wmake/wmakeCheckPwd

   1 #!/bin/sh
   2 #------------------------------------------------------------------------------
   3 # =========                 |
   4 # \\      /  F ield         | foam-extend: Open Source CFD
   5 #  \\    /   O peration     |
   6 #   \\  /    A nd           | For copyright notice see file Copyright
   7 #    \\/     M anipulation  |
   8 #------------------------------------------------------------------------------
   9 # License
  10 #     This file is part of foam-extend.
  11 #
  12 #     foam-extend is free software: you can redistribute it and/or modify it
  13 #     under the terms of the GNU General Public License as published by the
  14 #     Free Software Foundation, either version 3 of the License, or (at your
  15 #     option) any later version.
  16 #
  17 #     foam-extend is distributed in the hope that it will be useful, but
  18 #     WITHOUT ANY WARRANTY; without even the implied warranty of
  19 #     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20 #     General Public License for more details.
  21 #
  22 #     You should have received a copy of the GNU General Public License
  23 #     along with foam-extend.  If not, see <http://www.gnu.org/licenses/>.
  24 #
  25 # Script
  26 #     wmakeCheckPwd
  27 #
  28 # Description
  29 #     Check that the current working directory is equal to a particular
  30 #     target directory, resolving the absolute path as required
  31 #
  32 #------------------------------------------------------------------------------
  33 unset quietOpt
  34
  35 usage() {
  36     [ "$quietOpt" = true ] && exit 1
  37     exec 1>&2
  38     while [ "$#" -ge 1 ]; do echo "$1"; shift; done
  39     cat<<USAGE
  40
  41 usage: ${0##*/} [OPTION] dirName
  42
  43 options:
  44   -q | -quiet   suppress all normal output
  45
  46   Check that the current working directory is equal to a particular
  47   target directory, resolving the absolute path as required
  48
  49   Exit status 0 when the directories are identical
  50   Exit status 1 on error
  51
  52 USAGE
  53     exit 1
  54 }
  55
  56
  57 # parse options
  58 while [ "$#" -gt 0 ]
  59 do
  60     case "$1" in
  61     -h | -help)
  62         usage
  63         ;;
  64     -q | -quiet)
  65         quietOpt=true
  66         shift
  67         ;;
  68     -*)
  69         usage "unknown option: '$*'"
  70         ;;
  71     *)
  72         break
  73         ;;
  74     esac
  75 done
  76
  77
  78 [ "$#" -eq 1 ] || usage
  79 dirName="$1"
  80
  81
  82 # trivial checks first
  83 [ "$PWD" = "$dirName" ] && exit 0
  84
  85 [ -d "$dirName" ] || {
  86     [ "$quietOpt" = true ] || echo "Error: Directory does not exist $dirName"
  87     exit 1
  88 }
  89
  90
  91 # use /bin/pwd to get the absolute path (could be linked)
  92 thisDir=$(/bin/pwd)
  93 target=$(cd $dirName 2>/dev/null && /bin/pwd)
  94
  95 # okay
  96 [ "$thisDir" = "$target" ] && exit 0
  97
  98 # some other error
  99 [ "$quietOpt" = true ] || echo "Error: Current directory is not $dirName"
 100 exit 1
 101
 102 #------------------------------------------------------------------------------