action.yml

name: 'Preview environment controller'
description: 'Action to manage to deploy and purge preview environments depends on PR labels'
author: hello@cloudposse.com
branding:
  icon: 'layers'
  color: 'white'
inputs:
  env-label:
    description: "YAML formatted {environment}: {label} map "
    required: true
    default: |
      preview: deploy
  labels:
    description: Existing PR labels
    required: true
    default: "[]"
  open:
    required: true
    description: "Is PR open?"
    default: "true"
outputs:
  labels_env:
    description: "JSON formatted {label}: {environment} map"
    value: ${{ steps.yaml2json.outputs.output }}
  deploy_envs:
    description: "Environments that need to be deployed"
    value: ${{ steps.deploy_envs.outputs.output }}
  destroy_envs:
    description: "Environments that need to be destroyed"
    value: ${{ steps.destroy_envs.outputs.output }}
runs:
  using: "composite"
  steps:
    - uses: 1arp/create-a-file-action@0.3
      with:
        path: './'
        file: 'labels_env.yaml'
        content: ${{ inputs.env-label }}

    - uses: fabasoad/data-format-converter-action@64006df7988ff8c87b38e53fcaf5843d4fe340cc # > v0.2.1
      id: yaml2json
      with:
        input: 'labels_env.yaml'
        from: 'yaml'
        to: 'json'

    - id: pattern
      shell: bash
      run: |
        if [ "${{ inputs.open }}" == "true" ]
        then
          echo "deploy=with_entries(select(.value | IN({0}[]))) | keys" >> $GITHUB_OUTPUT
          echo "destroy=with_entries(select(.value | IN({0}[]) | not )) | keys" >> $GITHUB_OUTPUT
        else
          echo "deploy=[]" >> $GITHUB_OUTPUT
          echo "destroy=with_entries(select(.value | IN({0}[]))) | keys" >> $GITHUB_OUTPUT
        fi

    - name: 'Install jq 1.6'
      uses: dcarbone/install-jq-action@v2.1.0
      with:
        version: 1.6
        force: 'true'

    - uses: cloudposse/github-action-jq@0.4.0
      id: deploy_envs
      with:
        compact: true
        input: ${{ steps.yaml2json.outputs.output }}
        script: ${{ format(steps.pattern.outputs.deploy, inputs.labels) }}

    - uses: cloudposse/github-action-jq@0.4.0
      id: destroy_envs
      with:
        compact: true
        input: ${{ steps.yaml2json.outputs.output }}
        script: ${{ format(steps.pattern.outputs.destroy, inputs.labels) }}