-#! PERL_COMMAND -w
-# $Cambridge: exim/src/src/exigrep.src,v 1.9 2007/03/13 16:37:57 ph10 Exp $
+#! PERL_COMMAND
+use warnings;
use strict;
+use Pod::Usage;
+BEGIN { pop @INC if $INC[-1] eq '.' };
-# Copyright (c) 2007 University of Cambridge.
+# Copyright (c) 2007-2015 University of Cambridge.
# See the file NOTICE for conditions of use and distribution.
# Except when they appear in comments, the following placeholders in this
my (%saved, %id_list, $pattern, $queue_time, $insensitive, $invert);
+# If using "related" option, have to track extra message IDs
+my $related;
+my $related_re='';
+my @Mids = ();
+
sub do_line {
# Convert syslog lines to mainlog format, as in eximstats.
}
else
{
- $id_list{$id} = 1 if defined $id_list{$id} ||
- ($insensitive && /$pattern/io) || /$pattern/o;
+ if (defined $id_list{$id} ||
+ ($insensitive && /$pattern/io) || /$pattern/o)
+ {
+ $id_list{$id} = 1;
+ get_related_ids($id) if $related;
+ }
+ elsif ($related && $related_re)
+ {
+ grep_for_related($_, $id);
+ }
}
# See if this is a completion for some message. If it is interesting,
{ print "$_\n"; }
}
+# Rotated log files are frequently compressed and there are a variety of
+# formats it could be compressed with. Rather than use just one that is
+# detected and hardcoded at Exim compile time, detect and use what the
+# logfile is compressed with on the fly.
+#
+# List of known compression extensions and their associated commands:
+my $compressors = {
+ gz => { cmd => 'zcat', args => '' },
+ bz2 => { cmd => 'bzcat', args => '' },
+ xz => { cmd => 'xzcat', args => '' },
+ lzma => { cmd => 'lzma', args => '-dc' }
+};
+my $csearch = 0;
+
+sub detect_compressor_bin
+ {
+ my $ext = shift();
+ my $c = $compressors->{$ext}->{cmd};
+ $compressors->{$ext}->{bin} = `which $c 2>/dev/null`;
+ chomp($compressors->{$ext}->{bin});
+ }
+
+sub detect_compressor_capable
+ {
+ my $filename = shift();
+ map { &detect_compressor_bin($_) } keys %$compressors
+ if (!$csearch);
+ $csearch = 1;
+ return undef
+ unless (grep {$filename =~ /\.(?:$_)$/} keys %$compressors);
+ # Loop through them, figure out which one it detected,
+ # and build the commandline.
+ my $cmdline = undef;
+ foreach my $ext (keys %$compressors)
+ {
+ if ($filename =~ /\.(?:$ext)$/)
+ {
+ # Just die if compressor not found; if this occurs in the middle of
+ # two valid files with a lot of matches, error could easily be missed.
+ die("Didn't find $ext decompressor for $filename\n")
+ if ($compressors->{$ext}->{bin} eq '');
+ $cmdline = $compressors->{$ext}->{bin} ." ".
+ $compressors->{$ext}->{args};
+ last;
+ }
+ }
+ return $cmdline;
+ }
+
+sub grep_for_related {
+ my ($line,$id) = @_;
+ $id_list{$id} = 1 if $line =~ m/$related_re/;
+}
+
+sub get_related_ids {
+ my ($id) = @_;
+ push @Mids, $id unless grep /\b$id\b/, @Mids;
+ my $re = join '|', @Mids;
+ $related_re = qr/$re/;
+}
# The main program. Extract the pattern and make sure any relevant characters
# are quoted if the -l flag is given. The -t flag gives a time-on-queue value
-# which is an additional condition.
+# which is an additional condition. The -M flag will also display "related"
+# loglines (msgid from matched lines is searched in following lines).
