0
Files
i3status-ae/i3status-anyevent

950 lines
24 KiB
Perl

#!/usr/bin/perl
use strict;
use warnings;
# we need to disable hash shuffling in order to make as less prints to stdout as possible
BEGIN {
unless (defined $ENV{PERL_PERTURB_KEYS}) {
$ENV{PERL_PERTURB_KEYS} = 0;
exec ( $^X, $0, @ARGV );
exit 0; # we actually never get here
}
}
use 5.018;
use strict;
use warnings;
use utf8;
use open qw (:std :utf8);
use Fcntl qw (:seek);
use AnyEvent;
use AnyEvent::I3;
use JSON::XS;
use Encode;
use IO::Socket qw (AF_INET SOCK_STREAM SHUT_WR);
use POSIX qw (setsid);
local $| = 1;
sub add_events ();
sub spawn (@);
sub find_caps_led ();
sub to_hours ($);
sub readconf ();
sub active_win_borders ();
my $CONF = readconf ();
# load AnyEvent::Timer::Cron only if cron enabled in config
if ($CONF->{'cron'}->{enabled}) {
require AnyEvent::Timer::Cron;
}
my $i3 = i3 ();
my $done = AnyEvent->condvar;
$i3->connect->recv or die 'Unable to connect to i3';
# Local Time Counter
my $TC = time();
# event pool
my @EP;
# STDOUT spew flag variable
my $UPDATE = 0;
# output json "object" that used for STDOUT json generation
my $O = undef;
# reload config and re-apply it on SIGHUP
local $SIG{HUP} = sub {
$O = undef;
$CONF = readconf ();
active_win_borders ();
$#EP = -1;
add_events ();
};
my @month = ('Янв', 'Фев', 'Мар', 'Апр', 'Май', 'Июн', 'Июл', 'Авг', 'Сен', 'Окт', 'Ноя', 'Дек');
my @week_day = ('Вс', 'Пн', 'Вт', 'Ср', 'Чт', 'Пт', 'Сб');
# everything for text labels on i3bar
my $file_check_mtime = 0;
my $STDIN_FIRST_LINE_DROPPED = 0;
# hp, kernel 5.4.x
my $BATTERY_CHARGE_NOW_FILE = sprintf '%s/charge_now', $CONF->{battery}->{sys_dir};
unless (-f $BATTERY_CHARGE_NOW_FILE) {
# lenovo, kernel 4.4.x
$BATTERY_CHARGE_NOW_FILE = sprintf '%s/energy_now', $CONF->{battery}->{sys_dir};
}
# hp, kernel 5.4.x
my $BATTERY_CHARGE_FULL_FILE = sprintf '%s/charge_full', $CONF->{battery}->{sys_dir};
unless (-f $BATTERY_CHARGE_FULL_FILE) {
# lenovo, kernel 4.4.x
$BATTERY_CHARGE_FULL_FILE = sprintf '%s/energy_full', $CONF->{battery}->{sys_dir};
}
my $CAPS_LED_PATH = find_caps_led ();
my $CAPS_LED_SKIPS = 0;
my $CAPS_LED_SKIPS_MAX = 180;
# opened windows info storage ref
my $win;
# capture click events and do not override sigstop and sigcont numbers
print {*STDOUT} << 'EOJSON';
{"version": 1, "click_events": true}
[ [],
EOJSON
# i3 events should persist over config reloads
my $i3_subscription->{window} = sub {
my $w = shift;
if (defined $w->{change}) {
if ($w->{change} eq 'new' ) {
if (defined $w->{container}->{window_properties}->{instance}) {
if (defined $win->{instance}->{$w->{container}->{window_properties}->{instance}}) {
$win->{instance}->{$w->{container}->{window_properties}->{instance}}++;
} else {
$win->{instance}->{$w->{container}->{window_properties}->{instance}} = 1;
}
}
} elsif ($w->{change} eq 'close') {
if (defined $w->{container}->{window_properties}->{instance}) {
if (defined $win->{instance}->{$w->{container}->{window_properties}->{instance}}) {
if ($win->{instance}->{$w->{container}->{window_properties}->{instance}} > 1) {
