pull_request.yml

# Candace Savonen 2021
# Updated Jan 2023

name: Pull Request

on:
  pull_request:
    branches: [ main, staging ]

jobs:

  yaml-check:
    name: Load user automation choices
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.GH_PAT }}

        # Use the yaml-env-action action.
      - name: Load environment from YAML
        uses: doughepi/yaml-env-action@v1.0.0
        with:
            files: config_automation.yml # Pass a space-separated list of configuration files. Rightmost files take precedence.

      # Delete the branch if this has been run before
      - name: Delete branch locally and remotely
        run: git push origin --delete preview-${{ github.event.pull_request.number }} || echo "No branch to delete"

      # Make the branch fresh
      - name: Make the branch fresh
        run: |
          git config --global --add safe.directory $GITHUB_WORKSPACE
          git config --global user.name 'github-actions[bot]'
          git config --global user.email 'github-actions[bot]@users.noreply.github.com'

          branch_name='preview-${{ github.event.pull_request.number }}'
          echo branch doesnt exist
          git checkout -b $branch_name || echo branch exists
          git push --set-upstream origin $branch_name || echo echo branch exists remotely
        shell: bash


    outputs:
      toggle_spell_check: "${{ env.SPELL_CHECK }}"
      toggle_style_code: "${{ env.STYLE_CODE }}"
      toggle_url_check: "${{ env.URL_CHECKER }}"
      toggle_quiz_check: "${{ env.CHECK_QUIZZES }}"
      toggle_render_preview: "${{ env.RENDER_PREVIEW }}"
      rendering_docker_image: "${{ env.RENDERING_DOCKER_IMAGE }}"

########################## Make the error reports ##############################
  spell-check:
    name: Check spelling
    needs: yaml-check
    if: ${{needs.yaml-check.outputs.toggle_spell_check == 'yes'}}
    uses: jhudsl/ottr-reports/.github/workflows/report-maker.yml@main
    with:
      check_type: spelling
      error_min: 3
      gh_pat: secrets.GH_PAT
      branch_name: ${GITHUB_HEAD_REF}

  url-check:
    name: Check URLs
    needs: yaml-check
    if: ${{needs.yaml-check.outputs.toggle_url_check == 'yes'}}
    uses: jhudsl/ottr-reports/.github/workflows/report-maker.yml@main
    with:
      check_type: urls
      error_min: 0
      gh_pat: secrets.GH_PAT
      branch_name: ${GITHUB_HEAD_REF}

  quiz-check:
    name: Check quiz formatting
    if: ${{needs.yaml-check.outputs.toggle_quiz_check == 'yes'}}
    needs: yaml-check
    uses: jhudsl/ottr-reports/.github/workflows/report-maker.yml@main
    with:
      check_type: quiz_format
      error_min: 0
      gh_pat: secrets.GH_PAT
      branch_name: ${GITHUB_HEAD_REF}

############################# Style the code ###################################
  style-code:
    name: Style code
    needs: yaml-check
    runs-on: ubuntu-latest
    if: ${{needs.yaml-check.outputs.toggle_style_code == 'yes'}}
    container:
      image: jhudsl/base_ottr:main

    steps:
      - name: Checkout files
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Run styler
        run: Rscript -e "styler::style_file(list.files(pattern = 'Rmd$', recursive = TRUE, full.names = TRUE));warnings()"

      - name: Commit styled files
        run: |
          git config --system --add safe.directory "$GITHUB_WORKSPACE"
          git add \*.Rmd
          git commit -m 'Style Rmds' || echo "No changes to commit"
          git push origin || echo "No changes to commit"

############################# Render Preview ###################################

  render-preview:
    name: Render preview
    needs: yaml-check
    runs-on: ubuntu-latest
    container:
      image: ${{needs.yaml-check.outputs.rendering_docker_image}}
    if: ${{needs.yaml-check.outputs.toggle_render_preview == 'yes'}}

    steps:
      - name: Checkout files
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      # Set up git checkout
      - name: Set up git checkout
        run: |
          git config --global --add safe.directory $GITHUB_WORKSPACE
          git config --global user.name 'github-actions[bot]'
          git config --global user.email 'github-actions[bot]@users.noreply.github.com'

          branch_name='preview-${{ github.event.pull_request.number }}'
          git fetch --all
          git checkout $branch_name
          git merge -s recursive --strategy-option=theirs origin/${{ github.head_ref }} --allow-unrelated-histories
        shell: bash

      # Make sure the link for AnVIL feedback is prepopulated for the specific course
      - name: Set up feedback link
        id: feedback
        run: bash scripts/AnVIL_Feedback_Script.sh

      # Run bookdown rendering
      - name: Run bookdown render
        id: bookdown
        run: Rscript -e "bookdown::render_book('index.Rmd', output_format = 'all')"

