name: validate

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

on:
  workflow_dispatch:
  push:
    branches:
      - 'main'
  pull_request:
    paths-ignore:
      - '.github/*-releases.json'

jobs:
  prepare:
    runs-on: ubuntu-20.04
    outputs:
      targets: ${{ steps.targets.outputs.matrix }}
    steps:
      -
        name: Checkout
        uses: actions/checkout@v3
      -
        name: Matrix
        id: targets
        run: |
          echo "matrix=$(docker buildx bake validate --print | jq -cr '.group.validate.targets')" >> $GITHUB_OUTPUT

  validate:
    runs-on: ubuntu-latest
    needs:
      - prepare
    strategy:
      fail-fast: false
      matrix:
        target: ${{ fromJson(needs.prepare.outputs.targets) }}
    steps:
      -
        name: Checkout
        uses: actions/checkout@v3
      -
        name: Validate
        uses: docker/bake-action@v3
        with:
          targets: ${{ matrix.target }}