configs/arch-config/scripts/pieces/thunderbird-backup.sh

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#!/usr/bin/env sh
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set -euo pipefail
# exit thunderbird
fn_killbird() {
# kill thunderbird
pkill thunderbird
# wait for a bit before checking again
sleep 5s
}
# check if thunderbird is running
fn_checkbird() {
# check for thunderbird using pgrep
while [ $(pgrep thunderbird) ]; do
# get user input whether to shut down or exit
# default is exiting
read -p "Thunderbird is running. Do you want to shut it down now? [yN]: " yn
case $yn in
# handle closing thunderbird
[Yy]*)
fn_killbird
break
;;
# explicit no, exit
[Nn]*)
echo "Please close Thunderbird and try again."
exit
;;
# implicit no, exit
*)
echo "Please close Thunderbird and try again."
exit
;;
esac
done
}
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# prompt for password
echo -n "Password: "
read -s -r pass
echo
# prompt a second time
echo -n "Repeat Password: "
read -s -r pass2
echo
# check correctness
if [ ! "$pass" = "$pass2" ]; then
echo "Passwords don't match!"
exit
fi
# check if thunderbird is running
fn_checkbird
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# go to home dir
cd "$HOME"
# get current date
currdate="$(date +%Y-%m-%d)"
# create backup directory
mkdir -p "$HOME/thunderbird-backup/default-release"
# copy stuff to backup directory
# * breaks with quotes
cp -r $HOME/.thunderbird/*.default-release/* "$HOME/thunderbird-backup/default-release"
# create archive from backup
tar -cv -I"zstd -19 -T0" -f thunderbird-backup-${currdate}.tar.zst thunderbird-backup/default-release
# remove backup dir
rm -rf "$HOME/thunderbird-backup"
# encrypt backup archive
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echo "$pass" | gpg -c --batch --yes --passphrase-fd 0 thunderbird-backup-${currdate}.tar.zst
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# remove unencrypted archive
rm thunderbird-backup-${currdate}.tar.zst
# put encrypted archive into backups folder
mv thunderbird-backup-${currdate}.tar.zst.gpg "$HOME/Nextcloud/backups/"
# remove more than the last 3 backups
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mapfile -t old_backups < <(find "$HOME/Nextcloud/backups/" -name "thunderbird-backup-*\.tar.zst.gpg" | sort -r | tail -n +4)
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for backup in "${old_backups[@]}"; do
echo "Removing old backup. $backup"
rm "$backup"
done