mkpdf

#!/usr/bin/env bash

# Assign help text to variable for user later
HELP="Usage: mkpdf [SRC PRESENTATION] [DST PDF]"
NUMPARAMS="Error: Incorrect number of parameters"

# Assign variables to phantomjs and decktape.js locations;
# adjust for your specific installation
PHANTOMJS="/opt/decktape/phantomjs --ignore-ssl-errors=true"
DECKTAPE="/opt/decktape/decktape.js"

# If the user supplied no parameters, then provide help text
if [ "$#" -eq 0 ]; then
    echo $NUMPARAMS
    echo
    echo $HELP
    echo
    exit
fi

# If the user supplied "--help", then provide help text
if [ "$1" = "--help" ]; then
    echo $HELP
    echo
    exit
fi

# If the user supplied no parameters, then provide help text
if [ "$#" -ne 2 ]; then
    echo $NUMPARAMS
    echo
    echo $HELP
    echo
    exit
fi

# Check that source exists and is a normal file
# Display error message otherwise
if [ ! -f "$1" ]; then
    echo "Error: Invalid source file supplied"
    echo
    exit
fi

# Check that destination does not already exist
if [ -f "$2" ]; then
    echo "Error: Destination file already exists"
    echo
    exit
fi

# Assign parameters to variables
SRC="$1"
DST="$2"

# Use decktape to convert remark.js presentation to PDF
$PHANTOMJS $DECKTAPE remark "$SRC" "$DST"