#!/usr/bin/env bash script_name="$(basename $(realpath $0))" working_dir="$(dirname $(realpath $0))" conf_file="${working_dir}/conf/${script_name%%.*}.conf" LOCK_DIR="/tmp/$(basename $0).$$.LOCK" log_file="${LOCK_DIR}/${script_name%%.*}.log" backup_date="$(date +%Y-%m-%d-%H%M)" declare -a files_backuped_arr=() declare -a dirs_backuped_arr=() # ---------- # Base Function(s) # ---------- usage() { [[ -n "$1" ]] && error "$1" [[ $terminal ]] && echo -e " \033[1mUsage:\033[m $(basename $0) \033[1mDescription\033[m Scripts syncs nextcloud accounts. \033[1mOptions\033[m All Options and Parameters read from configuration file. \033[1mFiles\033[m Configuration file: $conf_file " clean_up 1 } clean_up() { # Perform program exit housekeeping rm -rf "$LOCK_DIR" blank_line exit $1 } echononl(){ if $terminal ; then echo X\\c > /tmp/shprompt$$ if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then echo -e -n " $*\\c" 1>&2 else echo -e -n " $*" 1>&2 fi rm /tmp/shprompt$$ fi } fatal(){ echo "" if $terminal ; then echo -e " [ \033[31m\033[1mFatal\033[m ] $*" else echo -e " [ Fatal ] $*" fi echo "" if $terminal ; then echo -e " \033[1mScript terminated\033[m.." else echo -e " Script terminated.." fi echo "" rm -rf $LOCK_DIR exit 1 } error (){ echo "" if $terminal ; then echo -e " [ \033[31m\033[1mError\033[m ] $*" else echo " [ Error ] $*" fi echo "" } warn (){ if $LOGGING || $terminal ; then echo "" if $terminal ; then echo -e " [ \033[33m\033[1mWarn\033[m ] $*" else echo " [ Warn ] $*" fi echo "" fi } info (){ if $LOGGING || $terminal ; then echo "" if $terminal ; then echo -e " [ \033[32m\033[1mInfo\033[m ] $*" else echo " [ Info ] $*" fi echo "" fi } ok (){ if $LOGGING || $terminal ; then echo "" if $terminal ; then echo -e " [ \033[32m\033[1mOk\033[m ] $*" else echo " [ Ok ] $*" fi echo "" fi } echo_done() { if $terminal ; then echo -e "\033[75G[ \033[32mdone\033[m ]" fi } echo_ok() { if $terminal ; then echo -e "\033[75G[ \033[32mok\033[m ]" fi } echo_warn() { if $terminal ; then echo -e "\033[75G[ \033[33mwarn\033[m ]" fi } echo_failed(){ if $terminal ; then echo -e "\033[75G[ \033[1;31mfailed\033[m ]" fi } echo_skipped() { if $terminal ; then echo -e "\033[75G[ \033[90m\033[1mskipped\033[m ]" fi } echo_wait(){ if $terminal ; then echo -en "\033[75G[ \033[5m\033[1m...\033[m ]" fi } trim() { local var="$*" var="${var#"${var%%[![:space:]]*}"}" # remove leading whitespace characters var="${var%"${var##*[![:space:]]}"}" # remove trailing whitespace characters echo -n "$var" } blank_line() { if $terminal ; then echo "" fi } # - Backup file or directory # - backup() { is_directory=false if [[ -z "$1" ]] ; then error "No file/directory for backup given!" return elif [[ -h "$1" ]] ; then _source="$(realpath $1)" warn "'$1' is a symlink to $_source." elif [[ ! -d "$1" ]] && [[ ! -f "$1" ]] ; then warn "'$1' not found. Backup skipped." return else _source="$(realpath $1)" fi if [[ -d "$_source" ]]; then is_directory=true echononl "Backup directory '$_source' .." else echononl "Backup file '$_source' .." fi cp -a "$_source" "${_source}.$backup_date" > $log_file 2>&1 if [[ $? -eq 0 ]] ; then echo_ok if $is_directory ; then dirs_backuped_arr+=("$_source") else files_backuped_arr+=("$_source") fi else echo_failed error "$(cat "$log_file")" fi } # - Remove script generated backups, if source wasn't changed # - rm_unchanged_backup() { if [[ ${#files_backuped_arr[@]} -gt 0 ]] ; then for _file in "${files_backuped_arr[@]}" ; do if $(diff "$_file" "${_file}.$backup_date" > /dev/null 2>&1) ; then echononl "File '$(basename "${_file}")' wasn't changed.\n Delete the previous generated backup. .." rm "${_file}.$backup_date" > "$log_file" 2>&1 if [[ $? -eq 0 ]]; then echo_ok else echo_failed error "$(cat "$log_file")" fi blank_line fi done fi if [[ ${#dirs_backuped_arr[@]} -gt 0 ]] ; then for _dir in "${dirs_backuped_arr[@]}" ; do if $(diff -Nur "$_dir" "${_dir}.$backup_date" > /dev/null 2>&1) ; then echononl "Directory '$(basename "${_dir}")' wasn't changed.