mirror of
https://github.com/correl/rebar.git
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83 lines
2.9 KiB
Erlang
83 lines
2.9 KiB
Erlang
%% -*- erlang-indent-level: 4;indent-tabs-mode: nil -*-
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%% ex: ts=4 sw=4 et
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%% -------------------------------------------------------------------
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%%
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%% rebar: Erlang Build Tools
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%%
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%% Copyright (c) 2009 Dave Smith (dizzyd@dizzyd.com)
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%%
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%% Permission is hereby granted, free of charge, to any person obtaining a copy
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%% of this software and associated documentation files (the "Software"), to deal
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%% in the Software without restriction, including without limitation the rights
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%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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%% copies of the Software, and to permit persons to whom the Software is
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%% furnished to do so, subject to the following conditions:
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%%
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%% The above copyright notice and this permission notice shall be included in
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%% all copies or substantial portions of the Software.
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%%
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%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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%% THE SOFTWARE.
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%% -------------------------------------------------------------------
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-module(rebar_log).
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-export([init/1,
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set_level/1, default_level/0,
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log/3]).
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%% ===================================================================
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%% Public API
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%% ===================================================================
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init(Config) ->
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Verbosity = rebar_config:get_global(Config, verbose, default_level()),
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case valid_level(Verbosity) of
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0 -> set_level(error);
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1 -> set_level(warn);
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2 -> set_level(info);
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3 -> set_level(debug)
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end.
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set_level(Level) ->
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ok = application:set_env(rebar, log_level, Level).
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log(Level, Str, Args) ->
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{ok, LogLevel} = application:get_env(rebar, log_level),
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case should_log(LogLevel, Level) of
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true ->
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io:format(log_prefix(Level) ++ Str, Args);
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false ->
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ok
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end.
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default_level() -> error_level().
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%% ===================================================================
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%% Internal functions
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%% ===================================================================
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valid_level(Level) ->
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erlang:max(error_level(), erlang:min(Level, debug_level())).
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error_level() -> 0.
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debug_level() -> 3.
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should_log(debug, _) -> true;
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should_log(info, debug) -> false;
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should_log(info, _) -> true;
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should_log(warn, debug) -> false;
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should_log(warn, info) -> false;
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should_log(warn, _) -> true;
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should_log(error, error) -> true;
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should_log(error, _) -> false;
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should_log(_, _) -> false.
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log_prefix(debug) -> "DEBUG: ";
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log_prefix(info) -> "INFO: ";
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log_prefix(warn) -> "WARN: ";
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log_prefix(error) -> "ERROR: ".
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