image: debian/testing
packages:
    - pandoc
    - weasyprint
    - poppler-utils
sources:
    - https://git.sr.ht/~boringcactus/crowbar-spec
environment:
    files: "index vs-c tagged-unions types safety errors syntax LICENSE"
tasks:
    - build-html: |
        cd crowbar-spec
        i=0
        for file in $files
        do
            pandoc --defaults=etc/md.yml --number-offset=$i -o $file.html $file.md
            i=$((i+1))
        done
        tar czvf ../spec-html.tar.gz *.html
    - build-pdf: |
        cd crowbar-spec
        if git describe --tags --exact-match 2>/dev/null
        then
            metadata="subtitle=$(git describe --tags --exact-match)"
        else
            metadata="version=$(git log -1 --no-decorate --oneline)"
        fi
        pandoc --defaults=etc/pdf.yml -o ../spec.pdf -M "$metadata" $(echo $files | awk '{ for (i=1; i<=NF; i++) printf "%s.html ", $i }')
    - test-page-count: |
        pages=$(pdfinfo spec.pdf | grep Pages | awk '{ print $2 }')
        test $pages -le 200
artifacts:
    - spec.pdf
    - spec-html.tar.gz