Watches a directory for Markdown file (*.md) changes, and refreshes output formats (PDF, DOCX, RTF)

panda.sh

#!/bin/bash

#
# Panda
#
# Watches a directory for Markdown file (*.md) changes, and refreshes output formats (PDF, DOCX, RTF)
#

PANDOC=`/usr/bin/which pandoc`
PANDOC_IN=/tmp/pandoc/in/
PANDOC_OUT=/tmp/pandoc/out/

INOT=`/usr/bin/which inotifywait`

# Pandoc and inotifywait are required
if [ -z $PANDOC ]
then
	echo "Pandoc was not found on this system."
	exit 1
fi
if [ -z $INOT ]
then
	echo "inotifywait was not found on this system."
	exit 1
fi

# Create the input/output directories if they don't exits
mkdir -p $PANDOC_IN
mkdir -p $PANDOC_OUT


# Watch the input dir for file create, incoming moves and modifications
$INOT -m ${PANDOC_IN} -e create -e moved_to -e modify |
	while read path action file; do

		# Split the filename into two parts
		FILENAME="${file%.*}"
		EXT=${file##*.}

		IN=${path}${file}
		OUT=${PANDOC_OUT}${FILENAME}

		# We're only concerned with markdown docs, ending in .md
		if [ $EXT = "md" ]
		then
			echo "$path$file was modified by $action"
			echo "Producing outputs at ${OUT}.{docx,pdf,rtf}"
			$PANDOC -s -S "${IN}" -o "${OUT}.docx"
			$PANDOC -s -S "${IN}" -t latex -o "${OUT}.pdf"
			$PANDOC -s -S "${IN}" -o "${OUT}.rtf"
			echo "Done."
			echo "===================="
		fi
	done