build.yml

name: Build
on:
  workflow_call:
    inputs:
      pakset_ref:
        description: 'The commit hash, branch or tag name of the pakset to use.'
        type: string
        default: master
        required: false

      simutrans_repository:
        description: 'The owner of the simutrans-extended repository'
        type: string
        default: simutrans/simutrans-extended
        required: false
      simutrans_ref:
        description: 'The commit hash, branch or tag name of the simutrans-extended build to use.'
        type: string
        default: Nightly
        required: false

jobs:
  build:
    name: Build the pakset
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
        with:
          ref: ${{ inputs.pakset_ref }}
      - name: Set env.pakset_hash
        run: echo "pakset_hash=$(git rev-parse ${{ inputs.pakset_ref }})" >> $GITHUB_ENV

      - uses: actions/checkout@v2
        with:
          repository: ${{ inputs.simutrans_repository }}
          ref: ${{ inputs.simutrans_ref }}
          path: simutrans-extended
      - name: Set env.simutrans_hash
        run: |
          cd ./simutrans-extended
          echo "simutrans_hash=$(git rev-parse ${{ inputs.simutrans_ref }})" >> $GITHUB_ENV
          cd ..
          rm -rf ./simutrans-extended

      - name: Load Build Cache
        uses: actions/cache@v2
        id: cache
        with:
          path: ./pak128.Britain-Ex
          key: nightly-${{ env.pakset_hash }}@${{ env.simutrans_hash }}

      - name: Get makeobj
        if: steps.cache.outputs.cache-hit != 'true'
        uses: dawidd6/action-download-artifact@v2
        with:
          repo: simutrans/simutrans-extended
          workflow: ci.yml
          commit: ${{ env.simutrans_hash }}
          workflow_conclusion: success
          path: .
          name: makeobj-linux-nightly

      - name: Build the pak
        if: steps.cache.outputs.cache-hit != 'true'
        run: |
          chmod +x ./makeobj-extended
          make
          echo "{
            \"timestamp\" : \"$(date)\",
            \"pakset_version\" : \"${{ env.pakset_hash }}\",
            \"makeobj_version\" : \"${{ env.simutrans_hash }}\"
          }" > ./pak128.Britain-Ex/build-metadata.json
          ls -l

      #Workarround to bypass the restriction of workflow run output variables (currently not supported, but will be in a later release according to the github roadmap)
      - name: upload build metadata
        uses: actions/upload-artifact@v2
        with:
          name: build-metadata
          path: ./pak128.Britain-Ex/build-metadata.json