in reply to passing argument to sub wanted

You need to pass an additional parameter to wanted. The way to do this is to use a closure: File::Find::find({wanted => sub { wanted( $size_input); } }, $fs_input ) ;. This way wanted is called by the anonymous sub, and gets passed $size_input.

See Why I hate File::Find and how I (hope I) fixed it for more info.

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Re^2: passing argument to sub wanted
by mikejones (Scribe) on May 16, 2008 at 19:40 UTC
    I read the "Why I hate File::Find..." three times and adjusted my code and it seems to retain the var $size_input yet my array it not being populated. When I hard-code the number in, my array is populated as expected. I am almost begging for help b/c I cannot understand how to solve this anymore or what add'l tools to use other than Dumper and perl -d.

    Please help on this frustrating code. Thank you in advance! 

    <snip>
use strict;
use warnings;

my ( @root_files, @large_files, %mounts, @mounts, ) ;
use vars qw/*name *dir *prune/ ;
*name   = *File::Find::name ;
*dir    = *File::Find::dir ;
*prune  = *File::Find::prune ;


<snip>
}
else {
    print "USING LAST ELSE\n";
    my $size_input = ( int 25 * ( 1024**2 ) ) ;
    $size_input =~ tr /\000//d ;
    my $wanted =  make_wanted ( \&wanted_1, $size_input ) ;
    File::Find::find( $wanted, $fs_input ) ;
    print "\n";
}

sub wanted_1 {

    for my $key ( sort keys %mounts ) {
        if ( $fs_input eq $key ) {
            @mounts =
                grep {$fs_input} @{ $mounts{$key} } ; ###-- HoA --###
        }
    }

    if ( scalar @mounts > 0 ) {
        die "cant search...foobarbazzzzy $!" ;
    }
    else {
        my ( $size_input ) = shift @_ ;
        print $size_input,"\n";
        my ($dev,$ino,$mode,$nlink,$uid,$gid) ;
        (( $dev,$ino,$mode,$nlink,$uid,$gid ) = lstat($_) ) &&
         ( $dev >= 0 ) &&
         !( $File::Find::prune |= ($dev != $File::Find::topdev ) ) &&
         ( int(((-s _) + 1023) / 1024 ) > $size_input ) &&
         push ((@large_files), $name ) ;
    }
}

sub make_wanted {

    my $wanted = shift ;    # get the "real" wanted function
    my @args   = @_    ;    # "freeze" the arguments
    my $sub = sub { $wanted->( @args ); } ;  # generate the anon sub
    return $sub ;           # return it
}


print "\n",scalar @large_files,"\n";
exit;
<snip>

    [download]

    $size_input is being printed correctly/accurately, but nothing in the array.

[reply]
[d/l]
Re^2: passing argument to sub wanted
by mikejones (Scribe) on May 15, 2008 at 15:50 UTC
    Mirod, did you have time to review my update agn reply? If you could help that would be much appreciated b/c it seems you have much experience in this! thank you!
[reply]
Re^2: passing argument to sub wanted
by mikejones (Scribe) on May 14, 2008 at 15:49 UTC

    UPDATE

    Mirod's idea does not retain my $size_input and I am still having to hard-code the value. Any more ideas greatly appreciated! 

    sub wanted;
File::Find::find({wanted => sub { wanted( $size_input ); } }, $fs_inpu
+t ) ;

    [download]
    UPDATE AGN

    I changed the find code to include a dereference (->) and the value is being printed the line b4 the int -s, but now the array is not being populated with $name when it should contain 16 elements. Finally when I print *name with $size_input it does not print, but when I print *name with the hard-coded number in the int ((( -s line, I see *name incrementing. 

    
 File::Find::find({wanted => sub { wanted->( $size_input ); } }, $fs_i
+nput ) ;
    
<snip>
else {
        my ( $size_input ) = shift @_ ;    ###-- Freeze the arg --#
       
        my ($dev,$ino,$mode,$nlink,$uid,$gid);
       (( $dev,$ino,$mode,$nlink,$uid,$gid ) = lstat($_) ) &&
       ( $dev >= 0 ) &&
       !( $File::Find::prune |= ($dev != $File::Find::topdev ) ) &&
       print "MIDDLE SZINPT:\t",($size_input),"\n", &&
       ( int(((-s _) + 1023) / 1024 ) > $size_input ) &&
       push ((@large_files), $name);
    }
}    ###-- End sub --###

print scalar @large_files;

    [download]

    
__OUTPUT__
MIDDLE SZINPT:  26214400
MIDDLE SZINPT:  26214400
MIDDLE SZINPT:  26214400
0

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