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fix cpu_usage: cannot set to 0 decimal places

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Jesús 2019-04-23 15:34:25 -05:00
parent e20f7b6242
commit c1a11261f2
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1 changed files with 14 additions and 7 deletions
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21
scripts/i3blocks/cpu_usage
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@ -12,26 +12,31 @@ use utf8;
use Getopt::Long; use Getopt::Long;
# default values # default values
my $t_warn = 50; my $t_warn = $ENV{T_WARN} // 50;
my $t_crit = 80; my $t_crit = $ENV{T_CRIT} // 80;
my $cpu_usage = -1; my $cpu_usage = -1;
my $decimals = $ENV{DECIMALS} // 2;
my $label = $ENV{LABEL} // "";
sub help { sub help {
print "Usage: cpu_usage [-w <warning>] [-c <critical>]\n"; print "Usage: cpu_usage [-w <warning>] [-c <critical>] [-d <decimals>]\n";
print "-w <percent>: warning threshold to become yellow\n"; print "-w <percent>: warning threshold to become yellow\n";
print "-c <percent>: critical threshold to become red\n"; print "-c <percent>: critical threshold to become red\n";
print "-d <decimals>: Use <decimals> decimals for percentage (default is $decimals) \n";
exit 0; exit 0;
} }
GetOptions("help|h" => \&help, GetOptions("help|h" => \&help,
"w=i" => \$t_warn, "w=i" => \$t_warn,
"c=i" => \$t_crit); "c=i" => \$t_crit,
"d=i" => \$decimals,
);
# Get CPU usage # 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 $ENV{LC_ALL}="en_US"; # if mpstat is not run under en_US locale, things may break, so make sure it is
open (MPSTAT, 'mpstat 1 1 |') or die; open (MPSTAT, 'mpstat 1 1 |') or die;
while (<MPSTAT>) { while (<MPSTAT>) {
if (/^.*\s+(\d+\.\d+)\s+$/) { if (/^.*\s+(\d+\.\d+)[\s\x00]?$/) {
$cpu_usage = 100 - $1; # 100% - %idle $cpu_usage = 100 - $1; # 100% - %idle
last; last;
} }
@ -41,8 +46,10 @@ close(MPSTAT);
$cpu_usage eq -1 and die 'Can\'t find CPU information'; $cpu_usage eq -1 and die 'Can\'t find CPU information';
# Print short_text, full_text # Print short_text, full_text
printf "%.2f%%\n", $cpu_usage; print "${label}";
printf "%.2f%%\n", $cpu_usage; printf "%.${decimals}f%%\n", $cpu_usage;
print "${label}";
printf "%.${decimals}f%%\n", $cpu_usage;
# Print color, if needed # Print color, if needed
if ($cpu_usage >= $t_crit) { if ($cpu_usage >= $t_crit) {