prosody
b2e6a175537d
util/logger.lua

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util/logger.lua @ 13028:b2e6a175537d

mod_debug_reset: Don't delay operations until next tick For some unknown reason, this was required with the old mock util.time functions prior to 012d6e7b723a. After 012d6e7b723a, it breaks. So I'm happy to revert to not delaying anything. This makes tests pass again.
author Matthew Wild <mwild1@gmail.com>
date Thu, 06 Apr 2023 14:17:50 +0100
parent 12975:d10957394a3c
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rev   line source
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1 -- Prosody IM
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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 --
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b1885732e979 GPL->MIT!
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5 -- This project is MIT/X11 licensed. Please see the
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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;
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13 local t_remove = table.remove;
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15 local _ENV = nil;
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16 -- luacheck: std none
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18 local level_sinks = {};
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19
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20 local make_logger;
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21
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22 local function init(name)
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23 local log_debug = make_logger(name, "debug");
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24 local log_info = make_logger(name, "info");
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25 local log_warn = make_logger(name, "warn");
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26 local log_error = make_logger(name, "error");
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28 return function (level, message, ...)
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29 if level == "debug" then
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30 return log_debug(message, ...);
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31 elseif level == "info" then
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32 return log_info(message, ...);
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33 elseif level == "warn" then
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34 return log_warn(message, ...);
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35 elseif level == "error" then
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36 return log_error(message, ...);
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37 end
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38 end
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39 end
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40
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41 function make_logger(source_name, level)
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42 local level_handlers = level_sinks[level];
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43 if not level_handlers then
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44 level_handlers = {};
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45 level_sinks[level] = level_handlers;
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46 end
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48 local logger = function (message, ...)
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49 for i = 1,#level_handlers do
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50 level_handlers[i](source_name, level, message, ...);
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51 end
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52 end
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53
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54 return logger;
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55 end
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56
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57 local function reset()
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58 for level, handler_list in pairs(level_sinks) do
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59 -- Clear all handlers for this level
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60 for i = 1, #handler_list do
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61 handler_list[i] = nil;
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62 end
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63 end
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64 end
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65
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66 local function add_level_sink(level, sink_function)
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67 if not level_sinks[level] then
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68 level_sinks[level] = { sink_function };
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69 else
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70 level_sinks[level][#level_sinks[level] + 1 ] = sink_function;
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71 end
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72 end
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73
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74 local function add_simple_sink(simple_sink_function, levels)
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75 local format = require "prosody.util.format".format;
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76 local function sink_function(name, level, msg, ...)
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77 return simple_sink_function(name, level, format(msg, ...));
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78 end
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79 for _, level in ipairs(levels or {"debug", "info", "warn", "error"}) do
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80 add_level_sink(level, sink_function);
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81 end
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82 return sink_function;
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83 end
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84
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85 local function remove_sink(sink_function)
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86 local removed;
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87 for level, sinks in pairs(level_sinks) do
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88 for i = #sinks, 1, -1 do
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89 if sinks[i] == sink_function then
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90 t_remove(sinks, i);
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91 removed = true;
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92 end
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93 end
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94 end
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95 return removed;
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96 end
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97
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98 return {
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99 init = init;
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100 make_logger = make_logger;
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101 reset = reset;
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102 add_level_sink = add_level_sink;
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103 add_simple_sink = add_simple_sink;
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104 new = make_logger;
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105 remove_sink = remove_sink;
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106 };