name: Keep caches warm

# **What it does**: Makes sure the caching of ./node_modules and ./.next

# is kept warm for making pull requests more rapid.

# **Why we have it**: A PR workflow that depends on caching can't reuse a

# cached artifact acorss PRs unless it also runs on `main`.

# **Who does it impact**: Docs engineering, open-source engineering contributors.

on:

workflow_dispatch:

push:

branches:

- main

permissions:

contents: read

jobs:

keep-caches-warm:

if: github.repository == 'github/docs-internal' || github.repository == 'github/docs'

runs-on: ${{ fromJSON('["ubuntu-latest", "ubuntu-20.04-xl"]')[github.repository == 'github/docs-internal'] }}

steps:

- name: Check out repo

uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8

- uses: ./.github/actions/node-npm-setup

- name: Cache nextjs build

uses: actions/cache@9b0c1fce7a93df8e3bb8926b0d6e9d89e92f20a7

with:

path: .next/cache

key: ${{ runner.os }}-nextjs-${{ hashFiles('package*.json') }}

- name: Build

run: npm run build