%% -------------------------------------------------------------------
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%%
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%% Copyright (c) 2016-2017 Basho Technologies, Inc.
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%%
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%% This file is provided to you under the Apache License,
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%% Version 2.0 (the "License"); you may not use this file
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%% except in compliance with the License. You may obtain
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%% a copy of the License at
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%%
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%% http://www.apache.org/licenses/LICENSE-2.0
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%%
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%% Unless required by applicable law or agreed to in writing,
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%% software distributed under the License is distributed on an
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%% "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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%% KIND, either express or implied. See the License for the
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%% specific language governing permissions and limitations
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%% under the License.
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%%
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%% -------------------------------------------------------------------
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-module(lager_rotate).
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-ifdef(TEST).
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-include_lib("eunit/include/eunit.hrl").
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-endif.
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-record(state, {
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dir :: string(),
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log1 :: string(),
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log1r :: string(),
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log2 :: string(),
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log2r :: string(),
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sink :: string(),
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sinkr :: string()
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}).
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rotate_test_() ->
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{foreach,
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fun() ->
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{ok, Dir} = lager_util:create_test_dir(),
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Log1 = filename:join(Dir, "test1.log"),
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Log2 = filename:join(Dir, "test2.log"),
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Sink = filename:join(Dir, "sink.log"),
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State = #state{
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dir = Dir,
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log1 = Log1,
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log1r = Log1 ++ ".0",
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log2 = Log2,
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log2r = Log2 ++ ".0",
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sink = Sink,
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sinkr = Sink ++ ".0"
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},
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file:write_file(Log1, []),
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file:write_file(Log2, []),
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file:write_file(Sink, []),
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error_logger:tty(false),
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application:load(lager),
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application:set_env(lager, handlers, [
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{lager_file_backend, [{file, Log1}, {level, info}]},
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{lager_file_backend, [{file, Log2}, {level, info}]} ]),
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application:set_env(lager, extra_sinks, [
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{sink_event,
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[{handlers,
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[{lager_file_backend, [{file, Sink}, {level, info}]}]}
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]}]),
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application:set_env(lager, error_logger_redirect, false),
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application:set_env(lager, async_threshold, undefined),
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lager:start(),
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timer:sleep(1000),
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State
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end,
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fun(#state{}) ->
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ok = application:stop(lager),
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ok = application:stop(goldrush),
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ok = lager_util:delete_test_dir(),
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ok = error_logger:tty(true)
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end, [
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fun(State) ->
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{"Rotate single file",
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fun() ->
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lager:log(error, self(), "Test message 1"),
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lager:log(sink_event, error, self(), "Sink test message 1", []),
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lager:rotate_handler({lager_file_backend, State#state.log1}),
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ok = wait_until(fun() -> filelib:is_regular(State#state.log1r) end, 10),
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lager:log(error, self(), "Test message 2"),
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lager:log(sink_event, error, self(), "Sink test message 2", []),
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{ok, File1} = file:read_file(State#state.log1),
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{ok, File2} = file:read_file(State#state.log2),
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{ok, SinkFile} = file:read_file(State#state.sink),
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{ok, File1Old} = file:read_file(State#state.log1r),
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have_no_log(File1, <<"Test message 1">>),
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have_log(File1, <<"Test message 2">>),
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have_log(File2, <<"Test message 1">>),
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have_log(File2, <<"Test message 2">>),
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have_log(File1Old, <<"Test message 1">>),
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have_no_log(File1Old, <<"Test message 2">>),
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have_log(SinkFile, <<"Sink test message 1">>),
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have_log(SinkFile, <<"Sink test message 2">>)
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end}
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end,
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fun(State) ->
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{"Rotate sink",
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fun() ->
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lager:log(error, self(), "Test message 1"),
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lager:log(sink_event, error, self(), "Sink test message 1", []),
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lager:rotate_sink(sink_event),
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ok = wait_until(fun() -> filelib:is_regular(State#state.sinkr) end, 10),
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lager:log(error, self(), "Test message 2"),
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lager:log(sink_event, error, self(), "Sink test message 2", []),
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{ok, File1} = file:read_file(State#state.log1),
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{ok, File2} = file:read_file(State#state.log2),
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{ok, SinkFile} = file:read_file(State#state.sink),
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{ok, SinkFileOld} = file:read_file(State#state.sinkr),
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have_log(File1, <<"Test message 1">>),
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have_log(File1, <<"Test message 2">>),
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have_log(File2, <<"Test message 1">>),
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have_log(File2, <<"Test message 2">>),
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have_log(SinkFileOld, <<"Sink test message 1">>),
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have_no_log(SinkFileOld, <<"Sink test message 2">>),
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have_no_log(SinkFile, <<"Sink test message 1">>),
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have_log(SinkFile, <<"Sink test message 2">>)
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end}
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end,
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fun(State) ->
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{"Rotate all",
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fun() ->
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lager:log(error, self(), "Test message 1"),
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lager:log(sink_event, error, self(), "Sink test message 1", []),
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lager:rotate_all(),
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ok = wait_until(fun() -> filelib:is_regular(State#state.sinkr) end, 10),
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lager:log(error, self(), "Test message 2"),
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lager:log(sink_event, error, self(), "Sink test message 2", []),
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{ok, File1} = file:read_file(State#state.log1),
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{ok, File2} = file:read_file(State#state.log2),
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{ok, SinkFile} = file:read_file(State#state.sink),
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{ok, File1Old} = file:read_file(State#state.log1r),
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{ok, File2Old} = file:read_file(State#state.log2r),
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{ok, SinkFileOld} = file:read_file(State#state.sinkr),
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have_no_log(File1, <<"Test message 1">>),
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have_log(File1, <<"Test message 2">>),
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have_no_log(File2, <<"Test message 1">>),
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have_log(File2, <<"Test message 2">>),
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have_no_log(SinkFile, <<"Sink test message 1">>),
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have_log(SinkFile, <<"Sink test message 2">>),
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have_log(SinkFileOld, <<"Sink test message 1">>),
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have_no_log(SinkFileOld, <<"Sink test message 2">>),
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have_log(File1Old, <<"Test message 1">>),
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have_no_log(File1Old, <<"Test message 2">>),
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have_log(File2Old, <<"Test message 1">>),
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have_no_log(File2Old, <<"Test message 2">>)
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end}
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end
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]}.
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have_log(Data, Log) ->
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{_,_} = binary:match(Data, Log).
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have_no_log(Data, Log) ->
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nomatch = binary:match(Data, Log).
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wait_until(_Fun, 0) -> {error, too_many_retries};
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wait_until(Fun, Retry) ->
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case Fun() of
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true -> ok;
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false ->
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timer:sleep(500),
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wait_until(Fun, Retry-1)
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end.
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