michael@0: #! /bin/perl
michael@0: 
michael@0: ########################################################################
michael@0: #
michael@0: # /u/sonmi/bin/path_uniq
michael@0: #
michael@0: # this script makes components of a PATH like string unique cand prints
michael@0: # it to stdout
michael@0: #
michael@0: # parameters
michael@0: # ----------
michael@0: #    PATH
michael@0: #
michael@0: # options
michael@0: # -------
michael@0: #     -d delimiter - default : 
michael@0: #     -s shortens the path
michael@0: #
michael@0: # usefull enhancements: in the usage part, try to guess what was meant as 
michael@0: # a path and echo it to stdout to not break for PATHs with blanks
michael@0: #
michael@0: ########################################################################
michael@0: 
michael@0: sub usage {
michael@0:     print STDERR "usage $0 [-s] [-d <delimiter>] PATH\n";
michael@0:     print STDERR "    this script makes components of the PATH unique, if you\n";
michael@0:     print STDERR "    pass in a searchpath A:B:C:A:B:E it will print A:B:C:E to\n";
michael@0:     print STDERR "    the stdout\n\n";
michael@0:     print STDERR "    -s will mercylessly cut components from the path, \n";
michael@0:     print STDERR "    use at your own risk\n\n";
michael@0:     print STDERR "    the parameters you gave were: \n";
michael@0:     for ( $i = 0; $i <= $#ARGV; $i++ ) {
michael@0:         print STDERR "        $ARGV[$i]\n";
michael@0:     }
michael@0:     exit ;
michael@0: }
michael@0: 
michael@0: 
michael@0: $i = 0;
michael@0: $j = 0;
michael@0: $delimiter = ":";
michael@0: $searchpath = "";
michael@0: @pathcomponents;
michael@0: $found=0;
michael@0: $newpath="";
michael@0: $shorten=0;
michael@0: 
michael@0: for ( $i=0; $i <= $#ARGV; $i++) {
michael@0:     if ( $ARGV[$i] eq '-d' ) {
michael@0:         $delimiter = $ARGV[++$i];
michael@0:     } elsif  ( $ARGV[$i] eq '-s' ) {
michael@0:         $shorten=1;
michael@0:     } else {
michael@0:         $searchpath = $ARGV[$i];
michael@0:     }
michael@0: }
michael@0: if ( $searchpath eq "" ) {
michael@0:     usage;
michael@0: }
michael@0: #print STDERR "delimiter $delimiter\n";
michael@0: #print STDERR "shorten $shorten\n";
michael@0: #print STDERR "searchpath $searchpath\n";
michael@0: 
michael@0: @pathcomponents=split($delimiter, $searchpath);
michael@0: 
michael@0: for ( $i = 0; $i <= $#pathcomponents; $i++ ) {
michael@0:     $found=0;
michael@0:     if ( $shorten == 1 ) {
michael@0:         if ( "\/tools\/ns-arch\/sparc_sun_solaris2\.4\/lib\/sparcworks\/SUNWspro/bin" eq $pathcomponents[$i] ||
michael@0:               "\/h\/tortoise\/export\/share\/builds\/tools\/sparc_sun_solaris2\.5\.1\/perl5\.004\/bin" eq $pathcomponents[$i] ||
michael@0:               "\/usr\/dist\/local\/exe" eq $pathcomponents[$i] ||
michael@0:               "\/opt\/SUNWspro\/bin" eq $pathcomponents[$i] ||
michael@0:               "\/opt\/SUNWwabi\/bin" eq $pathcomponents[$i] ||
michael@0:               "\/u\/svbld\/bin" eq $pathcomponents[$i] ||
michael@0:               "\/usr\/demos" eq $pathcomponents[$i] ||
michael@0:               "\/usr\/audio\/bin" eq $pathcomponents[$i] ||
michael@0:               "\/usr\/openwin\/demo" eq $pathcomponents[$i] ||
michael@0:               "\/tools\/contrib\/bin" eq $pathcomponents[$i] ||
michael@0:               "\/usr\/etc\/" eq $pathcomponents[$i] ||
michael@0:               "\/usr\/demos\/bin" eq $pathcomponents[$i] ) {
michael@0: 
michael@0:             
michael@0:             #print "dumped: $pathcomponents[$i]\n";
michael@0:             next;
michael@0:         }
michael@0:             #print "keep: $pathcomponents[$i]\n";
michael@0:     }
michael@0:     for ( $j = 0; $j < $i; $j++ ) {
michael@0:         if ( $pathcomponents[$j] eq $pathcomponents[$i] ) {
michael@0:             #print "$i and $j match - $pathcomponents[$i] - $pathcomponents[$j]\n";
michael@0:             $found=1;
michael@0:             last;
michael@0:         }
michael@0:     }
michael@0:     if ( $found == 0 ) {
michael@0:         #print "$pathcomponents[$i]:";
michael@0:         if ($i == 0) {
michael@0:             $newpath = $pathcomponents[$i];
michael@0:         } else {
michael@0:             $newpath=join($delimiter, $newpath,$pathcomponents[$i]);
michael@0:         }
michael@0:     }
michael@0: }
michael@0: print "$newpath\n";
michael@0: exit;
michael@0: 
michael@0: