10 things I love about GitHub Actions (cache)

gh-actions-cache.yml

steps:
  - uses: actions/checkout@v2
  - uses: actions/setup-python@v1
    with:
      python-version: 3.8
  - uses: actions/cache@v1
    id: cache
    with:
      path: ~/.cache/pip
      key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
      restore-keys: |
        ${{ runner.os }}-pip-
  - runs: pip install -U -r requirements.txt
    if: steps.cache.outputs.cache-hit != 'true'