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Re: New Perl programmer looking for answer in Directory Comparisons

by lindex (Friar)
on May 01, 2001 at 21:05 UTC ( [id://77028]=note: print w/replies, xml ) Need Help??


in reply to New Perl programmer looking for answer in Directory Comparisons

This is my "There's more than one way to do it", its prolly insane and stupid. But I did it anyways.

p.s. some borrowed methodology from merlyn. 

#!/usr/bin/perl -w

use strict;
use File::Copy qw(copy);

die("Usage: $0 <src> <dst>\n") unless($#ARGV==1);
-d or die("$_ is not a directory") for(@ARGV);

s/\/$// for(@ARGV);
for(glob("$ARGV[0]/*"),glob("$ARGV[1]/*")) {
 copy("$ARGV[0]/$_","$ARGV[1]/$_") or warn("$!: $ARGV[0]/$_\n")
  if(s/$ARGV[0]// && -f "$ARGV[0]/$_" && !-e "$ARGV[1]/$_");
 unlink("$ARGV[1]/$_") or warn("$! unlinking $ARGV[1]/$_\n")
  if(s/$ARGV[1]// && -f "$ARGV[1]/$_" && !-e "$ARGV[0]/$_" );
}

[download]



lindex 
/****************************/
  jason@gost.net, wh@ckz.org
    http://jason.gost.net
/*****************************/

[download]

Replies are listed 'Best First'.
Re: Re: New Perl programmer looking for answer in Directory Comparisons
by merlyn (Sage) on May 01, 2001 at 21:10 UTC
    Well, stealing from that: 
    use File::Copy;
use File::Basename;

for $base (map basename $_, map glob "$_/*", @ARGV) {
  my ($src, $dst) = map "$_/$base", @ARGV;
  -f $src and not -e $dst and not copy $src, $dst and warn "copy $src 
+to $dst failed";
  -f $dst and not -e $src and not unlink $dst and warn "unlink $dst fa
+iled: $!";
}

    [download]

    -- Randal L. Schwartz, Perl hacker

[reply]
[d/l]
      Hmm, I wonder if I can make it any shorter ;)
      foiled agian, Yarr


      lindex 
      /****************************/
  jason@gost.net, wh@ckz.org
    http://jason.gost.net
/*****************************/

      [download]
[reply]
[d/l]

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