#!/bin/bash

if [ $# -ge 2 ]; then
  URL=`svn info | gawk 'BEGIN {FS=": "} /URL/ {print $2}'`
  tmppath=/tmp/apmsc_HEAD
  tmppath1=/tmp/apmsc_PREV
  echo Compare revision PREV with repository HEAD
  svn co -r$1 $URL ${tmppath1}
  svn co -r$2 $URL ${tmppath}
  latexdiff --encoding=latin2 --flatten ${tmppath1}/main.tex ${tmppath}/main.tex > diff.tex
  pdflatex diff.tex
  pdflatex diff.tex
else
  echo compare workink copy with repository HEAD
  URL=`svn info | gawk 'BEGIN {FS=": "} /URL/ {print $2}'`
  REVISION=`svn info | gawk 'BEGIN {FS=": "} /Revision/ {print $2}'`
  tmppath=/tmp/apmsc_DIFF
  echo $tmppath
  svn co -rHEAD $URL ${tmppath}
  latexdiff --encoding=latin2 --flatten ${tmppath}/main.tex main.tex > diff.tex
  pdflatex diff.tex
  pdflatex diff.tex
fi
