NAME

Log::Contextual::SimpleLogger - Super simple logger made for playing with Log::Contextual

VERSION

version 0.009001

SYNOPSIS

            

              
              
use Log::Contextual::SimpleLogger;
use Log::Contextual qw( :log ),
  -logger => Log::Contextual::SimpleLogger->new({ levels => [qw( debug )]});
log_info { 'program started' }; # no-op because info is not in levels
sub foo {
  log_debug { 'entered foo' };
  ...
}
            
          

DESCRIPTION

This module is a simple logger made mostly for demonstration and initial experimentation with Log::Contextual. We recommend you use a real logger instead. For something more serious but not overly complicated, take a look at Log::Dispatchouli.

METHODS

new

Arguments: Dict[ levels => Optional[ArrayRef[Str]], levels_upto => Level, coderef => Optional[CodeRef], ] $conf

            

              
              
my $l = Log::Contextual::SimpleLogger->new({
  levels  => [qw( info warn )],
  coderef => sub { print @_ }, # the default prints to STDERR
});
            
          

or

            

              
              
my $l = Log::Contextual::SimpleLogger->new({
  levels_upto => 'debug',
  coderef     => sub { print @_ }, # the default prints to STDERR
});
            
          

Creates a new SimpleLogger object with the passed levels enabled and optionally a CodeRef may be passed to modify how the logs are output/stored.

levels_upto enables all the levels up to and including the level passed.

Levels may contain:

            

              
              
trace
debug
info
warn
error
fatal
            
          

$level

Arguments: @anything

All of the following six methods work the same. The basic pattern is:

            

              
              
sub $level {
  my $self = shift;
  print STDERR "[$level] " . join qq{\n}, @_;
    if $self->is_$level;
}
            
          

trace

            

              
              
$l->trace( 'entered method foo with args ' join q{,}, @args );
            
          

debug

            

              
              
$l->debug( 'entered method foo' );
            
          

info

            

              
              
$l->info( 'started process foo' );
            
          

warn

            

              
              
$l->warn( 'possible misconfiguration at line 10' );
            
          

error

            

              
              
$l->error( 'non-numeric user input!' );
            
          

fatal

            

              
              
$l->fatal( '1 is never equal to 0!' );
            
          

Note: fatal does not call die for you, see "EXCEPTIONS AND ERROR HANDLING" in Log::Contextual

is_$level

All of the following six functions just return true if their respective level is enabled.

is_trace

            

              
              
say 'tracing' if $l->is_trace;
            
          

is_debug

            

              
              
say 'debuging' if $l->is_debug;
            
          

is_info

            

              
              
say q{info'ing} if $l->is_info;
            
          

is_warn

            

              
              
say 'warning' if $l->is_warn;
            
          

is_error

            

              
              
say 'erroring' if $l->is_error;
            
          

is_fatal

            

              
              
say q{fatal'ing} if $l->is_fatal;
            
          

BUGS

Please report any bugs or feature requests on the bugtracker website https://github.com/haarg/Log-Contextual/issues

When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.

AUTHOR

Arthur Axel "fREW" Schmidt <frioux+cpan@gmail.com>

COPYRIGHT AND LICENSE

This software is copyright (c) 2024 by Arthur Axel "fREW" Schmidt.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

cpanm Log::Contextual

perl -MCPAN -e shell
install Log::Contextual