homebrew-emacs-builds/.github/workflows/update-formulas.yml

---
name: Update Formulas
on:
  schedule:
    - cron: "0 3 * * *"
  workflow_dispatch:
    inputs:
      extraArgs:
        description: "Extra arguments passed to emacs-builder cask update"
        required: false
        default: ""

jobs:
  update:
    runs-on: macos-10.15
    steps:
      - name: Checkout tap repository
        uses: actions/checkout@v2
        with:
          path: tap
      - name: Symlink homebrew tap
        run: |
          mkdir -p '$(brew --repo)/Library/Taps/jimeh'
          ln -s '${{ github.workspace }}/tap' \
             '$(brew --repo)/Library/Taps/jimeh/homebrew-emacs-builds'
      - name: brew livecheck
        run: >-
          brew livecheck --json --quiet --tap jimeh/emacs-builds
          > livecheck-results.json
      - name: Upload livecheck-results.json artifact
        uses: actions/upload-artifact@v2
        with:
          name: livecheck-results.json
          path: livecheck-results.json
          if-no-files-found: error
      - name: Checkout build-emacs-for-macos for emacs-builder tool
        uses: actions/checkout@v2
        with:
          repository: jimeh/build-emacs-for-macos
          ref: "v0.6.1"
          path: builder
      - uses: actions/setup-go@v2
        with:
          go-version: 1.16
      - name: Pre-build emacs-builder tool
        run: make build
        working-directory: builder
      - name: Update Cask formulas
        run: >-
          builder/bin/emacs-builder cask update
          --builds-repository jimeh/emacs-builds
          --templates-dir tap/templates
          ${{ github.event.inputs.extraArgs }}
          livecheck-results.json
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}