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'
  cache-compiled:
    description: 'Whether to cache ~/.julia/compiled. USE WITH CAUTION! See https://github.com/julia-actions/cache/issues/11 for caveats.'
    default: 'false'
  cache-scratchspaces:
    description: 'Whether to cache ~/.julia/scratchspaces/'
    default: 'true'

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" >> $GITHUB_OUTPUT
        [ "${{ inputs.cache-packages }}" = "true" ] && P_PATH="~/.julia/packages"
        echo "packages-path=$P_PATH" >> $GITHUB_OUTPUT
        [ "${{ inputs.cache-registries }}" = "true" ] && R_PATH="~/.julia/registries"
        echo "registries-path=$R_PATH" >> $GITHUB_OUTPUT
        [ "${{ inputs.cache-compiled }}" = "true" ] && PCC_PATH="~/.julia/compiled"
        echo "precompilation-cache-path=$PCC_PATH" >> $GITHUB_OUTPUT
        [ "${{ inputs.cache-scratchspaces }}" = "true" ] && S_PATH="~/.julia/scratchspaces"
        echo "scratchspaces-path=$S_PATH" >> $GITHUB_OUTPUT
      shell: bash

    - uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84
      id: cache
      with:
        path: "${{ format('{0}\n{1}\n{2}\n{3}\n{4}', steps.paths.outputs.artifacts-path, steps.paths.outputs.packages-path, steps.paths.outputs.registries-path, steps.paths.outputs.precompilation-cache-path, steps.paths.outputs.scratchspaces-path) }}"
        key: ${{ runner.os }}-${{ inputs.cache-name }}-${{ hashFiles('**/Project.toml') }}
        restore-keys: |
          ${{ runner.os }}-${{ inputs.cache-name }}-

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