mirror of
https://github.com/tiredofit/docker-db-backup.git
synced 2025-12-21 13:23:12 +01:00
feat - add basic cron expression scheduling
This commit is contained in:
Dave Conroy
@@ -19,34 +19,53 @@ if [[ "${MODE,,}" =~ "standalone" ]] || [ "${1,,}" = "manual" ] || [ "${1,,}" =
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backup_job_backup_begin=+0
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else
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silent sleep {{BACKUP_NUMBER}}
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current_time=$(date +'%s')
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today=$(date +"%Y%m%d")
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time_last_run=0
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time_current=$(date +'%s')
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if [[ ${backup_job_backup_begin} =~ ^\+(.*)$ ]]; then
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waittime=$(( ${BASH_REMATCH[1]} * 60 ))
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target_time=$(($current_time + $waittime))
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if [[ "${backup_job_backup_begin}" =~ ^\+(.*)$ ]]; then
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print_debug "BACKUP_BEGIN is a jump of minute starting with +"
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timer plus_value
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elif [[ "${backup_job_backup_begin}" =~ ^[0-9]{4}$ ]]; then
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print_debug "BACKUP_BEGIN is a HHMM value"
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timer time
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elif [[ "${backup_job_backup_begin}" =~ ([0-9]{4})-([0-9]{2})-([0-9]{2})[[:space:]]([0-9]{2}):([0-9]{2}):([0-9]{2}) ]]; then
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print_debug "BACKUP_BEGIN is a full date timestamp"
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timer datetime
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elif echo ${backup_job_backup_begin//\*/#} | grep -qP "^(((\d+,)+\d+|(\d+(\/|-)\d+)|\d+|#) ?){5}$" ; then
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print_debug "BACKUP_BEGIN is a cron expression"
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time_last_run=$(date +"%s")
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timer cron "${backup_job_backup_begin}" "${time_current}" "${time_last_run}"
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else
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target_time=$(date --date="${today} ${backup_job_backup_begin}" +'%s')
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if [[ "$target_time" < "$current_time" ]]; then
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target_time=$(($target_time + 24*60*60))
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fi
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waittime=$(($target_time - $current_time))
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print_error "_BACKUP_BEGIN is invalid - Unable to perform scheduling"
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cat <<EOF
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Valid Methods:
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+(number) - Start in however many minutes
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HHMM - Start at hour (00-24) and minute (00-59)
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YYYY-MM-DD HH:mm:ss - Start at a specific date and time
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0 23 * * * - Cron expression
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EOF
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print_error "Stopping backup_scheduler {{BACKUP_NUMBER}} due to detected errors. Fix and restart container."
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stop_scheduler_backup=true
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s6-svc -d /var/run/s6/legacy-services/dbbackup-{{BACKUP_NUMBER}}
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fi
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print_debug "Wait Time: ${waittime} Target time: ${target_time} Current Time: ${current_time}"
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print_info "Next Backup at $(date -d @${target_time} +'%Y-%m-%d %T %Z')"
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silent sleep $waittime
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set +x
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print_debug "Wait Time: ${time_wait} Future execution time: ${time_future} Current Time: ${time_current}"
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print_info "Next Backup at $(date -d @${time_future} +'%Y-%m-%d %T %Z')"
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silent sleep ${time_wait}
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fi
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while true; do
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if [ -n "${backup_job_blackout_start}" ] && [ -n "${backup_job_blackout_finish}" ] ; then
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hour_minute=$(date +%H%M)
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if [[ "${hour_minute}" > "${backup_job_blackout_start}" ]] && [[ "${hour_minute}" < "${backup_job_blackout_finish}" ]] ; then
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time_current_hour_minute=$(date +%H%M)
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if [[ "${time_current_hour_minute}" > "${backup_job_blackout_start}" ]] && [[ "${time_current_hour_minute}" < "${backup_job_blackout_finish}" ]] ; then
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blackout=true
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else
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blackout=false
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fi
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fi
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if var_true "${blackout}" ; then
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print_notice "Detected Blackout Period - Not performing backup operations"
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else
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@@ -55,40 +74,8 @@ while true; do
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echo "{{BACKUP_NUMBER}}" >> /tmp/.container/db-backup-backups
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print_debug "Backup {{BACKUP_NUMBER}} routines started time: $(date +'%Y-%m-%d %T %Z')"
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bootstrap_filesystem
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case "${dbtype,,}" in
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"couch" )
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check_availability
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backup_couch
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;;
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"influx" )
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check_availability
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backup_influx
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;;
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"mssql" )
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check_availability
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backup_mssql
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;;
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"mysql" )
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check_availability
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backup_mysql
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;;
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"mongo" )
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check_availability
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backup_mongo
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;;
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"pgsql" )
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check_availability
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backup_pgsql
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;;
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"redis" )
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check_availability
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backup_redis
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;;
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"sqlite3" )
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check_availability
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backup_sqlite3
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;;
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esac
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check_availability
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backup_${dbtype,,}
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timer job stop
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if [ -z "${exitcode_backup}" ] ; then exitcode_backup="0" ; fi
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print_info "Backup {{BACKUP_NUMBER}} routines finish time: $(date -d @${backup_job_finish_time} +'%Y-%m-%d %T %Z') with exit code ${exitcode_backup}"
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@@ -106,8 +93,15 @@ while true; do
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print_error "Stopping backup_scheduler {{BACKUP_NUMBER}} due to detected errors. Fix and restart container."
