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Re: Iterate Recursively Through Directories

by moritz (Cardinal)
on Feb 09, 2014 at 18:17 UTC ( #1074145=note: print w/replies, xml ) Need Help??

in reply to Iterate Recursively Through Directories

FWIW if the directory structure is always DIR$N/001.$EXT, it has a fixed depth and you don't even need File::Find(::Rule), a simple glob is enough:

use strict; use warnings; my %seen; while (my $file = glob 'Dir*/*') { (my $base = $file) =~ s/\.\w+$//; next if $seen{$base}; # work with $file here }

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Re^2: Iterate Recursively Through Directories
by tbone654 (Beadle) on Feb 11, 2014 at 20:18 UTC

    I don't know if this helps for anything, this doesn't Iterate Recursively as shown, but I use readdir in the following code to create an array $dots of filenames from a directory, excluding any "." prefix in unix. Then I can grep out anything I don't want to operate on, etc. Or in this case put the contents of all the files into a single array $foo, then grep out or split out whatever I'm looking for. I think it can be modified to do something useful without a module.

    $sd = "../data/data_forthis"; opendir( DIR, $sd) || die; while( ($filename = readdir(DIR))){ next if "$sd\/$filename" =~ /\/\./; push @dots, "$sd\/$filename"; } ## end of while @dots = sort @dots; closedir(DIR); for(my $a=0;$a<@dots;$a++){ open (FILE, $dots[$a]); push @foo, <FILE>; if ($a+1 eq @dots) { close FILE; open (FILE, $dots[$a]); push @foo2, <FILE>; } ## end of if close FILE; } ## end of for ### At this point @foo has everything and $foo2 has just the last file + in the directory...

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[Corion]: choroba: I use spod5, which also has that support, and also implements its own kinda-make stuff
[haukex]: But that module I just linked to assumes that most verbatim blocks are runnable code, I have other modules where that's not the case, so there I just copy-and-paste the synopsis into the author tests...
[haukex]: not the most efficient, but then again, I don't have that many modules on CPAN :-)
[Corion]: haukex: Yes, but if it's only supposed to run on my machine, I can be far more liberal with how I extract the code etc.
[Corion]: haukex: Yes - I see the benefit of using Dist::Zilla for people with 150+ modules on CPAN, but I don't see it for myself, and I'm always put off from contributing to such modules because they require a lot of toolchain setup that I don't want to ...
[Corion]: ... spend time on if I only want to provide a short patch
[haukex]: Corion: Yes exactly, in the author tests I don't worry about portability as much, I also don't list the author tests' dependencies in Makefile.PL
[haukex]: I figure someone who wants to contribute will know how to install the missing modules ;-) Not the nicest way to go but I don't think many people are using my modules yet

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