snap-pac/snapper-pre

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#!/bin/bash
# snap-pac
# https://github.com/wesbarnett/snap-pac
# Copyright (C) 2016 James W. Barnett
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
# Takes a snapper pre snapshot before a pacman transaction
# Change this variable to include other configs in the pre snapshot
# You must also change it in the post snapshot script
CONFIGS="root"
#CONFIGS="root home"
PACMAN_CMD=$(ps -C pacman -o args=)
PREFILE=/usr/share/libalpm/hooks.bin/snap-pac/.pre
for x in $CONFIGS; do
snapper --config $x create --type pre --cleanup-algorithm number --print-number --description "$PACMAN_CMD" > $PREFILE"_"$x
done