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#!/usr/bin/env perl
use strict;
use warnings;
use constant OS => `uname | tr -d '\n'`;
use constant {
SLOCK_PATH => 'slock',
XSCREENSAVER_PATH => 'xscreensaver-command',
ACPI_PATH => '/usr/sbin/acpiconf',
KILL_PATH => '/usr/bin/killall',
SHUTDOWN_PATH => '/sbin/shutdown',
LOGINCTL_PATH => '/usr/bin/loginctl',
NOTIF_PATH => 'notify-send',
EMACS_PATH => 'emacsclient'
};
use constant LIST => [
'Lock screen',
'Sleep',
'Logout',
'Reboot',
'Shutdown'
];
use constant CONFIRM => [
"No",
"Yes"
];
sub confirm
{
my ($var) = @_;
my $list;
my $choice;
for (@{+CONFIRM}) {
$list .= $_ . "\n";
}
$choice = `printf "%s" "$list" | dmenu -i -p "$var?" -l 2 -m 0`;
chomp $choice;
if ($choice eq ${+CONFIRM}[1]) {
return (1);
}
return (0);
}
sub action
{
my ($var) = @_;
my $pid;
chomp $var;
if ($var eq ${+LIST}[0]) {
exec(XSCREENSAVER_PATH, '-lock');
}
elsif ($var eq ${+LIST}[1]) {
$pid = fork();
if (not $pid) {
exec(XSCREENSAVER_PATH, '-lock');
}
else {
system(
NOTIF_PATH,
'-u',
'normal',
'shutdown',
' G\'night, partner!'
);
sleep 2;
if (OS eq 'Linux') {
exec(LOGINCTL_PATH, 'suspend');
}
exec(ACPI_PATH, '-s', '3');
}
}
elsif ($var eq ${+LIST}[2]) {
if (confirm($var) == 1) {
system(EMACS_PATH, '-e', '"(save-buffers-kill-terminal)"');
if (OS eq 'Linux') {
exec(LOGINCTL_PATH, 'terminate-session', 'self');
}
exec(KILL_PATH, 'dwm');
}
}
elsif ($var eq ${+LIST}[3]) {
if (confirm($var) == 1) {
system(EMACS_PATH, '-e', '"(save-buffers-kill-terminal)"');
if (OS eq 'Linux') {
exec(LOGINCTL_PATH, 'reboot');
}
exec(SHUTDOWN_PATH, '-r', 'now');
}
}
elsif ($var eq ${+LIST}[4]) {
if (confirm($var) == 1) {
system(EMACS_PATH, '-e', '"(save-buffers-kill-terminal)"');
system(
NOTIF_PATH,
'-u',
'normal',
'shutdown',
' Farewell, partner!'
);
sleep 2;
if (OS eq 'Linux') {
exec(LOGINCTL_PATH, 'poweroff');
}
exec(SHUTDOWN_PATH, '-p', 'now');
}
}
return;
}
sub main
{
my $list;
my $choice;
for (@{+LIST}) {
$list .= $_ . "\n";
}
$choice = `printf "%s" "$list" | dmenu -i -l 5 -m 0`;
action($choice);
return (0);
}
main();
__END__
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