#!/bin/bash
# itnobody.com

# Run this script as a user who can move drupal files
# This script should be run after a successful installation
# Running this script merely reduces the footprint of cookie-cutter drupal files
# and adds a few knick knacks to quiet down the signature of being a drupal site

# Things this script does:
# Create a 'backup' directory: DRUPAL_CLEAN-mo-day-yearThourminute
# Rename cron.php to hostname.cron.php
# Move all .txt files to backup dir
# Move web.config to backup dir
# Move scripts dir to backup dir
# Move profile dir to backup dir
# Move install.php to backup dir
# Move example sites files to backup dir
# Suppress generator tag in all themes (Unless a header tag override is already in place) 

PA=$1;

if [ ! "$PA" ]; then
	read -p "Enter full path to drupal to clean:  " PA
fi

if [ ! -d "$PA" ]; then
	echo $PA" does not exist"
	exit 1
fi

CLEANMATCH="/bin/find $PA/ -name '*.txt' ! -path '$PA/DRUPAL_CLEAN-*' -print0"
CLEANDIR="DRUPAL_CLEAN-"`date +%m-%d-%yT%H%M`

echo "Backing up the listed files, will be placed in a a new directory '$CLEANDIR' in $PA"

mkdir "$PA/$CLEANDIR"

echo "Moving files ... ($CLEANMATCH) "

eval "$CLEANMATCH -exec mv {} $PA/$CLEANDIR \;"

echo " ... "

if [ -f "$PA/web.config" ]; then
	echo "!!! Found web.config - moving !!!"
	mv $PA/web.config $PA/$CLEANDIR/
fi

echo " ... "

if [ -d "$PA/scripts" ]; then
	echo "!!! Found /scripts/ dir - moving !!!"
	mv $PA/scripts $PA/$CLEANDIR/
fi

echo " ... "

if [ -f "$PA/cron.php" ]; then
	echo "!!! cron.php found, renaming to "$HOSTNAME".cron.php !!!"
	mv $PA/cron.php $PA/$HOSTNAME.cron.php
fi

echo " ... "

if [ -f "$PA/install.php" ]; then
	echo "!!! install.php found, moving to $PA/$CLEANDIR !!!"
	mv $PA/install.php $PA/$CLEANDIR/
fi

echo " ... "

if [ -d "$PA/profiles" ]; then
	echo "!!! profiles directory found, moving to $PA/$CLEANDIR !!!"
	mv $PA/profiles $PA/$CLEANDIR/
fi

echo " ... "

if [ -f "$PA/sites/example.sites.php" ]; then
	echo "!!! sites/example.sites.php found, moving to $PA/$CLEANDIR !!!"
	mv $PA/sites/example.sites.php $PA/$CLEANDIR/
fi

echo "Files moved."

echo "Scanning themes for html_head_alter (meta/generator manipulation)"

for i in `find $PA/themes/ -type f -name "template.php"`; do
	
	headStat=`grep -i "_html_head_alter(" $i |wc -l`
	let a=`echo "$i" | tr "/" "\\n" | wc -l`

	let a--

	theme=`echo "$i" |cut -d "/" -f $a`
	funcname=$theme"_html_head_alter"
	read -r -d '' template <<EOL
function $funcname(&\$head_elements) {
	unset(\$head_elements['system_meta_generator']);
}
EOL

	if [ "$headStat" -eq "0" ]; then
		echo "!!! ADDING $funcname() line to "$i
		echo $template >> $i	
	else
		echo "!!! SKIPPING "$i" has a $funcname() function - skipping. !!!"
	fi
done