_build-matrix.yaml

name: Build matrix

on:
  workflow_call:
    outputs:
      build_matrix:
        description: JSON array of build configurations from matrix.json
        value: ${{ jobs.build-matrix.outputs.build_matrix }}

jobs:
  build-matrix:
    name: Build matrix
    runs-on: ubuntu-latest
    outputs:
      build_matrix: ${{ steps.set-matrix.outputs.build_matrix }}
    steps:
      - name: Checkout
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          sparse-checkout: |
            .github/workflows/matrix.json
          sparse-checkout-cone-mode: false
      - id: set-matrix
        shell: bash
        run: |
          echo "build_matrix=$( cat .github/workflows/matrix.json | jq --monochrome-output --compact-output )" >> $GITHUB_OUTPUT