$win->{instance}->{$w->{container}->{window_properties}->{instance}} --;
} else {
delete $win->{instance}->{$w->{container}->{window_properties}->{instance}};
}
}
}
}
active_win_borders ();
$UPDATE = 1;
}
};
$i3_subscription->{_error} = sub {
my ($msg) = @_;
die "Connection to i3 closed: $msg";
};
$i3->subscribe ($i3_subscription)->recv->{success} || die 'Unable to subscribe to i3 events';
# now we can add other events
add_events ();
# and start eventloop
$done->recv ();
exit 0;
sub add_events () {
# Create stdout json "object" stub from static objects
if ($CONF->{app_buttons}) {
@{$O->{apps}} = @{$CONF->{apps}};
}
# Register callbacks/event handlers
push @EP, AnyEvent->timer (
after => 1,
interval => 120,
cb => sub {
AnyEvent->now_update;
},
);
# Actually print messages there
push @EP, AnyEvent->timer (
after => 1, # sleep 1 second
interval => 0.3, # then invoke every ~1/3 second
cb => sub {
# Print JSON only if there are updates ready
if ($UPDATE) {
my $jsonobj;
if ($CONF->{app_buttons}) {
@{$jsonobj} = @{$O->{apps}};
}
if ($CONF->{capslock}->{enabled}) {
push @{$jsonobj}, $O->{capslock};
}
if ($CONF->{cpu_temp}->{enabled}) {
push @{$jsonobj}, $O->{cputemp};
}
if ($CONF->{mem}) {
push @{$jsonobj}, $O->{mem};
}
if ($CONF->{la}) {
push @{$jsonobj}, $O->{la};
}
if ($CONF->{vpn}->{enabled}) {
push @{$jsonobj}, $O->{vpn};
}
if ($CONF->{'net-if'}->{enabled}) {
push @{$jsonobj}, $O->{interfaces};
}
if ($CONF->{battery}->{enabled}) {
push @{$jsonobj}, $O->{battery};
}
if ($CONF->{'simple-volume-pa'}) {
push @{$jsonobj}, $O->{'simple-volume-pa'};
}
if ($CONF->{clock}->{enabled}) {
push @{$jsonobj}, $O->{wallclock};
}
my $output_string = eval { encode_json $jsonobj };
if (defined $output_string) {
print {*STDOUT} decode ('UTF-8', $output_string) . ",\n";
} else {
warn $@;
}
$UPDATE = 0;
}
}
);
# read STDIN
push @EP, AnyEvent->io (
fh => \*STDIN,
poll => 'r',
cb => sub {
my $msg = <>;
unless ($STDIN_FIRST_LINE_DROPPED) {
$msg = <>;
$STDIN_FIRST_LINE_DROPPED = 1;
}
if ($msg) {
# drop leading ',' if present
if (substr ($msg, 0, 1) eq ',') {
$msg = substr $msg, 1;
}
my $j = eval { decode_json $msg };
if (defined $j) {
# left button click, without shift, ctrl, alt, etc
if (($j->{button} == 1) && ($#{$j->{modifiers}} < 0)) {
foreach (@{$CONF->{apps}}) {
unless (defined $_->{name}) {
next;
}
unless (defined $j->{name}) {
next;
}
if ($j->{name} eq $_->{name}) {
spawn ($_->{cmd});
last;
}
}
}
if (($j->{name} eq 'wallclock') && ($CONF->{clock}->{enabled})) {
if ($CONF->{clock}->{left_click}->{enabled}) {
if (($j->{button} == 1) && ($#{$j->{modifiers}} < 0)) {
spawn ($CONF->{clock}->{left_click}->{cmd});
}
} elsif ($CONF->{clock}->{right_click}->{enabled}) {
if (($j->{button} == 2) && ($#{$j->{modifiers}} < 0)) {
spawn ($CONF->{clock}->{right_click}->{cmd});
}
}
}
}
}
}
);
# poll caps lock status, on one of my laptop there is no led for this :(
if ($CONF->{capslock}->{enabled}) {
push @EP, AnyEvent->timer (
after => 0, # first invoke ASAP
interval => 0.3, # then invoke every 0.3 seconds
cb => sub { # the callback to invoke
my $caps_state = 0;
my $CAPSHANDLE;
