From 5eff32f5788612986fce60a7ce0388f4730af6d6 Mon Sep 17 00:00:00 2001
From: Promofaux <adzjwarner@gmail.com>
Date: Thu, 11 Feb 2016 16:26:57 +0000
Subject: [PATCH] Loop through dependencies as with install, offer user a
 choice to keep or remove them.

---
 automated install/uninstall.sh | 63 +++++++++++++++++++++++++++-------
 1 file changed, 51 insertions(+), 12 deletions(-)

diff --git a/automated install/uninstall.sh b/automated install/uninstall.sh
index a0c40a48..5f6965b9 100644
--- a/automated install/uninstall.sh	
+++ b/automated install/uninstall.sh	
@@ -10,11 +10,29 @@
 # the Free Software Foundation, either version 2 of the License, or
 # (at your option) any later version.
 
+
+spinner() {
+	local pid=$1
+
+	spin='-\|/'
+	i=0
+	while $SUDO kill -0 $pid 2>/dev/null
+	do
+		i=$(( (i+1) %4 ))
+		printf "\b${spin:$i:1}"
+		sleep .1
+	done
+	printf "\b"
+}
+
+echo ":::"
+echo "::: Sorry to see you go :(..."
+echo ":::"
 # Must be root to uninstall
 if [[ $EUID -eq 0 ]];then
 	echo "You are root."
 else
-	echo "sudo will be used for the install."
+	echo "::: sudo will be used for the uninstall."
   # Check if it is actually installed
   # If it isn't, exit because the unnstall cannot complete
   if [[ $(dpkg-query -s sudo) ]];then
@@ -27,9 +45,25 @@ fi
 
 
 ######### SCRIPT ###########
-$SUDO apt-get -y remove --purge dnsutils bc toilet
-$SUDO apt-get -y remove --purge dnsmasq
-$SUDO apt-get -y remove --purge lighttpd php5-common php5-cgi php5
+#Check with user which dependencies to remove. They may be using some of them elsewhere
+echo ":::"
+echo "::: Removing dependencies..."
+dependencies=( dnsutils bc toilet figlet dnsmasq lighttpd php5-common php5-cgi php5 git curl unzip wget )
+	for i in "${dependencies[@]}"
+	do
+	:
+		if [ $(dpkg-query -W -f='${Status}' $i 2>/dev/null | grep -c "ok installed") -eq 1 ]; then
+			while true; do
+			    read -p ":::     Do you wish to remove this dependency from your system? [$i] (y/n): " yn
+			    case $yn in
+			        [Yy]* ) echo -n ":::        removing $i....";$SUDO apt-get -y -qq remove $i > /dev/null & spinner $!; echo " done."; break;;
+			        [Nn]* ) echo ":::        Keeping $i installed"; break;;
+			        * ) echo ":::         Please answer yes or no.";;
+			    esac			    
+			done
+			echo ":::"
+		fi
+	done
 
 # Only web directories/files that are created by pihole should be removed.
 echo -n "::: Removing the Pi-hole Web server files..."
@@ -44,12 +78,13 @@ $SUDO rm -rf /etc/.pihole
 echo " done."
 
 # If the web directory is empty after removing these files, then the parent html folder can be removed.
-if [[ ! "$(ls -A /var/www/html)" ]]; then
-    $SUDO rm -rf /var/www/html
-fi
+#if [[ ! "$(ls -A /var/www/html)" ]]; then
+#    $SUDO rm -rf /var/www/html
+#fi
 
-echo "::: Removing dnsmasq config files..."
+echo -n "::: Removing pi-hole dnsmasq config file..."
 $SUDO rm /etc/dnsmasq.d/01-pihole.conf
+echo " done."
 
 # Attempt to preserve backwards compatibility with older versions
 # to guarantee no additional changes were made to /etc/crontab after
@@ -64,16 +99,20 @@ fi
 
 # Attempt to preserve backwards compatibility with older versions
 if [[ -f /etc/cron.d/pihole ]];then
-  echo "Removing cron.d/pihole..."
+  echo -n "::: Removing pi-hole cron jobs..."
 	$SUDO rm /etc/cron.d/pihole
+	echo " done."
 fi
 
-echo "Removing config files and scripts..."
-$SUDO rm /etc/dnsmasq.conf
-$SUDO rm -rf /etc/lighttpd/
+echo -n "::: Removing config files and scripts..."
+$SUDO rm -rf /etc/.pihole/
+#$SUDO rm -rf /etc/lighttpd/
 $SUDO rm /var/log/pihole.log
 $SUDO rm /usr/local/bin/gravity.sh
 $SUDO rm /usr/local/bin/chronometer.sh
 $SUDO rm /usr/local/bin/whitelist.sh
+$SUDO rm /usr/local/bin/blacklist.sh
 $SUDO rm /usr/local/bin/piholeLogFlush.sh
 $SUDO rm -rf /etc/pihole/
+$SUDO rm /usr/local/bin/uninstall.sh
+echo " done."