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make main script that is sourced

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This commit is contained in:
James Barnett 2016-04-25 15:24:34 -05:00
parent 96b282e4fa
commit 4f25ac388f
3 changed files with 54 additions and 31 deletions
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52
snap-pac Executable file
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@ -0,0 +1,52 @@
#!/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.
# Main script
if [ -f /etc/snap-pac.conf ]; then
source /etc/snap-pac.conf
else
echo "WARNING: /etc/snap-pac.conf is missing. Using default settings."
fi
declare -r cleanupalgo=${CLEANUP_ALGORITHM:-"number"}
declare -r description=${POST_DESCRIPTION:-"$(echo $(ps -C pacman -o args=) | sed 'sX/usr/bin/pacmanXpacmanXg')"}
declare -r configurations=${CONFIGS:-"root"}
declare -r prefile_prefix="/usr/share/libalpm/hooks.bin/snap-pac/.pre"
function pre
{
for x in $configurations; do
snapper --config $x create --type pre --cleanup-algorithm $cleanupalgo --print-number --description "$description" > $prefile_prefix"_"$x
done
}
function post
{
for x in $configurations; do
if [ -f $prefile_prefix"_"$x ]; then
snapper --config $x create --cleanup-algorithm $cleanupalgo --type post --pre-number $(cat $prefile_prefix"_"$x) --description "$description"
rm $prefile_prefix"_"$x
else
echo "WARNING: $prefile_prefix"_"$x does not exist, so no post snapshot will be taken. If you are initially installing snap-pac, this is normal."
fi
done
}

19
snapper-post
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@ -20,21 +20,4 @@
# Takes a snapper post snapshot after a pacman transaction
if [ -f /etc/snap-pac.conf ]; then
source /etc/snap-pac.conf
else
echo "WARNING: /etc/snap-pac.conf is missing. Using default settings."
fi
declare -r cleanupalgo=${CLEANUP_ALGORITHM:-"number"}
declare -r description=${POST_DESCRIPTION:-"$(echo $(ps -C pacman -o args=) | sed 'sX/usr/bin/pacmanXpacmanXg')"}
declare -r configurations=${CONFIGS:-"root"}
declare -r prefile_prefix="/usr/share/libalpm/hooks.bin/snap-pac/.pre"
for x in $configurations; do
if [ -f $prefile_prefix"_"$x ]; then
snapper --config $x create --cleanup-algorithm $cleanupalgo --type post --pre-number $(cat $prefile_prefix"_"$x) --description "$description"
rm $prefile_prefix"_"$x
else
echo "WARNING: $prefile_prefix"_"$x does not exist, so no post snapshot will be taken. If you are initially installing snap-pac, this is normal."
fi
done
source /usr/share/libalpm/hooks.bin/snap-pac/snap-pac; post

14
snapper-pre
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@ -20,16 +20,4 @@
# Takes a snapper pre snapshot before a pacman transaction
if [ -f /etc/snap-pac.conf ]; then
source /etc/snap-pac.conf
else
echo "WARNING: /etc/snap-pac.conf is missing. Using default settings."
fi
declare -r cleanupalgo=${CLEANUP_ALGORITHM:-"number"}
declare -r description=${POST_DESCRIPTION:-"$(echo $(ps -C pacman -o args=) | sed 'sX/usr/bin/pacmanXpacmanXg')"}
declare -r configurations=${CONFIGS:-"root"}
declare -r prefile_prefix="/usr/share/libalpm/hooks.bin/snap-pac/.pre"
for x in $configurations; do
snapper --config $x create --type pre --cleanup-algorithm $cleanupalgo --print-number --description "$description" > $prefile_prefix"_"$x
done
source /usr/share/libalpm/hooks.bin/snap-pac/snap-pac; pre