      # Render a student guide if specified. This is a bit clunky because
      # Bookdown does not work well if the files aren't named as such in the
      # root directory
      - name: Run student guide render
        if: ${{needs.yaml-check.outputs.render_student_guide == 'yes'}}
        id: student_guide
        run: |
          mkdir tmp1
          mv _bookdown.yml _output.yml tmp1
          mv student-guide/_bookdown.yml student-guide/_output.yml .
          Rscript -e "bookdown::render_book('index.Rmd', output_format = 'all')"
          mv _bookdown.yml _output.yml student-guide
          mv tmp1/_bookdown.yml tmp1/_output.yml .
          rm -r tmp1
          
      # Run TOC-less version
      # Rendered content for Leanpub and Coursera is very similar.
      # This job creates a shared scaffold for both.
      - name: Run TOC-less version of render
        id: tocless
        run: Rscript -e "ottrpal::render_without_toc()"

      # This checks on the steps before it and makes sure that they completed.
      # If the renders didn't complete we don't want to commit the file changes
      - name: Check on render steps
        if: steps.bookdown.outcome != 'success' || steps.tocless.outcome != 'success'
        run: |
          echo Bookdown status ${{steps.bookdown.outcome}}
          echo Toc-less status ${{steps.tocless.outcome}}
          exit 1

      - name: Website preview for download
        run: zip website-preview.zip docs/* -r

      # Commit the rendered bookdown files
      - name: Commit rendered bookdown files to preview branch
        id: commit
        run: |
          branch_name='preview-${{ github.event.pull_request.number }}'
          git diff origin/main -- docs >/dev/null && changes=true || changes=false
          echo "changes=$changes" >> $GITHUB_OUTPUT
          git add . --force
          git commit -m 'Render preview' || echo "No changes to commit"
          git pull --rebase --set-upstream origin $branch_name --allow-unrelated-histories --strategy-option=ours
          git push --force || echo "No changes to commit"
        shell: bash

      - name: Find Comment
        uses: peter-evans/find-comment@v2
        id: fc
        with:
          issue-number: ${{ github.event.pull_request.number }}
          comment-author: 'github-actions[bot]'
          body-includes: latest commit

      - name: Build components of the comment
        id: build-components
        run: |
          course_name=$(head -n 1 student-guide/_bookdown.yml | cut -d'"' -f 2| tr " " "-")
          bookdown_link=$(echo "https://htmlpreview.github.io/?https://raw.githubusercontent.com/$GITHUB_REPOSITORY/preview-${{ github.event.pull_request.number }}/docs/index.html")
          tocless_link=$(echo "https://htmlpreview.github.io/?https://raw.githubusercontent.com/$GITHUB_REPOSITORY/preview-${{ github.event.pull_request.number }}/docs/no_toc/index.html")
          student_docx_link=$(echo "https://github.com/$GITHUB_REPOSITORY/raw/preview-${{ github.event.pull_request.number }}/student-guide/$course_name.docx")          zip_link=$(echo "https://github.com/$GITHUB_REPOSITORY/raw/preview-${{ github.event.pull_request.number }}/website-preview.zip")
          echo "zip_link=$zip_link" >> $GITHUB_OUTPUT
          echo "bookdown_link=$bookdown_link" >> $GITHUB_OUTPUT
          echo "tocless_link=$tocless_link" >> $GITHUB_OUTPUT
          echo "student_docx_link=$student_docx_link" >> $GITHUB_OUTPUT
          echo "time=$(date +'%Y-%m-%d')" >> $GITHUB_OUTPUT
          echo "commit_id=$GITHUB_SHA" >> $GITHUB_OUTPUT
          echo ${{steps.commit.outputs.changes}}

      - name: Create or update comment
        if: steps.commit.outputs.changes == 'true'
        uses: peter-evans/create-or-update-comment@v2
        with:
          comment-id: ${{ steps.fc.outputs.comment-id }}
          issue-number: ${{ github.event.pull_request.number }}
          body: |
            Re-rendered previews from the latest commit:
            - :eyes: Quick [preview of course website here](${{ steps.build-components.outputs.bookdown_link }}) \*
            - :microscope: Comprehensive [download of the course website here](${{ steps.build-components.outputs.zip_link }})
            - Download the [.docx file](${{ steps.build-components.outputs.docx_link }})

            \* note not all html features will be properly displayed in the "quick preview" but it will give you a rough idea.

            _Updated at ${{ steps.build-components.outputs.time }} with changes from the latest commit ${{ steps.build-components.outputs.commit_id }}_
          edit-mode: replace

      - name: Comment if no changes
        if: steps.commit.outputs.changes == 'false'
        uses: peter-evans/create-or-update-comment@v2
        with:
          comment-id: ${{ steps.fc.outputs.comment-id }}
          issue-number: ${{ github.event.pull_request.number }}
          body: |
            The latest commit did not produce rendering changes.

            _Updated at ${{ steps.build-components.outputs.time }} with changes from ${{ steps.build-components.outputs.commit_id }}_
          edit-mode: replace