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util/logger.lua @ 9236:83375ec33619
util.pubsub: Expand comment on return type from get_items
author | Kim Alvefur <zash@zash.se> |
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date | Sat, 01 Sep 2018 00:45:51 +0200 |
parent | 8556:5800f0c7afd6 |
child | 12394:86d6b069b892 |
rev | line source |
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Remove version number from copyright headers
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1 -- Prosody IM |
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Update copyright headers for 2010
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2 -- Copyright (C) 2008-2010 Matthew Wild |
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3 -- Copyright (C) 2008-2010 Waqas Hussain |
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4 -- |
758 | 5 -- This project is MIT/X11 licensed. Please see the |
6 -- COPYING file in the source package for more information. | |
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7 -- |
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8 -- luacheck: ignore 213/level |
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9 |
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10 local pairs = pairs; |
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11 local ipairs = ipairs; |
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12 local require = require; |
262 | 13 |
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14 local _ENV = nil; |
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15 -- luacheck: std none |
30 | 16 |
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17 local level_sinks = {}; |
262 | 18 |
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19 local make_logger; |
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20 |
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21 local function init(name) |
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22 local log_debug = make_logger(name, "debug"); |
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23 local log_info = make_logger(name, "info"); |
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24 local log_warn = make_logger(name, "warn"); |
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25 local log_error = make_logger(name, "error"); |
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26 |
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27 return function (level, message, ...) |
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28 if level == "debug" then |
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29 return log_debug(message, ...); |
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30 elseif level == "info" then |
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31 return log_info(message, ...); |
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32 elseif level == "warn" then |
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33 return log_warn(message, ...); |
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34 elseif level == "error" then |
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35 return log_error(message, ...); |
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36 end |
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37 end |
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38 end |
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39 |
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40 function make_logger(source_name, level) |
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41 local level_handlers = level_sinks[level]; |
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42 if not level_handlers then |
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43 level_handlers = {}; |
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44 level_sinks[level] = level_handlers; |
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45 end |
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46 |
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47 local logger = function (message, ...) |
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48 for i = 1,#level_handlers do |
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49 level_handlers[i](source_name, level, message, ...); |
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50 end |
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51 end |
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52 |
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53 return logger; |
30 | 54 end |
55 | |
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56 local function reset() |
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57 for level, handler_list in pairs(level_sinks) do |
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58 -- Clear all handlers for this level |
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59 for i = 1, #handler_list do |
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60 handler_list[i] = nil; |
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61 end |
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62 end |
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63 end |
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64 |
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65 local function add_level_sink(level, sink_function) |
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66 if not level_sinks[level] then |
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67 level_sinks[level] = { sink_function }; |
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68 else |
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69 level_sinks[level][#level_sinks[level] + 1 ] = sink_function; |
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70 end |
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71 end |
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72 |
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73 local function add_simple_sink(simple_sink_function, levels) |
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74 local format = require "util.format".format; |
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75 local function sink_function(name, level, msg, ...) |
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76 return simple_sink_function(name, level, format(msg, ...)); |
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77 end |
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78 for _, level in ipairs(levels or {"debug", "info", "warn", "error"}) do |
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79 add_level_sink(level, sink_function); |
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80 end |
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81 end |
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82 |
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83 return { |
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84 init = init; |
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85 make_logger = make_logger; |
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86 reset = reset; |
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87 add_level_sink = add_level_sink; |
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88 add_simple_sink = add_simple_sink; |
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89 new = make_logger; |
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90 }; |