108 lines
2.0 KiB
Bash
Executable File
108 lines
2.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -o errexit
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set -o pipefail
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set -o nounset
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set -o posix
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err() {
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echo >&2 "[$(date +'%Y-%m-%dT%H:%M:%S%z')] ERROR: $*"
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}
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echo_date() {
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echo -e "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*"
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}
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usage() {
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cat >&2 <<-EOF
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Usage : $0 -d <directory> -l <db_name>
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-d dump directory destination (mandatory)
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-l list of db to dump (coma separated, mandatory)
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-k dumps to keep (in days)
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-h help
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EOF
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}
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typeset VAR_DIR_ARGS=""
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typeset VAR_DB_LIST_ARGS=""
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typeset VAR_ROTATION_DAYS_ARGS=""
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while getopts "d:l:k:h" OPTION; do
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case $OPTION in
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d)
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VAR_DIR_ARGS="$OPTARG"
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;;
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l)
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VAR_DB_LIST_ARGS="$OPTARG"
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;;
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k)
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VAR_ROTATION_DAYS_ARGS="$OPTARG"
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;;
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h)
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usage
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exit 0
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;;
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*)
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usage
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exit 1
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;;
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esac
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done
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[[ $VAR_DIR_ARGS != "" ]] || {
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usage
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exit 1
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}
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[[ $VAR_DB_LIST_ARGS != "" ]] || {
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usage
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exit 1
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}
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# remove eventual trailing slash
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typeset -r VAR_DUMPS_DST_DIR=${VAR_DIR_ARGS%/}
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if [[ ! -d $VAR_DUMPS_DST_DIR ]]; then
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mkdir -p "$VAR_DUMPS_DST_DIR" || {
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err "mkdir -p $VAR_DUMPS_DST_DIR"
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exit 1
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}
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fi
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for cmd in mysqldump gzip; do
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command -v "$cmd" >/dev/null || {
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err "$cmd command not found"
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exit 1
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}
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done
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for db in ${VAR_DB_LIST_ARGS//,/ }; do
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echo_date "start $db dump."
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typeset DUMP_FILE=$VAR_DUMPS_DST_DIR/$db.$(date +%F_%H%M%S).sql
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mysqldump --single-transaction --quick --routines "$db" >"$DUMP_FILE"
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# shellcheck disable=SC2181
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if (($? != 0)); then
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err "unable do dump $db"
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exit 1
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fi
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echo_date "done.\n"
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done
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for sql in "$VAR_DUMPS_DST_DIR/"*.sql; do
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echo_date "compress $sql."
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gzip -- "$sql" || {
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err "gzip $sql"
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exit 1
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}
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echo_date "done.\n"
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done
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if [[ -n $VAR_ROTATION_DAYS_ARGS ]]; then
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# rotation
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echo "Rotation of old dumps (-${VAR_ROTATION_DAYS_ARGS}d)"
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if ! find "$VAR_DUMPS_DST_DIR" -name "*.sql.gz" -type f -mtime +"$((VAR_ROTATION_DAYS_ARGS - 1))" -exec /bin/rm -vf {} \;; then
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err "clean old dumps"
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exit 1
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fi
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echo -e "done.\n"
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fi
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