\n Delete the previous generated backup. .." rm -rf "${_dir}.$backup_date" > "$log_file" 2>&1 if [[ $? -eq 0 ]]; then echo_ok else echo_failed error "$(cat "$log_file")" fi blank_line fi done fi } # ---------- # - Jobhandling # ---------- # - If job already runs, stop execution.. # - if mkdir "$LOCK_DIR" 2> /dev/null ; then # - Remove lockdir when the script finishes, or when it receives a signal # - trap clean_up SIGHUP SIGINT SIGTERM else msg="A previos instance of script \"`basename $0`\" seems already be running." echo "" if $terminal ; then echo -e "[ \033[31m\033[1mFatal\033[m ]: $msg" echo "" echo -e " \033[31m\033[1mScript was interupted\033[m!" else echo " [ Fatal ]: $msg" echo "" echo " Script was interupted!" fi echo exit 1 fi # ---------- # - Some checks .. # ---------- # - Running in a terminal? # - if [[ -t 1 ]] ; then terminal=true else terminal=false fi # -Is systemd supported on this system? # - systemd_supported=false systemd=$(which systemd) systemctl=$(which systemctl) if [[ -n "$systemd" ]] && [[ -n "$systemctl" ]] ; then systemd_supported=true fi # - Print help? # - if [[ "$(trim $*)" = "-h" ]] || [[ "$(trim $*)" = "--help" ]] ; then usage fi if [[ -z "$(which basename)" ]]; then fatal 'It seems "basename" is not installed, but needed!' fi if [[ -z "$(which realpath)" ]]; then fatal 'It seems "realpath" is not installed, but needed!' fi # ========== # - Begin Main Script # ========== # ---------- # - Headline # ---------- if $terminal ; then echo "" echo -e "\033[1m----------\033[m" echo -e "\033[32m\033[1mRunning script \033[m\033[1m$script_name\033[32m .. \033[m" echo -e "\033[1m----------\033[m" fi # ---------- # Read Configurations from $conf_file # ---------- # - Give your default values here # - DEFAULT_PARAMS="--non-interactive" CMD="$(which nextcloudcmd)" if [[ ! -x "$CMD" ]] ; then fatal "Command 'nextcloudcmd' not found" fi if [[ -f "$conf_file" ]]; then source "$conf_file" else fatal "No configuration file '$conf_file' present." fi [[ -z "$(trim "$NEXTCLOUD_SERVER_URL")" ]] && fatal "Parameter 'NEXTCLOUD_SERVER_URL' not set but is reqired!" [[ -z "$(trim "$NEXTCLOUD_ACCOUNTS")" ]] && fatal "No accounts for syncing given - Parmeter 'NEXTCLOUD_ACCOUNTS'!" [[ -z "$(trim "$LOCAL_BASE_SYNC_DIR")" ]] && fatal "No local sync directory given - Parameter 'LOCAL_BASE_SYNC_DIR'!" [[ -z "$(trim "$LOCAL_BASE_SYNC_DIR")" ]] && PARAMS="${DEFAULT_PARAMS}" declare -a nextcloud_account_arr for _account in $NEXTCLOUD_ACCOUNTS ; do nextcloud_account_arr+=("$_account") done # ---------- # - Some pre-script tasks .. # ---------- if $terminal ; then echo "" echo "" echo -e " \033[1mDoing some pre-script tasks ..\033[m" echo "" fi echononl "Create local sync directory '$LOCAL_BASE_SYNC_DIR'.." if [[ ! -d "$LOCAL_BASE_SYNC_DIR" ]] ; then mkdir "$LOCAL_BASE_SYNC_DIR" > $log_file 2>&1 if [[ $? -eq 0 ]] ; then echo_ok else echo_failed error "$(cat "$log_file")" fi else echo_skipped fi # ---------- # - Main part of script # ---------- if $terminal ; then echo "" echo "" echo -e " \033[1mMain part of script ..\033[m" echo "" fi for _val in "${nextcloud_account_arr[@]}" ; do IFS=':' read -a _val_arr <<< "${_val}" LOCAL_SYNC_DIR="${LOCAL_BASE_SYNC_DIR}/${_val_arr[0]}" if [[ ! -d "$LOCAL_SYNC_DIR" ]] ; then echononl "Create directory '$LOCAL_SYNC_DIR'.." mkdir "$LOCAL_SYNC_DIR" > $log_file 2>&1 if [[ $? -eq 0 ]] ; then echo_ok else echo_failed error "$(cat "$log_file")" continue fi fi echononl "Backup nextcloud account '${_val_arr[0]}'.." $CMD $PARAMS -u "${_val_arr[0]}" -p "${_val_arr[1]}" $LOCAL_SYNC_DIR $NEXTCLOUD_SERVER_URL > $log_file 2>&1 if [[ $? -eq 0 ]] ; then echo_ok else echo_failed error "$(cat "$log_file")" fi done # ---------- # - Some post-script tasks .. # ---------- if $terminal ; then echo "" echo "" echo -e " \033[1mDoing some post-script tasks ..\033[m" echo "" fi # - Remove generated backup file if source wasn't changed. # - rm_unchanged_backup clean_up 0