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#! /bin/sh
#
# fixlinks - make symlinks in the bash source tree so that there is
# exactly one version of any given source file.
#
# Copyright (C) 1996-2002 Free Software Foundation, Inc.
#
# 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 3 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/>.
#
SRCDIR=.
while [ $# -gt 0 ]; do
case "$1" in
-s) shift; SRCDIR=$1 ;;
-u) unfix=yes ;;
-h) hardlinks=yes ;;
-*) echo "$0: $1: bad option" 1>&2
echo "$0: usage: $0 [-hu] [-s srcdir] [linkmap]" 1>&2
exit 1;;
*) break ;;
esac
shift
done
if [ ! -d $SRCDIR/builtins ]; then
echo "$0: must be run with valid -s argument or from source directory" 1>&2
exit 1
fi
if [ $# -eq 0 ]; then
linkfile=$SRCDIR/support/SYMLINKS
else
linkfile=$1
fi
if [ ! -f "$linkfile" ]; then
echo "$0: symlink map file \`$linkfile' does not exist"
exit 1
fi
rm_ltmp=false
LINKTEMP=`mktemp -t linktmp.XXXXXXXX 2>/dev/null`
if [ -z "$LINKTEMP" ]; then
: ${TMPDIR:=/tmp}
LINKTEMP=${TMPDIR}/linktmp.$$
rm_ltmp=true
fi
$rm_ltmp && rm -f ${LINKTEMP}
# if the user specified hard links, then do that. otherwise, try to use
# symlinks if they're present
if [ -n "$hardlinks" ]; then
LN=ln
elif (ln -s /dev/null ${LINKTEMP}) >/dev/null 2>&1; then
LN="ln -s"
else
LN=ln
fi
rm -f ${LINKTEMP}
while read name target
do
case "$name" in
\#*) continue;;
esac
rm -f $name
case "$unfix" in
yes) dirname=`expr "$name" ':' '^\(.*\)/[^/]*'`
[ -z "$dirname" ] && dirname=.
cp $dirname/$target $name
echo $target copied to $name ;;
*) $LN $target $name ; echo "$name -> $target" ;;
esac
done < $linkfile
exit 0
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