#591242 File::File does not call dangling_symlinks if follow => 0

Package:
perl
Source:
perl
Description:
Larry Wall's Practical Extraction and Report Language
Submitter:
Joachim Breitner
Date:
2023-11-20 17:36:09 UTC
Severity:
normal
Tags:
#591242#5
Date:
2010-08-01 13:18:03 UTC
From:
To:
Hi,

when using the find method of File::Find, it seems that the
dangling_symlink callback is only called if follow => 1. This is not
reflected in the manpage, and there are valid use cases for follow =>0
and dangling_symlinks.

Greetings,
Joachim

- -- System Information:
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Architecture: amd64 (x86_64)

Kernel: Linux 2.6.34-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages perl-modules depends on:
ii  perl                          5.10.1-13  Larry Wall's Practical Extraction

perl-modules recommends no packages.

perl-modules suggests no packages.

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#591242#10
Date:
2010-08-02 16:13:03 UTC
From:
To:
I agree.  The dependency that "dangling_symlinks" has on "follow => 1" is
not reflected in the man page.

 "dangling_symlinks"
          If true and a code reference, will be called with the symbolic
link
          name and the directory it lives in as arguments.  Otherwise, if
true
          and warnings are on, warning "symbolic_link_name is a dangling
symbolic
          link\n" will be issued.  If false, the dangling symbolic link will
be
          silently ignored.

Code such as this would not work:

find({
        wanted => sub { print $File::Find::name . "\n"; },
        dangling_symlinks => sub { print "dangling: " . $File::Find::name .
"\n"; },
    }, qw(dir_to_search));

but this would:

find({
        wanted => sub { print $File::Find::name . "\n"; },
        dangling_symlinks => sub { print "dangling: " . $File::Find::name .
"\n"; },
        follow => 1,
    }, qw(dir_to_search));


Perhaps the documentation could be changed to something like:

 "dangling_symlinks"
          If true and a code reference and "follow => 1", will be called
with the symbolic link
          name and the directory it lives in as arguments.  Otherwise, if
true
          and warnings are on, warning "symbolic_link_name is a dangling
symbolic
          link\n" will be issued.  If false, the dangling symbolic link will
be
          silently ignored.
#591242#15
Date:
2010-08-02 17:28:26 UTC
From:
To:
Hi Jeremiah,

Am Montag, den 02.08.2010, 09:13 -0700 schrieb Jeremiah Mahler:

but note that there are cases where the user does not want follow, but
still want dangling_symlinks. So while a change of documentation would
of course be an improvement, a proper fix would be more useful.

Greetings,
Joachim
#591242#22
Date:
2013-04-29 21:17:47 UTC
From:
To:
Hi Joachim,

Could you provide a bit more information about this to the upstream
bug report? It should be enough to reply-all to this message.

Thanks!
Dominic.
#591242#25
Date:
2013-04-29 21:17:47 UTC
From:
To:
Hi Joachim,

Could you provide a bit more information about this to the upstream
bug report? It should be enough to reply-all to this message.

Thanks!
Dominic.
#591242#38
Date:
2021-09-27 13:36:36 UTC
From:
To:
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-----Original Message-----
#591242#41
Date:
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From:
To:
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Date:
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From:
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Date:
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From:
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