Add script 'drop_tables.sh'.
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34
conf/drop_tables.conf.sample
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34
conf/drop_tables.conf.sample
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## ===================================================================
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## - Configuration File for "drop_tables.sh" Script
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## ===================================================================
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# - MYSQL_CREDENTIAL_ARGS
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# -
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# - MySQL / MariaDB credentials
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# -
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# - Giving password on command line is insecure an sind mysql 5.5
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# - you will get a warning doing so.
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# -
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# - Reading username/password fro file ist also possible, using MySQL/MariaDB
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# - commandline parameter '--defaults-file'.
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# -
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# - Since Mysql Version 5.6, you can read username/password from
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# - encrypted file.
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# -
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# - Create (encrypted) option file:
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# - $ mysql_config_editor set --login-path=local --socket=/tmp/mysql.sock --user=root --password
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# - $ Password:
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# -
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# - Use of option file:
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# - $ mysql --login-path=local ...
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# -
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# - Example
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# - MYSQL_CREDENTIAL_ARGS="--login-path=local"
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# - MYSQL_CREDENTIAL_ARGS="--defaults-file=/etc/mysql/debian.cnf" (Debian default)
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# - MYSQL_CREDENTIAL_ARGS="--defaults-file=/usr/local/mysql/sys-maint.cnf"
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# -
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# - Defaults to MYSQL_CREDENTIAL_ARGS="--login-path=local"
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# -
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#MYSQL_CREDENTIAL_ARGS=""
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311
drop_tables.sh
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311
drop_tables.sh
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#!/usr/bin/env bash
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working_dir="$(dirname $(realpath $0))"
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log_dir="${working_dir}/log"
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conf_file="${working_dir}/conf/drop_tables.conf"
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tmp_log_file="$(mktemp)"
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# -------------
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# - Variable settings
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# -------------
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#DEFAULT_ACTION='create'
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DEFAULT_MYSQL_CREDENTIAL_ARGS="--login-path=local"
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DATABASE_NAME=""
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DATABASE_NAME_NEEDED=true
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QUIET_MODE=false
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NON_INTERACTIVE_MODE=false
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# -------------
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# --- Some functions
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# -------------
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usage() {
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echo
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[ -n "$1" ] && echo -e "Error: $1\n"
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cat<<EOF
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Usage: $(basename $0) [Options]
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Script drops an existing MySQL database. The database name is either given on
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command line using parameter '-d' or will be asked for otherwise.
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If a user is given or
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Options:
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-d <db-name>
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The name of the domain, which is requested for deletion. If not set, script
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will ask for the database name.
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-I
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Non-interactive mode. Script will act in non-interactice mode. At least the
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database name must be given using parameter '-d'. Default is acting in
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interactive mode
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EOF
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clean_up 1
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}
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clean_up() {
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# Perform program exit housekeeping
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rm -f $tmp_log_file
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exit $1
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}
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fatal(){
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echo ""
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if $terminal ; then
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if [[ -n "$*" ]] ; then
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echo -e " [ \033[31m\033[1mFatal\033[m ]: $*"
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else
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echo " \033[31m\033[1mFatal error\033[m:"
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fi
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echo ""
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echo -e " \033[31m\033[1mScript will be interrupted.\033[m\033[m"
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else
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if [[ -n "$*" ]] ; then
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echo " [ Fatal ]: $*"
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else
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echo " Fatal error:"
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fi
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echo ""
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echo " Script was terminated...."
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fi
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echo ""
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clean_up 1
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}
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echononl(){
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if $terminal && ! $QUIET_MODE ; then
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echo X\\c > /tmp/shprompt$$
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if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
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echo -e -n "$*\\c" 1>&2
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else
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echo -e -n "$*" 1>&2
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fi
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rm /tmp/shprompt$$
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fi
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}
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error(){
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echo ""
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if $terminal ; then
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echo -e " [ \033[31m\033[1mError\033[m ]: $*"
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else
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echo "Error: $*"
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fi
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echo ""
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}
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warn (){
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if $terminal && ! $QUIET_MODE ; then
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echo ""
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echo -e " [ \033[33m\033[1mWarning\033[m ]: $*"
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echo ""
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fi
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}
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info (){
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if $terminal && ! $QUIET_MODE ; then
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echo ""
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echo -e " [ \033[32m\033[1mInfo\033[m ]: $*"
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echo ""
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fi
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}
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echo_ok() {
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if $terminal && ! $QUIET_MODE ; then
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echo -e "\033[80G[ \033[32mok\033[m ]"
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fi
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}
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echo_failed(){
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if $terminal && ! $QUIET_MODE ; then
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echo -e "\033[80G[ \033[1;31mfailed\033[m ]"
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fi
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}
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echo_skipped() {
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if $terminal && ! $QUIET_MODE ; then
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echo -e "\033[80G[ \033[37mskipped\033[m ]"
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fi
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}
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trap clean_up SIGHUP SIGINT SIGTERM
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# -------------
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# - Read Commandline Parameters
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# -------------
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while getopts d:hIqu:U opt ; do
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case $opt in
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d) DATABASE_NAME="$OPTARG"
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DATABASE_NAME_NEEDED=false
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;;
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I) NON_INTERACTIVE_MODE=true
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;;
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h) usage
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;;
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*) usage
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esac
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done
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shift $(expr $OPTIND - 1)
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[[ "$#" -gt 0 ]] && usage "Wrong number of arguments given!"
