1 package File::Copy::Recursive;
5 # Keep older versions of Perl from trying to use lexical warnings
6 $INC{'warnings.pm'} = "fake warnings entry for < 5.6 perl ($])" if $] < 5.006;
12 use File::Spec; #not really needed because File::Copy already gets it, but for good measure :)
15 @ISA @EXPORT_OK $VERSION $MaxDepth $KeepMode $CPRFComp $CopyLink
16 $PFSCheck $RemvBase $NoFtlPth $ForcePth $CopyLoop $RMTrgFil $RMTrgDir
17 $CondCopy $BdTrgWrn $SkipFlop $DirPerms
22 @EXPORT_OK = qw(fcopy rcopy dircopy fmove rmove dirmove pathmk pathrm pathempty pathrmdir);
28 $CopyLink = eval { local $SIG{'__DIE__'};symlink '',''; 1 } || 0;
42 return 1 if $^O eq 'MSWin32'; # need better way to check for this on winders...
43 return if @_ != 2 || !defined $_[0] || !defined $_[1];
44 return if $_[0] eq $_[1];
48 $one = join( '-', ( stat $_[0] )[0,1] ) || '';
49 my $two = join( '-', ( stat $_[1] )[0,1] ) || '';
50 if ( $one eq $two && $one ) {
51 carp "$_[0] and $_[1] are identical";
56 if(-d $_[0] && !$CopyLoop) {
57 $one = join( '-', ( stat $_[0] )[0,1] ) if !$one;
58 my $abs = File::Spec->rel2abs($_[1]);
59 my @pth = File::Spec->splitdir( $abs );
61 my $cur = File::Spec->catdir(@pth);
62 last if !$cur; # probably not necessary, but nice to have just in case :)
63 my $two = join( '-', ( stat $cur )[0,1] ) || '';
64 if ( $one eq $two && $one ) {
65 # $! = 62; # Too many levels of symbolic links
66 carp "Caught Deep Recursion Condition: $_[0] contains $_[1]";
78 my ($do, $src_glob, @args) = @_;
83 for my $path ( glob($src_glob) ) {
84 my @call = [$do->($path, @args)] or return;
95 @x = fcopy(@_) or return;
97 @x = dircopy(@_) or return;
101 unlink $_[0] or return;
103 pathrmdir($_[0]) or return;
106 my ($volm, $path) = File::Spec->splitpath($_[0]);
107 pathrm(File::Spec->catpath($volm,$path,''), $ForcePth, $NoFtlPth) or return;
110 return wantarray ? @x : $x[0];
113 my $ok_todo_asper_condcopy = sub {
116 if(exists $CondCopy->{$org}) {
117 if($CondCopy->{$org}{'md5'}) {
128 $samecheck->(@_) or return;
129 if($RMTrgFil && (-d $_[1] || -e $_[1]) ) {
132 my @trgx = File::Spec->splitpath( $_[0] );
133 $trg = File::Spec->catfile( $_[1], $trgx[ $#trgx ] );
135 $samecheck->($_[0], $trg) or return;
138 unlink $trg or carp "\$RMTrgFil failed: $!";
140 unlink $trg or return;
144 my ($volm, $path) = File::Spec->splitpath($_[1]);
145 if($path && !-d $path) {
146 pathmk(File::Spec->catpath($volm,$path,''), $NoFtlPth);
148 if( -l $_[0] && $CopyLink ) {
149 carp "Copying a symlink ($_[0]) whose target does not exist"
150 if !-e readlink($_[0]) && $BdTrgWrn;
151 symlink readlink(shift()), shift() or return;
155 my @base_file = File::Spec->splitpath($_[0]);
156 my $mode_trg = -d $_[1] ? File::Spec->catfile($_[1], $base_file[ $#base_file ]) : $_[1];
158 chmod scalar((stat($_[0]))[2]), $mode_trg if $KeepMode;
160 return wantarray ? (1,0,0) : 1; # use 0's incase they do math on them and in case rcopy() is called in list context = no uninit val warnings
164 if (-l $_[0] && $CopyLink) {
168 goto &dircopy if -d $_[0] || substr( $_[0], ( 1 * -1), 1) eq '*';
173 $glob->(\&rcopy, @_);
177 if($RMTrgDir && -d $_[1]) {
