prosody
87105a9a11df
core/loggingmanager.lua

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core/loggingmanager.lua @ 11369:87105a9a11df

util.datamanager: Support iterating over any file extension The 'typ' argument to all other functions is the actual file extension, but not here for some reason. May need this for iterating over the .bin files created by mod_http_file_share in the future.
author Kim Alvefur <zash@zash.se>
date Sun, 07 Feb 2021 19:23:33 +0100
parent 9927:1460c4966262
child 11641:b03053ec6dcf
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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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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
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9 local format = require "util.format".format;
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10 local setmetatable, rawset, pairs, ipairs, type =
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11 setmetatable, rawset, pairs, ipairs, type;
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12 local stdout = io.stdout;
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13 local io_open = io.open;
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14 local math_max, rep = math.max, string.rep;
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15 local os_date = os.date;
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16 local getstyle, getstring = require "util.termcolours".getstyle, require "util.termcolours".getstring;
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17
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18 local config = require "core.configmanager";
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19 local logger = require "util.logger";
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20
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21 local have_pposix, pposix = pcall(require, "util.pposix");
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22 have_pposix = have_pposix and pposix._VERSION == "0.4.0";
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23
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24 local _ENV = nil;
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25 -- luacheck: std none
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26
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27 -- The log config used if none specified in the config file (see reload_logging for initialization)
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28 local default_logging;
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29 local default_file_logging;
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30 local default_timestamp = "%b %d %H:%M:%S ";
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31 -- The actual config loggingmanager is using
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32 local logging_config;
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33
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34 local apply_sink_rules;
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35 local log_sink_types = setmetatable({}, { __newindex = function (t, k, v) rawset(t, k, v); apply_sink_rules(k); end; });
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36 local get_levels;
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37 local logging_levels = { "debug", "info", "warn", "error" }
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38
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39 -- Put a rule into action. Requires that the sink type has already been registered.
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40 -- This function is called automatically when a new sink type is added [see apply_sink_rules()]
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41 local function add_rule(sink_config)
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42 local sink_maker = log_sink_types[sink_config.to];
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43 if not sink_maker then
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44 return; -- No such sink type
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45 end
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46
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47 -- Create sink
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48 local sink = sink_maker(sink_config);
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49
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50 -- Set sink for all chosen levels
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51 for level in pairs(get_levels(sink_config.levels or logging_levels)) do
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52 logger.add_level_sink(level, sink);
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53 end
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54 end
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55
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56 -- Search for all rules using a particular sink type, and apply
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57 -- them. Called automatically when a new sink type is added to
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58 -- the log_sink_types table.
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59 function apply_sink_rules(sink_type)
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60 if type(logging_config) == "table" then
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61
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62 for _, level in ipairs(logging_levels) do
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63 if type(logging_config[level]) == "string" then
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64 local value = logging_config[level];
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65 if sink_type == "file" and not value:match("^%*") then
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66 add_rule({
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67 to = sink_type;
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68 filename = value;
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69 timestamps = true;
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70 levels = { min = level };
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71 });
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72 elseif value == "*"..sink_type then
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73 add_rule({
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74 to = sink_type;
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75 levels = { min = level };
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76 });
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77 end
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78 end
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79 end
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80
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81 for _, sink_config in ipairs(logging_config) do
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82 if (type(sink_config) == "table" and sink_config.to == sink_type) then
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83 add_rule(sink_config);
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84 elseif (type(sink_config) == "string" and sink_config:match("^%*(.+)") == sink_type) then
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85 add_rule({ levels = { min = "debug" }, to = sink_type });
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86 end
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87 end
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88 elseif type(logging_config) == "string" and (not logging_config:match("^%*")) and sink_type == "file" then
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89 -- User specified simply a filename, and the "file" sink type
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90 -- was just added
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91 for _, sink_config in pairs(default_file_logging) do
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92 sink_config.filename = logging_config;
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93 add_rule(sink_config);
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94 sink_config.filename = nil;
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95 end
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96 elseif type(logging_config) == "string" and logging_config:match("^%*(.+)") == sink_type then
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97 -- Log all levels (debug+) to this sink
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98 add_rule({ levels = { min = "debug" }, to = sink_type });
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99 end
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100 end
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101
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102
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103
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104 --- Helper function to get a set of levels given a "criteria" table
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105 function get_levels(criteria, set)
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106 set = set or {};
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107 if type(criteria) == "string" then
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108 set[criteria] = true;
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109 return set;
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110 end
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111 local min, max = criteria.min, criteria.max;
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112 if min or max then
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113 local in_range;
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114 for _, level in ipairs(logging_levels) do
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115 if min == level then
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116 set[level] = true;
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117 in_range = true;
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118 elseif max == level then
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119 set[level] = true;
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120 return set;
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121 elseif in_range then
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122 set[level] = true;
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123 end
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124 end
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125 end
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126
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127 for _, level in ipairs(criteria) do
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128 set[level] = true;
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129 end
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130 return set;
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131 end
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132
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133 -- Initialize config, etc. --
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134 local function reload_logging()
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135 local old_sink_types = {};
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136
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137 for name, sink_maker in pairs(log_sink_types) do
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138 old_sink_types[name] = sink_maker;
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139 log_sink_types[name] = nil;
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140 end
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141
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142 logger.reset();
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143
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144 local debug_mode = config.get("*", "debug");
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145
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146 default_logging = { { to = "console" , levels = { min = (debug_mode and "debug") or "info" } } };
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147 default_file_logging = {
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148 { to = "file", levels = { min = (debug_mode and "debug") or "info" }, timestamps = true }
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149 };
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150
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151 logging_config = config.get("*", "log") or default_logging;
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152
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153 for name, sink_maker in pairs(old_sink_types) do
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154 log_sink_types[name] = sink_maker;
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155 end
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156 end
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157
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158 --- Definition of built-in logging sinks ---
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159
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160 -- Null sink, must enter log_sink_types *first*
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161 local function log_to_nowhere()
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162 return function () return false; end;
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163 end
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164 log_sink_types.nowhere = log_to_nowhere;
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165
7134
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166 local function log_to_file(sink_config, logfile)
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167 logfile = logfile or io_open(sink_config.filename, "a+");
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168 if not logfile then
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169 return log_to_nowhere(sink_config);
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170 end
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171 local write = logfile.write;
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172
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173 local timestamps = sink_config.timestamps;
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174
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175 if timestamps == true or timestamps == nil then
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176 timestamps = default_timestamp; -- Default format
7137
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177 elseif timestamps then
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178 timestamps = timestamps .. " ";
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179 end
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180
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181 if sink_config.buffer_mode ~= false then
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182 logfile:setvbuf(sink_config.buffer_mode or "line");
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183 end
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184
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185 -- Column width for "source" (used by stdout and console)
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186 local sourcewidth = sink_config.source_width;
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187
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188 if sourcewidth then
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189 return function (name, level, message, ...)
