action.yml

name: 'List folders of path'
description: 'Get a json list of the folder listed in the specified folder'
inputs:
  path:
    description: 'Folder to list'
    required: true
  dir_name:
    type: boolean
    description: 'Whether to include the given path in the folders name or not'
    default: 'false'
  escape:
    type: boolean
    description: 'Whether the output JSON should be escaped or not'
    default: 'false'
  suffix:
    description: 'Suffix to add at each folders'
outputs:
  folders: # id of output
    description: 'A JSON formatted list of folders'
    value: ${{ steps.set-folders.outputs.folders }}
runs:
  using: 'composite'
  steps:
    - shell: bash
      run: |
        unameOut="$(uname -s)"
        case "${unameOut}" in
            Linux*)     machine=Linux;;
            Darwin*)    machine=Mac;;
            *)          machine="UNKNOWN:${unameOut}"
        esac

        echo ${machine}

        if [ "$machine" == "Mac" ]; then
            brew install tree jq
        elif [ "$machine" == "Linux" ]; then
            sudo apt-get update && sudo apt-get install tree jq -y
        fi
      
    - id: set-folders
      shell: bash
      run: |
        cd ${{ inputs.path }}
        folders=$(tree -J -d -L 1 | jq -c '.[0].contents | map("${{ inputs.dir_name && inputs.path || '' }}" + .name + "${{ inputs.suffix != '' && inputs.suffix || '' }}")' ${{ inputs.escape && ' | jq -R' || '' }})
        echo $folders
        echo "folders=$folders" >> $GITHUB_OUTPUT