179 pathrmdir($_[1]) or carp "\$RMTrgDir failed: $!";
181 pathrmdir($_[1]) or return;
187 if ( substr( $_zero, ( 1 * -1 ), 1 ) eq '*') {
189 $_zero = substr( $_zero, 0, ( length( $_zero ) - 1 ) );
192 $samecheck->( $_zero, $_[1] ) or return;
193 if ( !-d $_zero || ( -e $_[1] && !-d $_[1] ) ) {
199 pathmk($_[1], $NoFtlPth) or return;
201 if($CPRFComp && !$globstar) {
202 my @parts = File::Spec->splitdir($_zero);
203 while($parts[ $#parts ] eq '') { pop @parts; }
204 $_one = File::Spec->catdir($_[1], $parts[$#parts]);
212 my $recurs; #must be my()ed before sub {} since it calls itself
214 my ($str,$end,$buf) = @_;
215 $filen++ if $end eq $baseend;
216 $dirn++ if $end eq $baseend;
218 $DirPerms = oct($DirPerms) if substr($DirPerms,0,1) eq '0';
219 mkdir($end,$DirPerms) or return if !-d $end;
220 chmod scalar((stat($str))[2]), $end if $KeepMode;
221 if($MaxDepth && $MaxDepth =~ m/^\d+$/ && $level >= $MaxDepth) {
222 return ($filen,$dirn,$level) if wantarray;
230 opendir(STR_DH, $str) or return;
231 @files = grep( $_ ne '.' && $_ ne '..', readdir(STR_DH));
235 opendir(my $str_dh, $str) or return;
236 @files = grep( $_ ne '.' && $_ ne '..', readdir($str_dh));
240 for my $file (@files) {
241 my ($file_ut) = $file =~ m{ (.*) }xms;
242 my $org = File::Spec->catfile($str, $file_ut);
243 my $new = File::Spec->catfile($end, $file_ut);
244 if( -l $org && $CopyLink ) {
245 carp "Copying a symlink ($org) whose target does not exist"
246 if !-e readlink($org) && $BdTrgWrn;
247 symlink readlink($org), $new or return;
250 $recurs->($org,$new,$buf) if defined $buf;
251 $recurs->($org,$new) if !defined $buf;
256 if($ok_todo_asper_condcopy->($org)) {
258 fcopy($org,$new,$buf) or next if defined $buf;
259 fcopy($org,$new) or next if !defined $buf;
262 fcopy($org,$new,$buf) or return if defined $buf;
263 fcopy($org,$new) or return if !defined $buf;
265 chmod scalar((stat($org))[2]), $new if $KeepMode;
273 $recurs->($_zero, $_one, $_[2]) or return;
274 return wantarray ? ($filen,$dirn,$level) : $filen;
277 sub fmove { $move->(1, @_) }
280 if (-l $_[0] && $CopyLink) {
284 goto &dirmove if -d $_[0] || substr( $_[0], ( 1 * -1), 1) eq '*';
289 $glob->(\&rmove, @_);
292 sub dirmove { $move->(0, @_) }
295 my @parts = File::Spec->splitdir( shift() );
300 $pth = File::Spec->catdir($parts[0],$parts[1]);
304 $DirPerms = oct($DirPerms) if substr($DirPerms,0,1) eq '0';
305 mkdir($pth,$DirPerms) or return if !-d $pth && !$nofatal;
306 mkdir($pth,$DirPerms) if !-d $pth && $nofatal;
307 $pth = File::Spec->catdir($pth, $parts[$_ + 1]) unless $_ == $#parts;
315 return 2 if !-d $pth;
320 opendir(PTH_DH, $pth) or return;
321 @names = grep !/^\.+$/, readdir(PTH_DH);
324 opendir($pth_dh, $pth) or return;
325 @names = grep !/^\.+$/, readdir($pth_dh);
328 for my $name (@names) {
329 my ($name_ut) = $name =~ m{ (.*) }xms;
330 my $flpth = File::Spec->catdir($pth, $name_ut);
333 unlink $flpth or return;
336 pathrmdir($flpth) or return;
339 unlink $flpth or return;
355 return 2 if !-d $path;
356 my @pth = File::Spec->splitdir( $path );
360 my $cur = File::Spec->catdir(@pth);
361 last if !$cur; # necessary ???
