markdown_to_pdf.sh

#!/bin/sh
pdf_stylesheet="/Users/dkirschner/dev/mapr/apache_spark/ebook/spark-book-theme/pdf/pdf.css"
theme_stylesheet="/Users/dkirschner/dev/mapr/apache_spark/ebook/spark-ebook/theme/pdf/pdf.css"
print_stylesheet="/Users/dkirschner/dev/mapr/apache_spark/ebook/spark-book-theme/pdf/pdf_print.css"

USAGE="Usage: -f input file with either md or html file ending, -o optional output file with pdf ending, -p anything here will turn on print mode, -? or -h prints usage"

while getopts “ht:f:o:p” OPTION
do
  case $OPTION in
    h)
      echo $USAGE
      exit 1
      ;;
    f)
      file=$OPTARG
      ;;
    o)
      output=$OPTARG
      ;;
    p)
      PRINT=1
      ;;
    ?)
      echo $USAGE
      exit
      ;;
  esac
done

if [[ -z $file ]] 
then
  echo $USAGE
  exit 1
fi

# Check ending. If markdown, convert to html using pandoc. If html, convert html directly to pdf using prince.

ending=`echo ${file##*.}`
echo "ending is $ending"

if [ $ending == "md" ]
then
  # convert supplied markdown file to html using prince

  # convert markdown to html
  html=$(echo "$file" | sed 's/\.md/\.html/')

  echo "converting markdown to html file which will be $html..."

  `pandoc $file -o $html`
  remove=1
elif  [ $ending = "html" ]; then
  html=$file
else
  echo $USAGE
  exit 1
fi

# if didn't specify output, just use input file name with pdf ending

if [[ -z $output ]]; then
  pdf=$(echo "$html" | sed 's/html/pdf/')
else
  pdf=$output
fi

echo "converting html to pdf which will be $pdf"

# convert html to pdf

if [ -z $PRINT ]; then
  echo "generating web version of pdf..."
  prince $html -o $pdf -s $pdf_stylesheet -s $theme_stylesheet
else
  echo "generating print version of pdf..."  
  prince $html -o $pdf -s $pdf_stylesheet -s $theme_stylesheet -s $print_stylesheet
fi

if [[ $remove == "1" ]]; then
  # remove the html file we generated earlier
  rm $html
fi