Fellow monks, I am trying to understand how this subroutine works and I just cannot workout the logic. Also, "findfiles" is not part of a module as far as I know and it keeps erroring out when I run the program. It is also not a defined variable, either. Error at bottom. 
use strict;
use warnings;
use diagnostics;
use autodie;
use File::Copy::Recursive qw( rcopy );                          
use File::Path qw( mkpath remove_tree ); 
use File::Glob qw( :globally );
use File::Find;
use File::Spec;
use Getopt::Long;                   
use Pod::Usage;                   
use POSIX qw(strftime);
use File::Spec::Functions;

sub DirCompare{
  my ( %old_list, %new_list, @diffs);
 
  for my $file (findfiles($ARCHIVE) ) {
    $old_list{$file} = 1;
  }
  for my $file (findfiles($SourceDir) ) {
    $new_list{$file} = 1;
  }
 
  for my $file (sort keys %old_list) {
    if ( !defined $new_list{$file} ) {
      push @diffs, "Old file not in new: $file";
    }
  }
  for my $file (sort keys %new_list) {
    if ( !defined $old_list{$file} ) {
      push @diffs, "Old file not in new: $file";
    }
  }
  if (@diffs) {
    my $msg = sprintf "WARNING: %s\n", join "\nWARNING: ", @errors;
    check_ok( $msg );
  }
  return;
}

[download]

Undefined subroutine &main::findfiles called at deploy.pl line 154 (#1) (F) The subroutine indicated hasn't been defined, or if it was, it has since been undefined. Uncaught exception from user code: Undefined subroutine &main::findfiles called at deploy.pl line 154. at deploy.pl line 154 main::DirCompare() called at deploy.pl line 243

If you have any input as to how I can better form the subroutine, please share your ideas.

In reply to Comparing files in directory by smturner1

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