package File::Copy;
-use 5.005_64;
+use 5.6.0;
use strict;
+use warnings;
use Carp;
+use File::Spec;
+use Config;
our(@ISA, @EXPORT, @EXPORT_OK, $VERSION, $Too_Big, $Syscopy_is_copy);
sub copy;
sub syscopy;
# package has not yet been updated to work with Perl 5.004, and so it
# would be a Bad Thing for the CPAN module to grab it and replace this
# module. Therefore, we set this module's version higher than 2.0.
-$VERSION = '2.03';
+$VERSION = '2.05';
require Exporter;
@ISA = qw(Exporter);
$Too_Big = 1024 * 1024 * 2;
-sub _catname { # Will be replaced by File::Spec when it arrives
+sub _catname {
my($from, $to) = @_;
if (not defined &basename) {
require File::Basename;
import File::Basename 'basename';
}
- if ($^O eq 'VMS') { $to = VMS::Filespec::vmspath($to) . basename($from); }
- elsif ($^O eq 'MacOS') { $to .= ':' . basename($from); }
- elsif ($to =~ m|\\|) { $to .= '\\' . basename($from); }
- else { $to .= '/' . basename($from); }
+
+ if ($^O eq 'MacOS') {
+ # a partial dir name that's valid only in the cwd (e.g. 'tmp')
+ $to = ':' . $to if $to !~ /:/;
+ }
+
+ return File::Spec->catfile($to, basename($from));
}
sub copy {
|| UNIVERSAL::isa($to, 'IO::Handle'))
: (ref(\$to) eq 'GLOB'));
+ if ($from eq $to) { # works for references, too
+ croak("'$from' and '$to' are identical (not copied)");
+ }
+
+ if ($Config{d_symlink} && $Config{d_readlink} &&
+ !($^O eq 'Win32' || $^O eq 'os2' || $^O eq 'vms')) {
+ if ((-e $from && -l $from) || (-e $to && -l $to)) {
+ my @fs = stat($from);
+ my @ts = stat($to);
+ if (@fs && @ts && $fs[0] == $ts[0] && $fs[1] == $ts[1]) {
+ croak("'$from' and '$to' are identical (not copied)");
+ }
+ }
+ }
+
if (!$from_a_handle && !$to_a_handle && -d $to && ! -d $from) {
$to = _catname($from, $to);
}
&& !($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 && $^O eq 'MSWin32')
+ && !($from_a_handle && $^O eq 'MacOS')
+ && !($from_a_handle && $^O eq 'NetWare')
)
{
return syscopy($from, $to);
my $closefrom = 0;
my $closeto = 0;
my ($size, $status, $r, $buf);
- local(*FROM, *TO);
local($\) = '';
+ my $from_h;
if ($from_a_handle) {
- *FROM = *$from{FILEHANDLE};
+ $from_h = $from;
} else {
- $from = "./$from" if $from =~ /^\s/;
- open(FROM, "< $from\0") or goto fail_open1;
- binmode FROM or die "($!,$^E)";
+ $from = _protect($from) if $from =~ /^\s/s;
+ $from_h = \do { local *FH };
+ open($from_h, "< $from\0") or goto fail_open1;
+ binmode $from_h or die "($!,$^E)";
$closefrom = 1;
}
+ my $to_h;
if ($to_a_handle) {
- *TO = *$to{FILEHANDLE};
+ $to_h = $to;
} else {
- $to = "./$to" if $to =~ /^\s/;
- open(TO,"> $to\0") or goto fail_open2;
- binmode TO or die "($!,$^E)";
+ $to = _protect($to) if $to =~ /^\s/s;
+ $to_h = \do { local *FH };
+ open($to_h,"> $to\0") or goto fail_open2;
+ binmode $to_h or die "($!,$^E)";
$closeto = 1;
}
$size = shift(@_) + 0;
croak("Bad buffer size for copy: $size\n") unless ($size > 0);
} else {
- $size = -s FROM;
+ no warnings 'uninitialized';
+ $size = -s $from_h;
$size = 1024 if ($size < 512);
$size = $Too_Big if ($size > $Too_Big);
}
$! = 0;
for (;;) {
my ($r, $w, $t);
- defined($r = sysread(FROM, $buf, $size))
+ defined($r = sysread($from_h, $buf, $size))
or goto fail_inner;
last unless $r;
for ($w = 0; $w < $r; $w += $t) {
- $t = syswrite(TO, $buf, $r - $w, $w)
+ $t = syswrite($to_h, $buf, $r - $w, $w)
or goto fail_inner;
}
}
- close(TO) || goto fail_open2 if $closeto;
- close(FROM) || goto fail_open1 if $closefrom;
+ close($to_h) || goto fail_open2 if $closeto;
+ close($from_h) || goto fail_open1 if $closefrom;
