1 files changed, 80 insertions, 0 deletions
diff --git a/contrib/pacdiff.in b/contrib/pacdiff.in
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index 00000000..ac4ce893
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+++ b/contrib/pacdiff.in
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+#!@BASH_SHELL@
+#   pacdiff : a simple pacnew/pacorig/pacsave updater
+#
+#   Copyright (c) 2007 Aaron Griffin <aaronmgriffin@gmail.com>
+#
+#   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/>.
+#
+
+diffprog=${DIFFPROG:-vimdiff}
+diffsearchpath=${DIFFSEARCHPATH:-/etc}
+locate=0
+
+usage() {
+	echo "pacdiff : a simple pacnew/pacorig/pacsave updater"
+	echo "Usage : pacdiff [-l]"
+	echo "  -l/--locate makes pacdiff 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\" pacdiff"
+}
+
+cmd() {
+	if [ $locate -eq 1 ]; then
+		locate -0 -e -b \*.pacnew \*.pacorig \*.pacsave
+	else
+		find $diffsearchpath \( -name \*.pacnew -o -name \*.pacorig -o -name \*.pacsave \) -print0
+	fi
+}
+
+if [ $# -gt 0 ]; then
+	case $1 in
+		-l|--locate)
+		locate=1;;
+		*)
+		usage; exit 0;;
+	esac
+fi
+
+# see http://mywiki.wooledge.org/BashFAQ/020
+while IFS= read -u 3 -r -d '' pacfile; do
+	file="${pacfile%.pac*}"
+	echo "File: $file"
+	if [ ! -f "$file" ]; then
+		echo "  $file does not exist"
+		rm -i "$pacfile"
+		continue
+	fi
+	check="$(cmp "$pacfile" "$file")"
+	if [ -z "${check}" ]; then
+		echo "  Files are identical, removing..."
+		rm "$pacfile"
+	else
+		echo -n "  File differences found. (V)iew, (S)kip, (R)emove: [v/s/r] "
+		while read c; do
+			case $c in
+				r|R) rm "$pacfile"; break ;;
+				v|V)
+				$diffprog "$pacfile" "$file"
+				rm -i "$pacfile"; break ;;
+				s|S) break ;;
+				*) echo -n "  Invalid answer. Try again: [v/s/r] "; continue ;;
+			esac
+		done
+	fi
+done 3< <(cmd)
+
+exit 0
+
+# vim: set ts=2 sw=2 noet: