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|
#! /bin/bash
#
# mkclone - symlink every file appearing in $src/MANIFEST to a corresponding
# file in the target directory ($1). Directories specified in
# MANIFEST are created in the target directory
#
# 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/>.
#
prog=`basename $0`
SRCDIR=src
USAGE="usage: $prog [-m manifest] [-s srcdir] [-v] [-d] [-h] target"
while getopts dhm:s:v opt
do
case "$opt" in
m) MANIFEST=$OPTARG ;;
s) SRCDIR=$OPTARG ;;
v) verbose=y ;;
d) ECHO=echo debug=y ;;
h) hardlinks=y ;;
?) echo $USAGE >&2
exit 2;;
esac
done
: ${MANIFEST:=${SRCDIR}/MANIFEST}
[ -n "$debug" ] && verbose=
shift $(( $OPTIND - 1 ))
if [ $# -lt 1 ]; then
echo $USAGE >&2
exit 2
fi
if [ ! -f $MANIFEST ]; then
echo "$prog: $MANIFEST: no such file or directory" >&2
echo "$prog: must be run with valid -s argument or from source directory" >&2
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}
TARGET=$1
if [ ! -d "$TARGET" ]; then
mkdir "$TARGET"
fi
echo "${prog}: creating clone of bash source tree (from $SRCDIR) in $TARGET"
cd "$TARGET" || { echo "${prog}: cannot cd to $TARGET" >&2 ; exit 1; }
while read fname type mode
do
[ -z "$fname" ] && continue
case "$fname" in
\#*) continue ;;
esac
case "$type" in
d) [ -n "$verbose" ] && echo mkdir $fname
$ECHO mkdir $fname ;; # already in $TARGET
f) fn=${fname##*/}
case "$fname" in
*/*) dn=${fname%/*} ;;
*) dn=. ;;
esac
if [ -n "$verbose" ] || [ -n "$debug" ]; then
echo "( cd $dn && $LN $SRCDIR/$fname $fn )"
fi
[ -z "$debug" ] && ( cd $dn && $LN $SRCDIR/$fname $fn )
;;
*) echo "${prog}: ${fname}: unknown file type $type" 1>&2 ;;
esac
done < $MANIFEST
# special
SPECIAL="parser-built y.tab.c y.tab.h"
rm -f $SPECIAL
for sf in $SPECIAL
do
[ -n "$verbose" ] && echo cp -p $SRCDIR/$sf $TARGET
$ECHO cp -p $SRCDIR/$sf $TARGET
done
exit 0
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