+++ /dev/null
-#!/usr/bin/perl -w
-# virt-df
-# Copyright (C) 2009 Red Hat Inc.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-use warnings;
-use strict;
-
-use Sys::Guestfs;
-use Sys::Guestfs::Lib qw(open_guest get_partitions resolve_windows_path
- inspect_all_partitions inspect_partition
- inspect_operating_systems mount_operating_system inspect_in_detail);
-use Pod::Usage;
-use Getopt::Long;
-use Data::Dumper;
-use File::Temp qw/tempdir/;
-use XML::Writer;
-use Locale::TextDomain 'libguestfs';
-
-=encoding utf8
-
-=head1 NAME
-
-virt-df - Display free space on virtual filesystems
-
-=head1 SYNOPSIS
-
- virt-df [--options]
-
- virt-df [--options] domname
-
- virt-df [--options] disk.img [disk.img ...]
-
-=head1 DESCRIPTION
-
-C<virt-df> is a command line tool to display free space on virtual
-machine filesystems. Unlike other tools, it doesn't just display the
-amount of space allocated to a virtual machine, but can look inside
-the virtual machine to see how much space is really being used.
-
-It is like the L<df(1)> command, but for virtual machines, except that
-it also works for Windows virtual machines.
-
-If used without any arguments, C<virt-df> checks with libvirt to get a
-list of all active and inactive guests, and performs a C<df>-type
-operation on each one in turn, printing out the results.
-
-If used with any argument(s), C<virt-df> performs a C<df>-type
-operation on either the single named libvirt domain, or on the disk
-image(s) listed on the command line (which must all belong to a single
-VM). In this mode (with arguments), C<virt-df> will I<only work for a
-single guest>. If you want to run on multiple guests, then you have
-to invoke C<virt-df> multiple times.
-
-Use the C<--csv> option to get a format which can be easily parsed by
-other programs. Other options are mostly similar to standard C<df>
-options. See below for the complete list.
-
-=head1 OPTIONS
-
-=over 4
-
-=cut
-
-my $help;
-
-=item B<--help>
-
-Display brief help.
-
-=cut
-
-my $version;
-
-=item B<--version>
-
-Display version number and exit.
-
-=cut
-
-my $uri;
-
-=item B<--connect URI> | B<-c URI>
-
-If using libvirt, connect to the given I<URI>. If omitted, then we
-connect to the default libvirt hypervisor.
-
-If you specify guest block devices directly, then libvirt is not used
-at all.
-
-=cut
-
-my $csv;
-
-=item B<--csv>
-
-Write out the results in CSV format (comma-separated values).
-This format can be imported easily into databases and spreadsheets.
-
-=cut
-
-my $human;
-
-=item B<--human-readable> | B<-h>
-
-Print sizes in human-readable format.
-
-=cut
-
-my $inodes;
-
-=item B<--inodes> | B<-i>
-
-Print inodes instead of blocks.
-
-=back
-
-=cut
-
-GetOptions ("help|?" => \$help,
- "version" => \$version,
- "connect|c=s" => \$uri,
- "csv" => \$csv,
- "human-readable|human|h" => \$human,
- "inodes|i" => \$inodes,
- ) or pod2usage (2);
-pod2usage (1) if $help;
-if ($version) {
- my $g = Sys::Guestfs->new ();
- my %h = $g->version ();
- print "$h{major}.$h{minor}.$h{release}$h{extra}\n";
- exit
-}
-
-# Open the guest handle.
-
-if (@ARGV == 0) {
- my $conn;
-
- if ($uri) {
- $conn = Sys::Virt->new (readonly => 1, address => $uri);
- } else {
- $conn = Sys::Virt->new (readonly => 1);
- }
-
- my @doms = $conn->list_defined_domains ();
- push @doms, $conn->list_domains ();
-
- my @domnames = map { $_->get_name () } @doms;
-
- if (@domnames) {
- print_title ();
- foreach (@domnames) {
- do_df ($_);
- }
- }
-} else {
- print_title ();
- do_df (@ARGV);
-}
-
-sub do_df
-{
- my $g;
-
- if ($uri) {
- $g = open_guest (\@_, address => $uri);
- } else {
- $g = open_guest (\@_);
- }
-
- $g->launch ();
-
- my @partitions = get_partitions ($g);
-
- # Think of a printable name for this domain. Just choose the
- # first parameter passed to this function, which will work for
- # most cases (it'll either be the domain name or the first disk
- # image name).