my $xsetflag = 0;
if (defined $CAPS_LED_PATH) {
unless (open $CAPSHANDLE, '<', $CAPS_LED_PATH) {
$CAPS_LED_PATH = undef;
$caps_state = 2
}
} else {
# we can use "$ xset q | grep Caps" as fallback, but it is notably more expensive check
my $xset = `xset q`;
$xsetflag = 1;
if ($?) {
# some kind of error, so we assume that we cannot update caps lock status
$caps_state = 2;
} else {
$xset =~ /Caps Lock\:\s+(o[n|f]f?)\s+/;
if ($1 eq 'off') {
$caps_state = 0;
} elsif ($1 eq 'on') {
$caps_state = 1;
} else {
$caps_state = 2;
}
}
if ($CAPS_LED_SKIPS == $CAPS_LED_SKIPS_MAX) {
$CAPS_LED_SKIPS = 0;
$CAPS_LED_PATH = find_caps_led ();
} else {
$CAPS_LED_SKIPS++;
}
}
if ($caps_state ne '2') {
unless ($xsetflag) {
$caps_state = readline $CAPSHANDLE;
close $CAPSHANDLE;
chomp $caps_state;
}
if (! defined $O->{capslock}->{state}) {
$O->{capslock}->{border} = $CONF->{capslock}->{background};
$O->{capslock}->{full_text} = 'caps';
$O->{capslock}->{markup} = 'pango';
$O->{capslock}->{state} = $caps_state;
if ($caps_state) {
$O->{capslock}->{background} = $CONF->{capslock}->{color};
$O->{capslock}->{color} = $CONF->{capslock}->{background};
} else {
$O->{capslock}->{background} = $CONF->{capslock}->{background};
$O->{capslock}->{color} = $CONF->{capslock}->{color};
}
$UPDATE = 1;
} elsif ($O->{capslock}->{state} ne $caps_state) {
$O->{capslock}->{state} = $caps_state;
if ($caps_state) {
$O->{capslock}->{background} = $CONF->{capslock}->{color};
$O->{capslock}->{color} = $CONF->{capslock}->{background};
} else {
$O->{capslock}->{background} = $CONF->{capslock}->{background};
$O->{capslock}->{color} = $CONF->{capslock}->{color};
}
$UPDATE = 1;
}
}
}
);
}
# poll clock by timer
if ($CONF->{clock}->{enabled}) {
push @EP, AnyEvent->timer (
after => 0, # first invoke ASAP
interval => 1, # then invoke every 1 second
cb => sub { # the callback to invoke
# Fetch time for clock
my ($sec, $min, $hour, $mday, $mon, $year, $wday) = (localtime)[0,1,2,3,4,5,6];
$year = $year + 1900;
my $wallclock = sprintf '<big> %s, %s %s %s %02s:%02s </big>', $week_day[$wday], $mday, $month[$mon], $year, $hour, $min;
if (! defined $O->{wallclock}->{'full_text'}) {
$O->{wallclock}->{'full_text'} = $wallclock;
$O->{wallclock}->{'name'} = 'wallclock';
$O->{wallclock}->{'color'} = '#666666';
$O->{wallclock}->{'markup'} = 'pango';
$UPDATE = 1;
} elsif ($O->{wallclock}->{'full_text'} ne $wallclock) {
$O->{wallclock}->{'full_text'} = $wallclock;
$UPDATE = 1;
}
}
);
}
# poll battery status via upower or /sys
if ($CONF->{battery}->{enabled}) {
# borrow data from upower output
if ($CONF->{battery}->{driver} eq 'upower') {
push @EP, AnyEvent->timer (
after => 0, # first invoke ASAP
interval => 10, # then invoke every 10 seconds
cb => sub { # the callback to invoke
my @up;
my $str = `upower -i $CONF->{battery}->{upower_device}`;
if ($?) {
return;
}
@up = split /\n/, $str;
my $percentage;
my $time_to; # full or empty
my $state;
my $hours = 0;
my $minutes = 0;
while ($str = pop (@up)) {
if (substr ($str, 4, 10) eq 'percentage') {
$percentage = substr $str, 25, -1; # chop % symbol ath the end of the string