363 pathempty($cur) or return if $force;
364 rmdir $cur or return;
367 pathempty($cur) if $force;
384 pathempty($dir) or return;
386 rmdir $dir or return;
395 File::Copy::Recursive - Perl extension for recursively copying files and directories
399 use File::Copy::Recursive qw(fcopy rcopy dircopy fmove rmove dirmove);
401 fcopy($orig,$new[,$buf]) or die $!;
402 rcopy($orig,$new[,$buf]) or die $!;
403 dircopy($orig,$new[,$buf]) or die $!;
405 fmove($orig,$new[,$buf]) or die $!;
406 rmove($orig,$new[,$buf]) or die $!;
407 dirmove($orig,$new[,$buf]) or die $!;
409 rcopy_glob("orig/stuff-*", $trg [, $buf]) or die $!;
410 rmove_glob("orig/stuff-*", $trg [,$buf]) or die $!;
414 This module copies and moves directories recursively (or single files, well... singley) to an optional depth and attempts to preserve each file or directory's mode.
418 None by default. But you can export all the functions as in the example above and the path* functions if you wish.
422 This function uses File::Copy's copy() function to copy a file but not a directory. Any directories are recursively created if need be.
423 One difference to File::Copy::copy() is that fcopy attempts to preserve the mode (see Preserving Mode below)
424 The optional $buf in the synopsis if the same as File::Copy::copy()'s 3rd argument
425 returns the same as File::Copy::copy() in scalar context and 1,0,0 in list context to accomidate rcopy()'s list context on regular files. (See below for more info)
429 This function recursively traverses the $orig directory's structure and recursively copies it to the $new directory.
430 $new is created if necessary (multiple non existant directories is ok (IE foo/bar/baz). The script logically and portably creates all of them if necessary).
431 It attempts to preserve the mode (see Preserving Mode below) and
432 by default it copies all the way down into the directory, (see Managing Depth) below.
433 If a directory is not specified it croaks just like fcopy croaks if its not a file that is specified.
435 returns true or false, for true in scalar context it returns the number of files and directories copied,
436 In list context it returns the number of files and directories, number of directories only, depth level traversed.
438 my $num_of_files_and_dirs = dircopy($orig,$new);
439 my($num_of_files_and_dirs,$num_of_dirs,$depth_traversed) = dircopy($orig,$new);
441 Normally it stops and return's if a copy fails, to continue on regardless set $File::Copy::Recursive::SkipFlop to true.
443 local $File::Copy::Recursive::SkipFlop = 1;
445 That way it will copy everythgingit can ina directory and won't stop because of permissions, etc...
449 This function will allow you to specify a file *or* directory. It calls fcopy() if its a file and dircopy() if its a directory.
450 If you call rcopy() (or fcopy() for that matter) on a file in list context, the values will be 1,0,0 since no directories and no depth are used.
451 This is important becasue if its a directory in list context and there is only the initial directory the return value is 1,1,1.
455 This function lets you specify a pattern suitable for perl's glob() as the first argument. Subsequently each path returned by perl's glob() gets rcopy()ied.
457 It returns and array whose items are array refs that contain the return value of each rcopy() call.
459 It forces behavior as if $File::Copy::Recursive::CPRFComp is true.
463 Copies the file then removes the original. You can manage the path the original file is in according to $RemvBase.
467 Uses dircopy() to copy the directory then removes the original. You can manage the path the original directory is in according to $RemvBase.
471 Like rcopy() but calls fmove() or dirmove() instead.
475 Like rcopy_glob() but calls rmove() instead of rcopy()
479 Default is false. When set to true the *move() functions will not only attempt to remove the original file or directory but will remove the given path it is in.
