build/unix/print-depth-path.sh

   1 #!/bin/sh
   2 #
   3 # ***** BEGIN LICENSE BLOCK *****
   4 # Version: MPL 1.1/GPL 2.0/LGPL 2.1
   5 #
   6 # The contents of this file are subject to the Mozilla Public License Version
   7 # 1.1 (the "License"); you may not use this file except in compliance with
   8 # the License. You may obtain a copy of the License at
   9 # http://www.mozilla.org/MPL/
  10 #
  11 # Software distributed under the License is distributed on an "AS IS" basis,
  12 # WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  13 # for the specific language governing rights and limitations under the
  14 # License.
  15 #
  16 # The Original Code is mozilla.org code.
  17 #
  18 # The Initial Developer of the Original Code is
  19 # Netscape Communications Corporation.
  20 # Portions created by the Initial Developer are Copyright (C) 1998
  21 # the Initial Developer. All Rights Reserved.
  22 #
  23 # Contributor(s):
  24 #   jim_nance@yahoo.com
  25 #
  26 # Alternatively, the contents of this file may be used under the terms of
  27 # either of the GNU General Public License Version 2 or later (the "GPL"),
  28 # or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  29 # in which case the provisions of the GPL or the LGPL are applicable instead
  30 # of those above. If you wish to allow use of your version of this file only
  31 # under the terms of either the GPL or the LGPL, and not to allow others to
  32 # use your version of this file under the terms of the MPL, indicate your
  33 # decision by deleting the provisions above and replace them with the notice
  34 # and other provisions required by the GPL or the LGPL. If you do not delete
  35 # the provisions above, a recipient may use your version of this file under
  36 # the terms of any one of the MPL, the GPL or the LGPL.
  37 #
  38 # ***** END LICENSE BLOCK *****
  39
  40 #
  41 # This script will print the depth path for a mozilla directory based
  42 # on the info in Makefile
  43 #
  44 # It's a hack.  It's brute force.  It's horrible.
  45 # It don't use Artificial Intelligence.  It don't use Virtual Reality.
  46 # It's not perl.  It's not python.   But it works.
  47 #
  48 # Usage: print-depth-path.sh
  49 #
  50 # Send comments, improvements, bugs to jim_nance@yahoo.com
  51 #
  52
  53 # Make sure a Makefile exists
  54 if [ ! -f Makefile ]
  55 then
  56         echo
  57         echo "There ain't no 'Makefile' over here: $pwd, dude."
  58         echo
  59
  60         exit
  61 fi
  62
  63 # awk can be quite primitave.  Try enhanced versions first
  64 for AWK in gawk nawk awk; do
  65     if type $AWK 2>/dev/null 1>/dev/null; then
  66         break;
  67     fi
  68 done
  69
  70 $AWK -v PWD=`pwd` '
  71 {
  72     if($1 == "DEPTH") {
  73         DEPTH=$0
  74     }
  75 }
  76
  77 END {
  78     sub("^.*DEPTH.*=[ \t]*", "", DEPTH)
  79     dlen = split(DEPTH, darray, "/")
  80     plen = split(PWD,   parray, "/")
  81
  82     fsep=""
  83     for(i=plen-dlen; i<=plen; i++) {
  84         printf("%s%s", fsep, parray[i])
  85         fsep="/"
  86     }
  87     printf("\n")
  88 }' Makefile
  89