} elsif (substr ($str, 4, 5) eq 'state') {
if (substr ($str, 25, 11) eq 'discharging') {
$state = '▼';
} elsif (substr ($str, 25, 8) eq 'charging') {
$state = '▲';
} else {
$state = '•';
}
} elsif (substr ($str, 4, 13) eq 'time to empty') {
$time_to = substr $str, 25;
} elsif (substr ($str, 4, 12) eq 'time to full') {
$time_to = substr $str, 25;
}
}
unless (defined $percentage && defined $state) {
return;
}
my $color = '<span foreground="Blue">';
if ($percentage > 85) {
$color = '<span foreground="LimeGreen">';
} elsif ($percentage < 25 && $percentage > 15) {
$color = '<span foreground="Goldenrod">';
} elsif ($percentage <= 15 && $percentage > 11) {
$color = '<span foreground="DarkOrange">';
} elsif ($percentage <= 11) {
$color = '<span foreground="Red">';
}
if (defined $time_to) {
chomp $time_to;
if (substr ($time_to, -7) eq 'minutes') {
$minutes = substr $time_to, 0, -8;
$minutes =~ tr/\,/./;
$minutes = int $minutes;
} elsif (substr ($time_to, -5) eq 'hours') {
$hours = substr $time_to, 0, -6;
$hours =~ tr/\,/./;
$minutes = int (60 * ($hours - int ($hours)));
}
$time_to = sprintf '%02d:%02d', $hours, $minutes;
} else {
$time_to = '00:00';
}
my $charge = sprintf '<b><big><span foreground="Goldenrod">⚡</span></big></b> %s%s%%</span> %s %s', $color, $percentage, $state, $time_to;
if (! defined $O->{battery}->{'full_text'}) {
$O->{battery}->{'full_text'} = $charge;
$O->{battery}->{'color'} = '#3e78fd';
$O->{battery}->{'markup'} = 'pango';
$UPDATE = 1;
} elsif ($O->{battery}->{'full_text'} ne $charge) {
$O->{battery}->{'full_text'} = $charge;
$UPDATE = 1;
}
}
);
} else {
# fallback borrow data from /sys
push @EP, AnyEvent->timer (
after => 0, # first invoke ASAP
interval => 10, # then invoke every 10 seconds
cb => sub { # the callback to invoke
my $current_charge;
my $charge_max;
my $state;
my ($CH, $CCM, $STH);
if (!defined $O->{battery}->{'full_text'}) {
$O->{battery}->{'full_text'} = '<big>⚡</big> ??% •';
$O->{battery}->{'color'} = '#3e78fd';
$O->{battery}->{'markup'} = 'pango';
}
unless (open $CH, '<', $BATTERY_CHARGE_NOW_FILE) {
if ($O->{battery}->{'full_text'} ne '<big>⚡</big> ??% •') {
$O->{battery}->{'full_text'} = '<big>⚡</big> ??% •';
$UPDATE = 1;
}
return;
}
$current_charge = <$CH>;
chomp $current_charge;
close $CH;
unless (open $CCM, '<', $BATTERY_CHARGE_FULL_FILE) {
if ($O->{battery}->{'full_text'} ne '<big>⚡</big> ??% •') {
$O->{battery}->{'full_text'} = '<big>⚡</big> ??% •';
$UPDATE = 1;
}
return;
}
$charge_max = <$CCM>;
chomp $charge_max;
close $CCM;
unless (open $STH, '<', sprintf '%s/status', $CONF->{battery}->{sys_dir}) {
if ($O->{battery}->{'full_text'} ne '<big>⚡</big> ??% •') {
$O->{battery}->{'full_text'} = '<big>⚡</big> ??% •';
$UPDATE = 1;
}
return;
}
$state = <$STH>;
chomp $state;
close $STH;
if ($state eq 'Charging') {
$state = '▲';
} elsif ($state eq 'Discharging') {
$state = '▼';
} else {
$state = '•';
}
my $capacity = int (100 * ($current_charge / $charge_max));
my $color = '<span foreground="Blue">';
if ($capacity > 85) {
$color = '<span foreground="LimeGreen">';
