use File::Find::Rule

Win has asked for the wisdom of the Perl Monks concerning the following question:

This program and variants of is frustrating me as it either takes files that are not in the location I want it to look in or it doesn't find the files that I want and that exist in the directory I have told it to look in. Help appreciated.

#! perl -w scipt

use strict;
use warnings;

use File::Find::Rule;
use File::Find::Rule;
  # find all the subdirectories of a given directory

my $directory = "U:/2004_2005/Application/Development/Useful_methods/"
+;
my $directory_label = "U:/2004_2005/Application/Development/Useful_met
+hods";

my @subdirs = File::Find::Rule->directory->in( $directory_label );

print @subdirs;
#exit;


foreach (@subdirs){
  print "Hi\n";
#  if ($_ !~ /$directory_label|$directory/){
    print $_;
    print "\n\n";
    my $directory_current = $_;
    #  print  cwd();
   # print \n;
    my $rule =  File::Find::Rule->new;
    
    $rule->directory( '$directory_current' );
    $rule->file;
    $rule->name( '*.*' );
    #$rule->name( qr/^[^.]{118,1000}$/); #      #  );     #  (\.[^.]{0
+,20})?$/ ) ;

   # $rule->name( qr/^.{20,1000}$/);  
    my @files = $rule->in( @INC );

    foreach(@files){
      print $_;

    }
#  }
}
[download]

The following section is not working properly:

   my @files = $rule->in( @INC );

    foreach(@files){
      print $_;

    }
[download]

Comment on use File::Find::Rule Select or Download Code

Replies are listed 'Best First'.
Re: use File::Find::Rule by tirwhan (Abbot) on Jul 31, 2009 at 17:04 UTC
That's what happens when you just copy and paste a module example without understanding what is going on. Read the File::Find::Rule documentation, it explains this very clearly. You might also want to search perlvar for an explanation on what @INC is/contains. All dogma is stupid.	[reply] [d/l]
Re: use File::Find::Rule by MidLifeXis (Monsignor) on Jul 31, 2009 at 16:55 UTC
What is it giving you, and what are you expecting it to give you? --MidLifeXis The tomes, scrolls etc are dusty because they reside in a dusty old house, not because they're unused. --hangon in this post	[reply]
Re: use File::Find::Rule by Anonymous Monk on Jul 31, 2009 at 17:03 UTC
Do you do care/realize @INC and @subdirs are different?	[reply]
Re^2: use File::Find::Rule by Win (Novice) on Jul 31, 2009 at 17:15 UTC
I was hoping that the @INC would contain the files with full directory paths. Which is does, but not the files I was expecting.	[reply]
Re: use File::Find::Rule by Marshall (Canon) on Aug 02, 2009 at 02:37 UTC
I see that you are a Windows user. If you are going to use that first line, "#! perl -w scipt", it should look like this: `#!/usr/bin/perl -w`. On Unix this says to run the program at /usr/bin/perl (ie Perl) with the -w option. On Windows, this path is ignored and Windows only uses the -w option. This takes the place of "use warnings;" in the code. I am just going from this comment: # find all the subdirectories of a given directory. Before learning about fancy modules, I would recommend learning the basics. The code that you need is not hard. `#!/usr/bin/perl -w use strict; use File::Find; my $start_dir = "C:/"; find (\&print_all_directories, "$start_dir"); sub print_all_directories { return if !-d; my $full_dir_path = $File::Find::name; print "$full_dir_path\n"; }` [download] find()in module File::Find, visits all files below the directory specified, calling the specified subroutine on each file. A directory is also a file! If the file isn't a directory, print_all_directories() just returns, if this is a directory, we figure out the full path name and print it.	[reply] [d/l] [select]