From fd32511cf5602dd72f6f6da98c85d8234c596b1e Mon Sep 17 00:00:00 2001
From: RealStickman <mrc@frm01.net>
Date: Sun, 10 Apr 2022 14:56:21 +0200
Subject: [PATCH] Thunderbird backup and restore scripts

---
 .../scripts/pieces/thunderbird-backup.sh      | 55 +++++++++++++++++++
 .../scripts/pieces/thunderbird-restore.sh     | 34 ++++++++++++
 2 files changed, 89 insertions(+)
 create mode 100755 arch-config/scripts/pieces/thunderbird-backup.sh
 create mode 100755 arch-config/scripts/pieces/thunderbird-restore.sh

diff --git a/arch-config/scripts/pieces/thunderbird-backup.sh b/arch-config/scripts/pieces/thunderbird-backup.sh
new file mode 100755
index 00000000..604899cc
--- /dev/null
+++ b/arch-config/scripts/pieces/thunderbird-backup.sh
@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# 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
+
+# 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
+echo '$pass' | gpg -c --batch --yes --passphrase-fd 0 thunderbird-backup-${currdate}.tar.zst
+
+# remove unencrypted archive
+rm thunderbird-backup-${currdate}.tar.zst
+
+# put encrypted archive into backups folder
+mv thunderbird-backup-${currdate}.tar.zst.gpg "$HOME/Nextcloud/backups/"
+
+# remove more than the last 3 backups
+#find "$HOME/Nextcloud/backups/" -name "thunderbird-backup-*\.tar.zst.gpg" | sort -r | tail -n +4
+mapfile -t old_backups < <( find "$HOME/Nextcloud/backups/" -name "thunderbird-backup-*\.tar.zst.gpg" | sort -r | tail -n +4 )
+
+for backup in "${old_backups[@]}"; do
+    echo "Removing old backup. $backup"
+    rm "$backup"
+done
diff --git a/arch-config/scripts/pieces/thunderbird-restore.sh b/arch-config/scripts/pieces/thunderbird-restore.sh
new file mode 100755
index 00000000..84de8038
--- /dev/null
+++ b/arch-config/scripts/pieces/thunderbird-restore.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# prompt for password
+echo -n "Password: "
+read -s -r pass
+echo
+
+# go to home dir
+cd "$HOME"
+
+# find latest backup version
+latestbackup="$(find "$HOME/Nextcloud/backups/" -name "thunderbird-backup-*\.tar.zst.gpg" | sort | tail -1)"
+
+# decrypt backup
+echo '$pass' | gpg --decrypt-file --batch --yes --passphrase-fd 0 "$latestbackup"
+
+# name of decrypted file
+latestdecrypted="${latestbackup%.gpg}"
+
+# expand archive
+tar -xvf "$latestdecrypted"
+
+# remove unencrypted archive
+rm "$latestdecrypted"
+
+# remove current thunderbird config
+rm -rf $HOME/.thunderbird/*.default-release/*
+
+# copy configuration
+cp -r $HOME/thunderbird-backup/default-release/* $HOME/.thunderbird/*.default-release/
+
+# remove folder
+rm -rf "$HOME/thunderbird-backup"