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#!/bin/bash
# pacdiff : a simple pacnew/pacorig/pacsave updater
#
# Copyright (c) 2007 Aaron Griffin <aaronmgriffin@gmail.com>
# Copyright (c) 2013 Pacman Development Team <pacman-dev@archlinux.org>
#
# 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, see <http://www.gnu.org/licenses/>.
#
declare -r myname='pacdiff'
declare -r myver='@PACKAGE_VERSION@'
diffprog=${DIFFPROG:-vimdiff}
diffsearchpath=${DIFFSEARCHPATH:-/etc}
locate=0
USE_COLOR='y'
declare -a oldsaves
m4_include(../scripts/library/output_format.sh)
m4_include(../scripts/library/term_colors.sh)
usage() {
echo "$myname : a simple pacnew/pacorig/pacsave updater"
echo "Usage : $myname [-l]"
echo " -l/--locate makes $myname use locate rather than find"
echo " DIFFPROG variable allows to override the default vimdiff"
echo " DIFFSEARCHPATH allows to override the default /etc path"
echo "Example : DIFFPROG=meld DIFFSEARCHPATH=\"/boot /etc /usr\" $myname"
}
version() {
printf "%s %s\n" "$myname" "$myver"
echo 'Copyright (C) 2007 Aaron Griffin <aaronmgriffin@gmail.com>'
echo 'Copyright (C) 2013 Pacman Development Team <pacman-dev@archlinux.org>'
}
cmd() {
if [ $locate -eq 1 ]; then
locate -0 -e -b \*.pacnew \*.pacorig \*.pacsave '*.pacsave.[0-9]*'
else
find $diffsearchpath \( -name \*.pacnew -o -name \*.pacorig -o -name \*.pacsave -o -name '*.pacsave.[0-9]*' \) -print0
fi
}
if [ $# -gt 0 ]; then
case $1 in
-l|--locate)
locate=1;;
-V|--version)
version; exit 0;;
-h|--help)
usage; exit 0;;
*)
usage; exit 1;;
esac
fi
# see http://mywiki.wooledge.org/BashFAQ/020
while IFS= read -u 3 -r -d '' pacfile; do
file="${pacfile%.pac*}"
file_type="pac${pacfile##*.pac}"
# add matches for pacsave.N to oldsaves array, do not prompt
if [[ $file_type = pacsave.+([0-9]) ]]; then
oldsaves+=("$pacfile")
continue
fi
msg "%s file found for %s" "$file_type" "$file"
if [ ! -f "$file" ]; then
warning "$file does not exist"
rm -iv "$pacfile"
continue
fi
if cmp -s "$pacfile" "$file"; then
msg2 "Files are identical, removing..."
rm -v "$pacfile"
else
ask "(V)iew, (S)kip, (R)emove %s, (O)verwrite with %s, (Q)uit: [v/s/r/o/q] " "$file_type" "$file_type"
while read c; do
case $c in
q|Q) exit 0;;
r|R) rm -v "$pacfile"; break ;;
o|O) mv -v "$pacfile" "$file"; break ;;
v|V)
$diffprog "$pacfile" "$file"
rm -iv "$pacfile"; break ;;
s|S) break ;;
*) ask "Invalid answer. Try again: [v/s/r/o/q] "; continue ;;
esac
done
fi
done 3< <(cmd)
(( ${#oldsaves[@]} )) && warning "Ignoring %s" "${oldsaves[@]}"
exit 0
# vim: set ts=2 sw=2 noet:
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