lpp_relpath.sh
76 lines
| 2.9 KiB
| application/x-sh
|
BashLexer
/ scripts / lpp_relpath.sh
Alexis Jeandet
|
r220 | #!/bin/bash | |
| #"=======================================================================================" | |||
| #"---------------------------------------------------------------------------------------" | |||
| #" LPP VHDL lib makeDirs " | |||
| #" Copyright (C) 2010 Laboratory of Plasmas Physic. " | |||
| #"=======================================================================================" | |||
| #---------------------------------------------------------------------------------------- | |||
| # This file is a part of the LPP VHDL IP LIBRARY | |||
| # Copyright (C) 2010, Laboratory of Plasmas Physic - CNRS | |||
| # | |||
| # 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, write to the Free Software | |||
| # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |||
| #---------------------------------------------------------------------------------------- | |||
| function fullpath() { | |||
| if test $# -gt 0 | |||
| then | |||
| cd $1 | |||
| echo `pwd` | |||
| fi | |||
| } | |||
| function relpath() { | |||
| if test $# -gt 1 | |||
| then | |||
| source=`fullpath $1` | |||
| target=`fullpath $2` | |||
| common_part=$source # for now | |||
| result="" # for now | |||
| while [[ "${target#$common_part}" == "${target}" ]]; do | |||
| # no match, means that candidate common part is not correct | |||
| # go up one level (reduce common part) | |||
| common_part="$(dirname $common_part)" | |||
| # and record that we went back, with correct / handling | |||
| if [[ -z $result ]]; then | |||
| result=".." | |||
| else | |||
| result="../$result" | |||
| fi | |||
| done | |||
| if [[ $common_part == "/" ]]; then | |||
| # special case for root (no common path) | |||
| result="$result/" | |||
| fi | |||
| # since we now have identified the common part, | |||
| # compute the non-common part | |||
| forward_part="${target#$common_part}" | |||
| # and now stick all parts together | |||
| if [[ -n $result ]] && [[ -n $forward_part ]]; then | |||
| result="$result$forward_part" | |||
| elif [[ -n $forward_part ]]; then | |||
| # extra slash removal | |||
| result="${forward_part:1}" | |||
| fi | |||
| echo $result | |||
| fi | |||
| } | |||
| PATH1=`pwd` | |||
| echo `relpath $PATH1 $GRLIB` |