.Dd May 15, 2020
.Dt Horizon::DiskMan::Disk::fs_type 3
.Os "Adélie Linux"
.Sh NAME
.Nm Horizon::DiskMan::Disk::has_fs ,
.Nm Horizon::DiskMan::Disk::fs_type ,
.Nm Horizon::DiskMan::Disk::fs_label
.Nd retrieve file system information for a disk
.Sh SYNOPSIS
.In diskman/disk.hh
.Cm using Horizon::DiskMan::Disk;
.Ft bool
.Fo Disk::has_fs
.Fc
.Ft const std::string
.Fo Disk::fs_type
.Fc
.Ft const std::string
.Fo Disk::fs_label
.Fc
.Sh DESCRIPTION
The
.Fn Disk::has_fs
function returns whether the disk has a file system written directly to it
(without a disk label or partition).
.Pp
The
.Fn Disk::fs_type
function provides the type of file system present and the
.Fn Disk::fs_label
function provides the file system's label (if set).  Both of these functions
are only valid to be called if
.Fn Disk::has_fs
returns true.
.Sh RETURN VALUES
The
.Fn Disk::has_fs
function returns true if the disk has a file system written to it without a
disk label.
.Pp
The
.Fn Disk::fs_type
and
.Fn Disk::fs_label
functions return std::string containing the requested information, if
.Fn Disk::has_fs
returns true.
.Sh EXAMPLES
The following is a simple utility that will print the label and file system
type for each disk attached to the system that has one:
.Bd -literal -offset indent
#include "diskman/diskman.hh"
#include <iostream>

int main(void) {
    Horizon::DiskMan::DiskMan diskMan;
    auto disks = diskMan.find_disks(false, false, true);
    for(auto &disk : disks) {
        std::cout << "Disk: " << disk.name() << std::endl;
        std::cout << "FS: ";
        if(disk.has_fs()) {
            std::cout << "\\"" << disk.fs_label() << "\\" (" << disk.fs_type() << ")";
        } else std::cout << "No";
        std::cout << std::endl;
    }
    return 0;
}
.Ed
.Sh SEE ALSO
.Xr Horizon::DiskMan::Disk 3 ,
.Xr Horizon::DiskMan::DiskMan 3 ,
.Xr Horizon::DiskMan::Partition 3 .
.Sh HISTORY
The DiskMan library first appeared in Horizon 0.9.
.Sh AUTHORS
.An A. Wilcox
.Aq awilfox@adelielinux.org