} elsif ($capacity < 25 && $capacity > 15) {
$color = '<span foreground="Goldenrod">';
} elsif ($capacity <= 15 && $capacity > 11) {
$color = '<span foreground="DarkOrange">';
} elsif ($capacity <= 11) {
$color = '<span foreground="Red">';
}
my $charge = sprintf '<b><big><span foreground="Goldenrod">⚡</span></big></b> %s%s%%</span> %s', $color, $capacity, $state;
if ($O->{battery}->{'full_text'} ne $charge) {
$O->{battery}->{'full_text'} = $charge;
$UPDATE = 1;
}
}
);
}
}
# put all fast accessable stats in one callback
push @EP, AnyEvent->timer (
after => 0, # first invoke ASAP
interval => 3, # then invoke every 3 second
cb => sub { # the callback to invoke
# Fetch Load Average
if ($CONF->{la}) {
open my $LAHANDLE, '<', '/proc/loadavg'; ## no critic (InputOutput::RequireCheckedOpen)
my $la = readline $LAHANDLE;
close $LAHANDLE;
$la = sprintf 'LA: %s', (split / /ms, $la, 2)[0];
if (! defined $O->{la}->{'full_text'}) {
$O->{la}->{'full_text'} = $la;
$O->{la}->{'color'} = '#3e78fd';
$UPDATE = 1;
} elsif ($O->{la}->{'full_text'} ne $la) {
$O->{la}->{'full_text'} = $la;
$UPDATE = 1;
}
}
# populate memory statistics
if ($CONF->{mem}) {
open my $MEMINFOHANDLE, '<', '/proc/meminfo'; ## no critic (InputOutput::RequireCheckedOpen)
my @mem;
while ( ! eof ($MEMINFOHANDLE) ) {
push @mem, readline ($MEMINFOHANDLE);
}
close $MEMINFOHANDLE;
@mem = map { substr $_, 0, -4 } @mem;
my $memtotal = (split /\s+/xms, $mem[0])[1];
my $memavail = (split /\s+/xms, $mem[2])[1];
my $swaptotal = (split /\s+/xms, $mem[14])[1];
my $swapfree = (split /\s+/xms, $mem[15])[1];
my $shmem = (split /\s+/xms, $mem[20])[1];
my $memused = int (($memtotal - $memavail) / ($memtotal / 100));
my $mem = sprintf (
'M:%d%% SHM:%dM SW:%dM',
$memused,
int ($shmem / 1024),
int (($swaptotal - $swapfree) / 1024)
);
if (! defined $O->{mem}->{'full_text'}) {
$O->{mem}->{'full_text'} = $mem;
$O->{mem}->{'color'} = '#3e78fd';
$UPDATE = 1;
} elsif ($O->{mem}->{'full_text'} ne $mem) {
$O->{mem}->{'full_text'} = $mem;
$UPDATE = 1;
}
}
# populate cpu temperature info
if ($CONF->{cpu_temp}->{enabled}) {
my $hwmon = 1;
my $CPUTEMPHANDLE;
unless (open $CPUTEMPHANDLE, '<', $CONF->{cpu_temp}->{file}) {
$hwmon = 0;
};
if ($hwmon) {
my $cputemp = readline $CPUTEMPHANDLE;
close $CPUTEMPHANDLE;
chomp $cputemp;
$cputemp = int $cputemp;
if ($cputemp > 1000) {
$cputemp = int ($cputemp / 1000);
}
$cputemp = sprintf '%s°', $cputemp;
if (! defined $O->{cputemp}->{'full_text'}) {
$O->{cputemp}->{'full_text'} = $cputemp;
$O->{cputemp}->{'color'} = '#3e78fd';
$UPDATE = 1;
} elsif ($O->{cputemp}->{'full_text'} ne $cputemp) {
$O->{cputemp}->{'full_text'} = $cputemp;
$UPDATE = 1;
}
}
}
},
);
# check openvpn state-file mtime
if ($CONF->{vpn}->{enabled}) {
push @EP, AnyEvent->timer (
after => 0, # first invoke ASAP
interval => 3, # then invoke every 3 seconds
cb => sub { # the callback to invoke
my $mtime = (stat $CONF->{vpn}->{statusfile}) [9];
my $vpnstr = 'VPN:';
if (defined $mtime) {
if ((time () - $mtime) < $CONF->{vpn}->{mtime_threshold}) {
$vpnstr .= sprintf '<span foreground="%s">⍋</span>', $CONF->{vpn}->{up_color};
