emacs-builds/.github/workflows/_release.yml

---
# Requires _prepare.yml and _build.yml re-usable workflows to have run.
name: _release
on:
  workflow_call:
    inputs:
      os:
        description: GitHub Actions runner OS
        type: string
        required: true
      plan_artifact:
        description: Name of artifact containing a emacs-builder plan yaml file
        type: string
        required: true
      dmg_artifact:
        description: Name of artifact containing a *.dmg files to release
        type: string
        required: true
      test_build_name:
        description: "Test build name"
        type: string
        required: false
    secrets:
      TAP_REPO_TOKEN:
        description: Personal Access Token for Homebrew Tap repo
        required: true

jobs:
  github:
    runs-on: ${{ inputs.os }}
    steps:
      - name: Download pre-built emacs-builder artifact
        uses: actions/download-artifact@v3
        with:
          name: emacs-builder
          path: bin
      - name: Ensure emacs-builder is executable
        run: chmod +x bin/emacs-builder
      - name: Download build-plan.yml artifact
        uses: actions/download-artifact@v3
        with:
          name: ${{ inputs.plan_artifact }}
          path: ./
      - name: Download disk image artifacts
        id: dmg
        continue-on-error: true
        uses: actions/download-artifact@v3
        with:
          name: ${{ inputs.dmg_artifact }}
          path: builds
      - name: Publish disk images to a GitHub Release
        if: ${{ steps.dmg.outputs.result != 'fail' }}
        run: >-
          bin/emacs-builder -l debug release --plan build-plan.yml publish
          $(find builds -name '*.dmg' -or -name '*.sha256')
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - name: Trigger update casks workflow in homebrew tap
        if: ${{ steps.dmg.outputs.result != 'fail' && inputs.test_build_name == '' }}
        run: >-
          gh workflow run --repo jimeh/homebrew-emacs-builds update-casks.yml
        env:
          GITHUB_TOKEN: ${{ secrets.TAP_REPO_TOKEN }}
      - run: echo 'No DMG artifact available, was there a new commit to build?'
        if: ${{ steps.dmg.outputs.result == 'fail' }}