mysql/drop_tables.sh

546 lines
14 KiB
Bash
Executable File

#!/usr/bin/env bash
working_dir="$(dirname $(realpath $0))"
log_dir="${working_dir}/log"
conf_file="${working_dir}/conf/mysql_credetials.conf"
tmp_log_file="$(mktemp)"
# -------------
# - Variable settings
# -------------
MYSQL_CREDENTIALS_GIVEN=false
DATABASE_NAME=""
DATABASE_NAME_NEEDED=true
QUIET_MODE=false
NON_INTERACTIVE_MODE=false
# -------------
# --- Some functions
# -------------
usage() {
echo
[ -n "$1" ] && echo -e "Error: $1\n"
cat<<EOF
Usage: $(basename $0) [Options]
Script drops an existing MySQL database. The database name is either given on
command line using parameter '-d' or will be asked for otherwise.
If a user is given or
Options:
-d <db-name>
The name of the domain, which is requested for deletion. If not set, script
will ask for the database name.
-I
Non-interactive mode. Script will act in non-interactice mode. At least the
database name must be given using parameter '-d'. Default is acting in
interactive mode
EOF
clean_up 1
}
clean_up() {
# Perform program exit housekeeping
rm -f $tmp_log_file
exit $1
}
fatal(){
echo ""
if $terminal ; then
if [[ -n "$*" ]] ; then
echo -e " [ \033[31m\033[1mFatal\033[m ]: $*"
else
echo " \033[31m\033[1mFatal error\033[m:"
fi
echo ""
echo -e " \033[31m\033[1mScript will be interrupted.\033[m\033[m"
else
if [[ -n "$*" ]] ; then
echo " [ Fatal ]: $*"
else
echo " Fatal error:"
fi
echo ""
echo " Script was terminated...."
fi
echo ""
clean_up 1
}
echononl(){
if $terminal && ! $QUIET_MODE ; then
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$$
fi
}
error(){
echo ""
if $terminal ; then
echo -e " [ \033[31m\033[1mError\033[m ]: $*"
else
echo "Error: $*"
fi
echo ""
}
warn (){
if $terminal && ! $QUIET_MODE ; then
echo ""
echo -e " [ \033[33m\033[1mWarning\033[m ]: $*"
echo ""
fi
}
info (){
if $terminal && ! $QUIET_MODE ; then
echo ""
echo -e " [ \033[32m\033[1mInfo\033[m ]: $*"
echo ""
fi
}
echo_ok() {
if $terminal && ! $QUIET_MODE ; then
echo -e "\033[80G[ \033[32mok\033[m ]"
fi
}
echo_failed(){
if $terminal && ! $QUIET_MODE ; then
echo -e "\033[80G[ \033[1;31mfailed\033[m ]"
fi
}
echo_skipped() {
if $terminal && ! $QUIET_MODE ; then
echo -e "\033[80G[ \033[37mskipped\033[m ]"
fi
}
is_number() {
return $(test ! -z "${1##*[!0-9]*}" > /dev/null 2>&1);
# - also possible
# -
#[[ ! -z "${1##*[!0-9]*}" ]] && return 0 || return 1
#return $([[ ! -z "${1##*[!0-9]*}" ]])
}
detect_mysql_version () {
_MYSQLD_VERSION="$(mysqld -V 2>/dev/null)"
if [[ -z "$_MYSQLD_VERSION" ]]; then
fatal "No installed MySQL server or distribution found!"
elif [[ -d "/usr/local/mysql" ]] && [[ "$(basename "$(realpath "/usr/local/mysql")")" =~ percona- ]]; then
MYSQL_CUR_DISTRIBUTION="Percona"
elif [[ "$_MYSQLD_VERSION" =~ MariaDB ]]; then
MYSQL_CUR_DISTRIBUTION="MariaDB"
elif [[ "$_MYSQLD_VERSION" =~ MySQL ]]; then
MYSQL_CUR_DISTRIBUTION="MySQL"
elif [[ -d "/usr/local/mysql" ]] && [[ "$(basename "$(realpath "/usr/local/mysql")")" =~ mysql- ]]; then
MYSQL_CUR_DISTRIBUTION="MySQL"
elif [[ -d "/usr/local/mysql" ]] && [[ "$(basename "$(realpath "/usr/local/mysql")")" =~ mariadb- ]]; then
MYSQL_CUR_DISTRIBUTION="MariaDB"
else
error "MySQL Instalation found, but cannot determin the distribution!"
