Restore does not find cache key even though it seems to exist

[jbergstroem]

Given the following yaml:

      - name: Check if cache key exists
        uses: martijnhols/actions-cache/[email protected]
        id: cache_exists
        with:
          path: .venv
          key: ${{ runner.os }}-python-deps-${{ hashFiles('poetry.lock') }}

      - name: Set up Python
        uses: actions/setup-python@v4
        if: steps.cache_exists.outputs.cache-hit != 'true'
        with:
          python-version: ${{ env.PYTHON_VERSION }}

      - name: Restore dependency cache
        uses: actions/cache@v3
        if: steps.cache_exists.outputs.cache-hit != 'true'
        id: deps-cache
        with:
          path: .venv
          key: ${{ runner.os }}-python-deps-${{ hashFiles('poetry.lock') }}

I get this output:

Comparing the keys, they look identical (copy pasted manually from output):

• Linux-python-deps-905d6047b1ef7816097d7c2ed5d59e9334470b45f129b2df87b40a4f33058e2a
• Linux-python-deps-905d6047b1ef7816097d7c2ed5d59e9334470b45f129b2df87b40a4f33058e2a

[jbergstroem]

Resorted to just calling the cache endpoint via curl instead:

- name: Check if cache key exists
  id: cache_exists
  env:
    url: "${{ github.api_url }}/repos/${{ github.repository }}/actions/caches"
    key: ${{ runner.os }}-python-deps-${{ hashFiles('poetry.lock') }}
  run: |
    curl -s \
    -H "Accept: application/vnd.github+json" \
    -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
    -H "X-GitHub-Api-Version: 2022-11-28" \
    "${{ env.url }}?key=${{ env.key }}" | jq -r '"cache-hit=" + (.total_count > 0 | tostring)' >> "$GITHUB_OUTPUT"

- name: Set up Python
  uses: actions/setup-python@v4
  if: steps.cache_exists.outputs.cache-hit != 'true'
  with:
    python-version: ${{ env.PYTHON_VERSION }}

[MartijnHols]

You’re setting up Python in between the check and restore. This probably changes the result of the hash function. Either move that step below the cache restore, or reuse the cache key from the check via the output as documented in the readme.

[jbergstroem]

You’re setting up Python in between the check and restore. This probably changes the result of the hash function.

Setting up Python doesn't touch poetry.lock and the signatures are identical. Either way, directly calling the API works fine for me!

Let me know if you think this is a me error and I'm happy to close the issue. Thanks!