name: Changed files
description: Get all changed files
author: tj-actions
inputs:
  token:
    description: 'Github token'
    required: true
    default: ${{ github.token }}
  separator:
    description: 'Split character for array output'
    required: true
    default: " "
  files-from-source-file:
    description: 'Source file to populate the files input'
    required: false
    default: ""
  files:
    description: 'Check for changes using only this list of files (Defaults to the entire repo)'
    required: false
    default: ""
  sha:
    description: 'Specify a different commit SHA used for comparing changes'
    required: true
    default: ${{ github.sha }}

outputs:
  added_files:
    description: List of added files.
    value: ${{ steps.changed-files.outputs.added_files }}
  copied_files:
    description: List of copied files.
    value: ${{ steps.changed-files.outputs.copied_files }}
  deleted_files:
    description: List of deleted files.
    value: ${{ steps.changed-files.outputs.deleted_files }}
  modified_files:
    description: List of modified files.
    value: ${{ steps.changed-files.outputs.modified_files }}
  renamed_files:
    description: List of renamed files.
    value: ${{ steps.changed-files.outputs.renamed_files }}
  type_changed_files:
    description: List of files that had type changes.
    value: ${{ steps.changed-files.outputs.type_changed_files }}
  unmerged_files:
    description: List of unmerged files.
    value: ${{ steps.changed-files.outputs.unmerged_files }}
  unknown_files:
    description: List of unknown files.
    value: ${{ steps.changed-files.outputs.unknown_files }}
  all_changed_files:
    description: List of all changed files.
    value: ${{ steps.changed-files.outputs.all_changed_files }}
  all_modified_files:
    description: List of all copied modified and added files.
    value: ${{ steps.changed-files.outputs.all_modified_files }}
  any_changed:
    description: Return true only when any files provided using the files input have changed.
    value: ${{ steps.changed-files.outputs.any_changed }}

runs:
  using: 'composite'
  steps:
    - run: |
        FILES=()

        if [[ -n $INPUT_FILES_FROM_SOURCE_FILE ]]; then
          for file in $INPUT_FILES_FROM_SOURCE_FILE
          do
            FILES+=$(cat $file | sort -u | tr "\n" " " )
          done
        fi

        echo "::set-output name=files::$FILES"
      id: source-input-files
      shell: bash
      env:
        INPUT_FILES: ${{ inputs.files }}
        INPUT_FILES_FROM_SOURCE_FILE: ${{ inputs.files-from-source-file }}
    - run: |
        bash $GITHUB_ACTION_PATH/entrypoint.sh
      id: changed-files
      shell: bash
      env:
        GITHUB_BASE_REF: ${{ github.base_ref }}
        GITHUB_REPOSITORY: ${{ github.repository }}
        # INPUT_<VARIABLE_NAME> is not available in Composite run steps
        # https://github.community/t/input-variable-name-is-not-available-in-composite-run-steps/127611
        INPUT_SHA: ${{ inputs.sha }}
        INPUT_TOKEN: ${{ inputs.token }}
        INPUT_FILES: ${{ join(format('{0} {1}', inputs.files, steps.source-input-files.outputs.files), ' ') }}
        INPUT_SEPARATOR: ${{ inputs.separator }}

branding:
  icon: file-text
  color: white