ci.yaml

name: CI

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

env:
  MIX_ENV: test
  POSTGRES_USER: postgres
  POSTGRES_PASSWORD: postgres

jobs:
  deps:
    name: Dependencies
    runs-on: ubuntu-latest
    strategy:
      matrix:
        elixir: [1.14.5]
        otp: [25]
    steps:
      - name: Cancel Previous Runs
        uses: styfle/cancel-workflow-action@0.6.0
        with:
          access_token: ${{ github.token }}

      - name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: 0

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

      # - name: Authorize Oban
      #   run: |
      #     mix hex.repo add oban https://getoban.pro/repo \
      #       --fetch-public-key ${{secrets.OBAN_KEY_FINGERPRINT}} \
      #       --auth-key ${{secrets.OBAN_LICENSE_KEY}}

      - name: Retrieve Cached Dependencies
        uses: actions/cache@v2
        id: mix-cache
        with:
          path: |
            deps
            _build
            priv/plts
          key: ${{ runner.os }}-${{ matrix.otp }}-${{ matrix.elixir }}-${{ hashFiles('mix.lock') }}

      - name: Install Dependencies
        if: steps.mix-cache.outputs.cache-hit != 'true'
        run: |
          mkdir -p priv/plts
          mix local.rebar --force
          mix local.hex --force
          mix deps.get
          mix deps.compile
          mix dialyzer --plt

  static_code_analysis:
    name: Static Code Analysis
    needs: deps
    runs-on: ubuntu-latest
    strategy:
      matrix:
        elixir: [1.14.5]
        otp: [25]
    steps:
      - name: Cancel Previous Runs
        uses: styfle/cancel-workflow-action@0.6.0
        with:
          access_token: ${{ github.token }}

      - name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: 0

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

      - name: Retrieve Cached Dependencies
        uses: actions/cache@v2
        id: mix-cache
        with:
          path: |
            deps
            _build
            priv/plts
          key: ${{ runner.os }}-${{ matrix.otp }}-${{ matrix.elixir }}-${{ hashFiles('mix.lock') }}

      - name: Check Code Format
        run: mix format --check-formatted

      - name: Run Credo
        run: mix credo

      # This thing is too slow and too flaky. Maybe some day.
      # - name: Run Dialyzer
      #   run: mix dialyzer --no-check

  unit_tests:
    name: Unit Tests
    needs: deps
    runs-on: ubuntu-latest
    services:
      postgres:
        image: postgres:13
        env:
          POSTGRES_USER: postgres
          POSTGRES_PASSWORD: postgres
          POSTGRES_DB: banchan_test
        ports:
          - 5432:5432
        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
    strategy:
      fail-fast: false
      matrix:
        elixir: [1.14.5]
        otp: [25]
    steps:
      - name: Cancel Previous Runs
        uses: styfle/cancel-workflow-action@0.6.0
        with:
          access_token: ${{ github.token }}

      - name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: 0

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

      - name: Retrieve Cached Dependencies
        uses: actions/cache@v2
        id: mix-cache
        with:
          path: |
            deps
            _build
            priv/plts
          key: ${{ runner.os }}-${{ matrix.otp }}-${{ matrix.elixir }}-${{ hashFiles('mix.lock') }}

      - name: Install FFmpeg
        uses: FedericoCarboni/setup-ffmpeg@v3

      - name: Run test
        run: mix coveralls.github --trace --slowest 10
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

  get_current_tag:
    name: Get Current Tag
    runs-on: ubuntu-latest
    outputs:
      tag: ${{ steps.get_tag.outputs.tag }}
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
      - name: Get Tag
        id: get_tag
        run: echo "tag=$(git tag --points-at HEAD | head -n 1)" >> "$GITHUB_OUTPUT"

  publish:
    name: Publish release
    runs-on: ubuntu-latest
    needs: [unit_tests, static_code_analysis, get_current_tag]
    if: needs.get_current_tag.outputs.tag != ''
    permissions:
      contents: write
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          ref: refs/tags/${{ needs.get_current_tag.outputs.tag }}
      - name: Publish release
        uses: ghalactic/github-release-from-tag@v5
        with:
          token: ${{ secrets.RELEASE_PAT }}