#!/usr/bin/perl -w
# zstrip by zentara@highstream.net 
# ©2/22/2002 copyright  
#-usage: zstrip topdir test(optional) ; zstrip will recursively do a directory, defaults to '.'
#-runs 'strip' on all system binary executables and .so files
#-excludes .a and .o files and misc non-executable binaries such as graphics
#-skips /proc, /boot and /home, will hang if run on /proc
#-remove the /home in the match test to use in /home
#-makes shared libraries faster to load, and use less memory
#-recovers harddrive space from unstripped files, space recovered is reported
#-log all output to file zstrip.log
# This code is distributed under the GNU General Public License (GPL). See
# http://www.opensource.org/gpl-license.html and http://www.opensource.org/.
# USE AT YOUR OWN RISK, ALWAYS MAKE BACKUPS FIRST
use strict;
use File::Find;
use Cwd;

my $tot = 0;
my ($topdir,$testmode) = @ARGV;
if ($topdir eq '.'){$topdir = cwd()}
if ((!defined $topdir) or !(-d $topdir)) {
    print 'You have not entered a directory. 
          Usage: zstrip topdir test (optional, will only print found files)
	  Default-> will run in testmode in current directory.
	  Continue? (n)/y '; 
    if (<STDIN>=~ /^[yY]/) {$topdir = cwd(); $testmode = 1; &strip}}

if (defined $testmode){ 
    print "Running test on $topdir, continue? (n)/y ";
    if (<STDIN> =~ /^[yY]/){&strip} else {exit}}  
else {print "Running real strip on $topdir, continue? (n)/y ";
    if (<STDIN> =~ /^[yY]/){&strip} else {exit}}  
exit;    

sub strip{
 open (STRIPLOG,"+>zstrip.log");
 select STRIPLOG;
 open STDERR, ">&STRIPLOG" or die "Can't capture STDERR";
 find (\&found, $topdir);
 print 'Total space recovered is ',$tot,"\n";
 close STRIPLOG;
 select STDOUT;
 print 'Total space recovered is ',$tot,"\n";
 close STDERR;
 exit;
}

sub found {
   my $file = $File::Find::name;  
   if ($file =~ m#^(/proc|/boot|/home)#) {return}
   return unless -f;
   return if -l;
   if ($file =~ m/(\.o|\.a|\.la|\.bmp|\.xpm|\.gif|\.png|\.jpg|\.jpeg|\.ico|.\avi|\.mpg|\.mp3|\.wav|\.gz|\.tgz|\.z|\.Z|\.bz2|\.tar)$/) {return}
   if ((/\.so/) or (-B and -x)){
   my $s = -s $file;
   print "$file\t$s\t "; 
   unless(defined $testmode){system "strip $File::Find::name"}
   my $s1 = -s $file;
   print $s - $s1,' stripped',"\n";
   $tot += ($s - $s1);
}}