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199 lines
6.9 KiB
199 lines
6.9 KiB
#!/bin/bash
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# LinuxGSM command_backup.sh function
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# Author: Daniel Gibbs
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# Contributor: UltimateByte
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# Website: https://gameservermanagers.com
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# Description: Creates a .tar.gz file in the backup directory.
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local commandname="BACKUP"
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local commandaction="Backup"
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local function_selfname="$(basename $(readlink -f "${BASH_SOURCE[0]}"))"
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check.sh
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# Trap to remove lockfile on quit.
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fn_backup_trap(){
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echo ""
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echo -ne "backup ${backupname}.tar.gz..."
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fn_print_canceled_eol_nl
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fn_script_log_info "Backup ${backupname}.tar.gz: CANCELED"
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sleep 1
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rm -f "${backupdir}/${backupname}.tar.gz" | tee -a "${lgsmlog}"
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echo -ne "backup ${backupname}.tar.gz..."
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fn_print_removed_eol_nl
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fn_script_log_info "Backup ${backupname}.tar.gz: REMOVED"
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# Remove lock file
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rm -f "${tmpdir}/.backup.lock"
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core_exit.sh
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}
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# Check if a backup is pending or has been aborted using .backup.lock
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fn_backup_check_lockfile(){
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if [ -f "${tmpdir}/.backup.lock" ]; then
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fn_print_info_nl "Lock file found: Backup is currently running"
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fn_script_log_error "Lock file found: Backup is currently running: ${tmpdir}/.backup.lock"
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core_exit.sh
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fi
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}
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# Initialisation
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fn_backup_init(){
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# Backup file name with servicename and current date
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backupname="${servicename}-$(date '+%Y-%m-%d-%H%M%S')"
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info_distro.sh
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fn_print_dots "Backup starting"
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fn_script_log_info "Backup starting"
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sleep 1
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fn_print_ok "Backup starting"
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sleep 1
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echo -ne "\n"
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if [ ! -d "${backupdir}" ]||[ "${backupcount}" == "0" ]; then
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fn_print_info_nl "There are no previous backups"
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else
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if [ "${lastbackupdaysago}" == "0" ]; then
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daysago="less than 1 day ago"
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elif [ "${lastbackupdaysago}" == "1" ]; then
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daysago="1 day ago"
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else
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daysago="${lastbackupdaysago} days ago"
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fi
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echo " * Previous backup was created ${daysago}, total size ${lastbackupsize}"
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sleep 1
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fi
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}
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# Check if server is started and wether to stop it
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fn_backup_stop_server(){
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check_status.sh
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# Server is stopped
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if [ "${status}" == "0" ]; then
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serverstopped="no"
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# Server is running and stoponbackup=off
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elif [ "${stoponbackup}" == "off" ]; then
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serverstopped="no"
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fn_print_warn_nl "${servicename} is currently running"
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echo " * Although unlikely; creating a backup while ${servicename} is running might corrupt the backup."
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fn_script_log_warn "${servicename} is currently running"
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fn_script_log_warn "Although unlikely; creating a backup while ${servicename} is running might corrupt the backup"
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# Server is running and will be stopped if stoponbackup=on or unset
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else
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fn_print_warn_nl "${servicename} will be stopped during the backup"
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fn_script_log_warn "${servicename} will be stopped during the backup"
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sleep 4
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serverstopped="yes"
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exitbypass=1
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command_stop.sh
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fi
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}
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# Create required folders
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fn_backup_dir(){
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# Create backupdir if it doesn't exist
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if [ ! -d "${backupdir}" ]; then
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mkdir -p "${backupdir}"
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fi
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}
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fn_backup_create_lockfile(){
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# Create lockfile
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date > "${tmpdir}/.backup.lock"
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fn_script_log_info "Lockfile generated"
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fn_script_log_info "${tmpdir}/.backup.lock"
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# trap to remove lockfile on quit.
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trap fn_backup_trap INT
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}
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# Compressing files
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fn_backup_compression(){
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# Tells how much will be compressed using rootdirduexbackup value from info_distro and prompt for continue
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fn_print_info "A total of ${rootdirduexbackup} will be compressed."
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fn_script_log_info "A total of ${rootdirduexbackup} will be compressed: ${backupdir}/${backupname}.tar.gz"
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sleep 2
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fn_print_dots "Backup (${rootdirduexbackup}) ${backupname}.tar.gz, in progress..."
