log4perl-devel:
I am working on a module that incorporates stealth logging. I've used
logwarn() in place of warn() throughout.
When I enable a logger in a script that use's the module, I see warning
messages both on the terminal and in the log destination.
But, when there is no logger enabled, I don't see any warning messages
on the terminal. I was expecting logwarn() would always output the
warning message to the terminal, and additionally output the warning
message to the log destination if logging is enabled. Apparently, not.
As an aside, logdie() appears to work as expected.
I see that Log::Log4perl is now version 1.42 on CPAN. I'm on Debian
Stable (Wheezy), which has version 1.29. I'd rather not upgrade via
'cpan', as I've found that circumventing Apt and the Debian release
process leads to problems.
I don't see liblog-log4perl-perl on Debian Backports.
Any suggestions?
TIA,
David
2013-11-04 23:08:03 dpchrist@p43200 ~/sandbox/perl
$ cat Log-Log4perl-logwarn.pl
#!/usr/bin/perl
use strict;
use warnings;
use Log::Log4perl qw(:easy);
warn "first warning";
my $logger = Log::Log4perl->get_logger();
$logger->logwarn("second warning");
Log::Log4perl->easy_init($WARN);
warn "third warning";
$logger->logwarn("fourth warning");
2013-11-04 23:08:08 dpchrist@p43200 ~/sandbox/perl
$ perl Log-Log4perl-logwarn.pl
first warning at Log-Log4perl-logwarn.pl line 5.
third warning at Log-Log4perl-logwarn.pl line 9.
2013/11/04 23:08:12 fourth warning
fourth warning at Log-Log4perl-logwarn.pl line 10
2013-11-04 23:08:12 dpchrist@p43200 ~/sandbox/perl
$ cat Log-Log4perl-logdie.pl
#!/usr/bin/perl
use strict;
use warnings;
use Log::Log4perl qw(:easy);
my $logger = Log::Log4perl->get_logger();
$logger->logdie("bye");
2013-11-04 23:08:18 dpchrist@p43200 ~/sandbox/perl
$ perl Log-Log4perl-logdie.pl
bye at Log-Log4perl-logdie.pl line 6
2013-11-04 23:08:23 dpchrist@p43200 ~/sandbox/perl
$ cat Log-Log4perl-logdie2.pl
#!/usr/bin/perl
use strict;
use warnings;
use Log::Log4perl qw(:easy);
Log::Log4perl->easy_init($WARN);
my $logger = Log::Log4perl->get_logger();
$logger->logdie("bye");
2013-11-04 23:08:31 dpchrist@p43200 ~/sandbox/perl
$ perl Log-Log4perl-logdie2.pl
2013/11/04 23:08:34 bye
bye at Log-Log4perl-logdie2.pl line 7
2013-11-04 23:08:34 dpchrist@p43200 ~/sandbox/perl
$ perl -MLog::Log4perl -e 'print $Log::Log4perl::VERSION, "\n"'
1.29
2013-11-04 23:08:45 dpchrist@p43200 ~/sandbox/perl
$ perl --version
This is perl 5, version 14, subversion 2 (v5.14.2) built for
i486-linux-gnu-thread-multi-64int
(with 88 registered patches, see perl -V for more detail)
Copyright 1987-2011, Larry Wall
Perl may be copied only under the terms of either the Artistic License
or the
GNU General Public License, which may be found in the Perl 5 source kit.
Complete documentation for Perl, including FAQ lists, should be found on
this system using "man perl" or "perldoc perl". If you have access to the
Internet, point your browser at http://www.perl.org/, the Perl Home Page.
2013-11-04 23:08:55 dpchrist@p43200 ~/sandbox/perl
$ cat /etc/debian_version
7.2
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