build.yml

name: Build and push
on:
  push:
    branches: [master]
  workflow_dispatch:

jobs:
  build:
    name: Build
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3

      - name: Setup pnpm
        uses: pnpm/action-setup@v2
        with:
          version: 8
      - name: Setup node
        uses: actions/setup-node@v3
        with:
          node-version: 18
          cache: pnpm
      - name: Install dependencies
        run: pnpm i

      - name: Build
        run: pnpm run build

      - name: Upload artifact
        uses: actions/upload-artifact@v3
        with:
          name: dist
          path: dist/*

  push:
    name: Push to branch
    runs-on: ubuntu-latest
    needs: build

    permissions:
      contents: write

    steps:
      - uses: actions/checkout@v3
        with:
          ref: builds

      - name: Cleanup
        run: git rm -r . || git rm -r * || true

      - name: Download artifact
        uses: actions/download-artifact@v3
        with:
          name: dist
          path: "."

      - name: Commit files
        run: |
          git config --local user.email "actions@github.com"
          git config --local user.name "GitHub Actions"
          git add .
          git commit -m "Build $GITHUB_SHA" || exit 0
          git push