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s6-svc -d /var/run/s6/legacy-services/dbbackup-{{BACKUP_NUMBER}}
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else
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print_notice "Sleeping for another $(($backup_job_backup_interval*60-backup_job_total_time)) seconds. Waking up at $(date -d@"$(( $(date +%s)+$(($backup_job_backup_interval*60-backup_job_total_time))))" +'%Y-%m-%d %T %Z') "
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silent sleep $(($backup_job_backup_interval*60-backup_job_total_time))
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if [ ! "${time_cron}" = "true" ]; then
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print_notice "Sleeping for another $(($backup_job_backup_interval*60-backup_job_total_time)) seconds. Waking up at $(date -d@"$(( $(date +%s)+$(($backup_job_backup_interval*60-backup_job_total_time))))" +'%Y-%m-%d %T %Z') "
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silent sleep $(($backup_job_backup_interval*60-backup_job_total_time))
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else
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time_last_run=$(date +"%s")
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timer cron "${backup_job_backup_begin}" "${time_current}" "${time_last_run}"
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print_notice "Sleeping for another ${time_wait} seconds. Waking up at $(date -d@${time_future} +'%Y-%m-%d %T %Z') "
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silent sleep ${time_wait}
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fi
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fi
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fi
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done
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@@ -30,7 +30,7 @@ bootstrap_variables() {
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backup_init() {
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backup_instance_number=${1}
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backup_instance_vars=$(mktemp)
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set -o posix ; set | grep -oE "^backup_job_.*=" | tr " " "\n" | grep -oE ".*=" | sed "/--/d" > "${backup_instance_vars}"
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set -o posix ; set | grep -oE "^backup_job_.*=" | grep -oE ".*=" | sed "/--/d" > "${backup_instance_vars}"
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while read -r backup_instance_var ; do
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unset "$(echo "${backup_instance_var}" | cut -d = -f 1)"
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done < "${backup_instance_vars}"
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@@ -106,32 +106,38 @@ bootstrap_variables() {
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S3_PROTOCOL \
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S3_EXTRA_OPTS
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## Legacy after DEFAULT
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set -o posix ; set | grep -E "^DB${backup_instance_number}_|^DEFAULT_|^DB_|^ARCHIVE|^BACKUP_|^BLOBXFER_|^CHECKSUM|^COMPRESSION|^CREATE_|^ENABLE_|^EXTRA_|^GZ_|^INFLUX_|^MYSQL_|^MONGO_|^PARALLEL|^PRE_|^POST_|^S3|^SKIP|^SPLIT"| tr " " "\n" > "${backup_instance_vars}"
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set -o posix ; set | grep -E "^DB${backup_instance_number}_|^DEFAULT_|^DB_|^ARCHIVE|^BACKUP_|^BLOBXFER_|^CHECKSUM|^COMPRESSION|^CREATE_|^ENABLE_|^EXTRA_|^GZ_|^INFLUX_|^MYSQL_|^MONGO_|^PARALLEL|^PRE_|^POST_|^S3|^SKIP|^SPLIT" > "${backup_instance_vars}"
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## Legacy checks from removed variables
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if [ -n "${ENABLE_CHECKSUM}" ]; then
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print_warn "Deprecated Variable 'ENABLE_CHECKSUM' detected being used - Please upgrade your variables as they will be removed in version 4.3.0"
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print_warn "Deprecated and unsupported variable 'ENABLE_CHECKSUM' detected being used - Please upgrade your variables as they will be removed in version 4.3.0"
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if var_false "${ENABLE_CHECKSUM}" ; then
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DEFAULT_CHECKSUM=NONE
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fi
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fi
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#if [ -n "${DB_DUMP_FREQ}" ]; then
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# print_warn "Deprecated Variable 'DB_DUMP_FREQ' dnow_date=$(run_as_user date +"%Y-%m-%d")
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#fi
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if [ -n "${DB_DUMP_BEGIN}" ]; then
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print_warn "Deprecated and unsupported variable 'DB_DUMP_BEGIN' dnow_date=$(run_as_user date +"%Y-%m-%d")
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DEFAULT_BACKUP_BEGIN=${DB_BACKUP_BEGIN}
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fi
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if [ -n "${DB_DUMP_FREQ}" ]; then
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print_warn "Deprecated and unsupported variable 'DB_DUMP_FREQ' dnow_date=$(run_as_user date +"%Y-%m-%d")
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DEFAULT_BACKUP_INTERVAL=${DB_BACKUP_INTERVAL}
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fi
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if [ -n "${DB_DUMP_TARGET}" ]; then
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print_warn "Deprecated Variable 'DB_DUMP_TARGET' detected being used - Please upgrade your variables as they will be removed in version 4.3.0"
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print_warn "Deprecated and unsupported variable 'DB_DUMP_TARGET' detected being used - Please upgrade your variables as they will be removed in version 4.3.0"
