# 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 -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 $today = $fp->unixtoj(time());
+my $fh = $fp->open($today) or die $!;
my $nolines = 1;
-$nolines = shift if $ARGV[0] =~ /^\d+$/;
-my $exp = join '|', @ARGV;
+my @patt;
my @prev;
+while (@ARGV) {
+ my $arg = shift;
+ if ($arg =~ /^-+(\d+)/) {
+ $nolines += $1;
+ next;
+ }
+ usage(), exit(0) if $arg =~ /^-+[h\?]/i;
+ push @patt, $arg;
+}
+
+
# seek to end of file
$fh->seek(0, 2);
for (;;) {
- my $line = <$fh>;
+ my $line = $fh->getline;
if ($line) {
- if ($exp) {
+ if (@patt) {
push @prev, $line;
shift @prev while @prev > $nolines;
- if ($line =~ m{(?:$exp)}oi) {
+ 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 = ();
}
# 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;
my $i;
for ($i = 0; $i < 20; $i++) {
- last if $fh = $fp->open(@now);
+ last if $fh = $fp->open($now);
sleep 5;
}
die $! if $i >= 20;
- @today = @now;
+ $today = $now;
}
}
}
my $line = shift;
chomp $line;
$line =~ s/([\x00-\x1f\x7f-\xff])/sprintf("\\x%02X", ord($1))/eg;
- 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 $buf, ' ', join('^', @line), "\n";
+ my ($t, $l) = split /\^/, $line, 2;
+ $t = time unless defined $t;
+ printf "%02d:%02d:%02d %s\n", (gmtime($t))[2,1,0], $l;
}
}
exit(0);
+
+sub usage
+{
+ print << "XXX";
+
+ usage: watchdbg [-nnn lines before] [<regexp>|!<regexp>]...
+
+ You can have more than one <regexp> with an implicit 'and' between them. All
+ <regexes> are caseless. It's recommended to put 'not' (!<regex>) first in any list.
+ Don't forget that you are doing this in a shell and you may need to quote your
+ <regex>s.
+
+ watchdbg -2 progress
+
+ will display any line containing 'progress' and also the two lines before that.
+
+XXX
+}