install-dependencies.yml

name: Define shared variables to be reused by callable workflow

on:
  workflow_call:

jobs:
  install-deps:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
        name: Checkout Base

      - name: Restore variables
        uses: actions/cache/restore@v3
        with:
          path: 'temp/variables.json'
          key: shared-variables-${{ github.run_id }}-${{ github.run_attempt }}
      
      - name: Set env variables
        uses: actions/github-script@v6
        with:
          script: |
            const fs = require('fs');
            const sharedVariables = JSON.parse(fs.readFileSync('temp/variables.json', { encoding: 'utf8' }))
            Object.entries(sharedVariables).forEach(([name, value]) => {
              core.exportVariable(name, value);
            });

      - name: Cache or restore node_modules
        id: cache-nodemodules
        uses: actions/cache@v3
        with:
          path: node_modules
          key: ${{ env.DEPENDENCIES_CACHE_KEY }}
          restore-keys: ${{ env.DEPENDENCIES_RESTORE_KEY }}
      
      - name: Install dependencies
        if: steps.cache-nodemodules.outputs.cache-hit != 'true'
        run: npm ci --legacy-peer-deps