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@@ -2,17 +2,30 @@
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#
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## borg helper script for viewing and restoring backups
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##
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## script written by Asif Bacchus, last updated May 15, 2021.
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##
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## The author of this script is not affiliated with 'borgbackup' in any way and
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## does not warrant anything about this script, its operation, suitability or
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## fitness for use in any environment or under any conditions. You are using
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## this script entirely at your own risk.
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#
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### trap
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trap trapExit 1 2 3 6
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### functions
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cleanup () {
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cleanup() {
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# remove borg temp directory, if it exists
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# shellcheck disable=SC2154
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if [ -d "${borgBaseDir}/tmp" ]; then
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if ! rm -rf "${borgBaseDir}/tmp" > /dev/null 2>&1; then
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consoleError 3 "Script completed successfully but could not remove temporary directory at $borgBaseDir/tmp. Sorry to be messy."
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if ! rm -rf "${borgBaseDir}/tmp" >/dev/null 2>&1; then
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consoleError 3 "Script completed successfully but could not remove temporary directory at '$borgBaseDir/tmp'. Sorry to be messy."
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fi
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fi
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if [ -f "${restorePath}/touch.test" ]; then
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if ! rm -f "${restorePath}/touch.test" >/dev/null 2>&1; then
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consoleError 5 "Script completed successfully but could not remove test file at '$restorePath/touch.test'. Sorry to be messy."
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fi
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fi
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}
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@@ -23,45 +36,105 @@ consoleError() {
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exit "$1"
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}
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textblock() {
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scriptHelp() {
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printf "\n"
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textBlock "${bold}Usage: borghelper.sh [parameters]${norm}"
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printf "\n"
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textBlock "Simple script to read connection parameters from a flat text file and process borg 'info', 'list' and 'restore' commands without the very long command lines that are required when specifying repo names and passwords, etc."
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printf "\n"
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textBlock "${magenta}The script has the following parameters:${norm}"
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printf "\n"
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textBlock "${magenta}--- Required Parameters ---${norm}"
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printf "\n"
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textBlockParams "-v|--vars"
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textBlock "Path to the .borgvars file from which to read borg connection information. This is not required if run with '--makevars'."
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printf "\n"
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textBlock "${magenta}--- Operation Modes ---${norm}"
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printf "\n"
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textBlockParams "--makevars"
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textBlock "Create a sample .borgvars file that you can fill in and use with this script."
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textBlockParams "-i|--info"
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textBlock "Get information about a specified borg repo archive. Requires you supply '--archive'."
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textBlockParams "-l|--list"
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textBlock "List contents of a specified borg repo archive. Requires you supply '--archive'. You can optionally specify a file/pattern to search for using '--file'."
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textBlockParams "-la|--list-all"
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textBlock "List all available archives within the repo specified in your .borgvars file."
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textBlockParams "-r|--restore"
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textBlock "Restore the specified borg repo archive/file(s). Requires you supply '--archive'."
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printf "\n"
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textBlock "${magenta}--- Selector Parameters ---${norm}"
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printf "\n"
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textBlockParams "-a|--archive"
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textBlock "The archive within your borg repo you wish to work with."
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textBlockParams "--exclude"
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textBlock "Pattern (python/borg) of files to exclude from a restore operation."
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textBlockParams "-f|--file"
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textBlock "Specific file/pattern (python/borg) within an archive for which you want to restore or search. Requires that you supply '--archive'."
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textBlockParams "-p|--path"
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textBlock "Path to which you want your archive/files restored. This script will attempt to create the directory for you if it does not already exist."
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printf "\n"
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textBlock "${magenta}--- Restore Options ---${norm}"
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printf "\n"
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textBlockParams "--progress"
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textBlock "Display progress indicator during restore operations. WARNING: This can drastically slow down operations on larger archives!"
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textBlockParams "--verbose"
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textBlock "List the individual files being processed during restore operations."
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printf "\n"
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textBlock "${magenta}--- Other Parameters ---${norm}"
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printf "\n"
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textBlockParams "-h|-?|--help"
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textBlock "This help screen."
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printf "\n"
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exit 0
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}
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textBlock() {
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printf "%s\n" "$1" | fold -w "$width" -s
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}
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trapExit () {
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textBlockParams() {
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printf "%s%s%s\n" "$cyan" "$1" "$norm"
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}
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trapExit() {
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cleanup
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printf "%s\nScript execution terminated via signal.\n\n%s" "$err" "$norm"
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exit 99
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}
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### text formatting presets
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if command -v tput > /dev/null; then
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if command -v tput >/dev/null; then
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bold=$(tput bold)
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cyan=$(tput setaf 6)
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err=$(tput bold)$(tput setaf 1)
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magenta=$(tput setaf 5)
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norm=$(tput sgr0)
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width=$(tput cols)
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else
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bold=""
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cyan=""
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err="[ERROR] "
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magenta=""
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norm=""
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width=80
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fi
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### pre-requisites
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# is user root?
