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package File::Path;
=head1 NAME
File::Path - create or remove a series of directories
=head1 SYNOPSIS
C<use File::Path>
C<mkpath(['/foo/bar/baz', 'blurfl/quux'], 1, 0711);>
C<rmtree(['foo/bar/baz', 'blurfl/quux'], 1, 1);>
=head1 DESCRIPTION
The C<mkpath> function provides a convenient way to create directories, even if
your C<mkdir> kernel call won't create more than one level of directory at a
time. C<mkpath> takes three arguments:
=over 4
=item *
the name of the path to create, or a reference
to a list of paths to create,
=item *
a boolean value, which if TRUE will cause C<mkpath>
to print the name of each directory as it is created
(defaults to FALSE), and
=item *
the numeric mode to use when creating the directories
(defaults to 0777)
=back
It returns a list of all directories (including intermediates, determined using
the Unix '/' separator) created.
Similarly, the C<rmtree> function provides a convenient way to delete a
subtree from the directory structure, much like the Unix command C<rm -r>.
C<rmtree> takes three arguments:
=over 4
=item *
the root of the subtree to delete, or a reference to
a list of roots. All of the files and directories
below each root, as well as the roots themselves,
will be deleted.
=item *
a boolean value, which if TRUE will cause C<rmtree> to
print a message each time it examines a file, giving the
name of the file, and indicating whether it's using C<rmdir>
or C<unlink> to remove it, or that it's skipping it.
(defaults to FALSE)
=item *
a boolean value, which if TRUE will cause C<rmtree> to
skip any files to which you do not have delete access
(if running under VMS) or write access (if running
under another OS). This will change in the future when
a criterion for 'delete permission' under OSs other
than VMS is settled. (defaults to FALSE)
=back
It returns the number of files successfully deleted.
=head1 AUTHORS
Tim Bunce <Tim.Bunce@ig.co.uk>
Charles Bailey <bailey@genetics.upenn.edu>
=head1 REVISION
This document was last revised 25-Aug-1995, for perl 5.002
=cut
require 5.000;
use Config;
use Carp;
require Exporter;
@ISA = qw( Exporter );
@EXPORT = qw( mkpath rmtree );
$Is_VMS = $Config{'osname'} eq 'VMS';
sub mkpath{
my($paths, $verbose, $mode) = @_;
# $paths -- either a path string or ref to list of paths
# $verbose -- optional print "mkdir $path" for each directory created
# $mode -- optional permissions, defaults to 0777
local($")="/";
$mode = 0777 unless defined($mode);
$paths = [$paths] unless ref $paths;
my(@created);
foreach $path (@$paths){
next if -d $path;
my(@p);
foreach(split(/\//, $path)){
push(@p, $_);
next if -d "@p/";
print "mkdir @p\n" if $verbose;
mkdir("@p",$mode) || croak "mkdir @p: $!";
push(@created, "@p");
}
}
@created;
}
sub rmtree {
my($roots, $verbose, $safe) = @_;
my(@files);
my($count) = 0;
$roots = [$roots] unless ref $roots;
foreach $root (@{$roots}) {
$root =~ s#/$##;
if (-d $root) {
opendir(D,$root);
($root = VMS::Filespec::unixify($root)) =~ s#\.dir$## if $Is_VMS;
@files = map("$root/$_", grep $_!~/^\.{1,2}$/, readdir(D));
closedir(D);
$count += rmtree(\@files,$verbose,$safe);
if ($safe &&
($Is_VMS ? !&VMS::Filespec::candelete($root) : !-w $root)) {
print "skipped $root\n" if $verbose;
next;
}
print "rmdir $root\n" if $verbose;
(rmdir $root && ++$count) or carp "Can't remove directory $root: $!";
}
else {
if ($safe &&
($Is_VMS ? !&VMS::Filespec::candelete($root) : !-w $root)) {
print "skipped $root\n" if $verbose;
next;
}
print "unlink $root\n" if $verbose;
while (-e $root) { # delete all versions under VMS
(unlink($root) && ++$count)
or carp "Can't unlink file $root: $!";
}
}
}
$count;
}
1;
__END__
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