use strict;
use Carp;
-use UNIVERSAL qw(isa);
use vars qw(@ISA @EXPORT @EXPORT_OK $VERSION $Too_Big
- © &syscopy &cp &mv);
+ © &syscopy &cp &mv $Syscopy_is_copy);
# Note that this module implements only *part* of the API defined by
# the File/Copy.pm module of the File-Tools-2.0 package. However, that
# package has not yet been updated to work with Perl 5.004, and so it
# would be a Bad Thing for the CPAN module to grab it and replace this
# module. Therefore, we set this module's version higher than 2.0.
-$VERSION = '2.01';
+$VERSION = '2.03';
require Exporter;
@ISA = qw(Exporter);
my $from_a_handle = (ref($from)
? (ref($from) eq 'GLOB'
- || isa($from, 'GLOB') || isa($from, 'IO::Handle'))
+ || UNIVERSAL::isa($from, 'GLOB')
+ || UNIVERSAL::isa($from, 'IO::Handle'))
: (ref(\$from) eq 'GLOB'));
my $to_a_handle = (ref($to)
? (ref($to) eq 'GLOB'
- || isa($to, 'GLOB') || isa($to, 'IO::Handle'))
+ || UNIVERSAL::isa($to, 'GLOB')
+ || UNIVERSAL::isa($to, 'IO::Handle'))
: (ref(\$to) eq 'GLOB'));
if (!$from_a_handle && !$to_a_handle && -d $to && ! -d $from) {
$to = _catname($from, $to);
}
- if (defined &syscopy && \&syscopy != \©
- && $from_a_handle
- && ($to_a_handle || $^O eq 'os2'))
+ if (defined &syscopy && !$Syscopy_is_copy
+ && !$to_a_handle
+ && !($from_a_handle && $^O eq 'os2' ) # OS/2 cannot handle handles
+ && !($from_a_handle && $^O eq 'mpeix') # and neither can MPE/iX.
+ && !($from_a_handle && $^O eq 'MSWin32')
+ )
{
return syscopy($from, $to);
}
open(FROM, "< $from\0") or goto fail_open1;
binmode FROM or die "($!,$^E)";
$closefrom = 1;
- }
-
+ }
+
if ($to_a_handle) {
*TO = *$to{FILEHANDLE};
- } else {
+ } else {
$to = "./$to" if $to =~ /^\s/;
open(TO,"> $to\0") or goto fail_open2;
binmode TO or die "($!,$^E)";
$closeto = 1;
- }
+ }
if (@_) {
$size = shift(@_) + 0;
# Use this idiom to avoid uninitialized value warning.
return 1;
-
+
# All of these contortions try to preserve error messages...
fail_inner:
if ($closeto) {
($tosz1,$tomt1) = (stat($to))[7,9];
$fromsz = -s $from;
+ if ($^O eq 'os2' and defined $tosz1 and defined $fromsz) {
+ # will not rename with overwrite
+ unlink $to;
+ }
return 1 if rename $from, $to;
($sts,$ossts) = ($! + 0, $^E + 0);
(($tosz2,$tomt2) = (stat($to))[7,9]) && # $to's there
($tosz1 != $tosz2 or $tomt1 != $tomt2) && # and changed
$tosz2 == $fromsz; # it's all there
-
+
($tosz1,$tomt1) = (stat($to))[7,9]; # just in case rename did something
return 1 if ($copied = copy($from,$to)) && unlink($from);
-
+
($tosz2,$tomt2) = ((stat($to))[7,9],0,0) if defined $tomt1;
unlink($to) if !defined($tomt1) or $tomt1 != $tomt2 or $tosz1 != $tosz2;
($!,$^E) = ($sts,$ossts);
*mv = \&move;
# &syscopy is an XSUB under OS/2
-*syscopy = ($^O eq 'VMS' ? \&rmscopy : \©) unless defined &syscopy;
+unless (defined &syscopy) {
+ if ($^O eq 'VMS') {
+ *syscopy = \&rmscopy;
+ } elsif ($^O eq 'mpeix') {
+ *syscopy = sub {
+ return 0 unless @_ == 2;
+ # Use the MPE cp program in order to
+ # preserve MPE file attributes.
+ return system('/bin/cp', '-f', $_[0], $_[1]) == 0;
+ };
+ } elsif ($^O eq 'MSWin32') {
+ *syscopy = sub {
+ return 0 unless @_ == 2;
+ return Win32::CopyFile(@_, 1);
+ };
+ } else {
+ $Syscopy_is_copy = 1;
+ *syscopy = \©
+ }
+}
1;
glob. Obviously, if the first argument is a filehandle of some
sort, it will be read from, and if it is a file I<name> it will
be opened for reading. Likewise, the second argument will be
-written to (and created if need be). If the second argument is
-a file name and specifies an existing directory, and the first
-argument does not specify
+written to (and created if need be).
B<Note that passing in
files as handles instead of names may lead to loss of information
on some operating systems; it is recommended that you use file
-names whenever possible.>
+names whenever possible.> Files are opened in binary mode where
+applicable. To get a consistent behaviour when copying from a
+filehandle to a file, use C<binmode> on the filehandle.
An optional third parameter can be used to specify the buffer
size used for copying. This is the number of bytes from the
structure. For Unix systems, this is equivalent to the simple
C<copy> routine. For VMS systems, this calls the C<rmscopy>
routine (see below). For OS/2 systems, this calls the C<syscopy>
-XSUB directly.
+XSUB directly. For Win32 systems, this calls C<Win32::CopyFile>.
-=head2 Special behavior if C<syscopy> is defined (VMS and OS/2)
+=head2 Special behaviour if C<syscopy> is defined (OS/2, VMS and Win32)
If both arguments to C<copy> are not file handles,
then C<copy> will perform a "system copy" of
=head1 AUTHOR
File::Copy was written by Aaron Sherman I<E<lt>ajs@ajs.comE<gt>> in 1995,
-and updated by Charles Bailey I<E<lt>bailey@genetics.upenn.eduE<gt>> in 1996.
+and updated by Charles Bailey I<E<lt>bailey@newman.upenn.eduE<gt>> in 1996.
=cut