From: Ilya Zakharevich <ilya@math.ohio-state.edu>
Date: Sat, 28 Dec 1996 03:47:24 +0000 (-0500)
Subject: File::Copy under OS/2
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=e6434134bc7810d4f3ff9ff4fa5a9ead178c3097;p=p5sagit%2Fp5-mst-13.2.git

File::Copy under OS/2

Chip Salzenberg writes:
>
> Patch now, tarchive later:
>
>     file: $CPAN/authors/id/CHIPS/perl5.003_17.pat.gz

Almost clean under OS/2: the only problem is with File::Copy: the
test for syscopy was inverted, and test contained some Un*xisms.

Note that the POD contains some line noise, I marked it with ?????.

Enjoy,

p5p-msgid: <199612280347.WAA00293@monk.mps.ohio-state.edu>
---

diff --git a/lib/File/Copy.pm b/lib/File/Copy.pm
index 70c5eb8..b1baa20 100644
--- a/lib/File/Copy.pm
+++ b/lib/File/Copy.pm
@@ -18,7 +18,7 @@ use vars qw(@ISA @EXPORT @EXPORT_OK $VERSION $Too_Big
 # package has not yet been updated to work with Perl 5.004, and so it
 # would be a Bad Thing for the CPAN module to grab it and replace this
 # module.  Therefore, we set this module's version higher than 2.0.
-$VERSION = '2.01';
+$VERSION = '2.02';
 
 require Exporter;
 @ISA = qw(Exporter);
@@ -60,8 +60,8 @@ sub copy {
     }
 
     if (defined &syscopy && \&syscopy != \&copy
-	&& $from_a_handle
-	&& ($to_a_handle || $^O eq 'os2'))
+	&& !$to_a_handle
+	&& !($from_a_handle && $^O eq 'os2'))	# OS/2 cannot handle handles
     {
 	return syscopy($from, $to);
     }
@@ -146,6 +146,10 @@ sub move {
 
     ($tosz1,$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);
@@ -209,14 +213,14 @@ argument may be a string, a FileHandle reference or a FileHandle
 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 behavour 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
diff --git a/t/lib/filecopy.t b/t/lib/filecopy.t
index 0a5f4c1..b718215 100755
--- a/t/lib/filecopy.t
+++ b/t/lib/filecopy.t
@@ -29,56 +29,60 @@ print "not " unless $foo eq "ok 3\n";
 print "ok 2\n";
 
 copy "copy-$$", \*STDOUT;
-unlink "copy-$$";
+unlink "copy-$$" or die "unlink: $!";
 
 open(F,"file-$$");
 copy(*F, "copy-$$");
-open(R, "copy-$$") or die; $foo = <R>; close(R);
+open(R, "copy-$$") or die "open copy-$$: $!"; $foo = <R>; close(R);
 print "not " unless $foo eq "ok 3\n";
 print "ok 4\n";
-unlink "copy-$$";
+unlink "copy-$$" or die "unlink: $!";
 open(F,"file-$$");
 copy(\*F, "copy-$$");
-open(R, "copy-$$") or die; $foo = <R>; close(R);
+close(F) or die "close: $!";
+open(R, "copy-$$") or die; $foo = <R>; close(R) or die "close: $!";
 print "not " unless $foo eq "ok 3\n";
 print "ok 5\n";
-unlink "copy-$$";
+unlink "copy-$$" or die "unlink: $!";
 
 require IO::File;
 $fh = IO::File->new(">copy-$$") or die "Cannot open copy-$$:$!";
+binmode $fh or die;
 copy("file-$$",$fh);
-$fh->close;
+$fh->close or die "close: $!";
 open(R, "copy-$$") or die; $foo = <R>; close(R);
-print "not " unless $foo eq "ok 3\n";
+print "# foo=`$foo'\nnot " unless $foo eq "ok 3\n";
 print "ok 6\n";
-unlink "copy-$$";
+unlink "copy-$$" or die "unlink: $!";
 require FileHandle;
 my $fh = FileHandle->new(">copy-$$") or die "Cannot open copy-$$:$!";
+binmode $fh or die;
 copy("file-$$",$fh);
 $fh->close;
 open(R, "copy-$$") or die; $foo = <R>; close(R);
 print "not " unless $foo eq "ok 3\n";
 print "ok 7\n";
-unlink "file-$$";
+unlink "file-$$" or die "unlink: $!";
 
-print "not " if move("file-$$", "copy-$$") or not -e "copy-$$";
+print "# moved missing file.\nnot " if move("file-$$", "copy-$$");
+print "# target disappeared.\nnot " if not -e "copy-$$";
 print "ok 8\n";
 
-move "copy-$$", "file-$$";
-print "not " unless -e "file-$$" and not -e "copy-$$";
+move "copy-$$", "file-$$" or print "# move did not succeed.\n";
+print "# not moved: $!\nnot " unless -e "file-$$" and not -e "copy-$$";
 open(R, "file-$$") or die; $foo = <R>; close(R);
-print "not " unless $foo eq "ok 3\n";
+print "# foo=`$foo'\nnot " unless $foo eq "ok 3\n";
 print "ok 9\n";
 
 copy "file-$$", "lib";
 open(R, "lib/file-$$") or die; $foo = <R>; close(R);
 print "not " unless $foo eq "ok 3\n";
 print "ok 10\n";
-unlink "lib/file-$$";
+unlink "lib/file-$$" or die "unlink: $!";
 
 move "file-$$", "lib";
-open(R, "lib/file-$$") or die; $foo = <R>; close(R);
+open(R, "lib/file-$$") or die "open lib/file-$$: $!"; $foo = <R>; close(R);
 print "not " unless $foo eq "ok 3\n" and not -e "file-$$";;
 print "ok 11\n";
-unlink "lib/file-$$";
+unlink "lib/file-$$" or die "unlink: $!";