From e8ac8ba79f9b582fb3812f1854fef008ec2314d4 Mon Sep 17 00:00:00 2001
From: Christoph <ckubu@oopen.de>
Date: Thu, 22 Feb 2018 17:31:10 +0100
Subject: [PATCH] Add script 'remove_mariadb_installation.sh'.

---
 remove_mariadb_installation.sh | 330 +++++++++++++++++++++++++++++++++
 1 file changed, 330 insertions(+)
 create mode 100755 remove_mariadb_installation.sh

diff --git a/remove_mariadb_installation.sh b/remove_mariadb_installation.sh
new file mode 100755
index 0000000..920a61d
--- /dev/null
+++ b/remove_mariadb_installation.sh
@@ -0,0 +1,330 @@
+#!/usr/bin/env bash
+
+working_dir="$(dirname $(realpath $0))"
+
+tmp_log_file="$(mktemp)"
+
+# -------------
+# - Variable settings
+# -------------
+
+MARIADB_SERVICE_FILE="mariadb.service"
+MARIADB_SYSV_INIT_SCRIPT="mysql.server"
+
+_mysql_bin="/usr/local/mysql/bin/mysql"
+
+
+# -------------
+# --- Some functions
+# -------------
+
+clean_up() {
+
+   # Perform program exit housekeeping
+   rm -f $tmp_log_file
+   exit $1
+}
+
+
+echononl(){
+	echo X\\c > /tmp/shprompt$$
+	if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
+		echo -e -n "$*\\c" 1>&2
+	else
+		echo -e -n "$*" 1>&2
+	fi
+	rm /tmp/shprompt$$
+}
+
+
+fatal(){
+   echo ""
+	if [[ -n "$*" ]] ; then
+		echo -e "   [ \033[31m\033[1mFatal\033[m ]: $*"
+	else
+		echo "   \033[31m\033[1mFatal error\033[m:"
+	fi
+	echo ""
+	echo -e "              \033[31m\033[1mScript will be interrupted.\033[m\033[m"
+   echo ""
+   clean_up 1
+}
+
+error(){
+   echo ""
+   echo -e "   [ \033[31m\033[1mError\033[m ]: $*"
+   echo ""
+}
+
+warn (){
+  echo ""
+  echo -e "   [ \033[33m\033[1mWarning\033[m ]: $*"
+  echo ""
+}
+
+
+info (){
+	echo ""
+	echo -e "   [ \033[32m\033[1mInfo\033[m ]: $*"
+	echo ""
+}
+
+echo_ok() {
+   echo -e "\033[80G[ \033[32mok\033[m ]"
+}
+echo_failed(){
+   echo -e "\033[80G[ \033[1;31mfailed\033[m ]"
+}
+echo_skipped() {
+   echo -e "\033[80G[ \033[37mskipped\033[m ]"
+}
+
+
+trap clean_up SIGHUP SIGINT SIGTERM
+
+clear
+echo ""
+echo ""
+echo -e "   \033[32m\033[1m===========================\033[m"
+echo "   Remove MariaDB Installation"
+echo -e "   \033[32m\033[1m===========================\033[m"
+echo ""
+echo ""
+echo -n "   Remove also the database directory? [yes/no]: "
+read OK
+if [[ "$(echo "${OK,,}")" = "yes" ]] ; then
+   remove_data_dir=true
+else
+   remove_data_dir=false
+fi
+echo ""
+
+
+if $remove_data_dir ; then
+   warn "This will also remove the MariaDB Data Directory!"
+else
+   info "The MariaDB Data Directory will be left untouched."
+fi
+
+echo -e "   \033[32m--\033[m"
+echo ""
+echo -e -n "   Type \033[1muppercase 'YES'\033[m to continue:\033[m "
+read OK
+
+if [[ "$OK" != "YES" ]] ; then
+   echo ""
+   echo -e "   \033[32m--\033[m"
+	fatal "Abort by user request - Answer as not 'YES'"
+else
+   echo ""
+   echo -e "   \033[32m--\033[m"
+   echo ""
+fi
+
+
+
+
+_MARIADB_INITSCRIPT=
+if [ -f "/etc/init.d/$MARIADB_SYSV_INIT_SCRIPT" ];then
+   _MARIADB_INITSCRIPT="${MARIADB_SYSV_INIT_SCRIPT}"
+elif [ -f /etc/init.d/mysql.server ];then
+   _MARIADB_INITSCRIPT="mysql.server"
+elif [ -f /etc/init.d/mysql ];then
+   _MARIADB_INITSCRIPT="mysql"
+fi
+
+_SYSTEMD_SERVICE_FILE=
+if [[ -f "/etc/systemd/system/$MARIADB_SERVICE_FILE" ]]; then
+   _SYSTEMD_SERVICE_FILE="${MARIADB_SERVICE_FILE}"
+elif [[ -f /etc/systemd/system/mysql.service ]] ; then
+   _SYSTEMD_SERVICE_FILE="mysql.service"
+elif [[ -f /etc/systemd/system/mysqld.service ]] ; then
+   _SYSTEMD_SERVICE_FILE="mysqld.service"
+fi
+
+
+echo ""
+echononl "   Determine installed version number.."
+if [[ -x "$_mysql_bin" ]]; then
+   CURRENT_VERSION="$($_mysql_bin -V | grep -o -E "Distrib\s+[0-9]+\.[0-9]+\.[0-9]+" | awk '{print$2}')"
+	if [[ -n "$CURRENT_VERSION" ]] ; then
+		echo_ok
+	else
+		echo_failed
+   fi
+else
+   CURRENT_VERSION=""
+	echo_skipped
+fi
+
+echo ""
+
+_found=false
+if [[ -f "/etc/init.d/$_MARIADB_INITSCRIPT" ]] || [[ -h "$_MARIADB_INITSCRIPT" ]] ; then
+
+	echononl "   Stop MariaDB service.."
