Markdown to HTML to PDF

letter.sh

#!/bin/bash

DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

sourcefile=$1
if [ -z $1 ] ; then
  if ! [ -f $DIR/letter.md ]; then
    echo 'You must set up your letter as `letter.md` or specify a file name.'
    exit 1;
  fi
  sourcefile="$DIR/letter.md"
elif ! [ -f $1 ]; then
  echo "No file can be found at $1."
  exit 1;
fi

ts=`date +%s`
filename=letter-$ts
i=0
while [ -f /tmp/$filename.pdf ]; do
  filename="letter-$ts-$i"
  i=$[$i+1]
done

cat $DIR/resources/header.md $sourcefile | pandoc -f markdown -s -t html -o $DIR/.lettergen.html
smartypants $DIR/.lettergen.html > $DIR/.lettergen.smart.html
weasyprint $DIR/.lettergen.smart.html /tmp/$filename.pdf
rm $DIR/.lettergen.*html
/usr/bin/env xdg-open /tmp/$filename.pdf