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LEMPer/scripts/remove_redis.sh
2021-12-10 22:05:01 +07:00

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#!/usr/bin/env bash
# Redis Uninstaller
# Min. Requirement : GNU/Linux Ubuntu 18.04
# Last Build : 10/12/2021
# Author : MasEDI.Net (me@masedi.net)
# Since Version : 1.0.0
# Include helper functions.
if [[ "$(type -t run)" != "function" ]]; then
BASE_DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )
# shellcheck disable=SC1091
. "${BASE_DIR}/helper.sh"
fi
# Make sure only root can run this installer script.
requires_root
function init_redis_removal() {
# Stop Redis server process.
if [[ $(pgrep -c redis-server) -gt 0 ]]; then
run systemctl stop redis-server
fi
# Remove Redis server.
if dpkg-query -l | awk '/redis/ { print $2 }' | grep -qwE "^redis-server"; then
echo "Found Redis package installation. Removing..."
# shellcheck disable=SC2046
run apt-get remove --purge -qq -y $(dpkg-query -l | awk '/redis/ { print $2 }')
if [[ "${FORCE_REMOVE}" == true ]]; then
run add-apt-repository -y --remove ppa:chris-lea/redis-server
fi
else
info "Redis package not found, possibly installed from source."
echo "Remove it manually!!"
REDIS_BIN=$(command -v redis-server)
echo "Deleting Redis binary executable: ${REDIS_BIN}"
[[ -x "${REDIS_BIN}" ]] && run rm -f "${REDIS_BIN}"
fi
# Remove Redis config files.
warning "!! This action is not reversible !!"
if [[ "${AUTO_REMOVE}" == true ]]; then
if [[ "${FORCE_REMOVE}" == true ]]; then
REMOVE_REDIS_CONFIG="y"
else
REMOVE_REDIS_CONFIG="n"
fi
else
while [[ "${REMOVE_REDIS_CONFIG}" != "y" && "${REMOVE_REDIS_CONFIG}" != "n" ]]; do
read -rp "Remove Redis database and configuration files? [y/n]: " -e REMOVE_REDIS_CONFIG
done
fi
if [[ "${REMOVE_REDIS_CONFIG}" == Y* || "${REMOVE_REDIS_CONFIG}" == y* ]]; then
if [ -d /etc/redis ]; then
run rm -fr /etc/redis
fi
if [ -d /var/lib/redis ]; then
run rm -fr /var/lib/redis
fi
echo "All your Redis database and configuration files deleted permanently."
fi
# Final test.
if [[ "${DRYRUN}" == true ]]; then
info "Redis server removed in dry run mode."
else
if [[ -z $(command -v redis-server) ]]; then
success "Redis server removed succesfully."
else
info "Unable to remove Redis server."
fi
fi
}
echo "Uninstalling Redis server..."
if [[ -n $(command -v redis-server) ]]; then
if [[ "${AUTO_REMOVE}" == true ]]; then
REMOVE_REDIS="y"
else
while [[ "${REMOVE_REDIS}" != "y" && "${REMOVE_REDIS}" != "n" ]]; do
read -rp "Are you sure to remove Redis server? [y/n]: " -e REMOVE_REDIS
done
fi
if [[ "${REMOVE_REDIS}" == Y* || "${REMOVE_REDIS}" == y* || "${AUTO_REMOVE}" == true ]]; then
init_redis_removal "$@"
else
echo "Found Redis server, but not removed."
fi
else
info "Oops, Redis installation not found."
fi