601 lines
14 KiB
Perl
601 lines
14 KiB
Perl
#!/usr/bin/perl
|
|
|
|
# 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, $0, @ARGV );
|
|
exit 0; # we actually never get here
|
|
}
|
|
}
|
|
|
|
use 5.018;
|
|
use strict;
|
|
use warnings;
|
|
use utf8;
|
|
use open qw (:std :utf8);
|
|
use Fcntl qw (:seek);
|
|
use AnyEvent;
|
|
use AnyEvent::I3;
|
|
use JSON::XS;
|
|
use Net::DBus;
|
|
use Encode;
|
|
use IO::Socket qw (AF_INET SOCK_STREAM SHUT_WR);
|
|
|
|
sub add_events ();
|
|
sub spawn (@);
|
|
sub find_caps_led ();
|
|
sub to_hours ($);
|
|
sub readconf ();
|
|
sub active_win_borders ();
|
|
|
|
my $CONF = readconf ();
|
|
my $i3 = i3 ();
|
|
my $done = AnyEvent->condvar;
|
|
$i3->connect->recv or die 'Unable to connect to i3';
|
|
|
|
# event pool
|
|
my @EP;
|
|
|
|
# reload config and re-apply it on SIGHUP
|
|
$SIG{HUP} = sub {
|
|
$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');
|
|
|
|
# File handler pool
|
|
my $LAHANDLE;
|
|
my $MEMINFOHANDLE;
|
|
my $CPUTEMPHANDLE;
|
|
my $CAPSHANDLE;
|
|
|
|
# everything for text labels on i3bar
|
|
my $wallclock = '';
|
|
my $la = '';
|
|
my $meminfo = '';
|
|
my $cputemp = '';
|
|
my $caps_state = '';
|
|
my $charge = '';
|
|
my $tcp_check = 0;
|
|
my $file_check = 0;
|
|
my $file_check_mtime = 0;
|
|
my $output_string;
|
|
my $old_output_string = '';
|
|
my $STDIN_FIRST_LINE_DROPPED = 0;
|
|
|
|
my $CAPS_LED_PATH = find_caps_led ();
|
|
|
|
# for fetching battery stats via dee-boos :)
|
|
my $properties;
|
|
|
|
# opened windows info storage ref
|
|
my $win;
|
|
|
|
# capture click events and do not override sigstop and sigcont numbers
|
|
syswrite STDOUT, << 'EOJSON';
|
|
{"version": 1, "click_events": true}
|
|
[ [],
|
|
EOJSON
|
|
|
|
# i3 events should persist over config relads
|
|
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 ();
|
|
}
|
|
};
|
|
|
|
$i3_subscription->{_error} = sub {
|
|
my ($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
|
|
$done->recv ();
|
|
exit 0;
|
|
|
|
|
|
sub add_events () {
|
|
# prep dee-boos connection
|
|
if ($CONF->{battery}) {
|
|
unless (defined $properties) {
|
|
# we should not install more than one connection to dbus,
|
|
# but we can not break connection gracefully (via Net::DBus) once we make one
|
|
my $bus = Net::DBus->system;
|
|
my $upower = $bus->get_service ('org.freedesktop.UPower');
|
|
$properties = $upower->get_object ('/org/freedesktop/UPower/devices/battery_BAT0', 'org.freedesktop.DBus.Properties');
|
|
}
|
|
}
|
|
|
|
# Register callbacks/event handlers
|
|
|
|
# Actually print messages there
|
|
push @EP, AnyEvent->timer (
|
|
after => 1, # sleep 1 second
|
|
