Pandoc watch script

watch.sh

#!/bin/bash

FORMAT=$1
DOCUMENT=$2

livereload "$DOCUMENT.html" -d -w 200 &
LIVERELOAD=$!

http-server . &
HTTP_SERVER=$!

trap ctrl_c INT
function ctrl_c() {
  kill "$LIVERELOAD"
  kill "$HTTP_SERVER"
}

while inotifywait -e close_write "$DOCUMENT.md"; do
  case "$FORMAT" in
    pdf)
      pandoc -s -S -f markdown --latex-engine=xelatex \
        --filter scripts/pandoc-filter-include.py \
        --filter scripts/pandoc-filter-format.py \
        --filter scripts/pandoc-filter-graphviz.py \
        --filter scripts/pandoc-filter-plantuml.py \
        -o "$DOCUMENT.pdf" \
        "$DOCUMENT.md"
      ;;

    presentation)
      pandoc --section-divs -t revealjs -s -S -f markdown \
        --filter scripts/pandoc-filter-include.py \
        --filter scripts/pandoc-filter-format.py \
        --filter scripts/pandoc-filter-graphviz.py \
        --filter scripts/pandoc-filter-plantuml.py \
        --css="assets/reveal.css" \
        -o "$DOCUMENT.html" \
        "$DOCUMENT.md"
      ;;

    html)
      pandoc -s -S -t html5 -f markdown \
        --filter scripts/pandoc-filter-include.py \
        --filter scripts/pandoc-filter-format.py \
        --filter scripts/pandoc-filter-graphviz.py \
        --filter scripts/pandoc-filter-plantuml.py \
        -o "$DOCUMENT.html" \
        "$DOCUMENT.md"
      ;;

    *)
        echo $"Usage: $0 {pdf|presentation|html} <file>"
        exit 1
  esac
done