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# - If not running in a terminal, be silent and non-interactive
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# -
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if [[ -t 1 ]] ; then
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terminal=true
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else
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terminal=false
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QUIET_MODE=true
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NON_INTERACTIVE_MODE=true
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fi
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if $NON_INTERACTIVE_MODE && [[ -z "$DATABASE_NAME" ]]; then
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fatal "In quiet mode the database name must be given on th command line!"
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fi
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# -------------
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# - Load Settings from configuration file create_drop_database.conf
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# -------------
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if ! $QUIET_MODE ; then
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echo ""
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fi
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echononl " Loading configuration settings from $(basename ${conf_file}).."
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if [[ -f "$conf_file" ]]; then
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source "$conf_file" > $tmp_log_file 2>&1
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if [[ $? -eq 0 ]]; then
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echo_ok
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else
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echo_failed
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fatal "$(cat $tmp_log_file)"
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fi
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else
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echo_skipped
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warn "No Configuration File found. Loading defaults.."
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fi
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[[ -n "$MYSQL_CREDENTIAL_ARGS" ]] || MYSQL_CREDENTIAL_ARGS="$DEFAULT_MYSQL_CREDENTIAL_ARGS"
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if ! $NON_INTERACTIVE_MODE ; then
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clear
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if $DATABASE_NAME_NEEDED ; then
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echo ""
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echo -e "\033[32m--\033[m"
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echo ""
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echo "Insert Database name from which all tables should be deleted.."
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echo ""
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echo ""
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echononl "Database name: "
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read DATABASE_NAME
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while [ "X$DATABASE_NAME" = "X" ] ; do
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echo -e "\n\t\033[33m\033[1mEingabe erforderlich.\033[m\n"
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echononl "Database name: "
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read DATABASE_NAME
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done
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fi
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fi
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if ! $QUIET_MODE ; then
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echo ""
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echo ""
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echo -e "\033[32m\033[1m====================\033[m"
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echo "Settings: Drop all MySQL tables"
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echo -e "\033[32m\033[1m====================\033[m"
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echo ""
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echo " Database name................: $DATABASE_NAME"
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echo ""
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echo ""
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fi
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if ! $NON_INTERACTIVE_MODE ; then
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info "To Continue dropping all tables from \033[1m$DATABASE_NAME\033[m type uppercase 'YES'"
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echo -e -n "\033[1mContinue:\033[m "
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read OK
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if [[ "$OK" != "YES" ]] ; then
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fatal "Abort by user request - Answer as not 'YES'"
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fi
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fi
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_result="$(mysql $MYSQL_CREDENTIAL_ARGS -N -s -e "SHOW DATABASES LIKE '$DATABASE_NAME'")"
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if [[ -z "$_result" ]]; then
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fatal "No database '$DATABASE_NAME' found!"
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fi
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if ! $QUIET_MODE ; then
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echo ""
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echo ""
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echo -e " Processing database \033[1m$DATABASE_NAME\033[m"
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echo ""
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fi
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echononl " Get table list from database '$DATABASE_NAME' .."
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_TABLES="$(mysql $MYSQL_CREDENTIAL_ARGS $DATABASE_NAME -N -s -e "show tables" 2> $tmp_log_file)"
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if [[ $? -ne 0 ]] ; then
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echo_failed
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fatal "$(cat $tmp_log_file)"
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else
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echo_ok
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fi
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if [[ -z "$_TABLES" ]]; then
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warn "No tables found in database '$DATABASE_NAME'."
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clean_up 0
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fi
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echononl " Drop tables form database '$DATABASE_NAME' .."
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_failed=false
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> $tmp_log_file
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for _table in $_TABLES ; do
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mysql $MYSQL_CREDENTIAL_ARGS $DATABASE_NAME -N -s -e "DROP TABLE \`$_table\`" >> $tmp_log_file 2>&1
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if [[ $? -ne 0 ]] ; then
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_failed=true
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_tables_not_deleted+=("$_table")
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fi
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done
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if $_failed ; then
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echo_failed
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error "$(cat $tmp_log_file)"
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if [[ ${#_tables_not_deleted[@]} -gt 0 ]] ; then
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echo ""
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echo "Tables are NOT deleted:"
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for _table in "${_tables_not_deleted[@]}" ; do
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echo " $_table"
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done
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echo ""
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fi
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else
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echo_ok
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fi
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if ! $QUIET_MODE ; then
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echo ""
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fi
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clean_up 0
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