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190 sourcewidth = math_max(#name+2, sourcewidth);
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191 write(logfile, timestamps and os_date(timestamps) or "", name, rep(" ", sourcewidth-#name), level, "\t", format(message, ...), "\n");
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192 end
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diff changeset
193 else
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194 return function (name, level, message, ...)
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195 write(logfile, timestamps and os_date(timestamps) or "", name, "\t", level, "\t", format(message, ...), "\n");
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196 end
7134
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197 end
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198 end
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199 log_sink_types.file = log_to_file;
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200
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diff changeset
201 local function log_to_stdout(sink_config)
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diff changeset
202 if not sink_config.timestamps then
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203 sink_config.timestamps = false;
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204 end
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diff changeset
205 if sink_config.source_width == nil then
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diff changeset
206 sink_config.source_width = 20;
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diff changeset
207 end
7135
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diff changeset
208 return log_to_file(sink_config, stdout);
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diff changeset
209 end
7134
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diff changeset
210 log_sink_types.stdout = log_to_stdout;
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211
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diff changeset
212 local do_pretty_printing = true;
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213
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diff changeset
214 local logstyles;
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diff changeset
215 if do_pretty_printing then
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diff changeset
216 logstyles = {};
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diff changeset
217 logstyles["info"] = getstyle("bold");
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diff changeset
218 logstyles["warn"] = getstyle("bold", "yellow");
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diff changeset
219 logstyles["error"] = getstyle("bold", "red");
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diff changeset
220 end
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diff changeset
221
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diff changeset
222 local function log_to_console(sink_config)
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diff changeset
223 -- Really if we don't want pretty colours then just use plain stdout
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diff changeset
224 local logstdout = log_to_stdout(sink_config);
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diff changeset
225 if not do_pretty_printing then
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diff changeset
226 return logstdout;
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diff changeset
227 end
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diff changeset
228 return function (name, level, message, ...)
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diff changeset
229 local logstyle = logstyles[level];
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diff changeset
230 if logstyle then
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231 level = getstring(logstyle, level);
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232 end
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233 return logstdout(name, level, message, ...);
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234 end
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235 end
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236 log_sink_types.console = log_to_console;
1031
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237
9927
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parents: 9925
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238 if have_pposix then
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239 local syslog_opened;
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240 local function log_to_syslog(sink_config) -- luacheck: ignore 212/sink_config
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241 if not syslog_opened then
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242 local facility = sink_config.syslog_facility or config.get("*", "syslog_facility");
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243 pposix.syslog_open(sink_config.syslog_name or "prosody", facility);
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244 syslog_opened = true;
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245 end
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246 local syslog = pposix.syslog_log;
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parents: 9925
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247 return function (name, level, message, ...)
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parents: 9925
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248 syslog(level, name, format(message, ...));
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parents: 9925
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249 end;
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Matthew Wild <mwild1@gmail.com>
parents: 9925
diff changeset
250 end
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parents: 9925
diff changeset
251 log_sink_types.syslog = log_to_syslog;
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parents: 9925
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252 end
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parents: 9925
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253
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parents: 6719
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254 local function register_sink_type(name, sink_maker)
1031
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parents: 1024
diff changeset
255 local old_sink_maker = log_sink_types[name];
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parents: 1024
diff changeset
256 log_sink_types[name] = sink_maker;
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parents: 1024
diff changeset
257 return old_sink_maker;
ec013f93de81 core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
Matthew Wild <mwild1@gmail.com>
parents: 1024
diff changeset
258 end
ec013f93de81 core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
Matthew Wild <mwild1@gmail.com>
parents: 1024
diff changeset
259
6779
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Kim Alvefur <zash@zash.se>
parents: 6719
diff changeset
260 return {
6236668da30a core.*: Remove use of module() function
Kim Alvefur <zash@zash.se>
parents: 6719
diff changeset
261 reload_logging = reload_logging;
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Kim Alvefur <zash@zash.se>
parents: 6719
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262 register_sink_type = register_sink_type;
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parents: 6719
diff changeset
263 }