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78 lines
1.7 KiB
78 lines
1.7 KiB
#!/bin/bash
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usage="$exname [--host HOST] [DATABASE...]"
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DBS=()
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host=
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while [ "$1" ]; do
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case "$1" in
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"--help"|"-h")
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echo "$usage" >&2
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exit 0
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;;
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"--host")
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host="$2"
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shift
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;;
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*)
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DBS+=("$1")
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;;
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esac
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shift
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done
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mysql_opts=()
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if [ "$host" ]; then
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mysql_opts+=(-h "$host")
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fi
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m() {
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mysql "${mysql_opts[@]}" -Bs "$@"
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}
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md() {
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mysqldump "${mysql_opts[@]}" "$@"
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}
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mysql_databases() {
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echo "SHOW DATABASES" | m
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}
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mysql_tables() {
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local db="$1"
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echo "SHOW TABLES" | m "$db"
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}
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if [ "${#DBS[@]}" == 0 ]; then
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DBS=($(mysql_databases)) || exit 1
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fi
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mkdir -p /var/backups/mysql
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for db in "${DBS[@]}"; do
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if [[ "$db" == "information_schema" || "$db" == "performance_schema" || "$db" == "mysql" ]]; then
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continue
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fi
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echo "Dumping database $db..." >&2
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# omitting all the rotation logic
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dst=/"var/backups/mysql/$db"
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[ -d "$dst.old" ] && rm -rf "$dst.old"
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[ -d "$dst" ] && mv "$dst" "$dst.old"
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mkdir -p "$dst.inprogress"
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(( start = SECONDS ))
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md "$db" --routines --no-data --add-drop-database --database "$db" | gzip --rsyncable > "$dst.inprogress/00-schema.sql.gz"
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tables=$(mysql_tables "$db")
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for table in $tables; do
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backup_file="$dst.inprogress/${table}.sql.gz"
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echo " Dumping $table into ${backup_file}"
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md "$db" "$table" | gzip --rsyncable > "$backup_file" || break
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done
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mv "$dst.inprogress" "$dst"
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[ -d "$dst.old" ] && rm -rf "$dst.old"
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(( elapsed = SECONDS - start ))
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echo " ..dumped $db to $dst ($(du -sh "$dst" | cut -f 1) in ${elapsed}s)" >&2
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done
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