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DEFAULT_FILESYSTEM_PATH="${DB_DUMP_TARGET}"
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fi
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if [ -n "${DB_DUMP_TARGET_ARCHIVE}" ]; then
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print_warn "Deprecated Variable 'DB_DUMP_TARGET_ACRHIVE' detected being used - Please upgrade your variables as they will be removed in version 4.3.0"
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print_warn "Deprecated and unsupported variable 'DB_DUMP_TARGET_ACRHIVE' detected being used - Please upgrade your variables as they will be removed in version 4.3.0"
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DEFAULT_FILESYSTEM_ARCHIVE_PATH="${DB_DUMP_TARGET_ARCHIVE}"
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fi
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if [ -n "${EXTRA_DUMP_OPTS}" ]; then
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print_warn "Deprecated Variable 'EXTRA_DUMP_OPTS' detected being used - Please upgrade your variables as they will be removed in version 4.3.0"
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print_warn "Deprecated and unsupported variable 'EXTRA_DUMP_OPTS' detected being used - Please upgrade your variables as they will be removed in version 4.3.0"
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DEFAULT_EXTRA_BACKUP_OPTS="${EXTRA_DUMP_OPTS}"
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fi
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##
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@@ -218,7 +224,8 @@ bootstrap_variables() {
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transform_backup_instance_variable "${backup_instance_number}" SPLIT_DB backup_job_split_db
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transform_backup_instance_variable "${backup_instance_number}" TYPE backup_job_db_type
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transform_backup_instance_variable "${backup_instance_number}" USER backup_job_db_user
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rm -rf "${backup_instance_vars}"
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backup_job_backup_begin=$(echo "${backup_job_backup_begin}" | sed -e "s|'||g" -e 's|"||g')
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}
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upgrade_lonely_variables() {
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@@ -704,7 +711,7 @@ backup_sqlite3() {
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check_availability() {
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### Set the Database Type
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if var_false "${backup_job_skip_availability_check}" ; then
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case "$dbtype" in
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case "${dbtype}" in
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"couch" )
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counter=0
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code_received=0
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@@ -1343,6 +1350,201 @@ timer() {
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esac
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;;
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cron)
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parse_expression() {
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local expressions=${1//,/ }
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expressions=${expressions//\*/#}
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local validate_all=""
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local validate_temp=""
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for expression in ${expressions}; do
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if [ "${expression}" = "#" ] || [ "${expression}" = "${3}" ]; then
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echo "${3}"
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return 0
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fi
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expression_step=${expression##*\/}
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expression_number=${expression%%\/*}
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validate_temp=""
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local expression_start=
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local expression_end=
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if [ "${expression_number}" = "#" ]; then
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expression_start=0
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expression_end="${2}"
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else
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expression_start=${expression_number%%-*}
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expression_end=${expression_number##*-}
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fi
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validate_temp=$(seq ${expression_start} ${expression_end})
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if [ "${expression_step}" != "${expression}" ]; then
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for step in ${validate_temp}; do
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if [ $(( (${step} - ${expression_start}) % ${expression_step} )) -eq 0 ]; then
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validate_all="$validate_all ${step}"
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fi
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done
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else
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validate_all="${validate_all} ${validate_temp}"
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fi