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if [ ! "$( id -u )" -eq 0 ]; then
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if [ ! "$(id -u)" -eq 0 ]; then
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consoleError 1 'You must be root to run this script.'
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fi
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# has a parameter been passed to this script?
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if [ -z "$1" ]; then
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consoleError 1 "No operation requested. Please run this script with '--help' for valid parameters."
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scriptHelp
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fi
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# process startup parameters
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while [ $# -gt 0 ]; do
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case "$1" in
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-a|--archive)
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-a | --archive)
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# name of backup archive
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if [ -z "$2" ]; then
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consoleError 1 "Please provide the name of the backup archive you want to work with or use '--list-all' to get a full list."
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@@ -77,29 +150,28 @@ while [ $# -gt 0 ]; do
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exclusions="$2"
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shift
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;;
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-f|--file)
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# specific file to restore
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-f | --file)
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# specific file/pattern to restore
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if [ -z "$2" ]; then
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consoleError 1 'Please provide the name of the specific file you want to restore.'
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consoleError 1 'Please provide the name of the specific file/pattern for which you want to restore or search.'
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fi
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fileName="$2"
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shift
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;;
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-h|-\?|--help)
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-h | -\? | --help)
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# display help
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printf "\nStill working on the help text :-)\n\n"
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exit 0
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scriptHelp
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;;
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-i|--info)
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-i | --info)
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# show archive information
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operation='info'
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;;
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-l|--list)
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-l | --list)
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# list contents of specific backup
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operation='viewarchive'
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;;
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-la|--list-all)
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-la | --list-all)
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# list all backup archives
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operation='listall'
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;;
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@@ -107,7 +179,7 @@ while [ $# -gt 0 ]; do
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# make a borgvars template file
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operation='makevars'
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;;
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-p|--path)
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-p | --path)
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# path to restore files
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if [ -z "$2" ]; then
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consoleError 1 'Please specify a path where you want files restored.'
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@@ -119,11 +191,11 @@ while [ $# -gt 0 ]; do
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# show progress
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commonOptions="$commonOptions --progress"
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;;
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-r|--restore)
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-r | --restore)
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# restore archive/file
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operation='restore'
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;;
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-v|--vars)
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-v | --vars)
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# location of borgvars file
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if [ -z "$2" ]; then
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consoleError 1 'Please provide the path to the file with your borg connection information.'
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@@ -148,10 +220,9 @@ while [ $# -gt 0 ]; do
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shift
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done
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### process 'makevars' operation
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if [ "$operation" = 'makevars' ]; then
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if ! printf "sshKeyFile=\nborgBaseDir=\nborgRepo=\nborgRepoPassword=\nborgRemote=\n" > ./sample.borgvars; then
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if ! printf "sshKeyFile=\nborgBaseDir=\nborgRepo=\nborgRepoPassword=\nborgRepoKey=\nborgRemote=\n" >./sample.borgvars; then
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consoleError 4 'Could not write sample borgvars file.'
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else
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exit 0
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@@ -197,17 +268,47 @@ fi
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if [ "$commonOptions" ]; then commonOptions=${commonOptions##[[:space:]]}; fi
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if [ "$restoreOptions" ]; then restoreOptions=${restoreOptions##[[:space:]]}; fi
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# check/create restore path
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if [ "$operation" = 'restore' ]; then
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if [ -d "$restorePath" ]; then
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# convert to absolute path
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restorePath=$(
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cd "$restorePath" ||
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consoleError 5 'Cannot access specified restore directory.'
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pwd -P
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)
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if ! touch "${restorePath}/touch.test" >/dev/null 2>&1; then
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consoleError 5 'Cannot write to specified restore directory.'
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fi
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else
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if ! mkdir -p "${restorePath}" >/dev/null 2>&1; then
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consoleError 5 'Cannot create specified restore directory.'
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else
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# convert to absolute path
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restorePath=$(
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cd "$restorePath" ||
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consoleError 5 'Cannot access specified restore directory.'
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pwd -P
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)
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if ! touch "${restorePath}/touch.test" >/dev/null 2>&1; then
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consoleError 5 'Cannot write to specified restore directory.'
