diff options
Diffstat (limited to 'support/fixlinks')
-rwxr-xr-x | support/fixlinks | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/support/fixlinks b/support/fixlinks new file mode 100755 index 0000000..73b0fa3 --- /dev/null +++ b/support/fixlinks @@ -0,0 +1,89 @@ +#! /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 |