Beefy Boxes and Bandwidth Generously Provided by pair Networks
The stupid question is the question not asked

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??
I am attempting to use File::Find to recurse down a dated directory structure and yell when it finds a certain (the "latest") path/filename within that structure (at the 'year', 'month' or 'day' level).

Running this script with an argument of /path/content, for example, should recurse down a directory tree and print out:

if it's able to locate path/content (with any file extension) within the 2002/07/14 directory.

The trick here is that I need the testing done such that the most recent dates are checked first (year 2002 tested before 2001, month 12 checked before 11). The File::Find::Unix man page would seem to indicate that all I need to do is specify a 'preprocess' function to do my sorting. My preprocess function is not getting called and I'm at a loss as to why. The script I'm using appears below (it's small).

use strict; use File::Find; use File::Spec; my $search = File::Spec->canonpath("/".shift()); 1 while $search =~ s!/[^/]+/\.\./?!/!; $search =~ s!^/!!; find({ wanted => \&wanted, preprocess => \&preprocess, # this should do it follow => 1, }, "."); sub wanted { return unless -d; print "testing $File::Find::name\n"; # see these fine if (glob("$_/${search}.*")) { print "$File::Find::name/$search\n"; exit; } } sub preprocess { print "pre-processing @_\n"; # never see this return sort { $b <=> $a } grep { /^\d+$/ } @_; }
[fastolfe@home test]$ ./resolve-name /path/content testing . testing ./2001 testing ./2001/05 testing ./2001/05/30 ./2001/05/30/path/content
Unfortunately the one it found was actually the oldest, which might imply that it's following a standard ascending sort that one typically sees on Unix.

In reply to File::Find preprocess difficulties by Fastolfe

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?

What's my password?
Create A New User
Domain Nodelet?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others about the Monastery: (5)
As of 2024-04-22 22:31 GMT
Find Nodes?
    Voting Booth?

    No recent polls found