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add support settings to specify multiple logging levels #549

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add support settings to specify multiple logging levels #549

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6 changes: 3 additions & 3 deletions src/lager.erl
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Original file line number Diff line number Diff line change
Expand Up @@ -440,17 +440,17 @@ get_sink_handler_status(Sink, Handler, Level) ->
end.

%% @doc Set the loglevel for a particular backend.
set_loglevel(Handler, Level) when is_atom(Level) ->
set_loglevel(Handler, Level) when is_atom(Level); is_list(Level) ->
set_loglevel(?DEFAULT_SINK, Handler, undefined, Level).

%% @doc Set the loglevel for a particular backend that has multiple identifiers
%% (eg. the file backend).
set_loglevel(Handler, Ident, Level) when is_atom(Level) ->
set_loglevel(Handler, Ident, Level) when is_atom(Level); is_list(Level) ->
set_loglevel(?DEFAULT_SINK, Handler, Ident, Level).

%% @doc Set the loglevel for a particular sink's backend that potentially has
%% multiple identifiers. (Use `undefined' if it doesn't have any.)
set_loglevel(Sink, Handler, Ident, Level) when is_atom(Level) ->
set_loglevel(Sink, Handler, Ident, Level) when is_atom(Level); is_list(Level) ->
HandlerArg = case Ident of
undefined -> Handler;
_ -> {Handler, Ident}
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2 changes: 2 additions & 0 deletions src/lager_console_backend.erl
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Expand Up @@ -586,6 +586,8 @@ set_loglevel_test_() ->
?assertEqual(info, lager:get_loglevel(lager_console_backend)),
lager:set_loglevel(lager_console_backend, '!=info'),
?assertEqual(debug, lager:get_loglevel(lager_console_backend)),
lager:set_loglevel(lager_console_backend, [debug, info]),
?assertEqual(debug, lager:get_loglevel(lager_console_backend)),
ok
end
},
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4 changes: 3 additions & 1 deletion src/lager_util.erl
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Expand Up @@ -98,9 +98,11 @@ mask_to_levels(Mask, [Level|Levels], Acc) ->
end,
mask_to_levels(Mask, Levels, NewAcc).

-spec config_to_levels(atom()|string()) -> [lager:log_level()].
-spec config_to_levels(atom()|string()|[atom()]) -> [lager:log_level()].
config_to_levels(Conf) when is_atom(Conf) ->
config_to_levels(atom_to_list(Conf));
config_to_levels([Level | _Rest] = Conf) when is_atom(Level) ->
lists:filter(fun(E) -> lists:member(E, Conf) end, levels());
config_to_levels([$! | Rest]) ->
levels() -- config_to_levels(Rest);
config_to_levels([$=, $< | Rest]) ->
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