made the communications between clients and server completely ascii (no

[spider.git] / perl / watchdbg

diff --git a/perl/watchdbg b/perl/watchdbg
new file mode 100755 (executable)
index 0000000..745d698
--- /dev/null
+++ b/perl/watchdbg
@@ -0,0 +1,66 @@
+#!/usr/bin/perl
+#
+# watch the end of the current debug file (like tail -f) applying
+# any regexes supplied on the command line.
+#
+# examples:-
+# 
+#   watchdbg g1tlh       # watch everything g1tlh does
+#   watchdbg gb7baa gb7djk   # watch the conversation between BAA and DJK 
+#
+
+require 5.004;
+
+# search local then perl directories
+BEGIN {
+       # root of directory tree for this system
+       $root = "/spider"; 
+       $root = $ENV{'DXSPIDER_ROOT'} if $ENV{'DXSPIDER_ROOT'};
+       
+       unshift @INC, "$root/perl";     # this IS the right way round!
+       unshift @INC, "$root/local";
+}
+
+use IO::File;
+use DXVars;
+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 $exp = join '|', @ARGV;
+
+# seek to end of file
+$fh->seek(0, 2);
+for (;;) {
+       my $line = <$fh>;
+       if ($line) {
+               if ($exp) {
+                       printit($line) if $line =~ m{(?:$exp)}oi;
+               } else {
+            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]) {
+                       $fp->close;
+                       $fh = $fp->open(@now) or die $!; 
+               }
+       }
+}
+
+sub printit
+{
+       my $line = shift;
+       my @line =  split '\^', $line;
+       my $t = shift @line;
+       print atime($t), ' ', join('^', @line); 
+}
+exit(0);