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

---
name: _prepare
on:
  workflow_call:
    inputs:
      os:
        description: GitHub Actions runner OS
        type: string
        required: true
      builder_ref:
        description: Git ref to checkout of build-emacs-for-macos
        required: false
        type: string
        default: "v0.6.42"
    secrets:
      TAP_REPO_TOKEN:
        description: Personal Access Token for Homebrew Tap repo
        required: true

jobs:
  emacs-builder:
    runs-on: ${{ inputs.os }}
    steps:
      - name: Checkout build-emacs-for-macos repo
        uses: actions/checkout@v4
        with:
          repository: jimeh/build-emacs-for-macos
          ref: ${{ inputs.builder_ref }}
          path: builder
      - name: Store builder Git SHA
        run: |
          git rev-parse HEAD > emacs-builder-git-sha.txt
        working-directory: builder
      - name: Upload builder git SHA artifact
        uses: actions/upload-artifact@v3
        with:
          name: emacs-builder-git-sha
          path: builder/emacs-builder-git-sha.txt
          if-no-files-found: error
      - uses: actions/setup-go@v4
        with:
          go-version: 1.21
      - name: Build emacs-builder tool
        run: make build
        working-directory: builder
      - name: Upload emacs-builder artifact
        uses: actions/upload-artifact@v3
        with:
          name: emacs-builder
          path: builder/bin/emacs-builder
          if-no-files-found: error