Re: OS X Lion - breakdown of features, changes - appleinsider

Barry Margolin wrote:

Don't they already have this problem with forks and file attribute lists?

Bot FTP and NFS have mechanisms that allow transfers between two similar
systems to be "native" to their file system.

For instance, between 2 VMS systems, it is possible to FTP an indexed
file with all the index intact. But from a VMS to other system, an
indexed file is transmitted as a sequential file with CR/LF at end of
each record. (sorted by primary key).

With NFS, VMS has the ability to store VMS-specific file attributes onto
the remote unix system so that when the file is accessed by a VMS
system, it can get the file attributes and process the file as a native
VMS file.

I would imagine that Apple had done the same for NFS and FTP in terms of
attributes when it is dealing with another OS-X instance. Perhaps they
didn't, but it is technically possible.

Note that at the command line, the artificial ".app" construct doesn't
exist, and this file is simply a directory. So when you wish to copy a
..app at the command line, you need a recursive copy to copy all the
files under that directory. In the Finder, you manipulate it as a single
file.

It is quite likely that versioning will only be available from the GUI.
Not sure how it will be impleented at the command line.

If a blob of data in a file contains multiple versions:

should cp myfile.data yourfile.data result in an indetical copy of the
whole file with the same file size, or should it copy only the most
recent version of the data, resulting in the destination file being
smaller than the source ?


Perhaps they should have gone with a directory structure like a .app
which, to the GUI, looks like one file, but when manipulating at command
line, you get to see all versions inside.

.

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