Caching preamble for Elixir workflows in GitHub Actions

main.yml

   steps:
    - uses: actions/checkout@v3

    - name: asdf setup
      uses: asdf-vm/actions/setup@v1

    - name: Restore asdf cache
      id: asdf-cache
      uses: actions/cache@v3
      with:
        path: ~/.asdf/
        key: ${{ runner.os }}-asdf-${{ hashFiles('**/.tool-versions') }}

    - name: asdf install
      if: steps.asdf-cache.outputs.cache-hit != 'true'
      uses: asdf-vm/actions/install@v1

    - name: Restore dependencies cache
      uses: actions/cache@v3
      with:
        path: |
          deps
        key: ${{ runner.os }}-mix-${{ hashFiles('**/mix.lock') }}-${{ hashFiles('**/.tool-versions') }}
        restore-keys: ${{ runner.os }}-mix-

    - name: Restore build cache
      uses: actions/cache@v3
      with:
        path: |
          _build
        key: ${{ runner.os }}-mix-${{ hashFiles('**/mix.lock') }}-cfg-${{ hashFiles('**/config/*.exs') }}-${{ hashFiles('**/.to
ol-versions') }}
        restore-keys: ${{ runner.os }}-mix-

    - name: Install dependencies
      run: |
        mix local.hex --force
        mix local.rebar --force
        mix deps.get
    
    - name: Retrieve Dialyzer PLT cache
      uses: actions/cache@v3
      id: plt-cache
      with:
        path: priv/plts
        key: ${{ runner.os }}-plts-${{ hashFiles('**/mix.lock') }}-${{ hashFiles('**/.tool-versions') }}
    - name: Create Dialyzer PLTs
      if: steps.plt-cache.outputs.cache-hit != 'true'
      run: |
        mkdir -p priv/plts
        mix dialyzer --plt
    - name: Run Dialyzer
      run: MIX_ENV=test mix dialyzer --no-check