mirror of https://github.com/n-hys/bash.git
90 lines
2.1 KiB
Bash
Executable File
90 lines
2.1 KiB
Bash
Executable File
#! /bin/sh
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#
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# fixlinks - make symlinks in the bash source tree so that there is
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# exactly one version of any given source file.
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#
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# Copyright (C) 1996-2002 Free Software Foundation, Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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SRCDIR=.
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while [ $# -gt 0 ]; do
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case "$1" in
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-s) shift; SRCDIR=$1 ;;
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-u) unfix=yes ;;
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-h) hardlinks=yes ;;
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-*) echo "$0: $1: bad option" 1>&2
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echo "$0: usage: $0 [-hu] [-s srcdir] [linkmap]" 1>&2
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exit 1;;
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*) break ;;
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esac
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shift
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done
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if [ ! -d $SRCDIR/builtins ]; then
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echo "$0: must be run with valid -s argument or from source directory" 1>&2
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exit 1
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fi
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if [ $# -eq 0 ]; then
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linkfile=$SRCDIR/support/SYMLINKS
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else
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linkfile=$1
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fi
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if [ ! -f "$linkfile" ]; then
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echo "$0: symlink map file \`$linkfile' does not exist"
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exit 1
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fi
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rm_ltmp=false
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LINKTEMP=`mktemp -t linktmp.XXXXXXXX 2>/dev/null`
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if [ -z "$LINKTEMP" ]; then
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: ${TMPDIR:=/tmp}
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LINKTEMP=${TMPDIR}/linktmp.$$
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rm_ltmp=true
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fi
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$rm_ltmp && rm -f ${LINKTEMP}
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# if the user specified hard links, then do that. otherwise, try to use
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# symlinks if they're present
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if [ -n "$hardlinks" ]; then
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LN=ln
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elif (ln -s /dev/null ${LINKTEMP}) >/dev/null 2>&1; then
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LN="ln -s"
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else
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LN=ln
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fi
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rm -f ${LINKTEMP}
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while read name target
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do
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case "$name" in
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\#*) continue;;
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esac
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rm -f $name
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case "$unfix" in
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yes) dirname=`expr "$name" ':' '^\(.*\)/[^/]*'`
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[ -z "$dirname" ] && dirname=.
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cp $dirname/$target $name
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echo $target copied to $name ;;
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*) $LN $target $name ; echo "$name -> $target" ;;
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esac
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done < $linkfile
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exit 0
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