inotify script for mm-book LaTeX build

watch.sh

#!/bin/bash
set -e; set -o pipefail

# Thanks to https://stackoverflow.com/a/246128
SCRIPT_DIR="$( cd -- "$( dirname -- "${BASH_SOURCE[0]:-$0}"; )" &> /dev/null && pwd 2> /dev/null; )"
cd ${SCRIPT_DIR}

[[ -z $1 ]] || ${SCRIPT_DIR}/build.sh $1

# Now watch for file changes.
inotifywait -r -m chapters/ book.tex -e close_write 2>/dev/null |
	while read directory action file; do
		# If not in directory (e.g. book.tex) then first
		# field is the filename.
		[[ -n "$file" ]] || file=$directory

		[[ "$file" =~ .tex$ ]] || continue

		if  [[ "$file" =~ ^shared ]]; then
			${SCRIPT_DIR}/build-all.sh quick || true
			continue
		fi

		if [[ "$file" =~ -chap.tex$ ]]; then
			file=${file%"-chap.tex"}.tex
		fi

		quick=quick
		if [[ "$file" =~ ^book ]]; then
			unset quick
		fi

		./build.sh "${file%.*}" $quick || true
		# Hit r in mupdf to refresh.
		xdotool search --class Mupdf windowactivate --sync %1 \
			key r windowactivate $(xdotool getactivewindow) || true
	done