# watch the end of the current debug file (like tail -f) applying
# any regexes supplied on the command line.
#
+# There can be more than one <regexp>. a <regexp> preceeded by a '!' is
+# treated as NOT <regexp>. Each <regexp> is implcitly ANDed together.
+# All <regexp> are caseless.
+#
# examples:-
#
# watchdbg g1tlh # watch everything g1tlh does
+# watchdbg -2 PCPROT # watch all PCPROT messages + up to 2 lines before
# watchdbg gb7baa gb7djk # watch the conversation between BAA and DJK
#
}
use IO::File;
-use DXVars;
+use SysVar;
use DXUtil;
use DXLog;
use strict;
my $fp = DXLog::new('debug', 'dat', 'd');
-my @today = Julian::unixtoj(time());
-my $fh = $fp->open(@today) or die $!;
-my $exp = join '|', @ARGV;
+my $today = $fp->unixtoj(time());
+my $fh = $fp->open($today) or die $!;
+my $nolines = 1;
+$nolines = shift if $ARGV[0] =~ /^-?\d+$/;
+$nolines = abs $nolines if $nolines < 0;
+my @patt = @ARGV;
+my @prev;
# seek to end of file
$fh->seek(0, 2);
for (;;) {
- my $line = <$fh>;
+ my $line = $fh->getline;
if ($line) {
- if ($exp) {
- printit($line) if $line =~ m{(?:$exp)}oi;
+ if (@patt) {
+ push @prev, $line;
+ shift @prev while @prev > $nolines;
+ my $flag = 0;
+ foreach my $p (@patt) {
+ if ($p =~ /^!/) {
+ my $r = substr $p, 1;
+ last if $line =~ m{$r}i;
+ } else {
+ last unless $line =~ m{$p}i;
+ }
+ ++$flag;
+ }
+ if ($flag == @patt) {
+ printit(@prev);
+ @prev = ();
+ }
} else {
- printit($line);
- }
+ printit($line);
+ }
} else {
sleep(1);
-
+
# check that the debug hasn't rolled over to next day
# open it if it has
- my @now = Julian::unixtoj(time());
- if ($today[1] != $now[1]) {
+ my $now = $fp->unixtoj(time());
+ if ($today->cmp($now)) {
$fp->close;
- for (my $i = 0; $i < 20; $i++) {
- last if $fh = $fp->open(@now);
+ my $i;
+ for ($i = 0; $i < 20; $i++) {
+ last if $fh = $fp->open($now);
sleep 5;
}
die $! if $i >= 20;
- @today = @now;
+ $today = $now;
}
}
}
sub printit
{
- my $line = shift;
- my @line = split '\^', $line;
- my $t = shift @line;
- my ($sec,$min,$hour) = gmtime((defined $t) ? $t : time);
- my $buf = sprintf "%02d:%02d:%02d", $hour, $min, $sec;
-
- print $buf, ' ', join('^', @line);
+ while (@_) {
+ my $line = shift;
+ chomp $line;
+ $line =~ s/([\x00-\x1f\x7f-\xff])/sprintf("\\x%02X", ord($1))/eg;
+ my ($t, $l) = split /\^/, $line, 2;
+ $t = time unless defined $t;
+ printf "%02d:%02d:%02d %s\n", (gmtime($t))[2,1,0], $l;
+ }
}
exit(0);