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#!/bin/sh
# my-diff-prev.sh -- diff against previous version
# Copyright 2009, 2010, 2011, 2012 Kevin Ryde
# my-diff-prev.sh is shared by several distributions.
#
# my-diff-prev.sh 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 3, or (at your option) any later
# version.
#
# my-diff-prev.sh 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 file. If not, see <http://www.gnu.org/licenses/>.
set -e
set -x
DISTNAME=`sed -n 's/^DISTNAME = \(.*\)/\1/p' Makefile`
if test -z "$DISTNAME"; then
echo "DISTNAME not found"
exit 1
fi
VERSION=`sed -n 's/^VERSION = \(.*\)/\1/p' Makefile`
if test -z "$VERSION"; then
echo "VERSION not found"
exit 1
fi
case $VERSION in
3.*) PREV_VERSION=3.018000 ;;
1.*) PREV_VERSION=1.16 ;;
*) PREV_VERSION="`expr $VERSION - 1`" ;;
esac
if test -z "$VERSION"; then
echo "PREV_VERSION not established"
exit 1
fi
rm -rf diff.tmp
mkdir -p diff.tmp
(cd diff.tmp;
tar xfz ../$DISTNAME-$PREV_VERSION.tar.gz
tar xfz ../$DISTNAME-$VERSION.tar.gz
diff -ur $DISTNAME-$PREV_VERSION \
$DISTNAME-$VERSION \
>tree.diff || true
)
${PAGER:-more} diff.tmp/tree.diff || true
rm -rf diff.tmp
exit 0
|
