name: 'Cache Julia artifacts, packages and registry'
description: 'Cache Julia using actions/cache'
author: 'Sascha Mann, Rik Huijzer, and contributors'

branding:
  icon: 'archive'
  color: 'purple'

inputs:
  cache-name:
    description: 'Name used as part of the cache keys'
    default: 'julia-cache'
  cache-artifacts:
    description: 'Whether to cache ~/.julia/artifacts/'
    default: 'true'
  cache-packages:
    description: 'Whether to cache ~/.julia/packages/'
    default: 'true'
  cache-registries:
    description: 'Whether to cache ~/.julia/registries/'
    default: 'false'

outputs:
  cache-hit:
    description: 'A boolean value to indicate an exact match was found for the primary key. Returns \"\" when the key is new. Forwarded from actions/cache'
    value: ${{ steps.hit.outputs.cache-hit }}

runs:
  using: 'composite'
  steps:
    - id: paths
      run: |
        [ "${{ inputs.cache-artifacts }}" = "true" ] && A_PATH="~/.julia/artifacts"
        echo "ARTIFACTS_PATH=$A_PATH" >> $GITHUB_ENV
        [ "${{ inputs.cache-packages }}" = "true" ] && P_PATH="~/.julia/packages"
        echo "PACKAGES_PATH=$P_PATH" >> $GITHUB_ENV
        [ "${{ inputs.cache-registries }}" = "true" ] && R_PATH="~/.julia/registries"
        echo "REGISTRIES_PATH=$R_PATH" >> $GITHUB_ENV
      shell: bash

    - uses: actions/cache@c1a5de879eb890d062a85ee0252d6036480b1fe2
      id: cache
      with:
        path: "${{ format('{0}\n{1}\n{2}', env.ARTIFACTS_PATH, env.PACKAGES_PATH, env.REGISTRIES_PATH) }}"
        key: ${{ runner.os }}-test-${{ inputs.cache-name }}-${{ hashFiles('**/Project.toml') }}
        restore-keys: |
          ${{ runner.os }}-test-${{ inputs.cache-name }}-

    - id: hit
      run: echo "cache-hit=$CACHE_HIT" >> $GITHUB_OUTPUT
      env:
        CACHE_HIT: ${{ steps.cache.outputs.cache-hit }}
      shell: bash