jekyll.yml

name: Jekyll site CI

on:
  push:
    branches:
      - master
  pull_request:
    types: [opened, synchronize]

jobs:
  episode:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3
    - name: Dates are valid
      run: |
        pip install pytz ciso8601
        for episode in _episodes/*/*.md; do
          date=$(grep 'date:' "$episode" | head -n1 | sed 's/^date: //')
          if ! python -c "import ciso8601; ciso8601.parse_rfc3339('$date');"; then
            echo "$episode: bad date '$date'"
            exit 1
          fi
        done
    - name: File size specifications are correct
      run: |
        for episode in _episodes/*/*.md; do
          length=$(grep 'length:' "$episode" | head -n1 | awk '{print $2}' | sed 's/"//g')
          file=$(grep 'file:' "$episode" | head -n1 | sed -e 's/^file: //' -e 's/"//g')
          size=$(curl --head -f -s "$file" | grep content-length | awk '{print $2}' | sed 's/\r//')
          if [ -z $size ]; then
            echo "couldn't get content length of \"$file\""
            exit 1
          fi
          if [ $size -ne $length ]; then
            echo "$(basename "$episode"): ${length}b (reported) != ${size}b (actual)"
            exit 1
          fi
        done
    - name: No duplicate URLs
      run: |
        for episode in _episodes/*/*.md; do
          file=$(grep 'file:' "$episode" | head -n1 | sed -e 's/^file: //' -e 's/"//g')
          n=$(grep -F "$file" -l _episodes/*/*.md | wc -l)
          if [[ $n -gt 1 ]]; then
            echo "$episode: shares file with other episodes:"
            grep -F "$file" -l _episodes/*/*.md | grep -vF "$episode"
            exit 1
          fi
        done
    - name: No duplicate slugs
      # For collections, jekyll _only_ uses the basename (without date) of each
      # post for the slug, and doesn't error on duplicates. So we must check.
      run: |
        for episode in _episodes/*/*.md; do
          slug="$(basename "$episode" | sed 's/^[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]-//')"
          files=(_episodes/*/????-??-??-$slug)
          if [[ "${#files[@]}" -gt 1 ]]; then
            echo "Duplicate slugs found: ${files[*]}"
            exit 1
          fi
        done
  transcript:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3
    - name: Transcripts match episodes
      run: |
        for transcript in _transcripts/*/*.md; do
          episode="_episodes/$(basename "$(dirname "$transcript")")/$(basename "$transcript")"
          if [[ ! -e $episode ]]; then
            echo "$transcript: no matching episode"
            exit 1
          fi
        done
  feed:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3
    - uses: ruby/setup-ruby@v1
      with:
        ruby-version: '2.7'
        bundler-cache: true
    - name: Install dependencies
      run: bundle install
    - name: Build site and feed
      run: |
        # have site.url produce a valid value
        sed -i -e '/^collections:/i \
        url: https://rustacean-station.org' \
               _config.yml
        bundle exec jekyll build
    - name: Grab feed validator
      run: |
        git clone https://github.com/w3c/feedvalidator.git
    - uses: actions/setup-python@v4
      with:
        python-version: '3.x'
        cache: 'pip'
    - name: Validate feed
      run: |
        # Fix Ubuntu MIME type for RSS
        sudo sed -i 's@application/x-rss+xml@application/rss+xml@' /etc/mime.types
        cp _site/podcast.rss validate.rss
        # https://github.com/rubys/feedvalidator/issues/16
        sed -i -e 's/https:/http:/g' \
               -e '/rel="self"/ s@href="[^"]*"@href="file://'"$(pwd)"'/validate.rss"@' \
               -e '/xmlns:content/a \
                    xml:base="https://rustacean-station.org"' \
               validate.rss
        cd feedvalidator
        pip install -r requirements.txt
        if ! python src/demo.py ../validate.rss; then
          cat ../validate.rss
          exit 1
        fi