Re: Re: Re: in memory files in 5.6.1

[hanenkamp]

Not true, this should work:

use IO::Scalar;
my $fh = IO::Scalar->new;
print $fh "foo\n";  # Rather than $fh->print ...

# or, if you prefer
select $fh;
print "bar\n";

This works through the magic of a tied file handle. See perltie for details on tying a file handle.

[WolliK]

Hi hanenkamp,
please do you have an idea to how handle these kind of "InMemoryfile" to put this on a local drive or to a webserver via HTTP::DAV of (S)FTP ?
The transfer programs allways want to have a filename instead a filehandle.

Regards
WolliK

[afoken]

how handle these kind of "InMemoryfile" to put this on a local drive

Well, just use a plain file instead!

or to a webserver via HTTP::DAV of (S)FTP ? The transfer programs allways want to have a filename instead a filehandle.

HTTP::DAV implements WebDAV, which is, as the name suggests, an extension to HTTP. HTTP does not know anything about files. So a sane DAV client should be able to upload arbitary data, not just files. And in fact, HTTP::DAV documents for the put method:

One can upload/put a string by passing a reference to a scalar in the -local parameter.

Of course, to access the scalar behind IO::Scalar, you need to pass a reference to a scalar to the constructor IO::Scalar->new(), see IO::Scalar. BTW: You would pass the same reference to HTTP::DAV's put() method.

Net::SFTP implements open, read, write, close. No need to mess with in-memory files, but of course, you could write the scalar used to store the in-memory file using Net::SFTP's write method.

Net::FTP accepts a file name or a file handle for put(), so you should be able to pass the IO::Scalar instance to put().

Alexander

[WolliK]

Hi affoken,


I've tried different ways, but none of them works. I've created a InMemoryFile withe two lines;
foo_line_01\n
foo_line_02\n


Here are the output of my tests:


Try to upload all the *.txt files from this directory:

command: ..put( -local => "*.txt",   -url => "$url/$base_dir/$work_dir" )
Reply..:   put *.txt succeeded

Try to upload the InMemoryfile accessed via filehandler $fh:

command: ..put( -local => "$fh",    -url => "$url/$base_dir/$work_dir" )
Reply..:   put foo_Line_01
foo_Line_02
 failed

command: ..put( -local => \$fh,     -url => "$url/$base_dir/$work_dir" )
Reply..:   put REF(0x274dc28) failed

command: ..put( -local => $fhref,   -url => "$url/$base_dir/$work_dir" )
Reply..:   put REF(0x274dc28) failed 

command: ..put( -local => "\$fh",   -url => "$url/$base_dir/$work_dir" )
Reply..:   put $fh failed

command: ..put( -local => "\$fhref",-url => "$url/$base_dir/$work_dir" )
Reply..:   put $fhref failed

Any idea how to handle the -local parameter of the HTTP::DAV put request for an InMemoryfile linehandler?

Regards
WolliK