action.yml

name: Deploy preview
description: Deploy preview environments for static apps using GitHub Pages

inputs:
  branch:
    description: The branch from where the GitHub Pages are served (defaults to preview-env)
    required: true
    default: 'preview-env'
  folder:
    description: The folder where the artifacts to publish are (defaults to the project root)
    required: true
    default: '.'

runs:
  using: composite
  steps:
    - name: Generate slug
      id: generate_slug
      run: echo "##[set-output name=slug;]$(echo ${GITHUB_HEAD_REF#refs/heads/})"
      shell: bash
    - name: Determine base URL
      id: determine_base_url
      run: echo "##[set-output name=base_url;]$(echo $GITHUB_REPOSITORY | sed 's/\//.github.io\//')"
      shell: bash
    - name: Deploy
      uses: JamesIves/github-pages-deploy-action@4.1.1
      with:
        branch: ${{ inputs.branch }}
        folder: ${{ inputs.folder }}
        target-folder: ${{ steps.generate_slug.outputs.slug }}
    - name: Publish env
      uses: marocchino/sticky-pull-request-comment@v2
      with:
        header: Preview environment
        message: |
          ## Preview environment
          https://${{ steps.determine_base_url.outputs.base_url }}/${{ steps.generate_slug.outputs.slug }}/