scripts/timestamp.pl

   1 #!/usr/bin/env perl
   2 #
   3 # Copyright (C) 2006 OpenWrt.org
   4 #
   5 # This is free software, licensed under the GNU General Public License v2.
   6 # See /LICENSE for more information.
   7 #
   8
   9 use strict;
  10
  11 sub get_ts($$) {
  12         my $path = shift;
  13         my $options = shift;
  14         my $ts = 0;
  15         my $fn = "";
  16         $path .= "/" if( -d $path);
  17         open FIND, "find $path -type f -and -not -path \\*/.svn\\* -and -not -path \\*CVS\\* $options 2>/dev/null |";
  18         while (<FIND>) {
  19                 chomp;
  20                 my $file = $_;
  21                 next if -l $file;
  22                 my $mt = (stat $file)[9];
  23                 if ($mt > $ts) {
  24                         $ts = $mt;
  25                         $fn = $file;
  26                 }
  27         }
  28         close FIND;
  29         return ($ts, $fn);
  30 }
  31
  32 (@ARGV > 0) or push @ARGV, ".";
  33 my $ts = 0;
  34 my $n = ".";
  35 my %options;
  36 while (@ARGV > 0) {
  37         my $path = shift @ARGV;
  38         if ($path =~ /^-x/) {
  39                 my $str = shift @ARGV;
  40                 $options{"findopts"} .= " -and -not -path '".$str."'"
  41         } elsif ($path =~ /^-f/) {
  42                 $options{"findopts"} .= " -follow";
  43         } elsif ($path =~ /^-n/) {
  44                 my $arg = $ARGV[0];
  45                 $options{$path} = $arg;
  46         } elsif ($path =~ /^-/) {
  47                 $options{$path} = 1;
  48         } else {
  49                 my ($tmp, $fname) = get_ts($path, $options{"findopts"});
  50                 if ($tmp > $ts) {
  51                         if ($options{'-F'}) {
  52                                 $n = $fname;
  53                         } else {
  54                                 $n = $path;
  55                         }
  56                         $ts = $tmp;
  57                 }
  58         }
  59 }
  60
  61 if ($options{"-n"}) {
  62         exit ($n eq $options{"-n"} ? 0 : 1);
  63 } elsif ($options{"-p"}) {
  64         print "$n\n";
  65 } elsif ($options{"-t"}) {
  66         print "$ts\n";
  67 } else {
  68         print "$n\t$ts\n";
  69 }