NAME
    Log::ger::Layout::LTSV - Layout log message as LTSV

VERSION
    This document describes version 0.006 of Log::ger::Layout::LTSV (from
    Perl distribution Log-ger-Layout-LTSV), released on 2020-03-11.

SYNOPSIS
     use Log::ger::Layout LTSV => (
         add_fields         => {key3 => 'value', key4 => 'value', ...},         # optional
         add_special_fields => {_date => 'Date_GMT', _host => 'Hostname', ...}, # optional
         delete_fields      => ['key1', 'key2', qr/some-regex/, ...],           # optional
     );
     use Log::ger;

     # if you use it together with Log::ger::Format::None:
     log_warn({key1 => 'val1', key2 => 'val2', foo => 'bar', ...);

     # otherwise, using the standard formatter:
     log_warn("blah %s", ['some', 'data']);

    The final message will be something like:

     _date:2017-06-28T14:08:22      _host:example.com       foo:bar key3:value      key4:value

    or:

     _date:2017-06-28T14:08:22      _host:example.com       message:blah ["some","data"]

DESCRIPTION
    This layouter allows you to log message as LTSV row. If you use
    Log::ger::Format::None, you can pass a hashref. Otherwise, the message
    will be put in "message" label. You can then delete keys then add
    additional fields/keys (including special fields, a la
    Log::ger::Layout::Pattern).

CONFIGURATION
  add_fields => hash
  add_special_fields => hash
    Known special fields:

     Category: Category of the logging event
     Class: Fully qualified package [or class] name of the caller
     Date_Local: Current date in ISO8601 format (YYYY-MM-DD<T>hh:mm:ss) (localtime)
     Date_GMT: Current date in ISO8601 format (YYYY-MM-DD<T>hh:mm:ss) (GMT)
     File: File where the logging event occurred
     Hostname: (if Sys::Hostname is available)
     Location: Fully qualified name of the calling method followed by the
       callers source the file name and line number between parentheses.
     Line: Line number within the file where the log statement was issued
     Message: The message to be logged
     Method: Method or function where the logging request was issued
     Level: Level ("priority") of the logging event
     PID: PID of the current process
     Elapsed_Start: Number of seconds elapsed from program start to logging event
     Elapsed_Last: Number of seconds elapsed from last logging event to current
       logging event
     Stack_Trace: stack trace of functions called

    Unknown special fields will cause the layouter to die.

  delete_fields
  packages_to_ignore
    Regex or arrayref. When producing caller or stack trace information,
    will pass this to Devel::Caller::Util's "caller()" or "callers()".

  subroutines_to_ignore
    Regex or arrayref. When producing caller or stack trace information,
    will pass this to Devel::Caller::Util's "caller()" or "callers()".

HOMEPAGE
    Please visit the project's homepage at
    <https://metacpan.org/release/Log-ger-Layout-LTSV>.

SOURCE
    Source repository is at
    <https://github.com/perlancar/perl-Log-ger-Layout-LTSV>.

BUGS
    Please report any bugs or feature requests on the bugtracker website
    <https://rt.cpan.org/Public/Dist/Display.html?Name=Log-ger-Layout-LTSV>

    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.

SEE ALSO
    More about LTSV format: <http://ltsv.org>

    Log::ger

    Log::ger::Layout::Pattern

AUTHOR
    perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE
    This software is copyright (c) 2020, 2019, 2017 by perlancar@cpan.org.

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