MYSQL_CUR_DISTRIBUTION=
echo ""
echo " Select the MySQL distribution to install."
echo ""
echo " [1] MySQL (the original community edition)"
echo " [2] Percona Server for MySQL"
echo " [3] MariaDB"
echo ""
echononl " Eingabe [1/2/3]: "
while [ "$MYSQL_CUR_DISTRIBUTION" != "MySQL" -a "$MYSQL_CUR_DISTRIBUTION" != "MariaDB" -a "$MYSQL_CUR_DISTRIBUTION" != "Percona" ];do
read OPTION
case $OPTION in
1) MYSQL_CUR_DISTRIBUTION="MySQL"
;;
2) MYSQL_CUR_DISTRIBUTION="Percona"
;;
3) MYSQL_CUR_DISTRIBUTION="MariaDB"
;;
*) echo ""
echo -e "\tFalsche Eingabe ! [ 1 = MySQL ; 2 = Percona ; 3 = MariaDB ]"
echo ""
echononl " Eingabe:"
;;
esac
done
fi
MYSQL_VERSION="$(echo $_MYSQLD_VERSION | grep -o -E "[0-9]+\.[0-9]+\.[0-9]+(-[0-9]+)?" | head -n 1)"
MYSQL_MAJOR_VERSION="$(echo $MYSQL_VERSION | cut -d '.' -f1)"
MYSQL_MINOR_VERSION="$(echo $MYSQL_VERSION | cut -d '.' -f2)"
MYSQL_PATCH_LEVEL="$(echo $MYSQL_VERSION | cut -d '.' -f3)"
MYSQL_MAIN_VERSION="$(echo $MYSQL_VERSION | cut -d '.' -f1,2)"
}
trap clean_up SIGHUP SIGINT SIGTERM
# -------------
# - Read Commandline Parameters
# -------------
while getopts d:hIqu:U opt ; do
case $opt in
d) DATABASE_NAME="$OPTARG"
DATABASE_NAME_NEEDED=false
;;
I) NON_INTERACTIVE_MODE=true
;;
h) usage
;;
*) usage
esac
done
shift $(expr $OPTIND - 1)
[[ "$#" -gt 0 ]] && usage "Wrong number of arguments given!"
# - If not running in a terminal, be silent and non-interactive
# -
if [[ -t 1 ]] ; then
terminal=true
else
terminal=false
QUIET_MODE=true
NON_INTERACTIVE_MODE=true
fi
if $NON_INTERACTIVE_MODE && [[ -z "$DATABASE_NAME" ]]; then
fatal "In quiet mode the database name must be given on th command line!"
fi
# -------------
# - Load Settings from configuration file mysql_credetials.conf
# -------------
if ! $QUIET_MODE ; then
echo ""
fi
echononl " Loading configuration settings from $(basename ${conf_file}).."
if [[ -f "$conf_file" ]]; then
source "$conf_file" > $tmp_log_file 2>&1
if [[ $? -eq 0 ]]; then
echo_ok
else
echo_failed
fatal "$(cat $tmp_log_file)"
fi
else
echo_skipped
warn "No Configuration File found. Loading defaults.."
fi
if [[ -n "$mysql_credential_args" ]]; then
MYSQL_CREDENTIAL_ARGS="$mysql_credential_args"
MYSQL_CREDENTIALS_GIVEN=true
fi
if ! $NON_INTERACTIVE_MODE ; then
declare -i index_arr=0
# - Get MySQL Version
# -
if [[ ${#mysql_credential_args_arr[@]} -gt 0 ]] ; then
echo ""
echo -e "\033[32m--\033[m"
echo ""
echo "Which Installation should be used?"