-getopts('Ilvt:',\my %args);
+getopts('Ilvt:Mhm',\my %args);
$queue_time = $args{'t'}? $args{'t'} : -1;
$insensitive = $args{'I'}? 0 : 1;
$invert = $args{'v'}? 1 : 0;
+$related = $args{'M'}? 1 : 0;
-die "usage: exigrep [-I] [-l] [-t <seconds>] [-v] <pattern> [<log file>]...\n"
- if ($#ARGV < 0);
+pod2usage(-exit => 0, -verbose => 1) if $args{'h'};
+pod2usage(-exit => 0, -verbose => 2, -noperldoc => system('perldoc -V 2>/dev/null >/dev/null'))
+ if $args{'m'};
+pod2usage if not @ARGV;
$pattern = shift @ARGV;
$pattern = quotemeta $pattern if $args{l};
+# Start a pager if output goes to a terminal
+if (-t 1)
+ {
+ foreach ($ENV{PAGER}//(), 'less', 'more')
+ {
+ open(my $pager, '|-', $_) or next;
+ select $pager;
+ last;
+ }
+}
# If file arguments are given, open each one and process according as it is
# is compressed or not.
foreach (@ARGV)
{
my $filename = $_;
- if ($filename =~ /\.(?:COMPRESS_SUFFIX)$/o)
+ if (-x 'ZCAT_COMMAND' && $filename =~ /\.(?:COMPRESS_SUFFIX)$/o)
{
open(LOG, "ZCAT_COMMAND $filename |") ||
die "Unable to zcat $filename: $!\n";
}
+ elsif (my $cmdline = &detect_compressor_capable($filename))
+ {
+ open(LOG, "$cmdline $filename |") ||
+ die "Unable to decompress $filename: $!\n";
+ }
else
{
open(LOG, "<$filename") || die "Unable to open $filename: $!\n";
print "+++ $_ has not completed +++\n$saved{$_}\n";
}
-# End of exigrep
+__END__
+
+=head1 NAME
+
+exigrep - search Exim's main log
+
+=head1 SYNOPSIS
+
+B<exigrep> [options] pattern [log] ...
+
+=head1 DESCRIPTION
+
+The B<exigrep> utility is a Perl script that searches one or more main log
+files for entries that match a given pattern. When it finds a match,
+it extracts all the log entries for the relevant message, not just
+those that match the pattern. Thus, B<exigrep> can extract complete log
+entries for a given message, or all mail for a given user, or for a
+given host, for example.
+
+If no file names are given on the command line, the standard input is read.
+
+For known file extensions indicating compression (F<.gz>, F<.bz2>, F<.xz>, and F<.lzma>)
+a suitable de-compressor is used, if available.
+
+=head1 OPTIONS
+
+=over
+
+=item B<-l>
+
+This means 'literal', that is, treat all characters in the
+pattern as standing for themselves. Otherwise the pattern must be a
+Perl regular expression. The pattern match is case-insensitive.
+
+=item B<-t> I<seconds>
+
+Limit the output to messages that spent at least I<seconds> in the
+queue.
+
+=item B<-I>
+
+Do a case sensitive search.
+
+=item B<-v>
+
+Invert the meaning of the search pattern. That is, print message log
+entries that are not related to that pattern.
+
+=item B<-M>
+
+Search for related messages too.
+
+=item B<-h>
+
+Print a short reference help. For more detailed help try L<exigrep(8)>,
+or C<exigrep -m>.
+
+=item B<-m>
+
+Print this manual page of B<exigrep>.
+
+=back
+
+=head1 SEE ALSO
+
+L<exim(8)>, L<perlre(1)>, L<Exim|http://exim.org/>
+
+=head1 AUTHOR
+
+This manual page was stitched together from spec.txt by Andreas Metzler L<ametzler at downhill.at.eu.org>
+and updated by Heiko Schlittermann L<hs@schlittermann.de>.
+
+=cut
git://git.exim.org / exim.git / blobdiff