#!/usr/bin/env perl
use strict;
use warnings;
use Path::Tiny;
use IO::Termios;

my $makefile = path(__FILE__)->parent(2)->child('Makefile');
my ($port) = $makefile->slurp() =~ /^UPLOAD_PORT\s*=\s*(\S+)/sm;

my $fh = IO::Termios->open($port, '115200,8,n,1')
    or die "Can't open $port: $!\n";

$fh->cfmakeraw();

print $fh "xx logcat\n"
    or die "Can't write: $!";
my $in_log=0;
while (<$fh>) {
    if (/^xx end\b/) {
        last;
    }
    elsif ($in_log) {
        print;
    }
    elsif (/^xx begin\b/) {
        $in_log=1;
    }
}