} else {
$vpnstr .= sprintf '<span foreground="%s">⍒</span>', $CONF->{vpn}->{down_color};
}
$file_check_mtime = $mtime;
} else {
$mtime = 0;
$vpnstr .= sprintf '<span foreground="%s">⍒</span>', $CONF->{vpn}->{up_down};
}
# Try to tcp connect to server in vpn network
if ($CONF->{vpn}->{tcp_check}->{enabled}) {
$vpnstr .= ':';
if (
my $sock = IO::Socket->new (
Domain => AF_INET,
proto => 'tcp',
PeerHost => $CONF->{vpn}->{tcp_check}->{host},
PeerPort => $CONF->{vpn}->{tcp_check}->{port},
Type => SOCK_STREAM,
Timeout => $CONF->{vpn}->{tcp_check}->{timeout}
)
) {
$sock->shutdown (SHUT_WR);
$sock->close ();
$vpnstr .= sprintf '<span foreground="%s">✔</span>', $CONF->{vpn}->{up_color};
} else {
$vpnstr .= sprintf '<span foreground="%s">✘</span>', $CONF->{vpn}->{down_color};
}
}
if (! defined $O->{vpn}->{'full_text'}) {
$O->{vpn}->{'markup'} = 'pango';
$O->{vpn}->{'full_text'} = $vpnstr;
$O->{vpn}->{'color'} = '#3e78fd';
$UPDATE = 1;
} elsif ($O->{vpn}->{'full_text'} ne $vpnstr) {
$O->{vpn}->{'full_text'} = $vpnstr;
$UPDATE = 1;
}
}
);
}
# poll pulseaudio volume on first sink in list
if ($CONF->{'simple-volume-pa'}->{enabled}) {
push @EP, AnyEvent->timer (
after => 0, # first invoke ASAP
interval => 1, # then invoke every 1 second
cb => sub { # the callback to invoke
my $pactl = `LC_ALL=C pactl list sinks`;
if ($?) {
# we've some error here, so quit further processing
return;
}
foreach my $str (split /\n/, $pactl) {
if ($str =~ /^\s+Volume\:\s+[a-z|A-Z\\-]+\:\s+\d+\s+\/\s+(\d+)% /xms ) {
my $volumestr = sprintf '<big>%s</big> %s%%', $CONF->{'simple-volume-pa'}->{symbol}, $1;
if (! defined $O->{'simple-volume-pa'}->{'full_text'}) {
$O->{'simple-volume-pa'}->{'full_text'} = $volumestr;
$O->{'simple-volume-pa'}->{'color'} = '#3e78fd';
$O->{'simple-volume-pa'}->{'markup'} = 'pango';
$UPDATE = 1;
} elsif ($O->{'simple-volume-pa'}->{'full_text'} ne $volumestr) {
$O->{'simple-volume-pa'}->{'full_text'} = $volumestr;
$UPDATE = 1;
}
last;
}
}
}
);
}
# poll operstate for given net ifs
if ($CONF->{'net-if'}->{enabled}) {
push @EP, AnyEvent->timer (
after => 0, # first invoke ASAP
interval => 1, # then invoke every 1 second
cb => sub { # the callback to invoke
my @ifstate;
my $interfaces;
foreach my $if (@{$CONF->{'net-if'}->{if}}) {
if (open my $STATEFH, '<', "$if->{dir}/operstate") {
my $state = <$STATEFH>;
close $STATEFH;
chomp $state;
if ($state eq 'up') {
push @ifstate, sprintf '%s:<span foreground="%s">▲</span>', $if->{name}, $CONF->{'net-if'}->{up_color};
} else {
push @ifstate, sprintf '%s:<span foreground="%s">▼</span>', $if->{name}, $CONF->{'net-if'}->{down_color};
}
}
}
if ($#ifstate >=0 ) {
$interfaces = join ' ', @ifstate;
}
if (! defined $O->{interfaces}->{full_text}) {
$O->{interfaces}->{color} = $CONF->{color};
$O->{interfaces}->{full_text} = $interfaces;
$O->{interfaces}->{markup} = 'pango';
$UPDATE = 1;
} elsif ($O->{interfaces}->{full_text} ne $interfaces) {
$O->{interfaces}->{full_text} = $interfaces;
$UPDATE = 1;
}
}
);
}
# run all cron jobs from config
if ($CONF->{'cron'}->{enabled}) {