# Use this idiom to avoid uninitialized value warning.
return 1;
if ($closeto) {
$status = $!;
$! = 0;
- close TO;
+ close $to_h;
$! = $status unless $!;
}
fail_open2:
if ($closefrom) {
$status = $!;
$! = 0;
- close FROM;
+ close $from_h;
$! = $status unless $!;
}
fail_open1:
*cp = \©
*mv = \&move;
+
+if ($^O eq 'MacOS') {
+ *_protect = sub { MacPerl::MakeFSSpec($_[0]) };
+} else {
+ *_protect = sub { "./$_[0]" };
+}
+
# &syscopy is an XSUB under OS/2
unless (defined &syscopy) {
if ($^O eq 'VMS') {
return 0 unless @_ == 2;
return Win32::CopyFile(@_, 1);
};
+ } elsif ($^O eq 'MacOS') {
+ require Mac::MoreFiles;
+ *syscopy = sub {
+ my($from, $to) = @_;
+ my($dir, $toname);
+
+ return 0 unless -e $from;
+
+ if ($to =~ /(.*:)([^:]+):?$/) {
+ ($dir, $toname) = ($1, $2);
+ } else {
+ ($dir, $toname) = (":", $to);
+ }
+
+ unlink($to);
+ Mac::MoreFiles::FSpFileCopy($from, $dir, $toname, 1);
+ };
} else {
$Syscopy_is_copy = 1;
*syscopy = \©
use POSIX;
use File::Copy cp;
- $n=FileHandle->new("/dev/null","r");
+ $n = FileHandle->new("/a/file","r");
cp($n,"x");'
=head1 DESCRIPTION
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).
+written to (and created if need be). Trying to copy a file on top
+of itself is a fatal error.
B<Note that passing in
files as handles instead of names may lead to loss of information
All functions return 1 on success, 0 on failure.
$! will be set if an error was encountered.
+=head1 NOTES
+
+=over 4
+
+=item *
+
+On Mac OS (Classic), the path separator is ':', not '/', and the
+current directory is denoted as ':', not '.'. You should be careful
+about specifying relative pathnames. While a full path always begins
+with a volume name, a relative pathname should always begin with a
+':'. If specifying a volume name only, a trailing ':' is required.
+
+E.g.
+
+ copy("file1", "tmp"); # creates the file 'tmp' in the current directory
+ copy("file1", ":tmp:"); # creates :tmp:file1
+ copy("file1", ":tmp"); # same as above
+ copy("file1", "tmp"); # same as above, if 'tmp' is a directory (but don't do
+ # that, since it may cause confusion, see example #1)
+ copy("file1", "tmp:file1"); # error, since 'tmp:' is not a volume
+ copy("file1", ":tmp:file1"); # ok, partial path
+ copy("file1", "DataHD:"); # creates DataHD:file1
+
+ move("MacintoshHD:fileA", "DataHD:fileB"); # moves (don't copies) files from one
+ # volume to another
+
+=back
+
=head1 AUTHOR
File::Copy was written by Aaron Sherman I<E<lt>ajs@ajs.comE<gt>> in 1995,
projects / p5sagit/p5-mst-13.2.git / blobdiff