dotfiles/.i3blocks/cpu_usage

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#!/usr/bin/perl
#
# Copyright 2014 Pierre Mavro <deimos@deimos.fr>
# Copyright 2014 Vivien Didelot <vivien@didelot.org>
# Copyright 2014 Andreas Guldstrand <andreas.guldstrand@gmail.com>
#
# Licensed under the terms of the GNU GPL v3, or any later version.
use strict;
use warnings;
use utf8;
use Getopt::Long;
# default values
my $t_warn = 70;
my $t_crit = 90;
my $cpu_usage = -1;
sub help {
print "Usage: cpu_usage [-w <warning>] [-c <critical>]\n";
print "-w <percent>: warning threshold to become yellow\n";
print "-c <percent>: critical threshold to become red\n";
exit 0;
}
GetOptions("help|h" => \&help,
"w=i" => \$t_warn,
"c=i" => \$t_crit);
# Get CPU usage
$ENV{LC_ALL}="en_US"; # if mpstat is not run under en_US locale, things may break, so make sure it is
open (MPSTAT, 'mpstat 1 1 |') or die;
while (<MPSTAT>) {
if (/^.*\s+(\d+\.\d+)\s+$/) {
$cpu_usage = 100 - $1; # 100% - %idle
last;
}
}
close(MPSTAT);
$cpu_usage eq -1 and die 'Can\'t find CPU information';
# Print short_text, full_text
#printf "%5.2f%%\n", $cpu_usage;
#printf "%2d%%\n", $cpu_usage;
my $color = "";
# Print color, if needed
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if ($cpu_usage >= 90) {
$color = "#f2777a";
#exit 33;
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} elsif ($cpu_usage >= 70) {
$color = "#f99157";
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} elsif ($cpu_usage >= 50) {
$color = "#ffcc66";
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} elsif ($cpu_usage >= 10) {
$color = "#99cc99";
} else {
$color = "#66cccc";
}
my $pave = " ";
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#if ($cpu_usage <= 11) {
# $pave = " ";
#} elsif ($cpu_usage <= 22 ){
# $pave = "▁";
#} elsif ($cpu_usage <= 33){
# $pave = "▂";
#} elsif ($cpu_usage <= 44){
# $pave = "▃";
#} elsif ($cpu_usage <= 56){
# $pave = "▄";
#} elsif ($cpu_usage <= 67){
# $pave = "▅";
#} elsif ($cpu_usage <= 78){
# $pave = "▆";
#} elsif ($cpu_usage <= 89){
# $pave = "▇";
#} else {
# $pave = "█";
#}
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#printf "<span foreground=\"$color\">%2.0d%</span> <span foreground=\"$color\" background=\"#515151\">$pave</span>", $cpu_usage;
printf "<span foreground=\"$color\">%2.0d%%</span>", $cpu_usage;
exit 0;