interval => 0.3, # then invoke every 1 second
|
|
cb => sub { # the callback to invoke
|
|
my $OUTPUT;
|
|
|
|
if ($CONF->{app_buttons}) {
|
|
@{$OUTPUT} = @{$CONF->{apps}};
|
|
}
|
|
|
|
if ($CONF->{capslock}) {
|
|
unless ($caps_state) {
|
|
push @{$OUTPUT}, { color => '#3e78fd', background => '#edeceb', border => '#edeceb', full_text => 'caps', markup => 'pango'};
|
|
} else {
|
|
push @{$OUTPUT}, { background => '#3e78fd', color => '#edeceb', border => '#edeceb', full_text => 'caps', markup => 'pango'};
|
|
}
|
|
}
|
|
|
|
if ($CONF->{cpu_temp}) {
|
|
push @{$OUTPUT}, { color => '#3e78fd', full_text => $cputemp };
|
|
}
|
|
|
|
if ($CONF->{mem}) {
|
|
push @{$OUTPUT}, { color => '#3e78fd', full_text => $meminfo };
|
|
}
|
|
|
|
if ($CONF->{la}) {
|
|
push @{$OUTPUT}, { color => '#3e78fd', full_text => "LA: $la" };
|
|
}
|
|
|
|
my $vpn_str = 'VPN:';
|
|
|
|
if ($CONF->{vpn}->{enabled}) {
|
|
if ($file_check) {
|
|
$vpn_str .= '⍋';
|
|
} else {
|
|
$vpn_str .= '⍒';
|
|
}
|
|
}
|
|
|
|
if ($CONF->{vpn}->{tcp_check}->{enabled}) {
|
|
if ($CONF->{vpn}->{enabled}) {
|
|
$vpn_str .= ':';
|
|
}
|
|
|
|
if ($tcp_check) {
|
|
$vpn_str .= '✔';
|
|
} else {
|
|
$vpn_str .= '✘';
|
|
}
|
|
}
|
|
|
|
if ($CONF->{vpn}->{tcp_check}->{enabled} || $CONF->{vpn}->{enabled}) {
|
|
push @{$OUTPUT}, { color => '#3e78fd', full_text => $vpn_str };
|
|
}
|
|
|
|
if ($CONF->{battery}) {
|
|
push @{$OUTPUT}, { color => '#3e78fd', full_text => $charge };
|
|
}
|
|
|
|
if ($CONF->{clock}) {
|
|
push @{$OUTPUT}, { color => '#000000', full_text => "<big>$wallclock</big>", markup => 'pango'};
|
|
}
|
|
|
|
$output_string = eval { encode_json ($OUTPUT) };
|
|
|
|
if (defined $output_string) {
|
|
if ($output_string ne $old_output_string) {
|
|
syswrite STDOUT, decode ('UTF-8', $output_string) . ",\n";
|
|
$old_output_string = $output_string;
|
|
}
|
|
} else {
|
|
warn $@;
|
|
}
|
|
|
|
@{$OUTPUT} = -1;
|
|
}
|
|
);
|
|
|
|
|
|
# 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 $j) {
|
|
foreach (@{$CONF->{apps}}) {
|
|
unless (defined $_->{name}) {
|
|
next;
|
|
}
|
|
|
|
unless (defined $j->{name}) {
|
|
next;
|
|
}
|
|
|
|
if ($j->{name} eq $_->{name}) {
|
|
spawn ($_->{cmd});
|
|
last;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
);
|
|
|
|
# poll caps lock status, on one of my laptop there is no led for this :(
|
|
if ($CONF->{capslock}) {
|
|
push @EP, AnyEvent->timer (
|
|
after => 0, # first invoke ASAP
|
|
interval => 0.3, # then invoke every 0.3 seconds
|
|
cb => sub { # the callback to invoke
|
|
if (defined $CAPS_LED_PATH) {
|
|
if (defined $CAPSHANDLE) {
|
|
if (tell ($CAPSHANDLE) == -1) {
|
|
unless (open $CAPSHANDLE, '<', $CAPS_LED_PATH) {
|
|
$CAPS_LED_PATH = undef;
|
|
$caps_state = 2;
|
|
}
|
|
}
|
|
} else {
|
|
unless (open $CAPSHANDLE, '<', $CAPS_LED_PATH) {
|
|
$CAPS_LED_PATH = undef;
|
|
$caps_state = 2
|
|
}
|
|
}
|
|
} else {
|
|
$caps_state = 2;
|
|
}
|
|
|
|
if ($caps_state ne '2') {
|
|
$caps_state = eval { readline ($CAPSHANDLE) };
|
|
seek $CAPSHANDLE, SEEK_SET, 0;
|
|
chomp $caps_state;
|
|
}
|
|
}
|
|
);
|
|
}
|
|
|
|
# poll clock by timer
|
|
if ($CONF->{clock}) {
|
|
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;
|
|
$wallclock = sprintf ' %s, %s %s %s %02s:%02s ', $week_day[$wday], $mday, $month[$mon], $year, $hour, $min;
|
|
}
|
|
);
|
|
}
|
|
|
|
# poll battery status via dbus
|
|
# but it is possible to fetch this status via upower directly
|
|
if ($CONF->{battery}) {
|
|
push @EP, AnyEvent->timer (
|
|
after => 0, # first invoke ASAP
|
|
interval => 10, # then invoke every 10 seconds
|
|
cb => sub { # the callback to invoke
|
|
my $capacity = $properties->Get ('org.freedesktop.UPower.Device', 'Percentage');
|
|
my $state = $properties->Get ('org.freedesktop.UPower.Device', 'State');
|
|
my $time = '?';
|
|
|
|
if ($state == 2) {
|
|
# discharging
|
|
$time = $properties->Get ('org.freedesktop.UPower.Device', 'TimeToEmpty');
|
|
# time in seconds, let's translate it to hours:minutes
|
|
$state = '▼';
|
|
} elsif ($state == 1) {
|
|
# charging
|
|
$time = $properties->Get ('org.freedesktop.UPower.Device', 'TimeToFull');
|
|
$state = '▲';
|
|
} else {
|
|
# already charged
|
|
$time = 0;
|
|
$state = '•';
|
|
}
|
|
|
|
if ($time ne '?') {
|
|
$time = to_hours ($time);
|
|
}
|
|
|
|
$charge = sprintf '⚡ %s%% %s %s', $capacity, $state, $time;
|
|
}
|
|
);
|
|
}
|
|
|
|
# put all fast accessable stats in one callback
|
|
push @EP, AnyEvent->timer (
|
|
after => 0, # first invoke ASAP
|
|
interval => 3, # then invoke every 3 second
|
|
cb => sub { # the callback to invoke
|
|
|
|
# Fetch Load Average
|
|
if ($CONF->{la}) {
|
|
if (defined $LAHANDLE) {
|
|
if (tell ($LAHANDLE) == -1) {
|
|
open $LAHANDLE, '<', '/proc/loadavg';
|
|
}
|
|
} else {
|
|
open $LAHANDLE, '<', '/proc/loadavg';
|
|
}
|
|
|
|
$la = readline $LAHANDLE;
|
|
seek $LAHANDLE, SEEK_SET, 0;
|
|
$la = (split / /ms, $la, 2)[0];
|
|
}
|
|
|
|
# populate memory statistics
|
|
if ($CONF->{mem}) {
|
|
if (defined $MEMINFOHANDLE) {
|
|
if (tell ($MEMINFOHANDLE) == -1) {
|
|
open $MEMINFOHANDLE, '<', '/proc/meminfo';
|
|
}
|
|
} else {
|
|
open $MEMINFOHANDLE, '<', '/proc/meminfo';
|
|
}
|
|
|
|
my @mem;
|
|
|
|
while ( ! eof ($MEMINFOHANDLE) ) {
|
|
push @mem, readline ($MEMINFOHANDLE);
|
|
}
|
|
|
|
seek $MEMINFOHANDLE, SEEK_SET, 0;
|
|
@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));
|
|
|
|
$meminfo = sprintf (
|
|
'M:%d%% SHM:%dM SW:%dM',
|
|
$memused,
|
|
int ($shmem / 1024),
|
|
int (($swaptotal - $swapfree) / 1024)
|
|
);
|
|
}
|
|
|
|
# populate cpu temperature info
|
|
if ($CONF->{cpu_temp}) {
|
|
my $hwmon = 1;
|
|
|
|
if (defined $CPUTEMPHANDLE) {
|
|
if (tell $CPUTEMPHANDLE == -1) {
|
|
if (open $CPUTEMPHANDLE, '<', '/sys/class/hwmon/hwmon0/temp1_input') {
|
|
$hwmon = 1;
|
|
} else {
|
|
$hwmon = 0;
|
|
}
|
|
}
|
|
} else {
|
|
unless (open $CPUTEMPHANDLE, '<', '/sys/class/hwmon/hwmon0/temp1_input') {
|
|
$hwmon = 0;
|
|
};
|
|
}
|
|
|
|
if ($hwmon) {
|
|
$cputemp = readline $CPUTEMPHANDLE;
|
|
seek $CPUTEMPHANDLE, SEEK_SET, 0;
|
|
chomp $cputemp;
|
|
$cputemp = int $cputemp;
|
|
|
|
if ($cputemp > 1000) {
|
|
$cputemp = int ($cputemp / 1000);
|
|
}
|
|
|
|
$cputemp = sprintf '%s°', $cputemp;
|
|
}
|
|
}
|
|
},
|
|
);
|
|
|
|
# Try to tcp connect to server
|
|
if ($CONF->{vpn}->{tcp_check}->{enabled}) {
|
|
push @EP, AnyEvent->timer (
|
|
after => 0, # first invoke ASAP
|
|
interval => 5, # then invoke every 5 seconds
|
|
cb => sub { # the callback to invoke
|
|
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 ();
|
|
$tcp_check = 1;
|
|
} else {
|
|
$tcp_check = 0;
|
|
}
|
|
}
|
|
);
|
|
}
|
|
|
|
# check file mtime
|
|
if ($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}) [8];
|
|
|
|
if (defined $mtime) {
|
|
if (($mtime - $file_check_mtime) < $CONF->{vpn}->{mtime_threshold}) {
|
|
$file_check = 1;
|
|
} else {
|
|
$file_check = 0;
|
|
}
|
|
|
|
$file_check_mtime = $mtime;
|
|
} else {
|
|
$mtime = 0;
|
|
$file_check = 0;
|
|
}
|
|
}
|
|
);
|
|
}
|
|
}
|
|
|
|
sub spawn (@) {
|
|
my @args = @_;
|
|
my $pid = fork ();
|
|
|
|
if ($pid) {
|
|
# Parent, work done, return
|
|
return;
|
|
} elsif ($pid == 0) {
|
|
# it seems that at least vscode creashes if we close stdio handles
|
|
open STDOUT, '>', '/dev/null';
|
|
open STDERR, '>', '/dev/null';
|
|
open STDIN, '<', '/dev/null';
|
|
$pid = fork ();
|
|
|
|
if ($pid) { # Parent
|
|
# in this place parent quits
|
|
exit 0;
|
|
} elsif ($pid == 0) { # Child
|
|
my $prg = shift @args;
|
|
# weird situation, silently quit here :)
|
|
exit 0 unless (defined $prg);
|
|
|
|
if (@args > 0) {
|
|
exec $prg, @args;
|
|
} else {
|
|
exec $prg;
|
|
}
|
|
} else { # Unable to fork()
|
|
syswrite STDERR, "[{\"full_text\":\"ERROR: Could not fork new process: $!\",\"color\":\"#ff0000\"}],\n";
|
|
}
|
|
}
|
|
|
|
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 $file = "$ENV{HOME}/.i3/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};
|
|
}
|
|
}
|
|
}
|