build-cache.yml

name: Build and cache site

on:
  push:
    branches:
      - develop

env:
  NODE_OPTIONS: '--max-old-space-size=4096'
  CHOKIDAR_USEPOLLING: 1

jobs:
  build:
    name: Gatsby Build
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v2

      - name: Setup Node.js
        uses: actions/setup-node@v2
        with:
          node-version: 12

      - name: Cache dependencies
        id: yarn-cache
        uses: actions/cache@v2
        with:
          path: '**/node_modules'
          key: ${{ runner.os }}-node-modules-${{ hashFiles('**/yarn.lock') }}

      - name: Cache Gatsby build
        uses: actions/cache@v2
        with:
          path: |
            public
            .cache
          key: ${{ runner.os }}-gatsby-build-${{ github.run_id }}
          restore-keys: |
            ${{ runner.os }}-gatsby-build-

      - name: Install dependencies
        if: steps.yarn-cache.outputs.cache-hit != 'true'
        run: yarn install --frozen-lockfile

      - name: Gatsby build
        run: yarn build:production --log-pages
        env:
          GATSBY_EXPERIMENTAL_PAGE_BUILD_ON_DATA_CHANGES: true
          CI: true