Detecting files in a virtual file system ?

[Aldo Buratti]

How can I detect if a given pathname refers to a file on the native-OS filesystem, or in a vfs virtual filesystem ?

I premise that I read the documentation about [file system ....] but it does not state exactly what should be returned ( ... it might be "vfs ftp" .... ).
I found that it also might return "tclvfs" ... but of course this is not a rule.

Any suggestions ?

ABU

[Mike Griffiths]

I think the reason it doesn't state exactly is that extensions may add additional capabilities with additional values for this. But it's a one or two element list, and you can probably assume that

if { [lindex [file system $file] 0] ne "native" } {
# vfs
}

is accurate enough for most purposes.

[blacksqr]

From the Tclvfs manual page:


vfs::filesystem info ?path?

If no arguments are given, this returns a list of all filesystems mounted (in all interpreters). If a path argument is given, then the command to be used for that path is returned, or an error is thrown if no vfs is mounted for that path.

[Aldo Buratti]

It's OK for my purpose. Thanks !