prerelease.yml

name: prerelease
on: 
  workflow_dispatch:
    inputs:
      sha:
        description: "SHA (leave blank for HEAD)"
        required: false

env:
  ACTIONS_API_URL: https://api.github.com/repos/${GITHUB_REPOSITORY}/actions
  VERSION_START_SHA: e87be0e3cfa66411976ca04a72dd29e36c483966

jobs:
  version:
    runs-on: ubuntu-latest
    outputs:
      sha: ${{ steps.sha.outputs.sha }}
      tag: ${{ steps.version.outputs.tag }}
    steps:
      - id: sha
        run: |
           SHA=$(if [[ "${{ github.event.inputs.sha }}" ]]; then echo "${{ github.event.inputs.sha }}"; else echo "${GITHUB_SHA}"; fi)
           SHA7="${SHA::7}"
           echo "sha=${SHA}" >> $GITHUB_OUTPUT
           echo "sha7=${SHA7}" >> $GITHUB_OUTPUT
      - uses: actions/checkout@v4
        with:
          ref: ${{ steps.sha.outputs.sha }}
          fetch-depth: 0
      - id: version
        run: |
          VERSION_MAJOR=$(grep -Eo "VERSION_MAJOR\s+[0-9]+" src/version.h | grep -Eo "[0-9]+")
          VERSION_MINOR=$(grep -Eo "VERSION_MINOR\s+[0-9]+" src/version.h | grep -Eo "[0-9]+")
          VERSION_REV=$(grep -Eo "VERSION_REV\s+[0-9]+" src/version.h | grep -Eo "[0-9]+")
          VERSION="${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_REV}"
          REVISION=$(git rev-list ${{ env.VERSION_START_SHA }}..${{ steps.sha.outputs.sha }} --count)
          SHA="${GITHUB_SHA}"
          echo "tag=${VERSION}-${REVISION}-${{ steps.sha.outputs.sha7 }}" >> $GITHUB_OUTPUT

  prerelease:
    runs-on: ubuntu-latest
    needs: [ version ]
    steps:
      - id: download
        run: |
           WORKFLOWS=("pinmame" "pinmame32" "vpinmame" "libpinmame" "xpinmame")
           curl -s "${{ env.ACTIONS_API_URL }}/runs" --output runs.json
           for name in "${WORKFLOWS[@]}"
           do 
              RUN_ID=$(jq -r --arg SHA "${{ needs.version.outputs.sha }}" --arg NAME "${name}" '.workflow_runs[] | select(.head_sha==$SHA and .name==$NAME) | .id' runs.json) 
              echo "Downloading ${name} artifact list ${RUN_ID}..."
              curl -s "${{ env.ACTIONS_API_URL }}/runs/${RUN_ID}/artifacts" --output artifacts.json
              ARTIFACTS=($(jq -r '.artifacts[] | .archive_download_url' artifacts.json)) 
              for url in ${ARTIFACTS[@]}
              do
                 echo "Downloading artifact: ${url}..."
                 curl -s -OJ -L -H "authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" ${url}
              done
           done
           rm *.json
      - id: create_release
        uses: ncipollo/release-action@v1
        with:
          prerelease: true
          name: "v${{ needs.version.outputs.tag }}"
          tag: "v${{ needs.version.outputs.tag }}" 
          commit: ${{ needs.version.outputs.sha }}
          token:  ${{ secrets.GITHUB_TOKEN }}
          artifacts: "*"