5 File::Path - create or remove a series of directories
11 C<mkpath(['/foo/bar/baz', 'blurfl/quux'], 1, 0711);>
13 C<rmtree(['foo/bar/baz', 'blurfl/quux'], 1, 1);>
17 The C<mkpath> function provides a convenient way to create directories, even
18 if your C<mkdir> kernel call won't create more than one level of directory at
19 a time. C<mkpath> takes three arguments:
25 the name of the path to create, or a reference
26 to a list of paths to create,
30 a boolean value, which if TRUE will cause C<mkpath>
31 to print the name of each directory as it is created
32 (defaults to FALSE), and
36 the numeric mode to use when creating the directories
41 It returns a list of all directories (including intermediates, determined
42 using the Unix '/' separator) created.
44 Similarly, the C<rmtree> function provides a convenient way to delete a
45 subtree from the directory structure, much like the Unix command C<rm -r>.
46 C<rmtree> takes three arguments:
52 the root of the subtree to delete, or a reference to
53 a list of roots. All of the files and directories
54 below each root, as well as the roots themselves,
59 a boolean value, which if TRUE will cause C<rmtree> to
60 print a message each time it examines a file, giving the
61 name of the file, and indicating whether it's using C<rmdir>
62 or C<unlink> to remove it, or that it's skipping it.
67 a boolean value, which if TRUE will cause C<rmtree> to
68 skip any files to which you do not have delete access
69 (if running under VMS) or write access (if running
70 under another OS). This will change in the future when
71 a criterion for 'delete permission' under OSs other
72 than VMS is settled. (defaults to FALSE)
76 It returns the number of files successfully deleted. Symlinks are
77 treated as ordinary files.
79 B<NOTE:> If the third parameter is not TRUE, C<rmtree> is B<unsecure>
80 in the face of failure or interruption. Files and directories which
81 were not deleted may be left with permissions reset to allow world
82 read and write access. Note also that the occurrence of errors in
83 rmtree can be determined I<only> by trapping diagnostic messages
84 using C<$SIG{__WARN__}>; it is not apparent from the return value.
85 Therefore, you must be extremely careful about using C<rmtree($foo,$bar,0>
86 in situations where security is an issue.
90 Tim Bunce <F<Tim.Bunce@ig.co.uk>> and
91 Charles Bailey <F<bailey@newman.upenn.edu>>
96 use File::Basename ();
101 use vars qw( $VERSION @ISA @EXPORT );
103 @ISA = qw( Exporter );
104 @EXPORT = qw( mkpath rmtree );
106 my $Is_VMS = $^O eq 'VMS';
108 # These OSes complain if you want to remove a file that you have no
109 # write permission to:
110 my $force_writeable = ($^O eq 'os2' || $^O eq 'dos' || $^O eq 'MSWin32'
111 || $^O eq 'amigaos');
114 my($paths, $verbose, $mode) = @_;
115 # $paths -- either a path string or ref to list of paths
116 # $verbose -- optional print "mkdir $path" for each directory created
117 # $mode -- optional permissions, defaults to 0777
119 $mode = 0777 unless defined($mode);
120 $paths = [$paths] unless ref $paths;
122 foreach $path (@$paths) {
123 $path .= '/' if $^O eq 'os2' and $path =~ /^\w:$/; # feature of CRT
125 # Logic wants Unix paths, so go with the flow.
126 $path = VMS::Filespec::unixify($path) if $Is_VMS;
127 my $parent = File::Basename::dirname($path);
128 # Allow for creation of new logical filesystems under VMS
129 if (not $Is_VMS or $parent !~ m:/[^/]+/000000/?:) {
130 push(@created,mkpath($parent, $verbose, $mode)) unless (-d $parent);
132 print "mkdir $path\n" if $verbose;
133 unless (mkdir($path,$mode)) {
135 # allow for another process to have created it meanwhile
136 croak "mkdir $path: $e" unless -d $path;
138 push(@created, $path);
144 my($roots, $verbose, $safe) = @_;
150 if ( defined($roots) && length($roots) ) {
151 $roots = [$roots] unless ref $roots;
154 carp "No root path(s) specified\n";
159 foreach $root (@{$roots}) {
161 (undef, undef, my $rp) = lstat $root or next;
162 $rp &= 07777; # don't forget setuid, setgid, sticky bits
164 # notabene: 0777 is for making readable in the first place,
165 # it's also intended to change it to writable in case we have
166 # to recurse in which case we are better than rm -rf for
167 # subtrees with strange permissions
168 chmod(0777, ($Is_VMS ? VMS::Filespec::fileify($root) : $root))
169 or carp "Can't make directory $root read+writeable: $!"
172 my $d = DirHandle->new($root)
173 or carp "Can't read $root: $!";
177 # Deleting large numbers of files from VMS Files-11 filesystems
178 # is faster if done in reverse ASCIIbetical order
179 @files = reverse @files if $Is_VMS;
180 ($root = VMS::Filespec::unixify($root)) =~ s#\.dir$## if $Is_VMS;
181 @files = map("$root/$_", grep $_!~/^\.{1,2}$/,@files);
182 $count += rmtree(\@files,$verbose,$safe);
184 ($Is_VMS ? !&VMS::Filespec::candelete($root) : !-w $root)) {
185 print "skipped $root\n" if $verbose;
189 or carp "Can't make directory $root writeable: $!"
191 print "rmdir $root\n" if $verbose;
196 carp "Can't remove directory $root: $!";
197 chmod($rp, ($Is_VMS ? VMS::Filespec::fileify($root) : $root))
198 or carp("and can't restore permissions to "
199 . sprintf("0%o",$rp) . "\n");
204 ($Is_VMS ? !&VMS::Filespec::candelete($root) : !-w $root)) {
205 print "skipped $root\n" if $verbose;
209 or carp "Can't make file $root writeable: $!"
211 print "unlink $root\n" if $verbose;
212 # delete all versions under VMS
214 unless (unlink $root) {
215 carp "Can't unlink file $root: $!";
216 if ($force_writeable) {
218 or carp("and can't restore permissions to "
219 . sprintf("0%o",$rp) . "\n");
224 last unless $Is_VMS && lstat $root;