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#!/bin/sh
#
# $Id: cpifdiff.sh 14444 2008-04-16 22:40:48Z hos $
#
# ***** BEGIN GPL LICENSE BLOCK *****
#
# 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# The Original Code is Copyright (C) 2002 by Hans Lambermont
# All rights reserved.
#
# The Original Code is: all of this file.
#
# Contributor(s): none yet.
#
# ***** END GPL LICENSE BLOCK *****
#
# cp-if-diff copies src(s) to dst only if they are different, so trying
# not to unneccesarily break compiler dependencies
numargs=$#
if [ $numargs -lt 2 ]; then
echo "Usage: cpifdiff source [source] target"
exit 1
fi
cpargs=`expr $numargs - 1`
i=1
while [ $i -le $cpargs ]; do
args="$args $1"
#echo "arg $i = $args"
i=`expr $i + 1`
shift
done
dst=$1
for src in $args; do
#echo "$src to $dst"
if [ ! -f $src ]; then
echo "ERROR $src is not a file"
exit 1
fi
if [ -d $dst ]; then
src2=`echo $src | sed 's/.*\///'`
if [ -f "$dst/$src2" ]; then
diff $src $dst 2>&1 >/dev/null
if [ $? -eq 0 ]; then
echo " $src2 already installed"
else
echo " install $src"
cp -f $src $dst
fi
else
echo " Install $src"
cp $src $dst
fi
elif [ -f $dst ]; then
diff $src $dst 2>&1 >/dev/null
if [ $? -eq 0 ]; then
echo " $src already installed"
else
echo " install $src"
cp -f $src $dst
fi
else
echo "ERROR $dst is not a directory or a file"
exit 1
fi
done
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