- my $domname = $_[0];
-
- # Mount each partition in turn, and if mountable, do a statvfs on it.
- foreach my $partition (@partitions) {
- my %stat;
- eval {
- $g->mount_ro ($partition, "/");
- %stat = $g->statvfs ("/");
- };
- if (!$@) {
- print_stat ($domname, $partition, \%stat);
- }
- $g->umount_all ();
- }
-}
-
-sub print_stat
-{
- my $domname = shift;
- my $partition = shift;
- my $stat = shift;
-
- my @cols = ($domname, $partition);
-
- if (!$inodes) {
- my $bsize = $stat->{bsize}; # block size
- my $blocks = $stat->{blocks}; # total number of blocks
- my $bfree = $stat->{bfree}; # blocks free (total)
- my $bavail = $stat->{bavail}; # blocks free (for non-root users)
-
- my $factor = $bsize / 1024;
-
- push @cols, $blocks*$factor; # total 1K blocks
- push @cols, ($blocks-$bfree)*$factor; # total 1K blocks used
- push @cols, $bavail*$factor; # total 1K blocks available
-
- # XXX %used column comes out different from the native 'df'
- # program. Need to check how 'df' calculates this.
- push @cols, 100.0 - 100.0 * $bavail / $blocks;
-
- if ($human) {
- $cols[2] = human_size ($cols[2]);
- $cols[3] = human_size ($cols[3]);
- $cols[4] = human_size ($cols[4]);
- }
- } else {
- my $files = $stat->{files}; # total number of inodes
- my $ffree = $stat->{ffree}; # inodes free (total)
- my $favail = $stat->{favail}; # inodes free (for non-root users)
-
- push @cols, $files;
- push @cols, $files-$ffree;
- push @cols, $ffree;
-
- # XXX %used column comes out different from the native 'df'
- # program. Need to check how 'df' calculates this.
- push @cols, 100.0 - 100.0 * $favail / $files;
- }
-
- print_cols (@cols);
-}
-
-sub print_title
-{
- my @cols = (__"Virtual Machine", __"Filesystem");
- if (!$inodes) {
- if (!$human) {
- push @cols, __"1K-blocks";
- } else {
- push @cols, __"Size";
- }
- push @cols, __"Used";
- push @cols, __"Available";
- push @cols, __"Use%";
- } else {
- push @cols, __"Inodes";
- push @cols, __"IUsed";
- push @cols, __"IFree";
- push @cols, __"IUse%";
- }
-
- if (!$csv) {
- # ignore $cols[0] in this mode
- printf "%-36s%10s %10s %10s %5s\n",
- $cols[1], $cols[2], $cols[3], $cols[4], $cols[5];
- } else {
- print (join (",", @cols), "\n");
- }
-}
-
-sub print_cols
-{
- if (!$csv) {
- my $label = sprintf "%s:%s", $_[0], $_[1];
-
- printf ("%-36s", $label);
- print "\n"," "x36 if length ($label) > 36;
-
- my $percent = sprintf "%3.1f%%", $_[5];
- printf ("%10s %10s %10s %5s\n", $_[2], $_[3], $_[4], $percent);
- } else {
- printf ("\"%s\",\"%s\",%d,%d,%d,%.1f%%\n", @_);
- }
-}
-
-# Convert a number of 1K blocks to a human-readable number.
-sub human_size
-{
- local $_ = shift;
-
- if ($_ < 1024) {
- sprintf "%dK", $_;
- } elsif ($_ < 1024 * 1024) {
- sprintf "%.1fM", ($_ / 1024);
- } else {
- sprintf "%.1fG", ($_ / 1024 / 1024);
- }
-}
-
-=head1 SEE ALSO
-
-L<guestfs(3)>,
-L<guestfish(1)>,
-L<Sys::Guestfs(3)>,
-L<Sys::Guestfs::Lib(3)>,
-L<Sys::Virt(3)>,
-L<http://libguestfs.org/>.
-
-=head1 AUTHOR
-
-Richard W.M. Jones L<http://et.redhat.com/~rjones/>
-
-=head1 COPYRIGHT
-
-Copyright (C) 2009 Red Hat Inc.
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
git.annexia.org / libguestfs.git / blobdiff