-#! PERL_COMMAND -w
+#! PERL_COMMAND
+use warnings;
use strict;
+BEGIN { pop @INC if $INC[-1] eq '.' };
-# Copyright (c) 2007-2014 University of Cambridge.
+use Pod::Usage;
+use Getopt::Long;
+
+# 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
# Typical run time acceleration: 4 times
-use Getopt::Std qw(getopts);
use POSIX qw(mktime);
# This subroutine processes a single line (in $_) from a log file. Program
# defensively against short lines finding their way into the log.
-my (%saved, %id_list, $pattern, $queue_time, $insensitive, $invert);
+my (%saved, %id_list, $pattern);
+
+my $queue_time = -1;
+my $insensitive = 1;
+my $invert = 0;
+my $related = 0;
+my $use_pager = 1;
+my $literal = 0;
+
# If using "related" option, have to track extra message IDs
-my $related;
my $related_re='';
my @Mids = ();
{
if ($filename =~ /\.(?:$ext)$/)
{
- # Just die if compressor not found; if this occurrs in the middle of
+ # 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->{$ext}->{bin} eq '');
# which is an additional condition. The -M flag will also display "related"
# loglines (msgid from matched lines is searched in following lines).
-getopts('Ilvt:M',\my %args);
-$queue_time = $args{'t'}? $args{'t'} : -1;
-$insensitive = $args{'I'}? 0 : 1;
-$invert = $args{'v'}? 1 : 0;
-$related = $args{'M'}? 1 : 0;
-
-die "usage: exigrep [-I] [-l] [-M] [-t <seconds>] [-v] <pattern> [<log file>]...\n"
- if ($#ARGV < 0);
+GetOptions(
+ 'I|sensitive' => sub { $insensitive = 0 },
+ 'l|literal' => \$literal,
+ 'M|related' => \$related,
+ 't|queue-time=i' => \$queue_time,
+ 'pager!' => \$use_pager,
+ 'v|invert' => \$invert,
+ 'h|help' => sub { pod2usage(-exit => 0, -verbose => 1) },
+ 'm|man' => sub {
+ pod2usage(
+ -exit => 0,
+ -verbose => 2,
+ -noperldoc => system('perldoc -V 2>/dev/null >&2')
+ );
+ },
+) and @ARGV or pod2usage;
$pattern = shift @ARGV;
-$pattern = quotemeta $pattern if $args{l};
+$pattern = quotemeta $pattern if $literal;
+# Start a pager if output goes to a terminal
+if (-t 1 and $use_pager)
+ {
+ foreach ($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.
print "+++ $_ has not completed +++\n$saved{$_}\n";
}
-# End of exigrep
+__END__
+
+=head1 NAME
+
+exigrep - search Exim's main log
+
+=head1 SYNOPSIS
+
+B<exigrep> [options] pattern [log] ...
+
+=head1 DESCRIPTION
+
+The B<exigrep> utility is a Perl script that searches one or more main log
+files for entries that match a given pattern. When it finds a match,
+it extracts all the log entries for the relevant message, not just
+those that match the pattern. Thus, B<exigrep> can extract complete log
+entries for a given message, or all mail for a given user, or for a
+given host, for example.
+
+If no file names are given on the command line, the standard input is read.
+
+For known file extensions indicating compression (F<.gz>, F<.bz2>, F<.xz>, and F<.lzma>)
+a suitable de-compressor is used, if available.
+
+The output is sent through a pager if a terminal is connected to STDOUT. As
+pager are considered: C<$ENV{PAGER}>, C<less>, C<more>.
+
+=head1 OPTIONS
+
+=over
+
+=item B<-l>|B<--literal>
+
+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>|B<--queue-time> I<seconds>
+
+Limit the output to messages that spent at least I<seconds> in the
+queue.
+
+=item B<-I>|B<--sensitive>
+
+Do a case sensitive search.
+
+=item B<-v>|B<--invert>
+
+Invert the meaning of the search pattern. That is, print message log
+entries that are not related to that pattern.
+
+=item B<-M>|B<--related>
+
+Search for related messages too.
+
+=item B<--no-pager>
+
+Do not use a pager, even if STDOUT is connected to a terminal.
+
+=item B<-h>|B<--help>
+
+Print a short reference help. For more detailed help try L<exigrep(8)>,
+or C<exigrep -m>.
+
+=item B<-m>|B<--man>
+
+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