Custom pdflatex/lilypond script

#!/bin/bash
#     Copyright © 2013 by Kyle Baldwin. All rights reserved.
#
#     This program is free software: you can redistribute it and/or modify
#     it under the terms of the GNU General Public License as published by
#     the Free Software Foundation, either version 3 of the License, or
#     (at your option) any later version.
#
#     This program is distributed in the hope that it will be useful,
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#     GNU General Public License for more details.
#
#     You should have received a copy of the GNU General Public License
#     along with this program.  If not, see <http://www.gnu.org/licenses/>.
############################################################################
#
#   Current Version:        0.1
#   Release Date:           2013-04-13
#
#
#   What does this engine do?
#       This engine automates the process of building .pdf files when both
#       lilypond-book and latexmk are being used.
#
#   Great, What do I need to know?
#       Currently, this script only works if both lilypond-book and latexmk
#       are in your bash $PATH. The all of the non-essential files are created
#       in the folder '/tmp/lily_dump' (default) so that they don't clutter the main
#       directory and you never have to worry about cleaning them up.
#
#   Cool, so who can use this?
#       I use OS X, but since I'm making this script without absolute paths to
#       the binaries, it is very possible that this could be ported very easily
#       to any Unix based system.  However, this was written with TeXShop in mind
#       which is only for OSX.
#
#   Rad, Anything else?
#       Yes.  A lot of the little bits that make this script work I took from
#       Nicola Vitacolonna's Lilypond/LaTeX script for TeXShop.  I would like to
#       Send out a "Thank you!" for your work with this.  Her website where her
#       script, and many other useful programs, can be found at:
#       http://users.dimi.uniud.it/~nicola.vitacolonna/home/
#
#   Do I need to set any options?
#       Generally, No.  If you do, they are the ones just below marked "Change These."

###############################################
##                        Change These              #####
###############################################
## The directory where the output files are put.
tmpDir="/tmp/lily_dump"
backUpDir="/Volumes/BACKUP"
##Rsync options

cp_opt="-avzP"


# Get some information for later.
# Get the basename of the file
baseName=${1%.*}
# Get the current directory
curPWD="$(pwd)"


#Create backup of files first
if [ -d "$backUpDir" ]; then
  eval rsync "$cp_opt --filter 'exclude .*'" ./ "$backUpDir/$baseName"
fi

# Create folder in tmp if it doesn't exist
if [ -d "$tmpDir" ]; then
    echo "$tmpDir appears to exist..."
else
    mkdir "$tmpDir"
fi




#Now Start processing the document.
# Run Lilypond-Book. Absolute path is needed.

eval /Applications/LilyPond.app/Contents/Resources/bin/lilypond-book --pdf -o "$tmpDir $1"

# Copy other files and directories into working directory such as .bib
# Exclude the current pdf file in main directory
# Exclude all source files as they should be transfered by lilypond-book
declare -a exFiles=($baseName'.pdf' '*.tex' '*.ly' '*.texly' '.*')



# Create the filter string of files to exclude
for e in "${exFiles[@]}"
do
    if [ -n "$filter" ]; then
        filter="$filter --filter 'exclude $e'"
    else
        filter="--filter 'exclude $e'"
    fi
done
# Run rsync to copy files.

eval rsync "$cp_opt" "$filter" ./ "$tmpDir"

cd "$tmpDir"

# Run the final typesetting commands
pdflatex "$tmpDir/$baseName.tex"
biber "$tmpDir/$baseName"
pdflatex "$tmpDir/$baseName.tex"
pdflatex "$tmpDir/$baseName.tex"

#Move the completed pdf Back to the original directory
eval cp -f "$tmpDir"/$baseName.pdf \'$curPWD\'

echo "Done."