build/unix/print-depth-path.sh

   1 #!/bin/sh
   2 #
   3 # This Source Code Form is subject to the terms of the Mozilla Public
   4 # License, v. 2.0. If a copy of the MPL was not distributed with this
   5 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   6
   7 #
   8 # This script will print the depth path for a mozilla directory based
   9 # on the info in Makefile
  10 #
  11 # It's a hack.  It's brute force.  It's horrible.
  12 # It don't use Artificial Intelligence.  It don't use Virtual Reality.
  13 # It's not perl.  It's not python.   But it works.
  14 #
  15 # Usage: print-depth-path.sh
  16 #
  17 # Send comments, improvements, bugs to jim_nance@yahoo.com
  18 #
  19
  20 # Make sure a Makefile exists
  21 if [ ! -f Makefile ]
  22 then
  23         echo
  24         echo "There ain't no 'Makefile' over here: $pwd, dude."
  25         echo
  26
  27         exit
  28 fi
  29
  30 # awk can be quite primitave.  Try enhanced versions first
  31 for AWK in gawk nawk awk; do
  32     if type $AWK 2>/dev/null 1>/dev/null; then
  33         break;
  34     fi
  35 done
  36
  37 $AWK -v PWD=`pwd` '
  38 {
  39     if($1 == "DEPTH") {
  40         DEPTH=$0
  41     }
  42 }
  43
  44 END {
  45     sub("^.*DEPTH.*=[ \t]*", "", DEPTH)
  46     dlen = split(DEPTH, darray, "/")
  47     plen = split(PWD,   parray, "/")
  48
  49     fsep=""
  50     for(i=plen-dlen; i<=plen; i++) {
  51         printf("%s%s", fsep, parray[i])
  52         fsep="/"
  53     }
  54     printf("\n")
  55 }' Makefile
  56