on-pull-request.yml

on: pull_request

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

defaults:
  run:
    shell: bash -l {0}

jobs:
  pre-commit:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - uses: actions/setup-python@v5
      with:
        python-version: 3.x
    - uses: pre-commit/action@v3.0.1

  build-book:
    runs-on: ubuntu-latest
    needs: pre-commit
    steps:
    - uses: actions/checkout@v4
    - uses: actions/setup-python@v5
      with:
        python-version: 3.x
    - name: Get changed notebooks
      id: changed-files
      uses: tj-actions/changed-files@v44
      with:
        files: |
          **.ipynb
    - name: Build permalinks
      id: build-permalinks
      env:
        ALL_CHANGED_FILES: ${{ steps.changed-files.outputs.all_changed_files }}
      run: |-
        permalinks="<ul>"
        for fullfile in ${ALL_CHANGED_FILES}; do
            commit=$(git rev-list -1 HEAD "$fullfile")
            suffix="${fullfile//\\&/%26}"
            url=${{ github.server_url }}/${{ github.repository }}/blob/$commit/$suffix
            permalinks+="<li><a href=\"$url\">$url</a></li>"
        done
        permalinks+="</ul>"
        echo "permalinks=$permalinks" >>"$GITHUB_OUTPUT"
    - name: Comment PR with permalinks
      uses: thollander/actions-comment-pull-request@v2
      with:
        message: |
          **Permalinks:**
          ${{ steps.build-permalinks.outputs.permalinks }}
        comment_tag: permalinks
    - name: Checkout book repo
      uses: actions/checkout@v4
      with:
        repository: ecmwf-projects/c3s_eqc_book_main
        path: book
    - name: Install jupyter-book
      run: |
        python -m pip install jupyter-book
    - name: Build pages
      env:
        ALL_CHANGED_FILES: ${{ steps.changed-files.outputs.all_changed_files }}
      run: |-
        mkdir book_preview || exit
        cd book/c3s_eqc_quality_assessments || exit        
        for fullfile in ${ALL_CHANGED_FILES}; do
            filename=$(basename -- "$fullfile")
            prefix="${filename%.*}"
            cp ../../"$fullfile" "$filename" || exit
            python ../../scripts/disembed-figures.py "$filename" || exit
            jupyter-book build "$filename" || exit
            mv _build/_page/"$prefix"/html ../../book_preview/"$prefix" || exit
            rm -fr _build
        done
    - uses: actions/upload-artifact@v4
      id: upload-artifact
      with:
        name: book-preview
        path: book_preview/*
    - name: Comment PR with book preview url
      uses: thollander/actions-comment-pull-request@v2
      with:
        message: |
          **Jupyter Book Preview:** ${{ steps.upload-artifact.outputs.artifact-url }}
        comment_tag: artifact-url