ci.yml

name: CI

on:
  pull_request:
    paths:
      - layers/**

jobs:
  matrix:
    name: Find layers
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Fetch master from where the PR started
        run: git fetch --no-tags --prune --depth=1 origin +refs/heads/*:refs/remotes/origin/*

      - name: Find layers
        id: find-layers
        run: echo "::set-output name=list::$(git diff --name-only origin/${{ github.base_ref }} HEAD | grep layers/ | cut -d / -f 2 | sort | uniq | jq -R -s -c 'split("\n")[:-1]')"

    outputs:
      # Make the outputs accessible outside this job
      list: ${{ steps.find-layers.outputs.list }}

  build:
    needs: matrix
    name: Build and test layer
    runs-on: ubuntu-latest
    env:
      DOCKER_BUILDKIT: '1'
    strategy:
      fail-fast: false
      matrix:
        layer: ${{ fromJson(needs.matrix.outputs.list) }}

    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Build docker images
        run: layer=${{ matrix.layer }} make docker-images

      - name: Test images
        run: layer=${{ matrix.layer }} make test