filter-files.yml

name: filter-files

on:
  pull_request:
    branches:
      - main

# hack for https://github.com/actions/cache/issues/810#issuecomment-1222550359
#env:
#  SEGMENT_DOWNLOAD_TIMEOUT_MIN: 3

jobs:
  files-changed:
    name: Detect what files changed
    if: contains(github.event.pull_request.labels.*.name, 'submission')  
    # if: ${{ github.event.label.name == 'submission' }}
    runs-on: ubuntu-20.04
    timeout-minutes: 3
    outputs:
      offendingfiles: ${{ steps.pythonfilter.outputs.offendingfiles }}

    steps:
    - name: Checkout code
      uses: actions/checkout@v3
    - uses: actions/setup-python@v4
      with:
        python-version: '3.10' 
    - run: pip install python-slugify pyyaml
    - uses: dorny/paths-filter@v2
      id: filter
      with:
        # Enable listing of files matching each filter.
        # Paths to files will be available in `${FILTER_NAME}_files` output variable.
        # Paths will be escaped and space-delimited.
        # Output is usable as command-line argument list in Linux shell
        list-files: shell
    
        # In this example changed files will be checked by linter.
        # It doesn't make sense to lint deleted files.
        # Therefore we specify we are only interested in added or modified files.
        filters: |
          changed:
            - '**'
    - name: Check label
      run: echo ${{ github.event.label.name }}
    - name: Save title slug
      run: echo "SLUG=`slugify ${{ github.event.pull_request.title }}`" >> $GITHUB_ENV
    - name: Print slug
      run: echo ${{env.SLUG}}
    - name: Check if changed files fit our filters
      id: pythonfilter
      if: ${{ steps.filter.outputs.changed == 'true' }}
      # todo read from step below
      run: |
        FILTEROUT=$(python3 bin/filterpaths.py $SLUG ${{ steps.filter.outputs.changed_files }} | tail -1)
        echo "offendingfiles=$FILTEROUT" >> $GITHUB_OUTPUT
        mkdir site_out
        python3 bin/filterpaths.py $SLUG ${{ steps.filter.outputs.changed_files }}
    #- uses: actions/github-script@v6
    #  if: always() && steps.pythonfilter.outcome == 'failure'
    #  with:
    #    script: |
    #      github.rest.issues.createComment({
    #        issue_number: context.issue.number,
    #        owner: context.repo.owner,
    #        repo: context.repo.repo,
    #        body: "⚠️ **We have detected a problem with your submission!** ⚠️\n\n${{ steps.pythonfilter.outputs.offendingfiles }}\n\nPlease make the aforementioned changes and re-submit :)"
    #      })
    - name: Setup Ruby
      if: always() && steps.pythonfilter.outcome == 'success'
      uses: ruby/setup-ruby@v1
      with:
        ruby-version: '3.0.2'
        bundler-cache: true
    - name: Install deps
      if: always() && steps.pythonfilter.outcome == 'success'
      run: |
        npm install -g mermaid.cli
    - name: Setup deploy options
      if: always() && steps.pythonfilter.outcome == 'success'
      id: setup
      run: |
        git config --global user.name "GitHub Action"
        git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"
        if [[ ${GITHUB_REF} = refs/pull/*/merge ]]; then # pull request
          echo "SRC_BRANCH=${GITHUB_HEAD_REF}" >> $GITHUB_OUTPUT
          echo "NO_PUSH=--no-push" >> $GITHUB_OUTPUT
        elif [[ ${GITHUB_REF} = refs/heads/* ]]; then # branch, e.g. master, source etc
          echo "SRC_BRANCH=${GITHUB_REF#refs/heads/}" >> $GITHUB_OUTPUT
        fi
        echo "DEPLOY_BRANCH=gh-pages" >> $GITHUB_OUTPUT
    - name: Build website 
      if: always() && steps.pythonfilter.outcome == 'success'
      run:  yes | bash bin/build --verbose ${{ steps.setup.outputs.NO_PUSH }}
                    --src ${{ steps.setup.outputs.SRC_BRANCH }} 
                    --deploy ${{ steps.setup.outputs.DEPLOY_BRANCH }} 
                    --slug ${{env.SLUG}}-${{ github.event.number }}
    - name: Save slug
      if: always()
      run: echo ${{env.SLUG}} > site_out/slug.txt
    - name: Save PR number
      if: always()
      env:
        PR_NUMBER: ${{ github.event.number }}
      run: echo $PR_NUMBER > site_out/pr_number.txt
    - name: Save filterout
      if: always()
      run: echo "${{ steps.pythonfilter.outputs.offendingfiles }}" > site_out/filterout.txt
    - uses: actions/upload-artifact@v2
      if: always()
      with: 
        name: website_out
        path: site_out