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done
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validate_all=$(echo $validate_all | tr ' ' '\n' | sort -n -u | tr '\n' ' ')
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for entry in $validate_all; do
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if [ "${entry}" -ge "${3}" ]; then
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echo "${entry}"
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return 0
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fi
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done
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echo ${validate_all%% *}
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}
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local cron_compare="${3}"
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local cron_compare_seconds=${cron_compare}
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local cron_compare_difference=$((${cron_compare} - ${4}))
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if [ "${cron_compare_difference}" -lt 60 ]; then
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cron_compare=$((${cron_compare} + $(( 60-${cron_compare_difference} )) ))
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fi
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local cron_current_seconds=$(date --date="@${cron_compare_seconds}" +"%-S")
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if [ $cron_current_seconds -ne 0 ]; then
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cron_compare_seconds=$(( ${cron_compare_seconds} - ${cron_current_seconds} ))
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fi
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local cron_minute=$(echo -n "${2}" | awk '{print $1}')
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local cron_hour=$(echo -n "${2}" | awk '{print $2}')
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local cron_day_of_month=$(echo -n "${2}" | awk '{print $3}')
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local cron_month=$(echo -n "${2}" | awk '{print $4}')
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local cron_day_of_week=$(echo -n "${2}" | awk '{print $5}')
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local cron_parsed=1
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local cron_next_minute=$(date --date="@${cron_compare}" +"%-M")
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local cron_next_hour=$(date --date="@${cron_compare}" +"%-H")
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local cron_next_day_of_month=$(date --date="@${cron_compare}" +"%-d")
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local cron_next_month=$(date --date="@${cron_compare}" +"%-m")
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local cron_next_day_of_week=$(date --date="@${cron_compare}" +"%-u")
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cron_next_day_of_week=$(( ${cron_next_day_of_week} % 7 ))
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local cron_next_year=$(date --date="@${cron_compare}" +"%-Y")
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local cron_next=
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while [ "$cron_parsed" != "0" ]; do
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cron_next=$(parse_expression "${cron_minute}" 59 "${cron_next_minute}")
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if [ "${cron_next}" != "${cron_next_minute}" ]; then
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if [ "${cron_next_minute}" -gt "${cron_next}" ]; then
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cron_next_hour=$(( ${cron_next_hour} + 1 ))
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fi
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cron_next_minute="${cron_next}"
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fi
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cron_next=$(parse_expression "${cron_hour}" 23 "${cron_next_hour}")
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if [ "${cron_next}" != "${cron_next_hour}" ]; then
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if [ "${cron_next_hour}" -gt "${cron_next}" ]; then
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cron_next_day_of_month=$(( ${cron_next_day_of_month} + 1 ))
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fi
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cron_next_hour="${cron_next}"
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#cron_next_minute=0
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fi
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cron_next=$(parse_expression "${cron_day_of_week}" 6 "${cron_next_day_of_week}")
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if [ "${cron_next}" != "${cron_next_day_of_week}" ]; then
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day_of_week_difference=$(( ${cron_next} - ${cron_next_day_of_week} ))
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if [ "${day_of_week_difference}" -lt "0" ]; then
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day_of_week_difference=$(( ${day_of_week_difference} + 7 ))
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fi
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cron_next_day_of_month=$(( ${cron_next_day_of_month} + ${day_of_week_difference} ))
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cron_next_hour=0
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cron_next_minute=0
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fi
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case "${cron_next_month}" in
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1|3|5|7|8|10|12)
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last_day_of_month="31"
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;;
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"2")
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local divide_by_4=$(( ${cron_next_year} % 4 ))
