#! /bin/sh # lndir - create shadow link tree # # Time stamp <89/11/28 18:56:54 gildea> # By Stephen Gildea <gildea@bbn.com> based on # XConsortium: lndir.sh,v 1.1 88/10/20 17:37:16 jim Exp # # Used to create a copy of the a directory tree that has links for all non- # directories (except those named RCS). If you are building the distribution # on more than one machine, you should use this script. # # If your master sources are located in /usr/local/src/X and you would like # your link tree to be in /usr/local/src/new-X, do the following: # # % mkdir /usr/local/src/new-X # % cd /usr/local/src/new-X # % lndir ../X # # Note: does not link files beginning with "." Is this a bug or a feature? # # Improvements over R3 version: # Allows the fromdir to be relative: usually you want to say "../dist" # The name is relative to the todir, not the current directory. # # Bugs in R3 version fixed: # Do "pwd" command *after* "cd $DIRTO". # Don't try to link directories, avoiding error message "<dir> exists". # Barf with Usage message if either DIRFROM *or* DIRTO is not a directory. USAGE="Usage: $0 fromdir [todir]" case $0 in /*) lndir=$0 ;; */*) lndir=`pwd`/$0 ;; *) lndir=$0 ;; esac if [ $# -lt 1 -o $# -gt 2 ] then echo "$USAGE" exit 1 fi DIRFROM=$1 if [ $# -eq 2 ]; then DIRTO=$2 else DIRTO=. fi if [ ! -d $DIRTO ] then echo "$0: $DIRTO is not a directory" echo "$USAGE" exit 2 fi cd $DIRTO if [ ! -d $DIRFROM ] then echo "$0: $DIRFROM is not a directory" echo "$USAGE" exit 2 fi pwd=`pwd` if [ `(cd $DIRFROM; pwd)` = $pwd ] then echo "$pwd: FROM and TO are identical!" exit 1 fi for file in `ls -a $DIRFROM` do if [ ! -d $DIRFROM/$file ] then ln -s $DIRFROM/$file . else if [ $file != RCS -a $file != CVS -a $file != . -a $file != .. ] then echo $file: mkdir $file (cd $file pwd=`pwd` case "$DIRFROM" in /*) ;; *) DIRFROM=../$DIRFROM ;; esac if [ `(cd $DIRFROM/$file; pwd)` = $pwd ] then echo "$pwd: FROM and TO are identical!" exit 1 fi $lndir $DIRFROM/$file ) fi fi done