Files
handy_scripts/restore-mysql-daily
2022-11-03 10:03:30 -04:00

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#!/bin/bash
ARCHPATH='/path/to/backup/daily/*'
SKIPDBS=('mysql' 'tables' 'to' 'skip')
FULLRESTORE=true
SKIPDBS=('mysql')
SETPOSDB=null
#---
START=$(date +%s)
echo -e "\n--START: $(date +%F\ %T)\nrestoring most recent backups from $ARCHPATH\n\n"
mysql -e "STOP SLAVE;"
if [[ $FULLRESTORE == false ]]; then
OLDDATE=$(ls -1d $ARCHPATH | head -1)
fi
NEWDATE=$(ls -1rd $ARCHPATH | head -1)
for FILE in $NEWDATE/backup_data/*.gz; do
FILE=$(basename $FILE)
if [[ "${SKIPDBS[*]}" =~ ${FILE%%.*} ]]; then echo "--$FILE";continue; fi;
if [[ "${SETPOSDB}" =~ ${FILE%%.*} ]]; then SETPOSFILE=$FILE;continue; fi;
if [[ -z $OLDDATE ]]; then
OLDSIZE=$(stat -c %s $OLDDATE/backup_data/$FILE)
else
OLDSIZE=0
fi
NEWSIZE=$(stat -c %s $NEWDATE/backup_data/$FILE)
if [[ $OLDSIZE != $NEWSIZE ]]; then
STARTLOOP=$(date +%s)
echo $(date +%F\ %T)
echo "$FILE:"
DB=$(echo $FILE | cut -f1 -d'.')
echo -e "\tmysql -e 'DROP DATABASE IF EXISTS $DB'
mysql -e 'CREATE DATABASE $DB'
gunzip < $NEWDATE/backup_data/$FILE | mysql $DB"
mysql -e "DROP DATABASE IF EXISTS $DB"
mysql -e "CREATE DATABASE $DB"
gunzip < $NEWDATE/backup_data/$FILE | mysql $DB
ENDLOOP=$(date +%s)
EXCTIME=$(expr $ENDLOOP - $STARTLOOP)
printf '\t%02dh:%02dm:%02ds\n' $((EXCTIME/3600)) $((EXCTIME%3600/60)) $((EXCTIME%60))
fi
done
if [[ -z $SETPOSFILE ]]; then
SETPOSSTMT =$(zcat $ARCHPATH$SETPOSFILE|head -40|rg MASTER|sed 's/-- //')
echo "\n$SETPOSSTMT\n"
mysql -e $SETPOS
fi
mysql -e "START SLAVE"
END=$(date +%s)
EXCTIME=$(expr $END - $START)
printf 'total runtime: %02dh:%02dm:%02ds\n' $((EXCTIME/3600)) $((EXCTIME%3600/60)) $((EXCTIME%60)
echo "--END: $(date +%F\ %T)\n\n"