A variety of simple automation scripts and enhancements to Sway and i3.
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 

305 lines
8.1 KiB

#!/usr/bin/perl -w
# Files containing current and max brightness values
my $cur_file = "/sys/class/backlight/intel_backlight/brightness";
my $max_file = "/sys/class/backlight/intel_backlight/max_brightness";
my $last_file = "/home/jpm/.config/blc.last";
sub to_percent {
my $value = shift;
if ($value eq "Permission Denied") {
return $value;
} else {
$value = int($value/get_max()*100);
return $value . '%';
}
}
sub get_offset {
return int(get_max()/100);
}
sub get_current {
open(my $c,'<',"$cur_file");
my $current = <$c>;
close $c;
chomp $current;
return $current;
}
sub get_max {
open(my $m,'<',"$max_file");
my $max = <$m>;
close $m;
chomp $max;
return $max;
}
sub get_min {
return int((get_max()/100)+2);
}
sub writable {
if (! -w $cur_file) {
return 0;
} else {
return 1;
}
}
sub increment {
if (writable()) {
my $current = get_current();
my $max = get_max();
my $target = $current+get_offset();
if ($target > $max) {
$target = $max;
}
open(my $c,'>',"$cur_file");
print $c $target;
close $c;
return $target;
} else {
return "Permission Denied";
}
}
sub decrement {
if (writable()) {
my $current = get_current();
my $min = get_min();
my $target = $current-get_offset();
if ($target < $min) {
$target = $min;
}
open(my $c,'>',"$cur_file");
print $c $target;
close $c;
return $target;
} else {
return "Permission Denied";
}
}
sub set {
my $value = shift;
if (writable()) {
$current = get_current();
if ($value > $current) {
for (my $i=$current;$i<=$value;$i++) {
open(my $c,'>',"$cur_file");
print $c $i;
close $c;
}
} else {
for (my $i=$current;$i>=$value;$i--) {
open(my $c,'>',"$cur_file");
print $c $i;
close $c;
}
}
return $value;
} else {
return "Permission Denied";
}
}
sub help {
print "
Backlight Control
Usage: blc.pl [--silent|--notify] [OPTION] [VALUE]
With no option the backlight information is printed as JSON.
Output printed to STDOUT unless:
--silent Do not display output (overrides --notify)
--notify Send output to notification daemon. --notify=N will
change the display duration in ms. Default is 200ms
Output option must preceed the first Action option.
Actions:
= VALUE Set backlight to specific value. VALUE greater than
100 will be treated as absolute value. VALUE eqaul to
or less than 100 will be treated as a percentage
++ Increment by 1%
+= VALUE Increment by VALUE percent
-- Decrement by 1%
-= VALUE Decrement by VALUE percent
Actions corrected to 1% or 100% if over or under. All actions
provide output as a percentage, with the % symbol.
Final percentage printed as below, skipping other options.
Print:
== Print current absolute value
^ Print maximum absolute value
% Print current percentage (does not include % symbol)
--help Help (not impacted by --silent or --notify)
--HELP Advanced help (same as above)
Any other option will be printed literally";
}
sub advanced {
$current = get_current();
$max = get_max();
print ".
Print functions can be strung together but command will exit
with the first non-print option. eg.
\$ blc.pl == / ^
21/100
\$ blc.pl == ++
('==' ignored)
(Backlight incremented)
Escape options with \\ in quotes to display them literally. eg.
\$ blc.pl == / ^ '\\=' % \'\\%\'
" . $current . "/" . $max . "=" . int($current/$max*100) . "%
Only one \'\\' is removed per block. eg.
\$ blc.pl '\\% \\'
% \\
";
}
my $current = get_current();
my (@output, $target, $silent, $notify);
if (scalar @ARGV) {
for (my $i=0;$i<scalar @ARGV;$i++) {
if ($ARGV[$i] eq '++') {
$target = increment();
@output = to_percent($target);
last;
} elsif ($ARGV[$i] eq '+=') {
for (my $i=0;$i<scalar @ARGV;$i++) {
if ($ARGV[$i] eq '+=') {
if (defined $ARGV[($i+1)]) {
$count = $ARGV[($i+1)];
for (my $j=0;$j<$count;$j++) {
$target = increment();
if ($target eq "Permission Denied") {
last;
}
}
@output = to_percent($target);
} else {
@output = ("No value after $ARGV[$i]");
}
last;
}
}
last;
} elsif ($ARGV[$i] eq '--') {
$target = decrement();
@output = to_percent($target);
last;
} elsif ($ARGV[$i] eq '-=') {
for (my $i=0;$i<scalar @ARGV;$i++) {
if ($ARGV[$i] eq '-=') {
if (defined $ARGV[($i+1)]) {
$count = $ARGV[($i+1)];
for (my $j=0;$j<$count;$j++) {
$target = decrement();
if ($target eq "Permission Denied") {
last;
}
}
@output = to_percent($target);
} else {
@output = ("No value after $ARGV[$i]");
}
last;
}
}
last;
} elsif ($ARGV[$i] eq '=') {
$target = $ARGV[($i+1)];
if (defined $target) {
if ($target < 1) {
$target = set(get_min());
} elsif ($target > get_max()) {
$target = set(get_max());
} elsif ($target > 100) {
$target = set($target);
} else {
$target = set(int((get_max()*$target/100)+1));
}
if ($target eq "Permission Denied") {
@output = $target;
} else {
@output = to_percent($target);
}
last;
} else {
@output = ("No value after $ARGV[$i]");
last;
}
} elsif ($ARGV[$i] eq '%') {
push @output,int(get_current()/get_max()*100);
} elsif ($ARGV[$i] eq '^') {
push @output,get_max();
} elsif ($ARGV[$i] eq '==') {
push @output,get_current();
} elsif ($ARGV[$i] eq '--help') {
help();
print " (see --HELP).\n\n";
exit();
} elsif ($ARGV[$i] eq '--HELP') {
help();
advanced();
exit();
} elsif ($ARGV[$i] eq '--silent') {
$silent = 'TRUE';
} elsif ($ARGV[$i] =~ /^--notify/) {
$notify = 'TRUE';
if ($ARGV[$i] =~ /=[0-9]+$/) {
$duration = $ARGV[$i];
$duration =~ s/.*=([0-9]+)/$1/;
} else {
$duration = 200;
}
} else {
my $add = $ARGV[$i];
$add =~ s/\\//;
push @output,$add;
}
}
} else {
@output = ('{"Backlight":{"Max":"' . get_max() . '","Current":"' . get_current() . '","Percentage","' . int(get_current()/get_max()*100) . '%"}}');
}
open(my $fh,'>',$last_file);
print $fh get_current();
close($fh);
if ($silent) {
exit();
} elsif ($notify) {
# Don't output anything if the value didn't change
if ($current == get_current()) {
exit();
}
my $concat;
foreach (@output) {
$concat .= $_;
}
system "notify-send --urgency=normal -i /usr/share/icons/Papirus-Dark-Grey/48x48/status/notification-display-brightness.svg -t $duration \"$concat\"";
exit();
} else {
print foreach @output;
print "\n";
exit();
}