483 rmove('foo/bar/baz', '/etc/');
484 # "baz" is removed from foo/bar after it is successfully copied to /etc/
486 local $File::Copy::Recursive::Remvbase = 1;
487 rmove('foo/bar/baz','/etc/');
488 # if baz is successfully copied to /etc/ :
489 # first "baz" is removed from foo/bar
490 # then "foo/bar is removed via pathrm()
494 Default is false. When set to true it calls pathempty() before any directories are removed to empty the directory so it can be rmdir()'ed when $RemvBase is in effect.
496 =head2 Creating and Removing Paths
500 Default is false. If set to true rmdir(), mkdir(), and pathempty() calls in pathrm() and pathmk() do not return() on failure.
502 If its set to true they just silently go about their business regardless. This isn't a good idea but its there if you want it.
506 Mode to pass to any mkdir() calls. Defaults to 0777 as per umask()'s POD. Explicitly having this allows older perls to be able to use FCR and might add a bit of flexibility for you.
508 Any value you set it to should be suitable for oct()
510 =head3 Path functions
512 These functions exist soley because they were necessary for the move and copy functions to have the features they do and not because they are of themselves the purpose of this module. That being said, here is how they work so you can understand how the copy and move funtions work and use them by themselves if you wish.
516 Removes a given path recursively. It removes the *entire* path so be carefull!!!
518 Returns 2 if the given path is not a directory.
520 File::Copy::Recursive::pathrm('foo/bar/baz') or die $!;
521 # foo no longer exists
525 rmdir 'foo/bar/baz' or die $!;
526 rmdir 'foo/bar' or die $!;
527 rmdir 'foo' or die $!;
529 An optional second argument makes it call pathempty() before any rmdir()'s when set to true.
531 File::Copy::Recursive::pathrm('foo/bar/baz', 1) or die $!;
532 # foo no longer exists
536 File::Copy::Recursive::pathempty('foo/bar/baz') or die $!;
537 rmdir 'foo/bar/baz' or die $!;
538 File::Copy::Recursive::pathempty('foo/bar/') or die $!;
539 rmdir 'foo/bar' or die $!;
540 File::Copy::Recursive::pathempty('foo/') or die $!;
541 rmdir 'foo' or die $!;
543 An optional third argument acts like $File::Copy::Recursive::NoFtlPth, again probably not a good idea.
547 Recursively removes the given directory's contents so it is empty. returns 2 if argument is not a directory, 1 on successfully emptying the directory.
549 File::Copy::Recursive::pathempty($pth) or die $!;
550 # $pth is now an empty directory
554 Creates a given path recursively. Creates foo/bar/baz even if foo does not exist.
556 File::Copy::Recursive::pathmk('foo/bar/baz') or die $!;
558 An optional second argument if true acts just like $File::Copy::Recursive::NoFtlPth, which means you'd never get your die() if something went wrong. Again, probably a *bad* idea.
562 Same as rmdir() but it calls pathempty() first to recursively empty it first since rmdir can not remove a directory with contents.
563 Just removes the top directory the path given instead of the entire path like pathrm(). Return 2 if given argument does not exist (IE its already gone). Return false if it exists but is not a directory.
565 =head2 Preserving Mode
567 By default a quiet attempt is made to change the new file or directory to the mode of the old one.
568 To turn this behavior off set
569 $File::Copy::Recursive::KeepMode
572 =head2 Managing Depth
574 You can set the maximum depth a directory structure is recursed by setting:
575 $File::Copy::Recursive::MaxDepth
576 to a whole number greater than 0.
580 If your system supports symlinks then symlinks will be copied as symlinks instead of as the target file.
581 Perl's symlink() is used instead of File::Copy's copy()
582 You can customize this behavior by setting $File::Copy::Recursive::CopyLink to a true or false value.
583 It is already set to true or false dending on your system's support of symlinks so you can check it with an if statement to see how it will behave:
585 if($File::Copy::Recursive::CopyLink) {
586 print "Symlinks will be preserved\n";
588 print "Symlinks will not be preserved because your system does not support it\n";
591 If symlinks are being copied you can set $File::Copy::Recursive::BdTrgWrn to true to make it carp when it copies a link whose target does not exist. Its false by default.
593 local $File::Copy::Recursive::BdTrgWrn = 1;
595 =head2 Removing existing target file or directory before copying.
