114 lines
2.7 KiB
Perl
114 lines
2.7 KiB
Perl
|
package File::stat;
|
||
|
|
use strict;
|
||
|
|
|
||
|
|
BEGIN {
|
||
|
|
use Exporter ();
|
||
|
|
use vars qw(@EXPORT @EXPORT_OK %EXPORT_TAGS);
|
||
|
|
@EXPORT = qw(stat lstat);
|
||
|
|
@EXPORT_OK = qw( $st_dev $st_ino $st_mode
|
||
|
|
$st_nlink $st_uid $st_gid
|
||
|
|
$st_rdev $st_size
|
||
|
|
$st_atime $st_mtime $st_ctime
|
||
|
|
$st_blksize $st_blocks
|
||
|
|
);
|
||
|
|
%EXPORT_TAGS = ( FIELDS => [ @EXPORT_OK, @EXPORT ] );
|
||
|
|
}
|
||
|
|
use vars @EXPORT_OK;
|
||
|
|
|
||
|
|
# Class::Struct forbids use of @ISA
|
||
|
|
sub import { goto &Exporter::import }
|
||
|
|
|
||
|
|
use Class::Struct qw(struct);
|
||
|
|
struct 'File::stat' => [
|
||
|
|
map { $_ => '$' } qw{
|
||
|
|
dev ino mode nlink uid gid rdev size
|
||
|
|
atime mtime ctime blksize blocks
|
||
|
|
}
|
||
|
|
];
|
||
|
|
|
||
|
|
sub populate (@) {
|
||
|
|
return unless @_;
|
||
|
|
my $stob = new();
|
||
|
|
@$stob = (
|
||
|
|
$st_dev, $st_ino, $st_mode, $st_nlink, $st_uid, $st_gid, $st_rdev,
|
||
|
|
$st_size, $st_atime, $st_mtime, $st_ctime, $st_blksize, $st_blocks )
|
||
|
|
= @_;
|
||
|
|
return $stob;
|
||
|
|
}
|
||
|
|
|
||
|
|
sub lstat ($) { populate(CORE::lstat(shift)) }
|
||
|
|
|
||
|
|
sub stat ($) {
|
||
|
|
my $arg = shift;
|
||
|
|
my $st = populate(CORE::stat $arg);
|
||
|
|
return $st if $st;
|
||
|
|
no strict 'refs';
|
||
|
|
require Symbol;
|
||
|
|
return populate(CORE::stat \*{Symbol::qualify($arg)});
|
||
|
|
}
|
||
|
|
|
||
|
|
1;
|
||
|
|
__END__
|
||
|
|
|
||
|
|
=head1 NAME
|
||
|
|
|
||
|
|
File::stat - by-name interface to Perl's built-in stat() functions
|
||
|
|
|
||
|
|
=head1 SYNOPSIS
|
||
|
|
|
||
|
|
use File::stat;
|
||
|
|
$st = stat($file) or die "No $file: $!";
|
||
|
|
if ( ($st->mode & 0111) && $st->nlink > 1) ) {
|
||
|
|
print "$file is executable with lotsa links\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
use File::stat qw(:FIELDS);
|
||
|
|
stat($file) or die "No $file: $!";
|
||
|
|
if ( ($st_mode & 0111) && $st_nlink > 1) ) {
|
||
|
|
print "$file is executable with lotsa links\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
=head1 DESCRIPTION
|
||
|
|
|
||
|
|
This module's default exports override the core stat()
|
||
|
|
and lstat() functions, replacing them with versions that return
|
||
|
|
"File::stat" objects. This object has methods that
|
||
|
|
return the similarly named structure field name from the
|
||
|
|
stat(2) function; namely,
|
||
|
|
dev,
|
||
|
|
ino,
|
||
|
|
mode,
|
||
|
|
nlink,
|
||
|
|
uid,
|
||
|
|
gid,
|
||
|
|
rdev,
|
||
|
|
size,
|
||
|
|
atime,
|
||
|
|
mtime,
|
||
|
|
ctime,
|
||
|
|
blksize,
|
||
|
|
and
|
||
|
|
blocks.
|
||
|
|
|
||
|
|
You may also import all the structure fields directly into your namespace
|
||
|
|
as regular variables using the :FIELDS import tag. (Note that this still
|
||
|
|
overrides your stat() and lstat() functions.) Access these fields as
|
||
|
|
variables named with a preceding C<st_> in front their method names.
|
||
|
|
Thus, C<$stat_obj-E<gt>dev()> corresponds to $st_dev if you import
|
||
|
|
the fields.
|
||
|
|
|
||
|
|
To access this functionality without the core overrides,
|
||
|
|
pass the C<use> an empty import list, and then access
|
||
|
|
function functions with their full qualified names.
|
||
|
|
On the other hand, the built-ins are still available
|
||
|
|
via the C<CORE::> pseudo-package.
|
||
|
|
|
||
|
|
=head1 NOTE
|
||
|
|
|
||
|
|
While this class is currently implemented using the Class::Struct
|
||
|
|
module to build a struct-like class, you shouldn't rely upon this.
|
||
|
|
|
||
|
|
=head1 AUTHOR
|
||
|
|
|
||
|
|
Tom Christiansen
|