NAME
Sys::Filesystem::ID
DESCRIPTION
Will read and write an id from a filesystem for data identification purposes.
HOW IT WORKS
We create a text file at the root of the mounted filesystem in question- an id file.
MOTIVATION
This can be used to identify hard drives as they move across computers on a network. If you want to store information about a usb drive in a centralized database. Then you can move the hard drive (with partitions inside) around and you can track them.
fsid
A cli (command line interface) application is provided, called fsid, with this distribtution.
SUBS
None exported by default. This is not an OO interface.
get_id()
Argument is a device, a mount point, or a file path. Returns id string or undef if not found. Dies if it can't resolve.
get_id('/dev/hda1');
get_id('/mnt/usbdisk');
get_id('home/myself/Desktop/file1.pdf');create_id()
Argument is a device, a mount point, or a file path. Returns id string or undef if not found. Dies if it can't resolve, or if the id file already exists.
create_id('/dev/hda1');
create_id('/mnt/usbdisk');
create_id('home/myself/Desktop/file1.pdf');OVERRIDING ID GENERATION
The ide generated is a random buncha numbers 32 digits. If you want to make your own.. Override _suggest_id_string() in this package.
sub Sys::Filesystem::ID::_suggest_id_string {}The rule is it must return a string.
CAVEATS
You must have write access to create a partition id, and read access to see it. This works on posix only.
REQUIREMENTS
Sys::Filesystem
SEE ALSO
AUTHOR
Leo Charre leocharre at cpan dot org