echo ""
echo ""
declare -a _tmp_arr=()
#for _val in ${mysql_credential_args_arr[@]} ; do
while [[ $index_arr -lt ${#mysql_credential_args_arr[@]} ]] ; do
#IFS=':' read -a _val_arr <<< "${_val}"
IFS=':' read -a _val_arr <<< "${mysql_credential_args_arr[$index_arr]}"
mysql_version="${_val_arr[0]}"
mysql_credential_args="${_val_arr[1]}"
mysql_dist_string="$(mysql $mysql_credential_args -N -s -e "SELECT VERSION()" 2> /dev/null)"
if [[ "$mysql_dist_string" =~ MariaDB ]]; then
mysql_dist="MariaDB $mysql_version"
else
mysql_dist="MySQL/Percona $mysql_version"
fi
echo " [$index_arr] $mysql_dist"
_temp_arr[${index_arr}]="$mysql_credential_args"
#_temp_arr+=("$mysql_credential_args")
(( index_arr++ ))
done
_OK=false
echo ""
echononl "Eingabe: "
while ! $_OK ; do
read _IN
if is_number "$_IN" && [[ -n ${_temp_arr[$_IN]} ]]; then
MYSQL_CREDENTIAL_ARGS="${_temp_arr[$_IN]}"
_OK=true
else
echo ""
echo -e "\tFalsche Eingabe !"
echo ""
echononl "Eingabe: "
fi
done
MYSQL_CREDENTIALS_GIVEN=true
fi
if $DATABASE_NAME_NEEDED ; then
echo ""
echo -e "\033[32m--\033[m"
echo ""
echo "Insert Database name from which all tables should be deleted.."
echo ""
echo ""
echononl "Database name: "
read DATABASE_NAME
while [ "X$DATABASE_NAME" = "X" ] ; do
echo -e "\n\t\033[33m\033[1mEingabe erforderlich.\033[m\n"
echononl "Database name: "
read DATABASE_NAME
done
fi
fi
if $MYSQL_CREDENTIALS_GIVEN ; then
# - Get MySQL Version
# -
echo ""
echo -e "\033[32m--\033[m"
echo ""
echononl " Get MySQL Version"
_version="$(mysql $MYSQL_CREDENTIAL_ARGS -N -s -e "SELECT VERSION()" 2> $tmp_log_file)"
if [[ $? -ne 0 ]] ; then
echo_failed
fatal "$(cat $tmp_log_file)"
else
echo_ok
fi
IFS='.' read -r -a version_arr <<< "$_version"
declare -i MAJOR_VERSION="${version_arr[0]}"
declare -i MINOR_VERSION="${version_arr[1]}"
_path_level="${version_arr[2]}"
declare -i PATCH_LEVEL="${_path_level%%-*}"
## - Get current MySQL Distribution
## -
echononl " Get current MySQL distribution .."
if [[ -z "$_version" ]]; then
echo_failed
fatal "No installed MySQL server or distribution found!"
elif [[ "$_version" =~ MariaDB ]]; then
MYSQL_CUR_DISTRIBUTION="MariaDB"
else
MYSQL_CUR_DISTRIBUTION="MySQL"
fi
echo_ok
echo ""
echo -e "\033[32m--\033[m"
echo ""
else
detect_mysql_version
MAJOR_VERSION="$MYSQL_MAJOR_VERSION"
MINOR_VERSION="$MYSQL_MINOR_VERSION"
PATCH_LEVEL="$MYSQL_PATCH_LEVEL"
if [[ "$MYSQL_CUR_DISTRIBUTION" = "MariaDB" ]] && ([[ $MAJOR_VERSION -gt 10 ]] \
|| ( [[ $MAJOR_VERSION -eq 10 ]] && [[ $MINOR_VERSION -gt 3 ]] )) ; then
if [[ -S "/tmp/mysql.sock" ]]; then
MYSQL_CREDENTIAL_ARGS="-u root -S /tmp/mysql.sock"
elif [[ -S "/run/mysqld/mysqld.sock" ]]; then
MYSQL_CREDENTIAL_ARGS="-u root -S /run/mysqld/mysqld.sock"
elif [[ -S "/var/run/mysqld/mysqld.sock" ]]; then
MYSQL_CREDENTIAL_ARGS="-u root -S /var/run/mysqld/mysqld.sock"
else
fatal "Parameter 'MYSQL_CREDENTIAL_ARGS' cannot be determined automated.
