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acpid.pl: now it sends desktop notification if charge too low

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eleksir
2018-09-23 13:54:54 +03:00
parent 48c34d96df
commit 13ff6de706
1 changed files with 65 additions and 55 deletions
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118
acpid.pl
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@@ -1,56 +1,20 @@
#!/usr/bin/perl
# hibernates laptop if battery discharging and charge is too low
#
# Hibernates system if battery charge drops under $MIN_CHARGE and battery discharging
use strict;
use warnings "all";
use Fcntl;
sub logger($); # logs messages if $debug != 0
# maybe one time i'll use it
sub i3wmstate; # returns 1 if i3wm running, else - 0
$0 = 'acpid.pl';
my $debug = 0;
sub logger ($) {
if ($debug != 0) {
my $msg = shift;
$msg = localtime() . ' ' . $msg;
syswrite STDOUT, $msg;
}
}
sub i3wmstate {
my $flag = 0;
opendir(P, '/proc') || die 'no /proc found!';
while (readdir(P)) {
my $pid = $_;
next unless(defined($pid));
next if ($pid eq '');
if (-d "/proc/$pid") {
# dir UID == APCID.pl process user owner
if ((stat("/proc/$pid"))[4] == int(getpwnam($ENV{'LOGNAME'}))) {
next unless(-r "/proc/$pid/cmdline");
open(CMDLINE, "/proc/$pid/cmdline") || die "unable to open /proc/$pid/cmdline";
my $cl = <CMDLINE>;
close(CMDLINE);
if(defined($cl)) {
if ((substr($cl, 0, 2) eq 'i3') and (length($cl) <= 4)) {
$flag = 1;
undef $cl;
undef $pid;
last;
}
}
undef $cl;
}
}
undef $pid;
}
return $flag;
}
my $MIN_CHARGE = 10;
my $base = '/sys/class/power_supply/BAT0';
@@ -67,7 +31,6 @@ while ( sleep(180) ) {
# check that battery is in place
open(ACPI, "$base/present") or next;
my $buf = '';
my $ac = 0; # assume, we're on battery
if (read(ACPI, $buf, 1)) {
if ($battery_check == 0) {
@@ -119,8 +82,6 @@ while ( sleep(180) ) {
logger("Battery charging.\n");
$charging = 1;
}
$ac = 1;
} else {
if ($charging != 0) {
logger("Battery discharging.\n");
@@ -141,20 +102,69 @@ while ( sleep(180) ) {
};
read(CHARGE, $buf, 3) or do {
logger("Unable to read $base/capacity\n");
logger("Unable to read $base/capacity, but file is in place\n");
next;
};
chomp($buf);
chomp($buf); # just in case
if (($ac == 0) and ($buf < 10)) {
if ($buf < $MIN_CHARGE) {
logger("Battery charge is less than 10%, hibernating\n");
`dbus-send --system --print-reply --dest="org.freedesktop.UPower" /org/freedesktop/UPower org.freedesktop.UPower.Hibernate`;
} else {
logger("Charge is $buf%\n");
if ($buf < ($MIN_CHARGE + 5)) {
`notify-send --urgency=critical --expire-time=10000 --icon=battery-caution "Low battery charge: $buf%"`;
}
if (($ac == 1) and ($buf > 100)) {
system ('notify-send', '-u', 'normal', '-t', '3000', 'Battery overcharging');
if ( ($charging == 1) and ( $buf > 100) ) {
`notify-send --urgency=normal --expire-time=3000 "Battery overcharging"`;
}
logger("Charge is $buf%\n");
}
}
sub logger ($) {
if ($debug != 0) {
my $msg = shift;
$msg = localtime() . ' ' . $msg;
syswrite STDOUT, $msg;
}
}
sub i3wmstate {
my $flag = 0;
opendir(P, '/proc') || die 'no /proc found!';
while (readdir(P)) {
my $pid = $_;
next unless(defined($pid));
next if ($pid eq '');
if (-d "/proc/$pid") {
# dir UID == APCID.pl process user owner
if ((stat("/proc/$pid"))[4] == int(getpwnam($ENV{'LOGNAME'}))) {
next unless(-r "/proc/$pid/cmdline");
open(CMDLINE, "/proc/$pid/cmdline") || die "unable to open /proc/$pid/cmdline";
my $cl = <CMDLINE>;
close(CMDLINE);
if(defined($cl)) {
if ((substr($cl, 0, 2) eq 'i3') and (length($cl) <= 4)) {
$flag = 1;
undef $cl;
undef $pid;
last;
}
}
undef $cl;
}
}
undef $pid;
}
return $flag;
}