+	/etc/init.d/$_MARIADB_INITSCRIPT stop > $tmp_log_file 2>&1
+	if [[ $? -ne 0 ]] ; then
+		echo_failed
+		error "$(cat $tmp_log_file)"
+	else
+		echo_ok
+	fi
+
+	echononl "   Disable MariaDB service.."
+   update-rc.d -f $_MARIADB_INITSCRIPT remove > $tmp_log_file 2>&1
+	if [[ $? -ne 0 ]] ; then
+		echo_failed
+		error "$(cat $tmp_log_file)"
+	else
+		echo_ok
+	fi
+
+	echononl "   Remove '/etc/init.d/$_MARIADB_INITSCRIPT'.."
+   rm "/etc/init.d/$_MARIADB_INITSCRIPT" > $tmp_log_file 2>&1
+	if [[ $? -ne 0 ]] ; then
+		echo_failed
+		error "$(cat $tmp_log_file)"
+	else
+		echo_ok
+	fi
+
+   _found=true
+
+elif [[ -f "/etc/systemd/system/$_SYSTEMD_SERVICE_FILE" ]] ; then
+	
+	echononl "   Stop MariaDB service.."
+   systemctl stop $_SYSTEMD_SERVICE_FILE > $tmp_log_file 2>&1
+	if [[ $? -ne 0 ]] ; then
+		echo_failed
+		error "$(cat $tmp_log_file)"
+	else
+		echo_ok
+	fi
+
+	echononl "   Disable MariaDB service.."
+   systemctl disable $_SYSTEMD_SERVICE_FILE > $tmp_log_file 2>&1
+	if [[ $? -ne 0 ]] ; then
+		echo_failed
+		error "$(cat $tmp_log_file)"
+	else
+		echo_ok
+	fi
+
+	echononl "   Remove '/etc/systemd/system/$_SYSTEMD_SERVICE_FILE'.."
+   rm "/etc/systemd/system/$_SYSTEMD_SERVICE_FILE"
+	if [[ $? -ne 0 ]] ; then
+		echo_failed
+		error "$(cat $tmp_log_file)"
+	else
+		echo_ok
+	fi
+
+   _found=true
+
+else
+   warn "No SysV Initscript or Systemd Service File found."
+fi
+
+
+echo ""
+
+_failed=false
+echononl "   Remove MariaDB data directory"
+if $remove_data_dir ; then
+   if [[ -h "/data/mysql" ]]; then
+
+      _real_dir="$(realpath /data/mysql)"
+      
+      rm "/data/mysql" > $tmp_log_file 2>&1
+      if [[ $? -ne 0 ]]; then
+         _failed=true
+         echo_failed
+         error " rm \"/data/mysql\": \n$(cat $tmp_log_file)"
+      fi
+
+      if [[ -d "${_real_dir}" ]]; then
+         rm -r "${_real_dir}" > $tmp_log_file 2>&1
+         if [[ $? -ne 0 ]]; then
+            if ! $_failed ; then
+               echo_failed
+               _failed=true
+            fi
+            error " rm -r \"${_real_dir}\": \n$(cat $tmp_log_file)"
+         fi
+      fi
+      if ! $_failed ; then
+         echo_ok
+      fi
+
+   else
+      echo_skipped
+   fi
+fi
+
+_failed=false
+echononl "   Remove MariaDB installation directory"
+if [[ -h "/usr/local/mysql" ]]; then
+
+	_real_dir="$(realpath "/usr/local/mysql")"
+	
+   rm "/usr/local/mysql" > $tmp_log_file 2>&1
+	if [[ $? -ne 0 ]]; then
+		_failed=true
+		echo_failed
+		error " rm \"/usr/local/mysql\": \n$(cat $tmp_log_file)"
+	fi
+
+   if [[ -d "${_real_dir}" ]]; then
+      rm -r "${_real_dir}" > $tmp_log_file 2>&1
+		if [[ $? -ne 0 ]]; then
+			if $_failed ; then
+				echo_failed
+				_failed=true
+			fi
+			error " rm -r \"${_real_dir}\": \n$(cat $tmp_log_file)"
+		fi
+   fi
+	if ! $_failed ; then
+		echo_ok
+	fi
+
+else
+	echo_skipped
+fi
+
+
+
+if [[ -n "$CURRENT_VERSION" ]] ; then
+
+	echo ""
+
+	echononl "   Remove directory '${working_dir}/log-${CURRENT_VERSION}'.."
+   if [[ -d "${working_dir}/log-${CURRENT_VERSION}" ]] ; then
+      rm -r ${working_dir}/log-${CURRENT_VERSION} > $tmp_log_file 2>&1
+		if [[ $? -ne 0 ]] ; then
+			echo_failed
+			error "$(cat $tmp_log_file)"
+		else
+			echo_ok
+		fi
+	else
+		echo_skipped
+   fi
+
+	echononl "   Remove directory '${working_dir}/mariadb-${CURRENT_VERSION}'.."
+   if [[ -d "${working_dir}/mariadb-${CURRENT_VERSION}" ]] ; then
+      rm -r ${working_dir}/mariadb-${CURRENT_VERSION} > $tmp_log_file 2>&1
+		if [[ $? -ne 0 ]] ; then
+			echo_failed
+			error "$(cat $tmp_log_file)"
+		else
+			echo_ok
+		fi
+	else
+		echo_skipped
+   fi
+fi
+
+echo ""
+clean_up 0