How to cache firebase/emulators directory using GitHub Actions

Question

I am using the firebase emulator to run my tests and, I received a warning about a chance of optimization using the cache system.

How I can do this?

It appears you are running in a CI environment. You can avoid downloading the Firestore Emulator repeatedly by caching the /home/runner/.cache/firebase/emulators directory.

Answer 1

If you need to update tool when npm package updates use something like this:

- name: Get Library Versions For Binary Caching
    id: cache-settings
    run: |
      echo "::set-output name=firebase-tools::$(yarn list -s --depth=0 --pattern firebase-tools | tail -n 1 | sed 's/.*@//g')"
      echo "::set-output name=firebase-tools::$(npm list -s --depth=0 | grep firebase-tools | tail -n 1 | sed 's/.*@//g')"

  - name: Cache Firebase Emulator Binaries
    uses: actions/cache@v2.1.2
    with:
      path: ~/.cache/firebase/emulators
      key: ${{ runner.os }}-firebase-${{ steps.cache-settings.outputs.firebase-tools }}