NAME Log::ger::Output::Screen - Output log to screen VERSION version 0.019 SYNOPSIS use Log::ger::Output Screen => ( # stderr => 1, # set to 0 to print to stdout instead of stderr # use_color => 0, # set to 1/0 to force usage of color, default is from NO_COLOR/COLOR or (-t STDOUT) # color_depth => 16, # if unset will guess from heuristic # colorize_tags => 0, # if set to true, will colorize "[...]" prefix in log message to unique colors # formatter => sub { ... }, ); use Log::ger; log_warn "blah..."; DESCRIPTION This Log::ger plugin outputs log messages as lines to screen (STDERR by default), coloring them according to the log messages' levels. There are different color schemes available, see "Log::ger::Screen::ColorScheme::*" modules like Log::ger::Screen::ColorScheme::Unlike. CONFIGURATION stderr Bool, default 1. Whether to print to STDERR (the default) or STDOUT. use_color Bool. The default is to look at the NO_COLOR and COLOR environment variables, or 1 when in interactive mode and 0 when not in interactive mode. color_depth Integer, either 0, 16, 256, or 16777216. If unset, will use the following heuristic to guess color depth of terminal. First, if "use_color" is false then 0. Otherwise, check if COLORTERM environment variable is defined and has the value of "truecolor"; if yes then use 16777216. Otherwise, check if TERM environment variable contains the string "256color"; if yes then 256. Otherwise 16. colorize_tags Bool, default false. Experimental. If set to true, will colorize "[...]" tag prefixes in log message with unique RGB color. Will only do this if color is enabled, obviously. This option is inspired by Dist::Zilla terminal output. For example, if log message is something like one of the following: [pericmd][plugin Foo::Bar] skip foobar-ing the program because of qux my-prog: [pericmd] [plugin Foo::Bar] skip foobar-ing the program because of qux Then the "[pericmd]" and "[plugin Foo::Bar]" will be given a unique RGB color each. formatter Coderef. When defined, will pass the formatted message (but being applied with colors) to this custom formatter. ENVIRONMENT COLOR_DEPTH Will be used as a default for "color_depth" configuration. NO_COLOR Can be set (to anything) to disable color by default, if "/use_color" is not set. Consulted before "COLOR". COLOR Can be set to disable/enable color by default, if "/use_color" is not set. HISTORY Originally modelled after Log::Any::Adapter::Screen. SEE ALSO Log::ger AUTHOR perlancar COPYRIGHT AND LICENSE This software is copyright (c) 2022, 2021, 2020, 2018, 2017 by perlancar . This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.