Use configuration file "$conf_file" to set
parameter manually."
fi
else
if $(mysql --login-path=local -e ";" > /dev/null 2>&1) ; then
MYSQL_CREDENTIAL_ARGS="--login-path=local"
elif [[ -f "/usr/local/mysql/sys-maint.cnf" ]] ; then
MYSQL_CREDENTIAL_ARGS="--defaults-file=/usr/local/mysql/sys-maint.cnf"
elif [[ -f "/etc/mysql/debian.cnf" ]] ; then
MYSQL_CREDENTIAL_ARGS="--defaults-file=/etc/mysql/debian.cnf"
else
fatal "Parameter 'MYSQL_CREDENTIAL_ARGS' cannot be determined automated.
Use configuration file "$conf_file" to set
parameter manually."
fi
fi
fi
if ! $QUIET_MODE ; then
echo ""
echo ""
echo -e "\033[32m\033[1m====================\033[m"
echo "Settings: Drop all MySQL tables from dadabase '$DATABASE_NAME'"
echo -e "\033[32m\033[1m====================\033[m"
echo ""
echo " MySQL Distribution...........: $MYSQL_CUR_DISTRIBUTION"
echo " MySQL Version................: ${MAJOR_VERSION}.${MINOR_VERSION}.${PATCH_LEVEL}"
echo " MySQL Credentials............: $MYSQL_CREDENTIAL_ARGS"
echo ""
echo " Database name................: $DATABASE_NAME"
echo ""
echo ""
fi
if ! $NON_INTERACTIVE_MODE ; then
info "To Continue dropping all tables from \033[1m$DATABASE_NAME\033[m type uppercase 'YES'"
echo -e -n "\033[1mContinue:\033[m "
read OK
if [[ "$OK" != "YES" ]] ; then
fatal "Abort by user request - Answer as not 'YES'"
fi
fi
_result="$(mysql $MYSQL_CREDENTIAL_ARGS -N -s -e "SHOW DATABASES LIKE '$DATABASE_NAME'")"
if [[ -z "$_result" ]]; then
fatal "No database '$DATABASE_NAME' found!"
fi
if ! $QUIET_MODE ; then
echo ""
echo ""
echo -e " Processing database \033[1m$DATABASE_NAME\033[m"
echo ""
fi
echononl " Get table list from database '$DATABASE_NAME' .."
_TABLES="$(mysql $MYSQL_CREDENTIAL_ARGS $DATABASE_NAME -N -s -e "show tables" 2> $tmp_log_file)"
if [[ $? -ne 0 ]] ; then
echo_failed
fatal "$(cat $tmp_log_file)"
else
echo_ok
fi
if [[ -z "$_TABLES" ]]; then
warn "No tables found in database '$DATABASE_NAME'."
clean_up 0
fi
echononl " Drop tables form database '$DATABASE_NAME' .."
_failed=false
> $tmp_log_file
for _table in $_TABLES ; do
mysql $MYSQL_CREDENTIAL_ARGS $DATABASE_NAME -N -s -e "DROP TABLE \`$_table\`" >> $tmp_log_file 2>&1
if [[ $? -ne 0 ]] ; then
_failed=true
_tables_not_yet_deleted+=("$_table")
fi
done
if $_failed ; then
echo_failed
warn "$(cat $tmp_log_file)"
if [[ ${#_tables_not_yet_deleted[@]} -gt 0 ]] ; then
echo ""
echo " Tables are NOT YET deleted:"
for _table in "${_tables_not_yet_deleted[@]}" ; do
echo " $_table"
done
echo ""
echononl " Mybe some contrains causes the problem. Try again.."
_failed_again=false
: > $tmp_log_file
for _table in "${_tables_not_yet_deleted[@]}" ; do
mysql $MYSQL_CREDENTIAL_ARGS $DATABASE_NAME -N -s -e "DROP TABLE \`$_table\`" >> $tmp_log_file 2>&1
if [[ $? -ne 0 ]] ; then
_failed_again=true
_tables_not_deleted+=("$_table")
fi
done
if $_failed_again ; then
echo_failed
error "$(cat $tmp_log_file)"
if [[ ${#_tables_not_deleted[@]} -gt 0 ]] ; then
echo ""
echo " Tables are NOT deleted:"
for _table in "${_tables_yet_deleted[@]}" ; do
echo " $_table"
done
echo ""
fi
else
echo_ok
info "All tables from database '$DATABASE_NAME' are now deleted."
fi
fi
else
echo_ok
fi
if ! $QUIET_MODE ; then
echo ""
fi
clean_up 0