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fi
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fi
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fi
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fi
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### read borg information file
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# check if file was provided as a relative or absolute path
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case "${varsFile}" in
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/*)
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/*)
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# absolute path, no need to rewrite variable
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# shellcheck disable=SC1090
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. "${varsFile}"
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;;
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*)
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*)
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# relative path, prepend './' to create absolute path
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# shellcheck disable=SC1090
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. "./${varsFile}"
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;;
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esac
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@@ -221,6 +322,7 @@ fi
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export BORG_BASE_DIR="${borgBaseDir%/}"
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## check path to SSH keyfile
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# shellcheck disable=SC2154
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if [ -z "${sshKeyFile}" ]; then
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consoleError 2 "$varsFile: 'sshKeyFile' is not specified."
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elif [ ! -f "${sshKeyFile}" ]; then
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@@ -229,12 +331,14 @@ fi
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export BORG_RSH="ssh -i ${sshKeyFile}"
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# check borg repo connect string
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# shellcheck disable=SC2154
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if [ -z "${borgRepo}" ]; then
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consoleError 2 "$varsFile: 'borgRepo' is not specified."
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fi
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export BORG_REPO="${borgRepo}"
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# check borg repo password
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# shellcheck disable=SC2154
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if [ -n "${borgRepoPassword}" ]; then
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export BORG_PASSPHRASE="${borgRepoPassword}"
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elif [ "${borgRepoPassword}" = 'none' ]; then
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@@ -243,9 +347,15 @@ else
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consoleError 2 "$varsFile: 'borgRepoPassword' must be specified or must be 'none' if no password has been set (VERY INSECURE!)."
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fi
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# export borg remote path, if specified
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if [ -n "${borgRemote}" ]; then export BORG_REMOTE_PATH="${borgRemote}"; fi
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# check borg keyfile if supplied
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# shellcheck disable=SC2154
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if [ -n "${borgRepoKey}" ]; then
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export BORG_KEY_FILE="${borgRepoKey}"
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fi
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# export borg remote path, if specified
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# shellcheck disable=SC2154
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if [ -n "${borgRemote}" ]; then export BORG_REMOTE_PATH="${borgRemote}"; fi
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### create borg temp dir:
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## python requires a writable temporary directory when unpacking borg and
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@@ -261,7 +371,6 @@ if [ ! -d "${borgBaseDir}/tmp" ]; then
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fi
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export TMPDIR="${borgBaseDir}/tmp"
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### execute borg operations
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# info operations
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@@ -271,37 +380,45 @@ if [ "$operation" = 'info' ]; then
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elif [ "$operation" = 'listall' ]; then
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borg list
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elif [ "$operation" = 'viewarchive' ]; then
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if [ "$fileName" ]; then
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borg list ::"${archiveName}" "${fileName}"
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else
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borg list ::"${archiveName}"
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fi
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# restore operations
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elif [ "$operation" = 'restore' ]; then
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cd "$restorePath" || consoleError 4 'Could not change to restore directory.'
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if [ -z "$fileName" ]; then
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# restore entire archive
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|
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if [ "$exclusions" ]; then
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# shellcheck disable=SC2086
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borg --show-rc ${commonOptions} extract ${restoreOptions} ::"${archiveName}" --exclude "${exclusions}"
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else
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# shellcheck disable=SC2086
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|
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borg --show-rc ${commonOptions} extract ${restoreOptions} ::"${archiveName}"
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|
|
fi
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elif [ "$fileName" ]; then
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|
|
# restore file/pattern
|
|
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|
|
if [ "$exclusions" ]; then
|
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|
|
# shellcheck disable=SC2086
|
|
|
|
|
borg --show-rc ${commonOptions} extract ${restoreOptions} ::"${archiveName}" "${fileName}" --exclude "${exclusions}"
|
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|
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else
|
|
|
|
|
# shellcheck disable=SC2086
|
|
|
|
|
borg --show-rc ${commonOptions} extract ${restoreOptions} ::"${archiveName}" "${fileName}"
|
|
|
|
|
fi
|
|
|
|
|
fi
|
|
|
|
|
fi
|
|
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|
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|
|
### exit gracefully
|
|
|
|
|
cleanup
|
|
|
|
|
exit 0
|
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|
|
|
|
### exit codes
|
|
|
|
|
# 0: no errors, script completed successfully
|
|
|
|
|
# 1: parameter error (missing, non-existant or invalid input)
|
|
|
|
|
# 1: parameter error (missing, non-existent or invalid input)
|
|
|
|
|
# 2: parameter missing/invalid in .borgvars file
|
|
|
|
|
# 3: could not create/remove borg tmp directory
|
|
|
|
|
# 4: could not write sample borgvars file (permissions?)
|
|
|
|
|
# 5: cannot access/create/write to restore path or could not remove test file
|
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#EOF
|
Asif Bacchus
Asif Bacchus