Using SVN post-commit hook to update only files that have been commited

svn post-commit script

#!/bin/sh

REPOS="$1"
REV="$2"

# A - Item added to repository
# D - Item deleted from repository
# U - File contents changed
# _U - Properties of item changed; note the leading underscore
# UU - File contents and properties changed

# Files and directories can be distinguished, as directory paths are displayed with a trailing "/" character.

LOOK=/usr/local/svn/bin/svnlook
SVN=/usr/local/svn/bin/svn
DEV=/var/www/test

cd /location/to/your/svnrepo
  for changes in `$LOOK changed $REPOS | awk '{print $1 "=" $2;}'`;
  do
        len=${#changes}
        idx=`expr index "$changes" =`;
        directory=${changes:$idx};
        action=${changes:0:$idx-1};
        if [ ${changes:len-1} = '/' ]
        then
            case "$action" in
                "A" ) \
                    mkdir --mode=775 -p $DEV/$directory;
                    chown nobody:nobody $DEV/$directory;
                    chmod 775 $DEV/$directory;
                    ;;
                "D" ) \
                    rmdir $DEV/$directory;
                    ;;
            esac
        else
            case "$action" in
                "A"|"U"|"UU" ) \
                    $SVN export --force --non-interactive -r HEAD -q file://$REPOS/$directory;
                    BASE=`basename $directory`;
                    DIR=`dirname $directory`;
                    chown nobody:nobody $BASE;
                    chmod 775 $BASE;
                    mkdir --mode=775 -p $DEV/$DIR;
                    cp -f --preserve=ownership $BASE $DEV/$DIR;
                    unlink $BASE;
                    ;;
                "D" ) \
                    rm -f $DEV/$directory;
                    ;;
            esac
        fi
  done

exit 0