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#!/usr/bin/env perl
#
# Derived from:
# https://github.com/i3/i3status/blob/28399bf84693a03eb772be647d5927011c1d2619/contrib/wrapper.pl
#
use v5.34;
use warnings;
use feature 'signatures';
no warnings ('experimental::signatures');
use Getopt::Std ();
use JSON ();
sub usage($fh) {
print $fh <<~'EOF'
Usage:
status-bar
status-bar -h
EOF
}
sub help($fh) {
print $fh <<~'EOF'
Options:
-h, --help show this message
Process the output of i3status and add custom information for
showing in the i3 bar.
Examples:
Process i3status:
$ i3status | status-bar
Configure i3 to use status-bar:
# In $XDG_CONFIG_HOME/i3/config
bar {
status_command i3status | status-bar
}
EOF
}
for (@ARGV) {
last if $_ eq '--';
if ($_ eq '--help') {
usage *STDOUT;
help *STDOUT;
exit;
}
}
my %opts;
if (!Getopt::Std::getopts('h', \%opts)) {
usage *STDERR;
exit 2;
}
if ($opts{h}) {
usage *STDOUT;
help *STDOUT;
exit;
}
# Don't buffer any output
$| = 1;
# Skip the first line which contains the version header.
print scalar <STDIN>;
# The second line contains the start of the infinite array.
print scalar <STDIN>;
# Read lines forever, ignore a comma at the beginning if it exists.
while (my ($statusline) = (<STDIN> =~ /^,?(.*)/)) {
# Decode the JSON-encoded line.
my @blocks = @{JSON::decode_json($statusline)};
# Prefix our own information (you coud also suffix or insert in the
# middle).
my $mpris = `player current`;
chomp $mpris;
my $vms = `vm status | grep :up\$ | wc -l`;
chomp $vms;
@blocks = ({
full_text => $vms,
name => 'vms',
}, {
full_text => $mpris,
name => 'mpris',
}, @blocks);
# Output the line as JSON.
print JSON::encode_json(\@blocks) . ",\n";
}
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