action.yaml

name: 'Install and Cache Terraform Plugin'
description: 'Installs Terraform plugin and cache it.'
inputs:
  caching:
    description: 'Whether to cache dependies or not.'
    required: false
    default: 'true'
  tf-version:
    description: 'The Terraform version to be used.'
    required: true
    default: 1.4
outputs:
  used-cache:
    description: 'Whether the cache was used.'
    value: ${{ steps.install.outputs.cache }}

runs:
  using: 'composite'
  steps:
    - name: Setup Terraform
      uses: hashicorp/setup-terraform@v3.1.2
      with:
        terraform_version: inputs.tf-version

    - name: Cache Terraform
      if: inputs.caching == 'true'
      id: cache
      uses: actions/cache@v4
      with:
        path: |
          ~/.terraform.d/plugin-cache
        key: ${{ runner.os }}-terraform-${{ hashFiles('**/.terraform.lock.hcl') }}
        restore-keys: |
          ${{ runner.os }}-terraform-

    - name: Config Terraform plugin cache
      id: install
      if: steps.cache.outputs.cache-hit != 'true' || inputs.caching != 'true'
      run: |
        echo 'plugin_cache_dir="$HOME/.terraform.d/plugin-cache"' >~/.terraformrc
        mkdir --parents ~/.terraform.d/plugin-cache
        echo "cache='${{ inputs.caching }}'" >> $GITHUB_OUTPUT
      shell: bash