foreach my $task (@{$CONF->{'cron'}->{tasks}}) {
push @EP, AnyEvent::Timer::Cron->new (
time_zone => $CONF->{cron}->{timezone},
cron => $task->{time},
cb => sub {
foreach my $cmd (@{$task->{cmd}}) {
`$cmd`;
}
}
)
}
# also we need workaround for timers after sleep or hibernate
push @EP, AnyEvent->timer (
after => 60, # first invoke after 1 minute
interval => 60, # then invoke every 1 second
cb => sub { # the callback to invoke
$TC = $TC + 60;
my $timeskew = $TC - time ();
if (($timeskew > 60) || ($timeskew < -60)) {
kill 'HUP', $$;
}
}
);
}
return;
}
sub spawn (@) {
my @args = @_;
my $pid = fork ();
if ($pid) {
# Parent, work done, return
return;
} elsif ($pid == 0) { # Child
setsid ();
# it seems that at least vscode creashes if we close stdio handles
open STDOUT, '>', '/dev/null'; ## no critic (InputOutput::RequireCheckedOpen)
open STDERR, '>', '/dev/null'; ## no critic (InputOutput::RequireCheckedOpen)
open STDIN, '<', '/dev/null'; ## no critic (InputOutput::RequireCheckedOpen)
$pid = fork ();
if ($pid) { # Parent
# in this place parent quits
exit 0;
} elsif ($pid == 0) { # Child
setsid ();
my $prg = shift @args;
# weird situation, silently quit here :)
exit 0 unless (defined $prg);
if (@args > 0) {
exec $prg, @args;
} else {
exec $prg;
}
}
# else - we just unable to fork, so silently ignore event
}
return;
}
sub find_caps_led () {
my $str;
opendir my $C, '/sys/class/input';
my $cnt = 0;
while (readdir $C) {
if (-f sprintf ('/sys/class/input/%s/input0::capslock/brightness', $_)) {
$str = sprintf '/sys/class/input/%s/input0::capslock/brightness', $_;
last;
}
if (-f sprintf ('/sys/class/input/%s/input%s::capslock/brightness', $_, $cnt)) {
$str = sprintf '/sys/class/input/%s/input%s::capslock/brightness', $_, $cnt;
last;
}
$cnt++;
}
closedir $C;
return $str;
}
sub to_hours ($) {
my $sec = shift;
my $hrs = int ($sec / (60 * 60));
my $min = int (($sec - ($hrs * 60 * 60)) / 60);
return sprintf '%02d:%02d', $hrs, $min;
}
sub readconf () {
my $i3dir = "$ENV{HOME}/.config/i3";
unless (-d $i3dir) {
$i3dir = "$ENV{HOME}/.i3";
}
my $file = "$i3dir/i3status-anyevent.json";
unless (-f $file) {
$file = "$i3dir/config.json";
}
my $FH;
unless (open $FH, '<', $file) {
die "Unable to open $file: $!\n";
}
my $len = (stat $file)[7];
my $data;
use bytes;
my $readlen = read $FH, $data, $len;
no bytes;
close $FH;
unless (defined $readlen) {
die "Unable to read $file: $!\n";
}
if ($readlen != $len) {
die "Unable to read $file: read $readlen, but stat() reports that file is $len bytes\n";
}
my $config = eval { JSON::XS->new->utf8->relaxed->decode ($data) };
unless ($config) {
die "Unable to decode $file: $@\n";
}
return $config;
}
sub active_win_borders () {
foreach my $app (@{$CONF->{apps}}) {
unless (defined $app->{border_inactive}) {
$app->{border_inactive} = $app->{border};
}
unless (defined $app->{border_active}) {
$app->{border_active} = $app->{border};
}
if (defined ($app->{instance}) && defined ($win->{instance}->{$app->{instance}})) {
$app->{border} = $app->{border_active};
} else {
$app->{border} = $app->{border_inactive};
}
}
return;
}