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local divide_by_100=$(( ${cron_next_year} % 100 ))
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local divide_by_400=$(( ${cron_next_year} % 400 ))
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last_day_of_month=28
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if [ "${divide_by_4}" = "0" ] && [ "${divide_by_100}" != "0" ]; then
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last_day_of_month="29"
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fi
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if [ "${divide_by_400}" = "0" ]; then
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last_day_of_month="29"
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fi
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;;
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*)
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last_day_of_month="30"
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;;
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esac
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cron_next=$(parse_expression "${cron_day_of_month}" 30 "${cron_next_day_of_month}")
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if [ "${cron_next}" != "${cron_next_day_of_month}" ]; then
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cron_next_hour=0
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cron_next_minute=0
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fi
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if [ "${cron_next_day_of_month}" -gt "${cron_next}" ] || [ "${cron_next_day_of_month}" -gt "${last_day_of_month}" ]; then
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cron_next_month=$(( ${cron_next_month} + 1 ))
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if [ ${cron_next_month} -gt 12 ]; then
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cron_next_month=$(( ${cron_next_month} - 12))
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cron_next_year=$(( ${cron_next_year} + 1 ))
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fi
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cron_next_day_of_month=1
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else
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cron_next_day_of_month=$cron_next
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fi
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cron_next=$(parse_expression "${cron_month}" 12 "${cron_next_month}")
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if [ "${cron_next}" != "${cron_next_month}" ]; then
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if [ "${cron_next}" -gt "12" ]; then
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cron_next_year=$(( ${cron_next_year} + 1 ))
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cron_next=$(( ${cron_next} - 12 ))
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fi
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if [ "${cron_next_month}" -gt "${cron_next}" ]; then
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cron_next_year=$(( ${cron_next_year} + 1 ))
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fi
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cron_next_month="${cron_next}"
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cron_next_day=1
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cron_next_minute=0
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cron_next_hour=0
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fi
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cron_parsed=0
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done
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local cron_future=$(date --date="${cron_next_year}-$(printf "%02d" ${cron_next_month})-$(printf "%02d" ${cron_next_day_of_month})T$(printf "%02d" ${cron_next_hour}):$(printf "%02d" ${cron_next_minute}):00" "+%s")
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local cron_future_difference=$((${cron_future} - ${cron_compare_seconds}))
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time_cron=true
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time_wait="${cron_future_difference}"
|
||||
time_future=${cron_future}
|
||||
;;
|
||||
datetime)
|
||||
time_begin_year=${BASH_REMATCH[1]}
|
||||
time_begin_month=${BASH_REMATCH[2]}
|
||||
time_begin_day=${BASH_REMATCH[3]}
|
||||
time_begin_hour=${BASH_REMATCH[4]}
|
||||
time_begin_minute=${BASH_REMATCH[5]}
|
||||
time_begin_second=${BASH_REMATCH[6]}
|
||||
time_begin=$(date -d "${time_begin_year}-${time_begin_month}-${time_begin_day} ${time_begin_hour}:${time_begin_minute}:${time_begin_second}" +%s)
|
||||
print_debug "BACKUP_BEGIN time = ${time_begin}"
|
||||
time_wait=$((time_begin - time_current))
|
||||
print_debug "Difference in seconds: ${time_wait}"
|
||||
|
||||
if (( ${time_wait} < 0 )); then
|
||||
time_wait=$(( (${time_wait} + (${backup_job_backup_interval - 1)) / (${backup_job_backup_interval} * 60) ))
|
||||
time_wait=$(( ${time_wait} * -1 ))
|
||||
print_debug "Difference in seconds (rounded) time_wait is in the past : ${time_wait}"
|
||||
fi
|
||||
|
||||
time_future=$((${time_current} + ${time_wait}))
|
||||
print_debug "Future execution time = ${time_future}"
|
||||
;;
|
||||
job)
|
||||
case "${2}" in
|
||||
@@ -1355,9 +1557,20 @@ timer() {
|
||||
;;
|
||||
esac
|
||||
;;
|
||||
plusvalue)
|
||||
time_wait=$(( ${BASH_REMATCH[1]} * 60 ))
|
||||
time_future=$(($time_current} + $time_wait))
|
||||
;;
|
||||
time)
|
||||
time_future=$(date --date="$(date +"%Y%m%d") ${backup_job_backup_begin}" +"%s")
|
||||
if [[ "${future_time}" < "${time_current}" ]]; then
|
||||
time_future=$(($time_future + 24*60*60))
|
||||
fi
|
||||
time_wait=$((${time_future} - ${time_current}))
|
||||
;;
|
||||
esac
|
||||
|
||||
}
|
||||
|
||||
prepare_dbbackup() {
|
||||
timer backup start
|
||||
now=$(run_as_user date +"%Y%m%d-%H%M%S")
|
||||
|
||||
Reference in New Issue
Block a user