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#!/usr/bin/env perl
## Copyright © 2010 by Daniel Friesel <derf@finalrewind.org>
## License: WTFPL <http://sam.zoy.org/wtfpl>
## 0. You just DO WHAT THE FUCK YOU WANT TO.
use strict;
use warnings;
use 5.010;
no if $] >= 5.018, warnings => "experimental::smartmatch";
use autodie;
use Derf::Visual 'GD_bar';
use Filesys::Df;
use GD;
use Getopt::Std;
use Term::ANSIColor;
my @mounts;
my %opts;
my $alpha;
sub format_size {
my ($bytes) = @_;
my @postfix = (' ', 'k', 'M', 'G', 'T');
while ($bytes > 1000) {
$bytes /= 1000;
shift @postfix;
}
return sprintf('%3.1f%s', $bytes, $postfix[0]);
}
sub bar_console {
my ($percent, $width) = @_;
my $vlen = sprintf("%d", $width * $percent / 100);
return sprintf(
'[%s%s]',
'=' x ($vlen),
' ' x ($width - $vlen),
);
}
sub show_df_console {
my $mp_width = 10;
foreach my $mount (@mounts) {
my $this_width = length($mount->[1]);
if ($this_width > $mp_width) {
$mp_width = $this_width;
}
}
my $h_format = "%-${mp_width}s %6s %6s %6s %4s%% %20s %s\n";
my $l_format = "%-${mp_width}s %6s %6s %6s %04.1f%% %20s %s\n";
print color('yellow');
printf(
$h_format,
qw{Mountpoint Size Used Avail Use},
q{},
q{Filesystem},
);
print color('reset');
foreach my $mount (@mounts) {
# $mount->[4]->{'per'} (provided by Filesys::Df) is inaccurate
my $percent = $mount->[4]->{'used'} * 100 / $mount->[4]->{'blocks'};
printf(
$l_format,
$mount->[1],
format_size($mount->[4]->{'blocks'}),
format_size($mount->[4]->{'used'}),
format_size($mount->[4]->{'bavail'}),
$percent,
bar_console($percent, 18),
$mount->[0],
);
}
return;
}
sub show_df_png {
my $spacing = 32;
my $h = @mounts * $spacing;
my $w = 200;
my $offset_left = 5;
my $offset_top = 3;
my $offset_right = 5;
my $offset_free = $w - $offset_right - (6 * 6);
my $bar_width = $w - $offset_left - $offset_right;
my $bar_height = 10;
my $bar_top = $offset_top + 13;
my $im = GD::Image->new($w, $h);
my $black = $im->colorAllocateAlpha( 0, 0, 0, $alpha);
my $gray = $im->colorAllocateAlpha(127, 127, 127, $alpha);
my $lgray = $im->colorAllocateAlpha(191, 191, 191, $alpha);
my $white = $im->colorAllocateAlpha(255, 255, 255, $alpha);
$im->rectangle(0, 0, $w - 1, $h - 1, $gray);
$im->filledRectangle(1, 1, $w - 2, $h - 2, $white);
for my $i (0 .. $#mounts) {
my $mount = $mounts[$i];
my $percent = $mount->[4]->{'used'} * 100 / $mount->[4]->{'blocks'};
$im->string(gdSmallFont, $offset_left, $spacing * $i + $offset_top,
$mount->[1], $black);
$im->string(gdSmallFont, $offset_free, $spacing * $i + $offset_top,
sprintf("%6s", format_size($mount->[4]->{'bavail'})), $black);
$im->copy(GD_bar(
width => $bar_width,
height => $bar_height,
alpha => $alpha,
percent_filled => $percent,
lined => 6,
),
$offset_left, $spacing * $i + $bar_top, 0, 0, $bar_width,
$bar_height);
}
open(my $out_fh, '>', '/tmp/vdf.png');
binmode $out_fh;
print $out_fh $im->png();
close($out_fh);
return;
}
getopts('Aa:cfgi:', \%opts);
$alpha = $opts{'a'} // 0;
open(my $mounts_fh, '<', '/proc/mounts');
while (my $line = <$mounts_fh>) {
my ($device, $mountpoint, $type, $flags) = split(qr{ }, $line);
my $df_ref = df($mountpoint, 1);
if (not defined $df_ref) {
next;
}
push(@mounts, [
$device,
$mountpoint,
$type,
$flags,
$df_ref
]);
}
close($mounts_fh);
if (not $opts{'A'}) {
@mounts = grep { $_->[0] !~ qr{ ^ ( (root|tmp)fs | none ) $ }x } @mounts;
}
if ($opts{'i'}) {
my @ignored = split(qr{,}, $opts{'i'});
@mounts = grep { not ($_->[1] ~~ [@ignored]) } @mounts;
}
if ($opts{'c'}) {
show_df_console();
}
elsif ($opts{'g'}) {
show_df_png();
}
if ($opts{'f'}) {
exec('feh', '/tmp/vdf.png');
}
__END__
=head1 NAME
=head1 SYNOPSIS
=head1 DESCRIPTION
=head1 OPTIONS
=head1 EXIT STATUS
=head1 CONFIGURATION
=head1 DEPENDENCIES
=head1 BUGS AND LIMITATIONS
=head1 AUTHOR
Copyright (C) 2010 by Daniel Friesel E<lt>derf@finalrewind.orgE<gt>
=head1 LICENSE
0. You just DO WHAT THE FUCK YOU WANT TO.
|
