' )
          echo "::set-output name=matrix::$MATRIX"

    outputs:
      matrix: ${{ steps.set-matrix.outputs.matrix }}

  build:
    name: Build and test "${{ matrix.project.directory }}"

    needs: [ setup ]

    runs-on: ubuntu-latest

    strategy:
      fail-fast: false
      matrix: ${{ fromJson(needs.setup.outputs.matrix) }}

    services:
      db:
        image: postgres:11
        ports: [ '5432:5432' ]
        env:
          POSTGRES_PASSWORD: postgres
        options: >-
          --health-cmd pg_isready
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5

    defaults:
      run:
        working-directory: ${{ matrix.project.directory }}

    steps:
      - uses: actions/checkout@v2

      - name: Set up Elixir
        uses: erlef/setup-elixir@885971a72ed1f9240973bd92ab57af8c1aa68f24
        with:
          elixir-version: '1.11.3'
          otp-version: '23.2'

      - name: Restore dependencies cache
        uses: actions/cache@v2
        with:
          path: deps
          key: ${{ runner.os }}-mix-${{ hashFiles('**/mix.lock') }}
          restore-keys: ${{ runner.os }}-mix-

      - name: Install dependencies
        run: mix deps.get

      - name: Check formatting
        run: mix format --check-formatted

      - name: Compile code
        env:
          MIX_ENV: test
        run: mix compile

      - name: Analyze code
        if: matrix.project.analyze
        env:
          MIX_ENV: test
        run: mix credo --strict

      - name: Run tests
        env:
          MIX_ENV: test
        run: mix test

      - name: Generate coverage report
        if: matrix.project.cover
        env:
          MIX_ENV: test
        run: mix coveralls.json

      - name: Upload coverage to Codecov
        if: matrix.project.cover
        uses: codecov/codecov-action@v1
        with:
          fail_ci_if_error: true
          flags: ${{ matrix.project.flag }}
          token: ${{ secrets.CODECOV_TOKEN }}

  deploy:
    name: Deploy release "${{ matrix.project.directory }}"

    needs: [ setup, build ]
    if: github.ref == 'refs/heads/main'

    runs-on: ubuntu-latest

    strategy:
      fail-fast: false
      matrix: ${{ fromJson(needs.setup.outputs.matrix) }}

    steps:
      - uses: actions/checkout@v2
        if: matrix.project.deploy
        with:
          fetch-depth: 0
          ref: main

      - name: Set up Python
        if: matrix.project.deploy
        uses: actions/setup-python@v2
        with:
          python-version: 3.8.1

      - name: Deploying to Gigalixir
        if: matrix.project.deploy
        uses: mhanberg/gigalixir-action@v0.6.0
        with:
          APP_SUBFOLDER: ${{ matrix.project.directory }}
          GIGALIXIR_APP: ${{ matrix.project.app }}
          GIGALIXIR_CLEAN: true
          GIGALIXIR_USERNAME: ${{ secrets.GIGALIXIR_USERNAME }}
          GIGALIXIR_PASSWORD: ${{ secrets.GIGALIXIR_PASSWORD }}
          MIGRATIONS: true
          SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }}