715 lines
16 KiB
Perl
715 lines
16 KiB
Perl
#!/usr/bin/perl
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# we need to disable hash shuffling in order to make as less prints to stdout as possible
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BEGIN {
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unless (defined $ENV{PERL_PERTURB_KEYS}) {
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$ENV{PERL_PERTURB_KEYS} = 0;
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exec ( $^X, $0, @ARGV );
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exit 0; # we actually never get here
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}
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}
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use 5.018;
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use strict;
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use warnings;
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use utf8;
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use open qw (:std :utf8);
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use Fcntl qw (:seek);
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use AnyEvent;
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use AnyEvent::I3;
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use JSON::XS;
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use Encode;
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use IO::Socket qw (AF_INET SOCK_STREAM SHUT_WR);
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use POSIX qw (setsid);
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local $| = 1;
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sub add_events ();
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sub spawn (@);
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sub find_caps_led ();
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sub to_hours ($);
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sub readconf ();
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sub active_win_borders ();
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my $CONF = readconf ();
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my $i3 = i3 ();
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my $done = AnyEvent->condvar;
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$i3->connect->recv or die 'Unable to connect to i3';
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# event pool
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my @EP;
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# reload config and re-apply it on SIGHUP
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$SIG{HUP} = sub {
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$CONF = readconf ();
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active_win_borders ();
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$#EP = -1;
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add_events ();
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};
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my @month = ('Янв', 'Фев', 'Мар', 'Апр', 'Май', 'Июн', 'Июл', 'Авг', 'Сен', 'Окт', 'Ноя', 'Дек');
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my @week_day = ('Вс', 'Пн', 'Вт', 'Ср', 'Чт', 'Пт', 'Сб');
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# File handler pool
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my $LAHANDLE;
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my $MEMINFOHANDLE;
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my $CPUTEMPHANDLE;
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my $CAPSHANDLE;
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# everything for text labels on i3bar
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my $wallclock = '';
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my $la = '';
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my $meminfo = '';
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my $cputemp = '';
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my $caps_state = '';
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my $charge = '';
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my $tcp_check = 0;
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my $file_check = 0;
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my $file_check_mtime = 0;
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my $output_string;
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my $old_output_string = '';
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my $STDIN_FIRST_LINE_DROPPED = 0;
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# hp, kernel 5.4.x
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my $BATTERY_CHARGE_NOW_FILE = sprintf '%s/charge_now', $CONF->{battery}->{sys_dir};
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unless (-f $BATTERY_CHARGE_NOW_FILE) {
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# lenovo, kernel 4.4.x
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$BATTERY_CHARGE_NOW_FILE = sprintf '%s/energy_now', $CONF->{battery}->{sys_dir};
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}
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# hp, kernel 5.4.x
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my $BATTERY_CHARGE_FULL_FILE = sprintf '%s/charge_full', $CONF->{battery}->{sys_dir};
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unless (-f $BATTERY_CHARGE_FULL_FILE) {
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# lenovo, kernel 4.4.x
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$BATTERY_CHARGE_FULL_FILE = sprintf '%s/energy_full', $CONF->{battery}->{sys_dir};
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}
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my $CAPS_LED_PATH = find_caps_led ();
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# opened windows info storage ref
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my $win;
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# capture click events and do not override sigstop and sigcont numbers
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print << 'EOJSON';
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{"version": 1, "click_events": true}
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[ [],
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EOJSON
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# i3 events should persist over config relads
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my $i3_subscription->{window} = sub {
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my $w = shift;
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if (defined $w->{change}) {
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if ($w->{change} eq 'new' ) {
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if (defined $w->{container}->{window_properties}->{instance}) {
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if (defined $win->{instance}->{$w->{container}->{window_properties}->{instance}}) {
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$win->{instance}->{$w->{container}->{window_properties}->{instance}}++;
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} else {
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$win->{instance}->{$w->{container}->{window_properties}->{instance}} = 1;
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}
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}
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} elsif ($w->{change} eq 'close') {
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if (defined $w->{container}->{window_properties}->{instance}) {
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if (defined $win->{instance}->{$w->{container}->{window_properties}->{instance}}) {
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if ($win->{instance}->{$w->{container}->{window_properties}->{instance}} > 1) {
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$win->{instance}->{$w->{container}->{window_properties}->{instance}} --;
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} else {
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delete $win->{instance}->{$w->{container}->{window_properties}->{instance}};
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}
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}
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}
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}
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active_win_borders ();
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}
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};
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$i3_subscription->{_error} = sub {
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my ($msg) = @_;
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die "Connection to i3 closed: $msg";
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};
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$i3->subscribe($i3_subscription)->recv->{success} || die 'Unable to subscribe to i3 events';
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# now we can add other events
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add_events ();
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# and start eventloop
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$done->recv ();
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exit 0;
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sub add_events () {
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# Register callbacks/event handlers
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# Actually print messages there
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push @EP, AnyEvent->timer (
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after => 1, # sleep 1 second
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interval => 0.3, # then invoke every 1 second
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cb => sub { # the callback to invoke
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my $OUTPUT;
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if ($CONF->{app_buttons}) {
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@{$OUTPUT} = @{$CONF->{apps}};
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}
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if ($CONF->{capslock}->{enabled}) {
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if ($caps_state) {
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push @{$OUTPUT}, {
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background => $CONF->{capslock}->{background},
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color => $CONF->{capslock}->{color},
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border => '#edeceb',
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full_text => 'caps',
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markup => 'pango'
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};
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} else {
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push @{$OUTPUT}, {
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color => $CONF->{capslock}->{background},
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background => $CONF->{capslock}->{color},
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border => '#edeceb',
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full_text => 'caps',
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markup => 'pango'
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};
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}
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}
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if ($CONF->{cpu_temp}->{enabled}) {
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push @{$OUTPUT}, { color => $CONF->{color}, full_text => $cputemp };
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}
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if ($CONF->{mem}) {
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push @{$OUTPUT}, { color => $CONF->{color}, full_text => $meminfo };
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}
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if ($CONF->{la}) {
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push @{$OUTPUT}, { color => $CONF->{color}, full_text => "LA: $la" };
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}
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my $vpn_str = 'VPN:';
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if ($CONF->{vpn}->{enabled}) {
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if ($file_check) {
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$vpn_str .= '⍋';
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} else {
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$vpn_str .= '⍒';
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}
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}
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if ($CONF->{vpn}->{tcp_check}->{enabled}) {
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if ($CONF->{vpn}->{enabled}) {
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$vpn_str .= ':';
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}
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if ($tcp_check) {
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$vpn_str .= '✔';
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} else {
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$vpn_str .= '✘';
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}
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}
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if ($CONF->{vpn}->{tcp_check}->{enabled} || $CONF->{vpn}->{enabled}) {
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push @{$OUTPUT}, { color => $CONF->{color}, full_text => $vpn_str };
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}
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if ($CONF->{battery}->{enabled}) {
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push @{$OUTPUT}, { color => $CONF->{color}, full_text => $charge };
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}
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if ($CONF->{clock}->{enabled}) {
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push @{$OUTPUT}, { color => $CONF->{clock}->{color}, full_text => "<big>$wallclock</big>", markup => 'pango'};
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}
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$output_string = eval { encode_json $OUTPUT };
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if (defined $output_string) {
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if ($output_string ne $old_output_string) {
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print decode ('UTF-8', $output_string) . ",\n";
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$old_output_string = $output_string;
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}
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} else {
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warn $@;
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}
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@{$OUTPUT} = -1;
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}
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);
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# read STDIN
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push @EP, AnyEvent->io (
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fh => \*STDIN,
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poll => 'r',
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cb => sub {
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my $msg = <>;
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unless ($STDIN_FIRST_LINE_DROPPED) {
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$msg = <>;
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$STDIN_FIRST_LINE_DROPPED = 1;
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}
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if ($msg) {
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# drop leading ',' if present
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if (substr ($msg, 0, 1) eq ',') {
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$msg = substr $msg, 1;
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}
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my $j = eval { decode_json $msg };
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if (defined $j) {
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# left button click, without shift, ctrl, alt, etc
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if (($j->{button} == 1) && ($#{$j->{modifiers}} < 0)){
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foreach (@{$CONF->{apps}}) {
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unless (defined $_->{name}) {
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next;
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}
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unless (defined $j->{name}) {
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next;
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}
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if ($j->{name} eq $_->{name}) {
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spawn ($_->{cmd});
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last;
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}
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}
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}
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}
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}
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}
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);
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# poll caps lock status, on one of my laptop there is no led for this :(
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if ($CONF->{capslock}->{enabled}) {
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push @EP, AnyEvent->timer (
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after => 0, # first invoke ASAP
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interval => 0.3, # then invoke every 0.3 seconds
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cb => sub { # the callback to invoke
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if (defined $CAPS_LED_PATH) {
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if (defined $CAPSHANDLE) {
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if (tell ($CAPSHANDLE) == -1) {
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unless (open $CAPSHANDLE, '<', $CAPS_LED_PATH) {
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$CAPS_LED_PATH = undef;
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$caps_state = 2;
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}
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}
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} else {
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unless (open $CAPSHANDLE, '<', $CAPS_LED_PATH) {
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$CAPS_LED_PATH = undef;
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$caps_state = 2
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}
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}
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} else {
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$caps_state = 2;
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}
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if ($caps_state ne '2') {
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$caps_state = eval { readline ($CAPSHANDLE) };
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seek $CAPSHANDLE, SEEK_SET, 0;
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chomp $caps_state;
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}
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}
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);
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}
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# poll clock by timer
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if ($CONF->{clock}->{enabled}) {
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push @EP, AnyEvent->timer (
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after => 0, # first invoke ASAP
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interval => 1, # then invoke every 1 second
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cb => sub { # the callback to invoke
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# Fetch time for clock
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my ($sec, $min, $hour, $mday, $mon, $year, $wday) = (localtime)[0,1,2,3,4,5,6];
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$year = $year + 1900;
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$wallclock = sprintf ' %s, %s %s %s %02s:%02s ', $week_day[$wday], $mday, $month[$mon], $year, $hour, $min;
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}
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);
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}
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# poll battery status via upower or /sys
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if ($CONF->{battery}->{enabled}) {
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# borrow data from upower output
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if ($CONF->{battery}->{driver} eq 'upower') {
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push @EP, AnyEvent->timer (
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after => 0, # first invoke ASAP
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interval => 10, # then invoke every 10 seconds
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cb => sub { # the callback to invoke
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my @up;
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my $str = `upower -i $CONF->{battery}->{upower_device}`;
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$charge = '⚡ ??% • 00:00';
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if ($?) {
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return;
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}
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@up = split /\n/, $str;
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my $percentage;
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my $time_to; # full or empty
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my $state;
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my $hours = 0;
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my $minutes = 0;
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while ($str = pop (@up)) {
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if (substr ($str, 4, 10) eq 'percentage') {
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$percentage = substr $str, 25;
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chomp $percentage;
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} elsif (substr ($str, 4, 5) eq 'state') {
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if (substr ($str, 25, 11) eq 'discharging') {
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$state = '▼';
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} elsif (substr ($str, 25, 8) eq 'charging') {
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$state = '▲';
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} else {
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$state = '•';
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}
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} elsif (substr ($str, 4, 13) eq 'time to empty') {
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$time_to = substr $str, 25;
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} elsif (substr ($str, 4, 12) eq 'time to full') {
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$time_to = substr $str, 25;
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}
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}
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unless (defined $percentage && defined $state) {
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return;
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}
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if (defined $time_to) {
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chomp $time_to;
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if (substr ($time_to, -7) eq 'minutes') {
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$minutes = substr $time_to, 0, -8;
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$minutes =~ tr/\,/./;
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$minutes = int $minutes;
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} elsif (substr ($time_to, -5) eq 'hours') {
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$hours = substr $time_to, 0, -6;
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$hours =~ tr/\,/./;
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$minutes = int (60 * ($hours - int ($hours)));
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}
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$time_to = sprintf '%02d:%02d', $hours, $minutes;
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} else {
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$time_to = '00:00';
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}
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$charge = sprintf '⚡ %s %s %s', $percentage, $state, $time_to;
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}
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);
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} else {
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# fallback borrow data from /sys
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push @EP, AnyEvent->timer (
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after => 0, # first invoke ASAP
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interval => 10, # then invoke every 10 seconds
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cb => sub { # the callback to invoke
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my $current_charge;
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my $charge_max;
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my $state;
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my ($CH, $CCM, $STH);
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unless (open $CH, '<', $BATTERY_CHARGE_NOW_FILE) {
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$charge = '⚡ ??% •';
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return;
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}
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$current_charge = <$CH>;
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chomp $current_charge;
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close $CH;
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unless (open $CCM, '<', $BATTERY_CHARGE_FULL_FILE) {
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$charge = '⚡ ??% •';
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return;
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}
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$charge_max = <$CCM>;
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chomp $charge_max;
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close $CCM;
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unless (open $STH, '<', sprintf '%s/status', $CONF->{battery}->{sys_dir}) {
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$charge = '⚡ ??% •';
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return;
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}
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$state = <$STH>;
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chomp $state;
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close $STH;
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if ($state eq 'Charging') {
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$state = '▲';
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} elsif ($state eq 'Discharging') {
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$state = '▼';
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} else {
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$state = '•';
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}
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my $capacity = int (100 * ($current_charge / $charge_max));
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$charge = sprintf '⚡ %s%% %s', $capacity, $state;
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}
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);
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}
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}
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# put all fast accessable stats in one callback
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push @EP, AnyEvent->timer (
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after => 0, # first invoke ASAP
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interval => 3, # then invoke every 3 second
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cb => sub { # the callback to invoke
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# Fetch Load Average
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if ($CONF->{la}) {
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if (defined $LAHANDLE) {
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if (tell ($LAHANDLE) == -1) {
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open $LAHANDLE, '<', '/proc/loadavg';
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}
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} else {
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open $LAHANDLE, '<', '/proc/loadavg';
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}
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$la = readline $LAHANDLE;
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seek $LAHANDLE, SEEK_SET, 0;
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$la = (split / /ms, $la, 2)[0];
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}
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# populate memory statistics
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if ($CONF->{mem}) {
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if (defined $MEMINFOHANDLE) {
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if (tell ($MEMINFOHANDLE) == -1) {
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open $MEMINFOHANDLE, '<', '/proc/meminfo';
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}
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} else {
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open $MEMINFOHANDLE, '<', '/proc/meminfo';
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}
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my @mem;
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while ( ! eof ($MEMINFOHANDLE) ) {
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push @mem, readline ($MEMINFOHANDLE);
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}
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seek $MEMINFOHANDLE, SEEK_SET, 0;
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@mem = map { substr $_, 0, -4 } @mem;
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my $memtotal = (split /\s+/xms, $mem[0])[1];
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my $memavail = (split /\s+/xms, $mem[2])[1];
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my $swaptotal = (split /\s+/xms, $mem[14])[1];
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my $swapfree = (split /\s+/xms, $mem[15])[1];
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my $shmem = (split /\s+/xms, $mem[20])[1];
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my $memused = int (($memtotal - $memavail) / ($memtotal / 100));
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$meminfo = sprintf (
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'M:%d%% SHM:%dM SW:%dM',
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$memused,
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int ($shmem / 1024),
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int (($swaptotal - $swapfree) / 1024)
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);
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}
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# populate cpu temperature info
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if ($CONF->{cpu_temp}->{enabled}) {
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my $hwmon = 1;
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if (defined $CPUTEMPHANDLE) {
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if (tell $CPUTEMPHANDLE == -1) {
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if (open $CPUTEMPHANDLE, '<', $CONF->{cpu_temp}->{file}) {
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$hwmon = 1;
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} else {
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$hwmon = 0;
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}
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}
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} else {
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unless (open $CPUTEMPHANDLE, '<', $CONF->{cpu_temp}->{file}) {
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$hwmon = 0;
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};
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}
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if ($hwmon) {
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$cputemp = readline $CPUTEMPHANDLE;
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seek $CPUTEMPHANDLE, SEEK_SET, 0;
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chomp $cputemp;
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$cputemp = int $cputemp;
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if ($cputemp > 1000) {
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$cputemp = int ($cputemp / 1000);
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|
}
|
|
|
|
$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;
|
|
}
|
|
}
|
|
);
|
|
}
|
|
|
|
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';
|
|
open STDERR, '>', '/dev/null';
|
|
open STDIN, '<', '/dev/null';
|
|
$pid = fork ();
|
|
|
|
if ($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 { # Unable to fork()
|
|
print 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/i3status-anyevent.json";
|
|
|
|
unless (-f $file) {
|
|
$file = "$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};
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|