597 This can be done by setting $File::Copy::Recursive::RMTrgFil or $File::Copy::Recursive::RMTrgDir for file or directory behavior respectively.
599 0 = off (This is the default)
601 1 = carp() $! if removal fails
603 2 = return if removal fails
605 local $File::Copy::Recursive::RMTrgFil = 1;
606 fcopy($orig, $target) or die $!;
607 # if it fails it does warn() and keeps going
609 local $File::Copy::Recursive::RMTrgDir = 2;
610 dircopy($orig, $target) or die $!;
611 # if it fails it does your "or die"
613 This should be unnecessary most of the time but its there if you need it :)
615 =head2 Turning off stat() check
617 By default the files or directories are checked to see if they are the same (IE linked, or two paths (absolute/relative or different relative paths) to the same file) by comparing the file's stat() info.
618 It's a very efficient check that croaks if they are and shouldn't be turned off but if you must for some weird reason just set $File::Copy::Recursive::PFSCheck to a false value. ("PFS" stands for "Physical File System")
620 =head2 Emulating cp -rf dir1/ dir2/
622 By default dircopy($dir1,$dir2) will put $dir1's contents right into $dir2 whether $dir2 exists or not.
624 You can make dircopy() emulate cp -rf by setting $File::Copy::Recursive::CPRFComp to true.
626 NOTE: This only emulates -f in the sense that it does not prompt. It does not remove the target file or directory if it exists.
627 If you need to do that then use the variables $RMTrgFil and $RMTrgDir described in "Removing existing target file or directory before copying" above.
629 That means that if $dir2 exists it puts the contents into $dir2/$dir1 instead of $dir2 just like cp -rf.
630 If $dir2 does not exist then the contents go into $dir2 like normal (also like cp -rf)
632 So assuming 'foo/file':
634 dircopy('foo', 'bar') or die $!;
635 # if bar does not exist the result is bar/file
636 # if bar does exist the result is bar/file
638 $File::Copy::Recursive::CPRFComp = 1;
639 dircopy('foo', 'bar') or die $!;
640 # if bar does not exist the result is bar/file
641 # if bar does exist the result is bar/foo/file
643 You can also specify a star for cp -rf glob type behavior:
645 dircopy('foo/*', 'bar') or die $!;
646 # if bar does not exist the result is bar/file
647 # if bar does exist the result is bar/file
649 $File::Copy::Recursive::CPRFComp = 1;
650 dircopy('foo/*', 'bar') or die $!;
651 # if bar does not exist the result is bar/file
652 # if bar does exist the result is bar/file
654 NOTE: The '*' is only like cp -rf foo/* and *DOES NOT EXPAND PARTIAL DIRECTORY NAMES LIKE YOUR SHELL DOES* (IE not like cp -rf fo* to copy foo/*)
656 =head2 Allowing Copy Loops
658 If you want to allow:
662 type behavior set $File::Copy::Recursive::CopyLoop to true.
664 This is false by default so that a check is done to see if the source directory will contain the target directory and croaks to avoid this problem.
666 If you ever find a situation where $CopyLoop = 1 is desirable let me know (IE its a bad bad idea but is there if you want it)
668 (Note: On Windows this was necessary since it uses stat() to detemine samedness and stat() is essencially useless for this on Windows.
669 The test is now simply skipped on Windows but I'd rather have an actual reliable check if anyone in Microsoft land would care to share)
673 L<File::Copy> L<File::Spec>
677 I am currently working on and reviewing some other modules to use in the new interface so we can lose the horrid globals as well as some other undesirable traits and also more easily make available some long standing requests.
679 Tests will be easier to do with the new interface and hence the testing focus will shift to the new interface and aim to be comprehensive.
681 The old interface will work, it just won't be brought in until it is used, so it will add no overhead for users of the new interface.
683 I'll add this after the latest verision has been out for a while with no new features or issues found :)
687 Daniel Muey, L<http://drmuey.com/cpan_contact.pl>
689 =head1 COPYRIGHT AND LICENSE
691 Copyright 2004 by Daniel Muey
693 This library is free software; you can redistribute it and/or modify
694 it under the same terms as Perl itself.