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fn_script_log_info "backup ${rootdirduexbackup} ${backupname}.tar.gz, in progress"
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tar -czf "${backupdir}/${backupname}.tar.gz" -C "${rootdir}" --exclude "${backupdir}" ./*
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local exitcode=$?
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if [ ${exitcode} -ne 0 ]; then
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fn_print_fail_eol
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fn_script_log_fatal "Backup in progress: FAIL"
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echo "${tarcmd}" | tee -a "${lgsmlog}"
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fn_print_fail_nl "Starting backup"
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fn_script_log_fatal "Starting backup"
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else
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fn_print_ok_eol
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sleep 1
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fn_print_ok_nl "Completed: ${backupname}.tar.gz, total size $(du -sh "${backupdir}/${backupname}.tar.gz" | awk '{print $1}')"
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fn_script_log_pass "Backup created: ${backupname}.tar.gz, total size $(du -sh "${backupdir}/${backupname}.tar.gz" | awk '{print $1}')"
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fi
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# Remove lock file
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rm -f "${tmpdir}/.backup.lock"
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}
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# Clear old backups according to maxbackups and maxbackupdays variables
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fn_backup_prune(){
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# Clear if backup variables are set
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if [ -n "${maxbackups}" ]&&[ -n "${maxbackupdays}" ]; then
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# How many backups there are
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info_distro.sh
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# How many backups exceed maxbackups
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backupquotadiff=$((backupcount-maxbackups))
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# How many backups exceed maxbackupdays
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backupsoudatedcount=$(find "${backupdir}"/ -type f -name "*.tar.gz" -mtime +"${maxbackupdays}"|wc -l)
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# If anything can be cleared
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if [ "${backupquotadiff}" -gt "0" ]||[ "${backupsoudatedcount}" -gt "0" ]; then
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fn_print_dots "Pruning"
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fn_script_log_info "Backup pruning activated"
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sleep 1
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fn_print_ok_nl "Pruning"
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sleep 1
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# If maxbackups greater or equal to backupsoutdatedcount, then it is over maxbackupdays
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if [ "${backupquotadiff}" -ge "${backupsoudatedcount}" ]; then
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# Display how many backups will be cleared
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echo " * Pruning: ${backupquotadiff} backup(s) has exceeded the ${maxbackups} backups limit"
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fn_script_log_info "Pruning: ${backupquotadiff} backup(s) has exceeded the ${maxbackups} backups limit"
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sleep 1
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fn_print_dots "Pruning: Clearing ${backupquotadiff} backup(s)"
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fn_script_log_info "Pruning: Clearing ${backupquotadiff} backup(s)"
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sleep 1
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# Clear backups over quota
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find "${backupdir}"/ -type f -name "*.tar.gz" -printf '%T@ %p\n' | sort -rn | tail -${backupquotadiff} | cut -f2- -d" " | xargs rm
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fn_print_ok_nl "Pruning: Clearing ${backupquotadiff} backup(s)"
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fn_script_log_pass "Pruning: Cleared ${backupquotadiff} backup(s)"
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# If maxbackupdays is used over maxbackups
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elif [ "${backupquotadiff}" -lt "${backupsoudatedcount}" ]; then
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# Display how many backups will be cleared
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echo " * Pruning: ${backupsoudatedcount} backup(s) are older than ${maxbackupdays} days."
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fn_script_log_info "Pruning: ${backupsoudatedcount} backup(s) older than ${maxbackupdays} days."
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sleep 1
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fn_print_dots "Pruning: Clearing ${backupquotadiff} backup(s)."
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fn_script_log_info "Pruning: Clearing ${backupquotadiff} backup(s)"
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sleep 1
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# Clear backups over quota
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find "${backupdir}"/ -type f -mtime +"${maxbackupdays}" -exec rm -f {} \;
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fn_print_ok_nl "Pruning: Clearing ${backupquotadiff} backup(s)"
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fn_script_log_pass "Pruning: Cleared ${backupquotadiff} backup(s)"
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fi
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sleep 1
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fi
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fi
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}
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# Restart the server if it was stopped for the backup
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fn_backup_start_server(){
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if [ "${serverstopped}" == "yes" ]; then
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exitbypass=1
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command_start.sh
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fi
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}
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# Run functions
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fn_backup_check_lockfile
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fn_backup_create_lockfile
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fn_backup_init
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fn_backup_stop_server
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fn_backup_dir
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fn_backup_compression
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fn_backup_prune
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fn_backup_start_server
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core_exit.sh
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