dotfiles/.bin/OLD/tapebackup.sh.orig

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#!/bin/sh
export LANG="UTF-16"
# v0.6 add finish time prediction
# v0.5 change + bsd tar
# v0.4 read with 4m buffer, write with 128k
# v0.3 added mbuffer to restore
# v0.2 merge restore/backup script and add parameter handling
# v0.1 initial version
### CONFIG ###
_key="/etc/keyfile"
_dev="/dev/nsa0"
_buffer="8G"
_tapeln="10320" # full tape read/write time in seconds
### FUNCTIONS ###
V=0.6
usage() {
printf '%s%s\n%s\n%s\n%s\n\n' \
"$0" ": <mode> <directory>" \
" -b backup mode" \
" -r restore mode" \
" <directory> directory to backup or restore to"
exit 2
}
_src="$(readlink -f "$2")"
[ -z $_src ] && printf 'File or Directory does not exist: %s\n\n' "$1" && usage
dates() {
printf 'Start: %s\nEnd: %s (predicted)\n' "$(date)" "$(date -r $(($(date +%s)+$_tapeln)))"
}
backup() {
printf 'Calculating...\n'
printf 'Backing up %s with a total size of %s\n' "$_src" "$(du -hs $_src | awk '{ print $1 }')"
dates
tar -b 2048 -cf - "$_src" \
| zstd -T0 \
| openssl enc -e -pbkdf2 -aes256 -pass file:$_key \
| mbuffer -v 1 -t -m $_buffer -P 90 -s 4096k \
| dd of=$_dev ibs=4096k obs=128k
printf 'End: %s\n' "$(date)"
}
restore() {
printf 'Restoring data to %s (logging to restore.log)\n' "$_src"
dates | tee restore.log
dd if=$_dev ibs=128k obs=4096k \
| openssl enc -d -pbkdf2 -aes256 -pass file:$_key \
| zstd -T0 -d \
| mbuffer -v 1 -t -m $_buffer -s 4096k \
| tar -C "$_src" -b 2048 -xvf - >> restore.log 2>&1
printf 'End: %s\n' "$(date)" | tee restore.log
}
list() {
printf 'Reading Index\n'
printf 'Start: %s\n Predicted End: %s\n'\
"$(date)" "date -r $(($(date +%s)+$_tapeln))"
dd if=$_dev ibs=128k obs=4096k \
| openssl enc -d -pbkdf2 -aes256 -pass file:$_key \
| gtar --zstd -tf /dev/stdin
date
}
### MAIN PROGRAM ###
blogo() {
printf '%s%s%s\n\n' \
'
______ ____ __
/_ __/___ _____ ___ / __ )____ ______/ /____ ______
/ / / __ `/ __ \/ _ \ / __ / __ `/ ___/ //_/ / / / __ \
/ / / /_/ / /_/ / __/ / /_/ / /_/ / /__/ ,< / /_/ / /_/ /
/_/ \__,_/ .___/\___/ /_____/\__,_/\___/_/|_|\__,_/ .___/
/_/ CODEVOID BACKUP TOOL v'"$V"' /_/
'
}
rlogo() {
printf '%s%s\n\n' \
'
______ ____ __
/_ __/___ _____ ___ / __ \___ _____/ /_____ ________
/ / / __ `/ __ \/ _ \ / /_/ / _ \/ ___/ __/ __ \/ ___/ _ \
/ / / /_/ / /_/ / __/ / _, _/ __(__ ) /_/ /_/ / / / __/
/_/ \__,_/ .___/\___/ /_/ |_|\___/____/\__/\____/_/ \___/
/_/ CODEVOID BACKUP TOOL v'"$V"
}
case $1 in
-b) blogo;
backup;
;;
-r) rlogo;
restore;
;;
*) usage;
;;
esac